{"id":2688,"date":"2023-01-29T06:17:01","date_gmt":"2023-01-28T22:17:01","guid":{"rendered":"http:\/\/dba.qishuo.xin\/?p=2688"},"modified":"2023-01-29T17:27:33","modified_gmt":"2023-01-29T09:27:33","slug":"ddd%e9%a2%86%e5%9f%9f%e9%a9%b1%e5%8a%a8%e8%ae%be%e8%ae%a1","status":"publish","type":"post","link":"http:\/\/dba.qishuo.xin\/?p=2688","title":{"rendered":"DDD\u9886\u57df\u9a71\u52a8\u8bbe\u8ba1"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_76 ez-toc-wrap-right counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<label for=\"ez-toc-cssicon-toggle-item-6a0d4358a8542\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a0d4358a8542\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#1_%E4%BB%80%E4%B9%88%E6%98%AFDDD\" >1. \u4ec0\u4e48\u662fDDD<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#11_%E9%A2%86%E5%9F%9F%E9%A9%B1%E5%8A%A8%E7%9A%84%E6%80%9D%E6%83%B3\" >1.1. \u9886\u57df\u9a71\u52a8\u7684\u601d\u60f3<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#12_%E9%A2%86%E5%9F%9F%E9%A9%B1%E5%8A%A8%E8%AE%BE%E8%AE%A1%E7%9A%84%E6%A0%B8%E5%BF%83\" >1.2. \u9886\u57df\u9a71\u52a8\u8bbe\u8ba1\u7684\u6838\u5fc3<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#13_DDD%E4%B8%AD%E4%BD%BF%E7%94%A8%E7%9A%84%E6%96%B9%E6%B3%95%E8%AE%BA\" >1.3. DDD\u4e2d\u4f7f\u7528\u7684\u65b9\u6cd5\u8bba<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#14_DDD%E8%AE%BE%E8%AE%A1%E6%A8%A1%E5%BC%8F\" >1.4. DDD\u8bbe\u8ba1\u6a21\u5f0f<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#2_DDD%E5%9B%9B%E5%B1%82%E6%9E%B6%E6%9E%84%E8%A7%84%E8%8C%83\" >2. DDD\u56db\u5c42\u67b6\u6784\u89c4\u8303<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#21_%E6%A8%A1%E5%9E%8B%E5%85%B3%E7%B3%BB%E5%9B%BE\" >2.1. \u6a21\u578b\u5173\u7cfb\u56fe<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#22_%E5%88%86%E5%B1%82%E7%9A%84%E5%8E%9F%E5%88%99\" >2.2. \u5206\u5c42\u7684\u539f\u5219<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#23_%E9%A2%86%E5%9F%9F%E6%A8%A1%E5%9E%8B%E4%B8%AD%E7%9A%84%E6%A6%82%E5%BF%B5\" >2.3. \u9886\u57df\u6a21\u578b\u4e2d\u7684\u6982\u5ff5<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#25_%E6%9E%B6%E6%9E%84%E4%B8%AD%E7%9A%84%E6%80%9D%E6%83%B3%E4%B8%8E%E6%96%B9%E6%B3%95\" >2.5. \u67b6\u6784\u4e2d\u7684\u601d\u60f3\u4e0e\u65b9\u6cd5<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#26_%E6%80%BB%E7%BB%93\" >2.6. \u603b\u7ed3<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#3_%E9%A2%86%E5%9F%9F%E6%A8%A1%E5%9E%8B%E4%B8%AD%E7%9A%84%E5%AE%9E%E4%BD%93%E7%B1%BB%E4%BB%8B%E7%BB%8D\" >3. \u9886\u57df\u6a21\u578b\u4e2d\u7684\u5b9e\u4f53\u7c7b\u4ecb\u7ecd<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#31_VO-View_Object\" >3.1. VO-View Object<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#32_DTO-Data_Transfer_Object\" >3.2. DTO-Data Transfer Object<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#33_VO%E4%B8%8EDTO%E7%9A%84%E5%8C%BA%E5%88%AB\" >3.3. VO\u4e0eDTO\u7684\u533a\u522b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#34_VO%E4%B8%8EDTO%E7%9A%84%E5%BA%94%E7%94%A8\" >3.4. VO\u4e0eDTO\u7684\u5e94\u7528<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#35_DO\" >3.5. DO<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#36_DTO%E4%B8%8EDO%E7%9A%84%E5%8C%BA%E5%88%AB\" >3.6. DTO\u4e0eDO\u7684\u533a\u522b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#37_DTO%E4%B8%8EDO%E7%9A%84%E5%BA%94%E7%94%A8\" >3.7. DTO\u4e0eDO\u7684\u5e94\u7528<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#38_PO-Persistent_Object\" >3.8. PO-Persistent Object<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#39_DO%E4%B8%8EPO%E7%9A%84%E5%8C%BA%E5%88%AB\" >3.9. DO\u4e0ePO\u7684\u533a\u522b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#310_DO%E4%B8%8EPO%E7%9A%84%E5%BA%94%E7%94%A8\" >3.10. DO\u4e0ePO\u7684\u5e94\u7528<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#311_%E6%80%BB%E7%BB%93\" >3.11. \u603b\u7ed3<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#4_%E9%A2%86%E5%9F%9F%E5%BB%BA%E6%A8%A1%E7%9A%84%E6%AD%A5%E9%AA%A4\" >4. \u9886\u57df\u5efa\u6a21\u7684\u6b65\u9aa4<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#41_%E7%BB%9F%E4%B8%80%E8%AF%AD%E8%A8%80%EF%BC%8C%E6%A2%B3%E7%90%86%E4%B8%9A%E5%8A%A1\" >4.1. \u7edf\u4e00\u8bed\u8a00\uff0c\u68b3\u7406\u4e1a\u52a1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#42_%E5%88%92%E5%88%86%E9%99%90%E7%95%8C%E4%B8%8A%E4%B8%8B%E6%96%87\" >4.2. \u5212\u5206\u9650\u754c\u4e0a\u4e0b\u6587<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#43_%E8%AF%86%E5%88%AB%E8%81%9A%E5%90%88%E3%80%81%E8%81%9A%E5%90%88%E6%A0%B9\" >4.3. \u8bc6\u522b\u805a\u5408\u3001\u805a\u5408\u6839<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#44_%E8%AE%BE%E8%AE%A1%E5%B0%8F%E8%81%9A%E5%90%88\" >4.4. \u8bbe\u8ba1\u5c0f\u805a\u5408<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#45_%E9%80%9A%E8%BF%87%E5%94%AF%E4%B8%80%E6%A0%87%E8%AF%86%E5%BC%95%E7%94%A8%E5%85%B6%E5%AE%83%E8%81%9A%E5%90%88\" >4.5. \u901a\u8fc7\u552f\u4e00\u6807\u8bc6\u5f15\u7528\u5176\u5b83\u805a\u5408<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#46_%E5%9C%A8%E8%BE%B9%E7%95%8C%E4%B9%8B%E5%A4%96%E4%BD%BF%E7%94%A8%E6%9C%80%E7%BB%88%E4%B8%80%E8%87%B4%E6%80%A7\" >4.6. \u5728\u8fb9\u754c\u4e4b\u5916\u4f7f\u7528\u6700\u7ec8\u4e00\u81f4\u6027<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#47_%E9%80%9A%E8%BF%87%E5%BA%94%E7%94%A8%E5%B1%82%E5%AE%9E%E7%8E%B0%E8%B7%A8%E8%81%9A%E5%90%88%E7%9A%84%E6%9C%8D%E5%8A%A1%E8%B0%83%E7%94%A8\" >4.7. \u901a\u8fc7\u5e94\u7528\u5c42\u5b9e\u73b0\u8de8\u805a\u5408\u7684\u670d\u52a1\u8c03\u7528<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#5_%E6%9E%B6%E6%9E%84%E8%AE%BE%E8%AE%A1\" >5. \u67b6\u6784\u8bbe\u8ba1<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#51_%E6%9C%8D%E5%8A%A1%E8%B0%83%E7%94%A8\" >5.1. \u670d\u52a1\u8c03\u7528<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#52_%E8%B7%A8%E5%BA%93%E5%85%B3%E8%81%94%E6%9F%A5%E8%AF%A2%E8%A7%A3%E5%86%B3%E6%96%B9%E6%A1%88\" >5.2. \u8de8\u5e93\u5173\u8054\u67e5\u8be2\u89e3\u51b3\u65b9\u6848<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-35\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#53_CQRS\" >5.3. CQRS<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-36\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#54_Event_Sourcing_%E4%BA%8B%E4%BB%B6%E6%BA%AF%E6%BA%90\" >5.4. Event Sourcing \u4e8b\u4ef6\u6eaf\u6e90<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-37\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#55_%E6%95%B4%E6%B4%81%E6%9E%B6%E6%9E%84\" >5.5. \u6574\u6d01\u67b6\u6784<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-38\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#56_%E5%85%AD%E8%BE%B9%E5%BD%A2%E6%9E%B6%E6%9E%84\" >5.6. \u516d\u8fb9\u5f62\u67b6\u6784<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-39\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#57_%E6%B8%85%E6%99%B0%E6%9E%B6%E6%9E%84\" >5.7. \u6e05\u6670\u67b6\u6784<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-40\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#6_%E5%BE%AE%E6%9C%8D%E5%8A%A1%E6%9E%B6%E6%9E%8450\" >6. \u5fae\u670d\u52a1\u67b6\u67845.0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-41\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#7_%E4%BB%A3%E7%A0%81%E6%A8%A1%E5%9E%8B\" >7. \u4ee3\u7801\u6a21\u578b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-42\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#%E9%99%84%E5%BD%95\" >\u9644\u5f55<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-43\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#%E9%99%84%E5%BD%95A_%E7%9B%B8%E5%85%B3%E8%81%94%E7%9A%84%E6%96%87%E7%AB%A0\" >\u9644\u5f55A. \u76f8\u5173\u8054\u7684\u6587\u7ae0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-44\" href=\"http:\/\/dba.qishuo.xin\/?p=2688\/#%E9%99%84%E5%BD%95B_%E5%85%B6%E4%BB%96%E5%8F%82%E8%80%83\" >\u9644\u5f55B. \u5176\u4ed6\u53c2\u8003<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h3><span class=\"ez-toc-section\" id=\"1_%E4%BB%80%E4%B9%88%E6%98%AFDDD\"><\/span>1. \u4ec0\u4e48\u662fDDD<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>2004\u5e74Eric Evans \u53d1\u8868\u300a\u9886\u57df\u9a71\u52a8\u8bbe\u8ba1\u2014\u2014\u8f6f\u4ef6\u6838\u5fc3\u590d\u6742\u6027\u5e94\u5bf9\u4e4b\u9053\u300b\uff08Domain-Driven Design \u2013Tackling Complexity in the Heart of Software\uff09\uff0c\u7b80\u79f0Evans DDD\uff0c\u9886\u57df\u9a71\u52a8\u8bbe\u8ba1\u601d\u60f3\u8fdb\u5165\u8f6f\u4ef6\u5f00\u53d1\u8005\u7684\u89c6\u91ce\u3002\u9886\u57df\u9a71\u52a8\u8bbe\u8ba1\u5206\u4e3a\u4e24\u4e2a\u9636\u6bb5\uff1a<\/p>\n<ol>\n<li>\u4ee5\u4e00\u79cd\u9886\u57df\u4e13\u5bb6\u3001\u8bbe\u8ba1\u4eba\u5458\u3001\u5f00\u53d1\u4eba\u5458\u90fd\u80fd\u7406\u89e3\u7684\u901a\u7528\u8bed\u8a00\u4f5c\u4e3a\u76f8\u4e92\u4ea4\u6d41\u7684\u5de5\u5177\uff0c\u5728\u4ea4\u6d41\u7684\u8fc7\u7a0b\u4e2d\u53d1\u73b0\u9886\u57df\u6982\u5ff5\uff0c\u7136\u540e\u5c06\u8fd9\u4e9b\u6982\u5ff5\u8bbe\u8ba1\u6210\u4e00\u4e2a\u9886\u57df\u6a21\u578b\uff1b<\/li>\n<li>\u7531\u9886\u57df\u6a21\u578b\u9a71\u52a8\u8f6f\u4ef6\u8bbe\u8ba1\uff0c\u7528\u4ee3\u7801\u6765\u5b9e\u73b0\u8be5\u9886\u57df\u6a21\u578b\uff1b<\/li>\n<\/ol>\n<p>\u7b80\u5355\u5730\u8bf4\uff0c\u8f6f\u4ef6\u5f00\u53d1\u4e0d\u662f\u4e00\u8e74\u800c\u5c31\u7684\u4e8b\u60c5\uff0c\u6211\u4eec\u4e0d\u53ef\u80fd\u5728\u4e0d\u4e86\u89e3\u4ea7\u54c1\uff08\u6216\u884c\u4e1a\u9886\u57df\uff09\u7684\u524d\u63d0\u4e0b\u8fdb\u884c\u8f6f\u4ef6\u5f00\u53d1\uff0c\u5728\u5f00\u53d1\u524d\uff0c\u901a\u5e38\u9700\u8981\u8fdb\u884c\u5927\u91cf\u7684\u4e1a\u52a1\u77e5\u8bc6\u68b3\u7406\uff0c\u800c\u540e\u5230\u8fbe\u8f6f\u4ef6\u8bbe\u8ba1\u7684\u5c42\u9762\uff0c\u6700\u540e\u624d\u662f\u5f00\u53d1\u3002\u800c\u5728\u4e1a\u52a1\u77e5\u8bc6\u68b3\u7406\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u5fc5\u7136\u4f1a\u5f62\u6210\u67d0\u4e2a\u9886\u57df\u77e5\u8bc6\uff0c\u6839\u636e\u9886\u57df\u77e5\u8bc6\u6765\u4e00\u6b65\u6b65\u9a71\u52a8\u8f6f\u4ef6\u8bbe\u8ba1\uff0c\u5c31\u662f\u9886\u57df\u9a71\u52a8\u8bbe\u8ba1\u7684\u57fa\u672c\u6982\u5ff5\u3002\u800c\u9886\u57df\u9a71\u52a8\u8bbe\u8ba1\u7684\u6838\u5fc3\u5c31\u5728\u4e8e\u5efa\u7acb\u6b63\u786e\u7684\u9886\u57df\u9a71\u52a8\u6a21\u578b\u3002<\/p>\n<p>DDD\u4e0d\u662f\u4e00\u79cd\u67b6\u6784\uff0c\u800c\u662f\u4e00\u79cd\u67b6\u6784\u65b9\u6cd5\u8bba\uff0c\u662f\u4e00\u79cd\u62c6\u89e3\u4e1a\u52a1\u3001\u5212\u5206\u4e1a\u52a1\u3001\u786e\u5b9a\u4e1a\u52a1\u8fb9\u754c\u7684\u65b9\u6cd5\uff0c \u88ab\u8ba4\u4e3a\u662f\u4e00\u79cd\u9ad8\u5ea6\u590d\u6742\u7684\u9886\u57df\u8bbe\u8ba1\u601d\u60f3\u3002\u7b80\u5355\u7684\u6765\u8bf4\uff0c\u662f\u4e3a\u4e86\u5b9e\u73b0\u590d\u6742\u95ee\u9898\u9886\u57df\u7b80\u5355\u5316\uff0c\u5e2e\u52a9\u6211\u4eec\u8bbe\u8ba1\u51fa\u6e05\u6670\u7684\u9886\u57df\u548c\u8fb9\u754c\uff0c\u4ee5\u4fbf\u4e8e\u66f4\u597d\u63a8\u8fdb\u6280\u672f\u67b6\u6784\u7684\u6f14\u8fdb\u3002<\/p>\n<p>\u4e1a\u52a1\u7684\u5feb\u901f\u53d8\u5316\u9a71\u52a8\u7740\u8f6f\u4ef6\u7cfb\u7edf\u8d8a\u53d8\u8d8a\u590d\u6742\uff0cDDD\u662f\u4e3a\u4e86\u89e3\u51b3\u7279\u522b\u590d\u6742\u800c\u4e14\u5feb\u901f\u53d8\u5316\u7684\u4e1a\u52a1\u7cfb\u7edf\u3002DDD \u53ef\u4ee5\u5f88\u597d\u5b9e\u73b0\u5fae\u670d\u52a1\u5185\u90e8\u548c\u5916\u90e8\u7684&quot;\u9ad8\u5185\u805a\u3001\u4f4e\u8026\u5408&quot;\u3002<\/p>\n<p><strong><font color=purple>DDD\u7684\u6838\u5fc3\u8bc9\u6c42\u5c31\u662f\u5c06\u4e1a\u52a1\u67b6\u6784\u6620\u5c04\u5230\u7cfb\u7edf\u67b6\u6784\u4e0a\uff0c\u5728\u54cd\u5e94\u4e1a\u52a1\u53d8\u5316\u8c03\u6574\u4e1a\u52a1\u67b6\u6784\u65f6\uff0c\u4e5f\u968f\u4e4b\u53d8\u5316\u7cfb\u7edf\u67b6\u6784\u3002\u800c\u5fae\u670d\u52a1\u8ffd\u6c42\u4e1a\u52a1\u5c42\u9762\u7684\u590d\u7528\uff0c\u8bbe\u8ba1\u51fa\u6765\u7684\u7cfb\u7edf\u67b6\u6784\u548c\u4e1a\u52a1\u4e00\u81f4\uff1b\u5728\u6280\u672f\u67b6\u6784\u4e0a\u5219\u7cfb\u7edf\u6a21\u5757\u4e4b\u95f4\u5145\u5206\u89e3\u8026\uff0c\u53ef\u4ee5\u81ea\u7531\u5730\u9009\u62e9\u5408\u9002\u7684\u6280\u672f\u67b6\u6784\uff0c\u53bb\u4e2d\u5fc3\u5316\u5730\u6cbb\u7406\u6280\u672f\u548c\u6570\u636e\u3002<\/font><\/strong><\/p>\n<p><font color=red>\u6211\u4eec\u9700\u8981\u5c06\u9762\u5411\u5177\u4f53\u5b9e\u73b0\u7f16\u7a0b\u6539\u9020\u4e3a\u9762\u5411\u62bd\u8c61\u63a5\u53e3\u7f16\u7a0b\u3002DDD\u4f5c\u4e3a\u4e00\u79cd\u601d\u60f3\u6765\u8f85\u52a9\u6211\u4eec\u8bbe\u8ba1\u3002<\/font><\/p>\n<h4><span class=\"ez-toc-section\" id=\"11_%E9%A2%86%E5%9F%9F%E9%A9%B1%E5%8A%A8%E7%9A%84%E6%80%9D%E6%83%B3\"><\/span>1.1. \u9886\u57df\u9a71\u52a8\u7684\u601d\u60f3<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u8f6f\u4ef6\u7684\u672c\u8d28\u662f\u5bf9\u771f\u5b9e\u4e16\u754c\u7684\u6a21\u62df\uff0c\u8f6f\u4ef6\u8bbe\u8ba1\u4e0e\u771f\u5b9e\u4e16\u754c\u5bf9\u5e94\u7684\u5173\u7cfb\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674440956372.png\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674440956372.png\" alt=\"file\" \/><\/a><\/p>\n<p>\u771f\u5b9e\u4e16\u754c\u662f\u4ec0\u4e48\u6837\uff0c\u8f6f\u4ef6\u8bbe\u8ba1\u5c31\u600e\u4e48\u8bbe\u8ba1\uff0c\u5728\u6bcf\u6b21\u9700\u6c42\u53d8\u66f4\u7684\u65f6\u5019\u5c06\u53d8\u66f4\u8fd8\u539f\u5230\u771f\u5b9e\u4e16\u754c\u4e2d\uff0c\u770b\u770b\u771f\u5b9e\u4e16\u754c\u662f\u4ec0\u4e48\u6837\u5b50\u7684\uff0c\u6839\u636e\u771f\u5b9e\u4e16\u754c\u8fdb\u884c\u53d8\u66f4\u3002\u8fd9\u6837\u65e5\u540e\u65e0\u8bba\u600e\u4e48\u53d8\u66f4\uff0c\u7ecf\u8fc7\u591a\u5c11\u8f6e\u53d8\u66f4\uff0c\u90fd\u6309\u7167\u8fd9\u6837\u7684\u65b9\u6cd5\u8fdb\u884c\u8bbe\u8ba1\u5c31\u4e0d\u4f1a\u8ff7\u5931\u65b9\u5411\uff0c\u8bbe\u8ba1\u8d28\u91cf\u5c31\u53ef\u4ee5\u5f97\u5230\u4fdd\u8bc1\uff0c\u8fd9\u5c31\u662f\u9886\u57df\u9a71\u52a8\u8bbe\u8ba1\u7684\u601d\u60f3\u3002<\/p>\n<ol>\n<li>\u771f\u5b9e\u4e16\u754c\u6709\u4ec0\u4e48\u4e8b\u7269\uff0c\u8f6f\u4ef6\u4e16\u754c\u5c31\u6709\u4ec0\u4e48\u5bf9\u8c61\u3002<\/li>\n<li>\u771f\u5b9e\u4e16\u754c\u4e2d\u8fd9\u4e9b\u4e8b\u7269\u90fd\u6709\u54ea\u4e9b\u884c\u4e3a\uff0c\u8f6f\u4ef6\u4e16\u754c\u4e2d\u8fd9\u4e9b\u5bf9\u8c61\u5c31\u6709\u54ea\u4e9b\u65b9\u6cd5\u3002<\/li>\n<li>\u771f\u5b9e\u4e16\u754c\u4e2d\u8fd9\u4e9b\u4e8b\u7269\u95f4\u90fd\u6709\u54ea\u4e9b\u5173\u7cfb\uff0c\u8f6f\u4ef6\u4e16\u754c\u4e2d\u8fd9\u4e9b\u5bf9\u8c61\u95f4\u5c31\u6709\u4ec0\u4e48\u5173\u8054\u3002<\/li>\n<\/ol>\n<p><font color=red>\u5728\u9886\u57df\u9a71\u52a8\u8bbe\u8ba1\u4e2d\u5c31\u5c06\u4ee5\u4e0a\u4e09\u4e2a\u5bf9\u5e94\u5148\u505a\u6210\u4e00\u4e2a\u9886\u57df\u6a21\u578b\uff0c\u7136\u540e\u901a\u8fc7\u8fd9\u4e2a\u9886\u57df\u6a21\u578b\u6307\u5bfc\u7a0b\u5e8f\u8bbe\u8ba1\uff0c\u5728\u6bcf\u6b21\u9700\u6c42\u53d8\u66f4\u65f6\u5148\u5c06\u9700\u6c42\u8fd8\u539f\u5230\u9886\u57df\u6a21\u578b\u4e2d\u5206\u6790\uff0c\u6839\u636e\u9886\u57df\u6a21\u578b\u80cc\u540e\u7684\u771f\u5b9e\u4e16\u754c\u8fdb\u884c\u53d8\u66f4\uff0c\u7136\u540e\u6839\u636e\u9886\u57df\u6a21\u578b\u7684\u53d8\u66f4\u6307\u5bfc\u8f6f\u4ef6\u7684\u53d8\u66f4\uff0c\u8bbe\u8ba1\u8d28\u91cf\u5c31\u53ef\u4ee5\u5f97\u5230\u63d0\u9ad8\u3002\u603b\u4e4b\uff0c\u8f6f\u4ef6\u53d1\u5c55\u7684\u89c4\u5f8b\u5c31\u662f\u9010\u6b65\u7531\u7b80\u5355\u8f6f\u4ef6\u5411\u590d\u6742\u8f6f\u4ef6\u8f6c\u53d8\uff0c\u7b80\u5355\u8f6f\u4ef6\u6709\u7b80\u5355\u8f6f\u4ef6\u7684\u8bbe\u8ba1\uff0c\u590d\u6742\u8f6f\u4ef6\u6709\u590d\u6742\u8f6f\u4ef6\u7684\u8bbe\u8ba1\uff0c\u56e0\u6b64\u5f53\u7b80\u5355\u8f6f\u4ef6\u5411\u590d\u6742\u8f6f\u4ef6\u8f6c\u53d8\u65f6\uff0c\u5c31\u9700\u8981\u901a\u8fc7\u201c\u4e24\u9876\u5e3d\u5b50\u201d\u9002\u65f6\u5730\u5bf9\u7a0b\u5e8f\u7ed3\u6784\u8fdb\u884c\u8c03\u6574\uff0c\u518d\u5b9e\u73b0\u65b0\u9700\u6c42\uff0c\u53ea\u6709\u8fd9\u6837\u624d\u80fd\u4fdd\u8bc1\u8f6f\u4ef6\u4e0d\u9000\u5316\u3002<\/font><\/p>\n<h4><span class=\"ez-toc-section\" id=\"12_%E9%A2%86%E5%9F%9F%E9%A9%B1%E5%8A%A8%E8%AE%BE%E8%AE%A1%E7%9A%84%E6%A0%B8%E5%BF%83\"><\/span>1.2. \u9886\u57df\u9a71\u52a8\u8bbe\u8ba1\u7684\u6838\u5fc3<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u9886\u57df\u9a71\u52a8\u8bbe\u8ba1\u7684\u6838\u5fc3\u662f\u9886\u57df\u6a21\u578b\uff0c\u8fd9\u4e00\u65b9\u6cd5\u8bba\u53ef\u4ee5\u901a\u4fd7\u7684\u7406\u89e3\u4e3a\u5148\u627e\u5230\u4e1a\u52a1\u4e2d\u7684\u9886\u57df\u6a21\u578b\uff0c\u4ee5\u9886\u57df\u6a21\u578b\u4e3a\u4e2d\u5fc3\u9a71\u52a8\u9879\u76ee\u7684\u5f00\u53d1\u3002\u800c\u9886\u57df\u6a21\u578b\u7684\u8bbe\u8ba1\u7cbe\u9ad3\u5728\u4e8e\u9762\u5411\u5bf9\u8c61\u5206\u6790\uff0c\u5728\u4e8e\u5bf9\u4e8b\u7269\u7684\u62bd\u8c61\u80fd\u529b\uff0c\u4e00\u4e2a\u9886\u57df\u9a71\u52a8\u67b6\u6784\u5e08\u5fc5\u7136\u662f\u4e00\u4e2a\u9762\u5411\u5bf9\u8c61\u5206\u6790\u7684\u5927\u5e08\u3002<\/p>\n<p>\u5728\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u4e2d\u8bb2\u7a76\u5c01\u88c5\uff0c\u8bb2\u7a76\u8bbe\u8ba1\u4f4e\u8026\u5408\uff0c\u9ad8\u5185\u805a\u7684\u7c7b\u3002\u800c\u5bf9\u4e8e\u4e00\u4e2a\u8f6f\u4ef6\u5de5\u7a0b\u6765\u8bb2\uff0c\u4ec5\u4ec5\u53ea\u9760\u7c7b\u7684\u8bbe\u8ba1\u662f\u4e0d\u591f\u7684\uff0c\u6211\u4eec\u9700\u8981\u628a\u7d27\u5bc6\u8054\u7cfb\u5728\u4e00\u8d77\u7684\u4e1a\u52a1\u8bbe\u8ba1\u4e3a\u4e00\u4e2a\u9886\u57df\u6a21\u578b\uff0c\u8ba9\u9886\u57df\u6a21\u578b\u5185\u90e8\u9690\u85cf\u4e00\u4e9b\u7ec6\u8282\uff0c\u8fd9\u6837\u4e00\u6765\u9886\u57df\u6a21\u578b\u548c\u9886\u57df\u6a21\u578b\u4e4b\u95f4\u7684\u5173\u7cfb\u5c31\u4f1a\u53d8\u5f97\u7b80\u5355\u3002\u8fd9\u4e00\u601d\u60f3\u6709\u6548\u7684\u964d\u4f4e\u4e86\u590d\u6742\u7684\u4e1a\u52a1\u4e4b\u95f4\u5343\u4e1d\u4e07\u7f15\u7684\u8026\u5408\u5173\u7cfb\u3002<\/p>\n<h4><span class=\"ez-toc-section\" id=\"13_DDD%E4%B8%AD%E4%BD%BF%E7%94%A8%E7%9A%84%E6%96%B9%E6%B3%95%E8%AE%BA\"><\/span>1.3. DDD\u4e2d\u4f7f\u7528\u7684\u65b9\u6cd5\u8bba<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674485265768.png\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674485265768.png\" alt=\"file\" \/><\/a><\/p>\n<h4><span class=\"ez-toc-section\" id=\"14_DDD%E8%AE%BE%E8%AE%A1%E6%A8%A1%E5%BC%8F\"><\/span>1.4. DDD\u8bbe\u8ba1\u6a21\u5f0f<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ol>\n<li>\u8d2b\u8840\u6a21\u578b\n<ul>\n<li>POJO \u6ca1\u6709\u4e1a\u52a1<\/li>\n<li>\u4e1a\u52a1\u4ea4\u7531Service\u5904\u7406<\/li>\n<\/ul>\n<\/li>\n<li>\u5145\u8840\u6a21\u578b\n<ul>\n<li>DAO \u8d1f\u8d23\u548c\u4e1a\u52a1\u6620\u5c04<\/li>\n<li>DO \u8d1f\u8d23DB\u6620\u5c04<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3><span class=\"ez-toc-section\" id=\"2_DDD%E5%9B%9B%E5%B1%82%E6%9E%B6%E6%9E%84%E8%A7%84%E8%8C%83\"><\/span>2. DDD\u56db\u5c42\u67b6\u6784\u89c4\u8303<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"21_%E6%A8%A1%E5%9E%8B%E5%85%B3%E7%B3%BB%E5%9B%BE\"><\/span>2.1. \u6a21\u578b\u5173\u7cfb\u56fe<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674366903384.png\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674366903384.png\" alt=\"file\" \/><\/a><\/p>\n<p><a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674438763882.png\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674438763882.png\" alt=\"file\" \/><\/a><\/p>\n<ul>\n<li>\n<p>\u57fa\u7840\u5c42\uff08Infrastructure Layer\uff09\uff1a\u4e1a\u52a1\u4e0e\u6570\u636e\u5206\u79bb\u3002\u4e3a\u9886\u57df\u5c42\u63d0\u4f9b\u6301\u4e45\u5316\u670d\u52a1\uff0c\u4e3a\u5176\u5b83\u5c42\u63d0\u4f9b\u901a\u7528\u80fd\u529b\u3002<br \/>\n<a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674438991314.png\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674438991314.png\" alt=\"file\" \/><\/a><\/p>\n<\/li>\n<li>\n<p>\u9886\u57df\u5c42\uff08Domain Layer\uff09\uff1a \u7cfb\u7edf\u7684\u6838\u5fc3\uff0c\u7eaf\u7cb9\u8868\u8fbe\u4e1a\u52a1\u80fd\u529b\uff0c\u4e0d\u9700\u8981\u4efb\u4f55\u5916\u90e8\u4f9d\u8d56\uff0c<font color=red>\u9886\u57df\u670d\u52a1\u4e4b\u95f4\u53ef\u4ee5\u76f8\u4e92\u8c03\u7528\uff0c\u4f46\u7edd\u5bf9\u4e0d\u80fd\u628a\u522b\u7684\u9886\u57df\u7684\u4e1a\u52a1\u903b\u8f91\u5199\u5230\u81ea\u8eab\u9886\u57df\u4e2d\u6765<\/font>\u3002<br \/>\n<a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674439020496.png\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674439020496.png\" alt=\"file\" \/><\/a><\/p>\n<\/li>\n<li>\n<p>\u5e94\u7528\u5c42\uff08Application Layer\uff09\uff1a\u534f\u8c03\u9886\u57df\u5bf9\u8c61\uff0c\u7ec4\u7ec7\u5f62\u6210\u4e1a\u52a1\u573a\u666f\uff0c\u53ea\u4f9d\u8d56\u4e8e\u9886\u57df\u5c42\u3002<br \/>\n<a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674439037674.png\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674439037674.png\" alt=\"file\" \/><\/a><\/p>\n<\/li>\n<li>\n<p>\u7528\u6237\u5c42\uff08User Interface\uff09\uff1a\u8d1f\u8d23\u4e0e\u7528\u6237\u8fdb\u884c\u4ea4\u4e92\u3002\u7406\u89e3\u7528\u6237\u8bf7\u6c42\uff0c\u8fd4\u56de\u7528\u6237\u54cd\u5e94\u3002\u53ea\u4f9d\u8d56\u4e8e\u5e94\u7528\u5c42\u3002(<font color=red>\u5b83\u662f\u4e0d\u662f\u53ef\u4ee5\u8bbf\u95ee\u9886\u57df\u5c42\uff1f<\/font>)<br \/>\n<a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674439070606.png\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674439070606.png\" alt=\"file\" \/><\/a><\/p>\n<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"22_%E5%88%86%E5%B1%82%E7%9A%84%E5%8E%9F%E5%88%99\"><\/span>2.2. \u5206\u5c42\u7684\u539f\u5219<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u5728\u300a\u5b9e\u73b0\u9886\u57df\u9a71\u52a8\u8bbe\u8ba1\u300b\u4e00\u4e66\u4e2d\uff0cDDD \u5206\u5c42\u67b6\u6784\u6709\u4e00\u4e2a\u91cd\u8981\u7684\u539f\u5219\uff1a\u6bcf\u5c42\u53ea\u80fd\u4e0e\u4f4d\u4e8e\u5176\u4e0b\u65b9\u7684\u5c42\u53d1\u751f\u8026\u5408\u3002<\/p>\n<ul>\n<li>\n<p>\u4e25\u683c\u5206\u5c42\u67b6\u6784<br \/>\n\u4f18\u5316\u540e\u7684 DDD \u5206\u5c42\u67b6\u6784\u6a21\u578b\u5c31\u5c5e\u4e8e\u4e25\u683c\u5206\u5c42\u67b6\u6784\uff0c\u4efb\u4f55\u5c42\u53ea\u80fd\u5bf9\u4f4d\u4e8e\u5176\u76f4\u63a5\u4e0b\u65b9\u7684\u5c42\u4ea7\u751f\u4f9d\u8d56\u3002\u5373\u9886\u57df\u670d\u52a1\u53ea\u80fd\u88ab\u5e94\u7528\u670d\u52a1\u8c03\u7528\uff0c\u800c\u5e94\u7528\u670d\u52a1\u53ea\u80fd\u88ab\u7528\u6237\u63a5\u53e3\u5c42\u8c03\u7528\uff0c\u670d\u52a1\u662f\u9010\u5c42\u5bf9\u5916\u5c01\u88c5\u6216\u7ec4\u5408\u7684\uff0c\u4f9d\u8d56\u5173\u7cfb\u6e05\u6670\u3002<\/p>\n<\/li>\n<li>\n<p>\u677e\u6563\u5206\u5c42\u67b6\u6784<br \/>\n\u800c\u4f20\u7edf\u7684 DDD \u5206\u5c42\u67b6\u6784\u5219\u5c5e\u4e8e\u677e\u6563\u5206\u5c42\u67b6\u6784\uff0c\u5b83\u5141\u8bb8\u67d0\u5c42\u4e0e\u5176\u4efb\u610f\u4e0b\u65b9\u7684\u5c42\u53d1\u751f\u4f9d\u8d56\u3002\u670d\u52a1\u7684\u4f9d\u8d56\u5173\u7cfb\u6bd4\u8f83\u590d\u6742\u4e14\u96be\u7ba1\u7406\uff0c\u751a\u81f3\u5bb9\u6613\u4f7f\u6838\u5fc3\u4e1a\u52a1\u903b\u8f91\u5916\u6cc4\u3002<\/p>\n<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"23_%E9%A2%86%E5%9F%9F%E6%A8%A1%E5%9E%8B%E4%B8%AD%E7%9A%84%E6%A6%82%E5%BF%B5\"><\/span>2.3. \u9886\u57df\u6a21\u578b\u4e2d\u7684\u6982\u5ff5<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><strong><font color=orange>\u9886\u57df\u7684\u6574\u4f53\u6982\u5ff5\u56fe<\/font><\/strong><\/p>\n<p><a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674483893510.png\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674483893510.png\" alt=\"file\" \/><\/a><\/p>\n<p><strong><font color=orange>\u9886\u57df\u6982\u5ff5\u8111\u56fe<\/font><\/strong><\/p>\n<p><a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/v2-81eb13cd891a288f2adcef2d7987a437_r-scaled.jpg\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/v2-81eb13cd891a288f2adcef2d7987a437_r-scaled.jpg\" alt=\"file\" \/><\/a><\/p>\n<ul>\n<li><strong>\u9886\u57df<\/strong><br \/>\n\u9886\u57df\u53ef\u4ee5\u62c6\u5206\u4e3a\u591a\u4e2a\u5b50\u9886\u57df\u3002\u4e00\u4e2a\u9886\u57df\u76f8\u5f53\u4e8e\u4e00\u4e2a\u95ee\u9898\u57df\uff0c\u9886\u57df\u62c6\u5206\u4e3a\u5b50\u57df\u7684\u8fc7\u7a0b\u5c31\u662f\u5927\u95ee\u9898\u62c6\u5206\u4e3a\u5c0f\u95ee\u9898\u7684\u8fc7\u7a0b\u3002\u4f8b\u5982\uff1a\u4fdd\u9669\u9886\u57df\u88ab\u62c6\u5206\u4e3a<code>\u6295\u4fdd<\/code>\u3001<code>\u652f\u4ed8<\/code>\u3001<code>\u4fdd\u5355\u7ba1\u7406<\/code>\u548c<code>\u7406\u8d54<\/code>\u56db\u4e2a\u5b50\u57df\u3002<\/li>\n<\/ul>\n<p><a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674483596214.png\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674483596214.png\" alt=\"file\" \/><\/a><\/p>\n<ul>\n<li>\n<p><strong>\u9650\u754c\u4e0a\u4e0b\u6587-Bounded['ba\u028and\u026ad] Context[\u02c8k\u0251n\u02cctekst]<\/strong><br \/>\n\u9650\u7684\u610f\u601d\u5c31\u662f\u5212\u5206\u3001\u89c4\u5b9a\uff1b\u754c\u5c31\u662f\u754c\u9650\u3001\u8fb9\u754c\uff1b\u4e0a\u4e0b\u6587\u5c31\u662f\u4e1a\u52a1\u7684\u6574\u4e2a\u6d41\u7a0b\u3002<br \/>\n<font color=purple>\u9650\u754c\u4e0a\u4e0b\u6587\u662f\u4e00\u4e2a\u8bed\u4e49\u4e0a\u7684\u8fb9\u754c\uff0c\u5728\u8fb9\u754c\u5185\uff0c\u901a\u7528\u8bed\u8a00\u4e2d\u7684\u6240\u6709\u672f\u8bed\u548c\u8bcd\u7ec4\u90fd\u6709\u7279\u5b9a\u7684\u542b\u4e49\u3002\u5728\u5f88\u591a\u60c5\u51b5\u4e0b\uff0c\u5728\u4e0d\u540c\u6a21\u578b\u4e2d\u5b58\u5728\u540d\u5b57\u76f8\u540c\u6216\u76f8\u8fd1\u7684\u5bf9\u8c61\uff0c\u4f46\u662f\u5b83\u4eec\u7684\u610f\u4e49\u5374\u4e0d\u540c\u3002\u5f53\u6a21\u578b\u88ab\u4e00\u4e2a\u663e\u793a\u7684\u8fb9\u754c\u5305\u56f4\u65f6\uff0c\u5176\u4e2d\u6bcf\u4e2a\u6982\u5ff5\u7684\u542b\u4e49\u90fd\u662f\u660e\u786e\u7684\u3002\u6bd4\u5982\u7528\u6237\uff0c\u53ef\u80fd\u662fC\u7aef\u7684\u4ea7\u54c1\u4f7f\u7528\u8005\uff0c\u53ef\u80fd\u662fB\u7aef\u7684\u5546\u5bb6\uff0c\u53ef\u80fd\u662f\u5e73\u53f0\u81ea\u5df1\u7684\u8fd0\u8425\uff0c\u8bed\u4e49\u662f\u4e0d\u660e\u786e\u7684\u3002\u5728\u5546\u5bb6\u7ba1\u7406\u7684\u9650\u754c\u4e0a\u4e0b\u6587\uff0c\u7528\u6237\u5c31\u662f\u5546\u5bb6\uff0c\u542b\u4e49\u662f\u660e\u786e\u7684\u3002<\/font><br \/>\n\u6a21\u5757\uff08Module\uff09\u662fDDD\u4e2d\u660e\u786e\u63d0\u5230\u7684\u4e00\u79cd\u63a7\u5236\u9650\u754c\u4e0a\u4e0b\u6587\u7684\u624b\u6bb5\uff0c\u5728\u6211\u4eec\u7684\u5de5\u7a0b\u4e2d\uff0c\u4e00\u822c\u5c3d\u91cf\u7528\u4e00\u4e2a\u6a21\u5757\u6765\u8868\u793a\u4e00\u4e2a\u9886\u57df\u7684\u9650\u754c\u4e0a\u4e0b\u6587\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u901a\u7528\u8bed\u8a00-Ubiquitous Language(UL)<\/strong><br \/>\n\u53ef\u4ee5\u628a\u9650\u754c\u4e0a\u4e0b\u6587\u770b\u6210\u662f\u6574\u4e2a\u5e94\u7528\u7a0b\u5e8f\u4e4b\u5185\u7684\u4e00\u4e2a\u6982\u5ff5\u6027\u8fb9\u754c\u3002\u8fd9\u4e2a\u8fb9\u754c\u5185\u8fd8\u6709\u4e00\u4e2a\u5f88\u91cd\u8981\u7684\u6982\u5ff5\u53eb\u901a\u7528\u8bed\u8a00\uff0c\u9650\u754c\u4e0a\u4e0b\u6587\u4e2d\u7684\u6bcf\u79cd\u9886\u57df\u672f\u8bed\u3001\u8bcd\u7ec4\u3001\u6216\u8005\u53e5\u5b50\u90fd\u53eb\u505a\u901a\u7528\u8bed\u8a00\uff0c\u65e0\u8bba\u662f\u9886\u57df\u4e13\u5bb6\u548c\u5f00\u53d1\u4eba\u5458\u5728\u5bf9\u9886\u57df\u95ee\u9898\u7684\u6c9f\u901a\u3001\u9700\u6c42\u7684\u8ba8\u8bba\uff0c\u5f00\u53d1\u8ba1\u5212\u7684\u5236\u5b9a\u3001\u6982\u5ff5\u3001\u8fd8\u662f\u4ee3\u7801\u4e2d\u51fa\u73b0\u7684\u7c7b\u540d\u4e0e\u65b9\u6cd5\uff0c\u90fd\u5305\u62ec\u5176\u4e2d\uff0c\u800c\u4e14\u8981\u6ce8\u610f\u7684\u4e00\u4e2a\u89c4\u5219\u662f\uff1a<font color=red>\u53ea\u8981\u662f\u76f8\u540c\u7684\u610f\u601d\uff0c\u5c31\u5e94\u8be5\u4f7f\u7528\u76f8\u540c\u7684\u8bcd\u6c47\u3002<\/font>\u53ef\u4ee5\u770b\u51fa\uff0c\u8fd9\u79cd\u901a\u7528\u8bed\u8a00\u4e0d\u662f\u4e00\u4e0b\u5b50\u5c31\u53ef\u4ee5\u5f62\u6210\uff0c\u800c\u662f\u5728\u4e00\u4e2a\u5404\u65b9\u4eba\u5458\u7684\u8ba8\u8bba\u4e2d\uff0c\u4e0d\u65ad\u53d1\u73b0\u3001\u660e\u786e\u4e0e\u63d0\u70bc\u51fa\u6765\u7684\u3002\u5173\u4e8e\u9650\u754c\u4e0a\u4e0b\u6587\u4e2d\u7684\u672f\u8bed\u4e00\u5b9a\u8981\u51c6\u786e\u53cd\u6620\u901a\u7528\u8bed\u8a00\u7684\u95ee\u9898\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u5b9e\u4f53-Entity<\/strong><br \/>\n\u4e00\u4e2a\u7531\u5b83\u7684\u6807\u8bc6\u5b9a\u4e49\u7684\u5bf9\u8c61\u53eb\u505a\u5b9e\u4f53\u3002\u901a\u5e38\u5b9e\u4f53\u5177\u5907\u552f\u4e00ID\uff0c\u80fd\u591f\u88ab\u6301\u4e45\u5316\uff0c\u5177\u6709\u4e1a\u52a1\u903b\u8f91\uff0c\u5bf9\u5e94\u73b0\u5b9e\u4e16\u754c\u4e1a\u52a1\u5bf9\u8c61\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u503c\u5bf9\u8c61-Value Object<\/strong><br \/>\n\u4e00\u4e2a\u6ca1\u6709\u6982\u5ff5\u4e0a\u6807\u8bc6\u7b26\u63cf\u8ff0\u4e00\u4e2a\u9886\u57df\u65b9\u9762\u7684\u5bf9\u8c61\uff0c\u8fd9\u4e9b\u5bf9\u8c61\u662f\u7528\u6765\u8868\u793a\u4e34\u65f6\u7684\u4e8b\u7269\uff0c\u6216\u8005\u53ef\u4ee5\u8ba4\u4e3a\u503c\u5bf9\u8c61\u662f\u5b9e\u4f53\u7684\u5c5e\u6027\uff0c\u8fd9\u4e9b\u5c5e\u6027\u6ca1\u6709\u7279\u6027\u6807\u8bc6\u4f46\u540c\u65f6\u8868\u8fbe\u4e86\u9886\u57df\u4e2d\u67d0\u7c7b\u542b\u4e49\u7684\u6982\u5ff5\u3002\u901a\u5e38\u503c\u5bf9\u8c61\u4e0d\u5177\u6709\u552f\u4e00ID\uff0c\u7531\u5bf9\u8c61\u7684\u5c5e\u6027\u63cf\u8ff0\uff0c\u53ef\u4ee5\u7528\u6765\u4f20\u9012\u53c2\u6570\u6216\u5bf9\u5b9e\u4f53\u8fdb\u884c\u8865\u5145\u63cf\u8ff0\u3002<br \/>\n\u5f53\u4f60\u53ea\u5173\u5fc3\u67d0\u4e2a\u5bf9\u8c61\u7684\u5c5e\u6027\u65f6\uff0c\u8be5\u5bf9\u8c61\u4fbf\u53ef\u4f5c\u4e3a\u4e00\u4e2a\u503c\u5bf9\u8c61\u3002\u4e3a\u5176\u6dfb\u52a0\u6709\u610f\u4e49\u7684\u5c5e\u6027\uff0c\u5e76\u8d4b\u4e88\u5b83\u76f8\u5e94\u7684\u884c\u4e3a\u3002\u6211\u4eec\u9700\u8981\u5c06\u503c\u5bf9\u8c61\u770b\u6210\u4e0d\u53d8\u5bf9\u8c61\uff0c\u4e0d\u8981\u7ed9\u5b83\u4efb\u4f55\u8eab\u4efd\u6807\u8bc6\uff0c\u8fd8\u5e94\u8be5\u5c3d\u91cf\u907f\u514d\u50cf\u5b9e\u4f53\u5bf9\u8c61\u4e00\u6837\u7684\u590d\u6742\u6027\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u805a\u5408-Aggregate<\/strong><br \/>\n\u805a\u5408\u8868\u793a\u4e00\u7ec4\u9886\u57df\u5bf9\u8c61(\u5305\u62ec\u5b9e\u4f53\u548c\u503c\u5bf9\u8c61)\uff0c\u7528\u6765\u8868\u8ff0\u4e00\u4e2a\u5b8c\u6574\u7684\u9886\u57df\u6982\u5ff5\u3002\u800c\u6bcf\u4e2a\u805a\u5408\u90fd\u6709\u4e00\u4e2a\u6839\u5b9e\u4f53\uff0c\u8fd9\u4e2a\u6839\u5b9e\u4f53\u53c8\u53eb\u505a\u805a\u5408\u6839\u3002\u4e3e\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff0c\u4e00\u4e2a\u7535\u8111\u5305\u542b\u786c\u76d8\u3001CPU\u3001\u5185\u5b58\u6761\u7b49\uff0c\u8fd9\u4e00\u4e2a\u7ec4\u5408\u5c31\u662f\u4e00\u4e2a\u805a\u5408\uff0c\u800c\u7535\u8111\u5c31\u662f\u8fd9\u4e2a\u7ec4\u5408\u7684\u805a\u5408\u6839\u3002\u5728\u805a\u5408\u4e2d\uff0c\u6839\u662f\u552f\u4e00\u5141\u8bb8\u5916\u90e8\u5bf9\u8c61\u4fdd\u6301\u5bf9\u5b83\u7684\u5f15\u7528\u7684\u5143\u7d20\uff0c\u800c\u8fb9\u754c\u5185\u90e8\u7684\u5bf9\u8c61\u4e4b\u95f4\u5219\u53ef\u4ee5\u4e92\u76f8\u5f15\u7528\u3002\u9664\u6839\u4ee5\u5916\u7684\u5176\u4ed6Entity\u90fd\u6709\u672c\u5730\u8868\u793a\uff0c\u4f46\u8fd9\u4e9b\u6807\u8bc6\u53ea\u6709\u5728\u805a\u5408\u5185\u90e8\u624d\u9700\u8981\u52a0\u4ee5\u533a\u522b\uff0c\u56e0\u4e3a\u5916\u90e8\u5bf9\u8c61\u9664\u4e86\u6839Entity\u4e4b\u5916\u770b\u4e0d\u5230\u5176\u4ed6\u5bf9\u8c61\u3002<br \/>\n\u805a\u5408\u8868\u8fbe\u7684\u662f\u771f\u5b9e\u4e16\u754c\u4e2d\u6574\u4f53\u4e0e\u90e8\u5206\u7684\u5173\u7cfb\u3002\u5f53\u6574\u4f53\u4e0d\u5b58\u5728\u65f6\uff0c\u90e8\u5206\u5c31\u53d8\u5f97\u6ca1\u6709\u4e86\u610f\u4e49\u3002<br \/>\n<a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674577762256.png\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674577762256.png\" alt=\"file\" \/><\/a><\/p>\n<\/li>\n<li>\n<p><strong>\u805a\u5408\u6839-Aggregate Root<\/strong><br \/>\n\u805a\u5408\u6839(Aggreate Root, AR)\u662f\u4e00\u7ec4\u76f8\u5173\u5bf9\u8c61\u7684\u96c6\u5408\uff0c\u4f5c\u4e3a\u4e00\u4e2a\u6574\u4f53\u88ab\u5916\u754c\u8bbf\u95ee\uff0c\u805a\u5408\u6839\u5c31\u662f\u8fd9\u4e2a\u805a\u5408\u7684\u6839\u8282\u70b9\u3002\u5b83\u901a\u5e38\u662f\u8f6f\u4ef6\u6a21\u578b\u4e2d\u90a3\u4e9b\u6700\u91cd\u8981\u7684\u4ee5\u540d\u8bcd\u5f62\u5f0f\u5b58\u5728\u7684\u9886\u57df\u5bf9\u8c61\uff0c\u5bf9\u4e8e\u4e00\u4e2a\u4f1a\u5458\u7ba1\u7406\u7cfb\u7edf\uff0c\u4f1a\u5458(Member)\u4fbf\u662f\u4e00\u4e2a\u805a\u5408\u6839\uff1b\u5bf9\u4e8e\u62a5\u9500\u7cfb\u7edf\uff0c\u62a5\u9500\u5355(Expense)\u4fbf\u662f\u4e00\u4e2a\u805a\u5408\u6839\uff1b\u5bf9\u4e8e\u4fdd\u9669\u7cfb\u7edf\uff0c\u4fdd\u5355(Policy)\u4fbf\u662f\u4e00\u4e2a\u805a\u5408\u6839\u3002\u805a\u5408\u6839\u662f\u4e3b\u8981\u7684\u4e1a\u52a1\u903b\u8f91\u8f7d\u4f53\uff0cDDD\u4e2d\u6240\u6709\u7684\u6218\u672f\u5b9e\u73b0\u90fd\u56f4\u7ed5\u7740\u805a\u5408\u6839\u5c55\u5f00\u3002<br \/>\n<font color=red>\u7b80\u5355\u7684\u7406\u89e3\uff1a\u805a\u5408\u6839\u5c31\u662f\u628a\u5173\u8054\u7d27\u5bc6\u7684\u5b9e\u4f53\u653e\u5230\u4e00\u8d77\uff0c\u5bf9\u5916\u63d0\u4f9b\u7edf\u4e00\u7684\u8bbf\u95ee\uff0c\u5916\u754c\u4e0d\u80fd\u76f4\u63a5\u8bbf\u95ee\u5185\u90e8\u7684\u5b9e\u4f53\u3002<\/font><\/p>\n<\/li>\n<li>\n<p>\u805a\u5408\u6839\u4e0e\u805a\u5408\u6839\u4e4b\u95f4\u7684\u901a\u4fe1<br \/>\n1\uff09\u5982\u679c\u662f\u7ecf\u5178\u7684DDD\u8bbe\u8ba1\uff0c\u90a3\u4e48\u5e94\u8be5\u8ba9\u9886\u57df\u670d\u52a1\u6765\u5b8c\u6210\u591a\u4e2a\u805a\u5408\u6839\u4e4b\u95f4\u7684\u901a\u4fe1\uff0c\u9886\u57df\u670d\u52a1\u77e5\u9053\u8be5\u5982\u4f55\u4ee5\u9762\u5411\u8fc7\u7a0b\u7684\u65b9\u5f0f\u5148\u8c03\u7528\u7b2c\u4e00\u4e2a\u805a\u5408\u6839\u505a\u4e8b\u60c5\uff0c\u7136\u540e\u518d\u8c03\u7528\u7b2c\u4e8c\u4e2a\u805a\u5408\u6839\u505a\u4e8b\u60c5\uff0c\u4ee5\u6b64\u7c7b\u63a8\u3002\u8fd9\u79cd\u65b9\u6cd5\u5b9e\u9645\u4e0a\u662f\u4e00\u4e2a\u9762\u5411\u8fc7\u7a0b\u7684\u601d\u7ef4\uff0c\u5bf9\u8c61\u5b9e\u9645\u4e0a\u5df2\u7ecf\u6ca6\u843d\u4e3a\u88ab\u64cd\u7eb5\u7684\u6570\u636e\u4e86\uff1b\u8fd9\u79cd\u65b9\u5f0f\u53ef\u4ee5\u4f7f\u7528\u4e1a\u52a1\u4ee5\u7f16\u6392\u7684\u65b9\u5f0f\u6267\u884c(LiteFlow)\u3002<br \/>\n2\uff09\u53ef\u4ee5\u901a\u8fc7\u9886\u57df\u4e8b\u4ef6\u5b9e\u73b0\uff08\u4e8b\u4ef6\u76d1\u542c\uff09\u3002\u4f8b\u5982\uff1a\u6d88\u606f\u3001<\/p>\n<\/li>\n<li>\n<p><strong>\u6a21\u5757-Modules<\/strong><br \/>\n\u5bf9\u4e8e\u4e00\u4e2a\u590d\u6742\u7684\u5e94\u7528\u6765\u8bf4\uff0c\u9886\u57df\u6a21\u578b\u5c06\u4f1a\u53d8\u7684\u8d8a\u6765\u8d8a\u5927\uff0c\u4ee5\u81f3\u4e8e\u5f88\u96be\u53bb\u63cf\u8ff0\u548c\u7406\u89e3\uff0c\u66f4\u522b\u63d0\u6a21\u578b\u4e4b\u95f4\u7684\u5173\u7cfb\u4e86\u3002\u6a21\u5757\u7684\u51fa\u73b0\uff0c\u5c31\u662f\u4e3a\u4e86\u7ec4\u7ec7\u7edf\u4e00\u7684\u6a21\u578b\u6982\u5ff5\u6765\u8fbe\u5230\u51cf\u5c11\u590d\u6742\u6027\u7684\u76ee\u7684\u3002<font color=red>\u6a21\u5757\u5e94\u8be5\u5305\u542b\u4e00\u7ec4\u5177\u6709\u9ad8\u5185\u805a\u6027\u7684\u6982\u5ff5\u96c6\u5408\u3002\u8fd9\u6837\u505a\u7684\u597d\u5904\u662f\u53ef\u4ee5\u5728\u4e0d\u540c\u7684\u6a21\u5757\u4e4b\u95f4\u5b9e\u73b0\u677e\u8026\u5408,\u4ece\u800c\u63d0\u9ad8\u4ee3\u7801\u8d28\u91cf\u548c\u53ef\u7ef4\u62a4\u6027\u3002\u5426\u5219\uff0c\u6211\u4eec\u5e94\u8be5\u4fee\u6539\u6a21\u578b\u4ee5\u91cd\u65b0\u5212\u5206\u8fd9\u4e9b\u6982\u5ff5\u3002\u7531\u4e8e\u6a21\u5757\u540d\u662fUL\u7684\u4e00\u90e8\u5206\uff0c\u6a21\u5757\u540d\u5e94\u8be5\u53cd\u6620\u51fa\u5b83\u4eec\u5728\u9886\u57df\u4e2d\u7684\u6982\u5ff5\u3002[Evans]<\/font><br \/>\n\u6a21\u5757\u5e94\u5f53\u6709\u5bf9\u5916\u7684\u7edf\u4e00\u63a5\u53e3\u4f9b\u5176\u4ed6\u6a21\u5757\u8c03\u7528\uff0c\u6bd4\u5982\u6709\u4e09\u4e2a\u5bf9\u8c61\u5728\u6a21\u5757a\u4e2d\uff0c\u90a3\u4e48\u6a21\u5757b\u4e0d\u5e94\u8be5\u76f4\u63a5\u64cd\u4f5c\u8fd9\u4e09\u4e2a\u5bf9\u8c61\uff0c\u800c\u662f\u64cd\u4f5c\u66b4\u9732\u7684\u63a5\u53e3\u3002\u6a21\u5757\u7684\u547d\u540d\u4e5f\u5f88\u6709\u8bb2\u7a76\uff0c\u6700\u597d\u80fd\u591f\u6df1\u5c42\u6b21\u53cd\u6620\u9886\u57df\u6a21\u578b\u3002<br \/>\n\u6a21\u5757\u5728\u6280\u672f\u4e0a\u53ef\u4ee5\u5bf9\u5e94Java\u4e2d\u7684Package\u3002\u5728DDD\u4e2d\uff0c\u6a21\u5757\u8868\u793a\u4e86\u4e00\u4e2a\u547d\u540d\u7684\u5bb9\u5668\uff0c\u7528\u4e8e\u5b58\u653e\u9886\u57df\u4e2d\u5185\u805a\u5728\u4e00\u8d77\u7684\u7c7b\u3002<br \/>\n\u6a21\u5757\u7684\u8bbe\u8ba1\u662f\u57fa\u4e8e\u9886\u57df\u6a21\u578b\u7684\uff0c\u8981\u7b26\u5408\u901a\u7528\u8bed\u8a00\u7684\u8868\u8ff0\u3002\u5176\u6b21\uff0c\u6a21\u5757\u7684\u8bbe\u8ba1\u8981\u7b26\u5408<font color=red>\u9ad8\u5185\u805a\u4f4e\u8026\u5408<\/font>\u7684\u8bbe\u8ba1\u601d\u60f3\u3002<\/p>\n<\/li>\n<li>\n<p>\u6a21\u5757\u548c\u9650\u754c\u4e0a\u4e0b\u6587\u7684\u5173\u7cfb<br \/>\n<font color=red>\u6a21\u5757\u4e0e\u5b50\u57df\u548c\u9650\u754c\u4e0a\u4e0b\u6587\u5e76\u4e0d\u662f\u4e00\u81f4\u7684\u6982\u5ff5\uff0c\u6a21\u5757\u4e5f\u662f\u4e00\u79cd\u72ec\u7acb\u7684\u5efa\u6a21\u65b9\u6cd5\u3002<\/font>\u5bf9\u4e8e\u4f55\u65f6\u5e94\u8be5\u5bf9\u9886\u57df\u6a21\u578b\u8fdb\u884c\u5206\u79bb\uff0c\u4f55\u65f6\u5c06\u9886\u57df\u6a21\u578b\u5efa\u6a21\u6210\u4e00\u4e2a\u6574\u4f53\uff0c\u5e94\u8be5\u4ed4\u7ec6\u5730\u601d\u8003\u4e0e\u5bf9\u5f85\u3002\u6709\u65f6\u901a\u7528\u8bed\u8a00\u53ef\u4ee5\u5f88\u597d\u5730\u5e2e\u52a9\u6211\u4eec\u505a\u51fa\u6b63\u786e\u7684\u9009\u62e9\u3002\u4f46\u662f\u53e6\u5916\u7684\u65f6\u5019\uff0c\u5176\u4e2d\u7684\u672f\u8bed\u5c06\u53d8\u5f97\u975e\u5e38\u542b\u7cca\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b,\u6211\u4eec\u5e76\u4e0d\u6e05\u695a\u5982\u4f55\u5212\u5206\u4e0a\u4e0b\u6587\u8fb9\u754c\u3002\u6b64\u65f6,\u6211\u4eec\u53ef\u4ee5\u9996\u5148\u5c06\u5b83\u4eec\u653e\u5728\u4e00\u8d77\uff0c\u4f7f\u7528\u6a21\u5757\u6765\u5bf9\u6a21\u578b\u8fdb\u884c\u5212\u5206\uff0c\u5e76\u4e0d\u662f\u9650\u754c\u4e0a\u4e0b\u6587\u3002\u4f46\u662f\uff0c\u8fd9\u5e76\u4e0d\u610f\u5473\u7740\u6211\u4eec\u5c31\u5e94\u8be5\u9650\u5236\u5bf9\u9650\u754c\u4e0a\u4e0b\u6587\u7684\u521b\u5efa\u3002\u6211\u4eec\u5e94\u8be5\u901a\u8fc7\u901a\u7528\u8bed\u8a00\u7684\u9700\u6c42\u6765\u5212\u5206\u6a21\u578b\u8fb9\u754c\u3002\u4f46\u9650\u754c\u4e0a\u4e0b\u6587\u4e0d\u662f\u7528\u6765\u4ee3\u66ff\u6a21\u5757\u7684\u3002<font color=red>\u4f7f\u7528\u6478\u5757\u7684\u76ee\u7684\u5728\u4e8e\u7ec4\u7ec7\u90a3\u4e9b\u5185\u805a\u5728\u4e00\u8d77\u7684\u9886\u57df\u5bf9\u8c61\uff0c\u5bf9\u4e8e\u90a3\u4e9b\u5185\u805a\u6027\u4e0d\u5f3a\u6216\u8005\u6ca1\u6709\u5185\u805a\u6027\u7684\u9886\u57df\u5bf9\u8c61\u6765\u8bf4,\u6211\u4eec\u5e94\u8be5\u5c06\u5b83\u4eec\u5212\u5206\u5728\u4e0d\u540c\u7684\u6a21\u5757\u4e2d\u3002<\/font><\/p>\n<\/li>\n<li>\n<p><strong>\u9886\u57df\u670d\u52a1-Domain Services<\/strong><br \/>\n\u6709\u65f6\uff0c\u5b83\u4e0d\u89c1\u5f97\u662f\u4e00\u4ef6\u4e1c\u897f\u2026\u2026\u5f53\u9886\u57df\u4e2d\u7684\u67d0\u4e2a\u64cd\u4f5c\u8fc7\u7a0b\u6216\u8f6c\u6362\u8fc7\u7a0b\u4e0d\u662f\u5b9e\u4f53\u6216\u503c\u5bf9\u8c61\u7684\u804c\u8d23\u65f6\uff0c\u6b64\u65f6\u6211\u4eec\u4fbf\u5e94\u8be5\u5c06\u8be5\u64cd\u4f5c\u653e\u5728\u4e00\u4e2a\u5355\u72ec\u7684\u63a5\u53e3\u4e2d\uff0c\u5373\u9886\u57df\u670d\u52a1\u3002\u8bf7\u786e\u4fdd\u8be5\u9886\u57df\u670d\u52a1\u548c\u901a\u7528\u8bed\u8a00\u662f\u4e00\u81f4\u7684\uff1b\u5e76\u4e14\u4fdd\u8bc1\u5b83\u662f\u65e0\u72b6\u6001\u7684\u3002[Evans, pp. 104,106]<br \/>\n\u90a3\u4e48\u5728\u4ec0\u4e48\u60c5\u51b5\u4e0b\uff0c\u67d0\u4e2a\u64cd\u4f5c\u4e0d\u5c5e\u4e8e\u5b9e\u4f53\u6216\u8005\u503c\u5bf9\u8c61\u5462\uff1f\u4e66\u4e2d\u7f57\u5217\u4e86\u4ee5\u4e0b\u51e0\u70b9\uff1a<br \/>\n1\uff09\u6267\u884c\u4e00\u4e2a\u663e\u8457\u7684\u4e1a\u52a1\u64cd\u4f5c\u8fc7\u7a0b\u3002<br \/>\n2\uff09\u5bf9\u9886\u57df\u5bf9\u8c61\u8fdb\u884c\u8f6c\u6362\u3002<br \/>\n3\uff09\u4ee5\u591a\u4e2a\u9886\u57df\u5bf9\u8c61\u4f5c\u4e3a\u8f93\u5165\u8fdb\u884c\u8ba1\u7b97\uff0c\u7ed3\u679c\u4ea7\u751f\u4e00\u4e2a\u503c\u5bf9\u8c61\u3002<br \/>\n\u5bf9\u4e8e\u6700\u540e\u4e00\u70b9\u4e2d\u7684\u8ba1\u7b97\u8fc7\u7a0b\uff0c\u5b83\u5e94\u8be5\u5177\u6709\u201c\u663e\u8457\u7684\u4e1a\u52a1\u64cd\u4f5c\u8fc7\u7a0b&quot;\u7684\u7279\u70b9\u3002\u8fd9\u4e5f\u662f\u9886\u57df\u670d\u52a1\u5f88\u5e38\u89c1\u7684\u5e94\u7528\u573a\u666f\uff0c\u5b83\u53ef\u80fd\u9700\u8981\u591a\u4e2a\u805a\u5408\u4f5c\u4e3a\u8f93\u4eba\u3002 \u5f53\u4e00\u4e2a\u65b9\u6cd5\u4e0d\u4fbf\u653e\u5728\u5b9e\u4f53\u6216\u503c\u5bf9\u8c61\u4e0a\u65f6,\u4f7f\u7528\u9886\u57df\u670d\u52a1\u4fbf\u662f\u6700\u4f73\u7684\u89e3\u51b3\u65b9\u6cd5\u3002\u9700\u8981\u786e\u4fdd\u9886\u57df\u670d\u52a1\u662f\u65e0\u72b6\u6001\u7684\uff0c\u5e76\u4e14\u80fd\u591f\u660e\u786e\u5730\u8868\u8fbe\u9650\u754c\u4e0a\u4e0b\u6587\u4e2d\u7684\u901a\u7528\u8bed\u8a00\u3002<br \/>\n<font color=red>\u4e0d\u8fc7\u53ea\u8981\u5728\u771f\u6b63\u5fc5\u8981\u662f\u624d\u5e94\u8be5\u4f7f\u7528\u9886\u57df\u670d\u52a1\uff0c\u8fc7\u5ea6\u4f7f\u7528\u9886\u57df\u670d\u52a1\u5c06\u4f1a\u5bfc\u81f4\u8d2b\u8840\u9886\u57df\u6a21\u578b\uff0c\u6240\u6709\u4e1a\u52a1\u90fd\u4f4d\u4e8e\u9886\u57df\u670d\u52a1\u4e2d\uff0c\u800c\u4e0d\u662f\u5b9e\u4f53\u548c\u503c\u5bf9\u8c61\u4e2d\u4e86\u3002<\/font><\/p>\n<\/li>\n<li>\n<p><strong>\u9886\u57df\u4e8b\u4ef6-Domain Events<\/strong><br \/>\n\u662f\u5c06\u9886\u57df\u5bf9\u8c61\u4ece\u5bf9repository\u6216service\u7684\u4f9d\u8d56\u4e2d\u89e3\u8131\u51fa\u6765\uff0c\u907f\u514d\u8ba9\u9886\u57df\u5bf9\u8c61\u5bf9\u8fd9\u4e9b\u8bbe\u65bd\u4ea7\u751f\u76f4\u63a5\u4f9d\u8d56\u3002\u9886\u57df\u4e8b\u4ef6\u7684\u89e6\u53d1\u70b9\u5728\u9886\u57df\u6a21\u578b(domain model)\u4e2d\u3002\u5c31\u662f\u5f53\u9886\u57df\u5bf9\u8c61\u7684\u4e1a\u52a1\u65b9\u6cd5\u9700\u8981\u4f9d\u8d56\u5230\u8fd9\u4e9b\u5bf9\u8c61\u65f6\u5c31\u53d1\u51fa\u4e00\u4e2a\u4e8b\u4ef6\uff0c\u8fd9\u4e2a\u4e8b\u4ef6\u4f1a\u88ab\u76f8\u5e94\u7684\u5bf9\u8c61\u76d1\u542c\u5230\u5e76\u505a\u51fa\u5904\u7406\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u5e94\u7528\u670d\u52a1-Application Service<\/strong><br \/>\n\u5728DDD\u8bbe\u8ba1\u601d\u60f3\u4e2d\uff0c\u5e94\u7528\u5c42\u4e3b\u8981\u804c\u8d23\u4e3a\u7ec4\u88c5\u9886\u57df\u5c42\u5404\u4e2a\u7ec4\u4ef6\u53ca\u57fa\u7840\u8bbe\u65bd\u5c42\u7684\u516c\u5171\u7ec4\u4ef6\uff0c\u5b8c\u6210\u5177\u4f53\u7684\u4e1a\u52a1\u670d\u52a1\u3002\u5e94\u7528\u5c42\u53ef\u4ee5\u7406\u89e3\u4e3a\u7c98\u5408\u5404\u4e2a\u7ec4\u4ef6\u7684\u80f6\u6c34\uff0c\u4f7f\u5f97\u96f6\u6563\u7684\u7ec4\u4ef6\u7ec4\u5408\u5728\u4e00\u8d77\u63d0\u4f9b\u5b8c\u6574\u7684\u4e1a\u52a1\u670d\u52a1\u3002\u5728\u590d\u6742\u7684\u4e1a\u52a1\u573a\u666f\u4e0b\uff0c\u4e00\u4e2a\u4e1a\u52a1case\u901a\u5e38\u9700\u8981\u591a\u4e2adomain\u5b9e\u4f53\u53c2\u4e0e\u8fdb\u6765\uff0c\u6240\u4ee5Application\u7684\u7c98\u5408\u6548\u7528\u6b63\u597d\u6709\u4e86\u7528\u6b66\u4e4b\u5730\u3002<br \/>\n\u5728\u5e94\u7528\u670d\u52a1\u4e2d\uff0c\u6211\u4eec\u5e76\u4e0d\u4f1a\u5904\u7406\u4e1a\u52a1\u903b\u8f91\uff0c\u4f46\u662f\u9886\u57df\u670d\u52a1\u5374\u62fe\u6070\u662f\u5904\u7406\u4e1a\u52a1\u903b\u8f91\u7684\u3002\u7b80\u5355\u6765\u8bb2\uff0c\u5e94\u7528\u670d\u52a1\u662f\u9886\u57df\u6a21\u578b\u5f88\u81ea\u7136\u7684\u5ba2\u6237\u65b9\uff0c\u8fdb\u800c\u4e5f\u662f\u9886\u57df\u670d\u52a1\u7684\u5ba2\u6237\u65b9\u3002<br \/>\n\u5e94\u7528\u670d\u52a1\u4f5c\u4e3a\u603b\u4f53\u534f\u8c03\u8005\uff0c\u5148\u901a\u8fc7\u8d44\u6e90\u5e93\u83b7\u53d6\u5230\u805a\u5408\u6839\uff0c\u7136\u540e\u8c03\u7528\u805a\u5408\u6839\u4e2d\u7684\u4e1a\u52a1\u65b9\u6cd5\uff0c\u6700\u540e\u518d\u6b21\u8c03\u7528\u8d44\u6e90\u5e93\u4fdd\u5b58\u805a\u5408\u6839\u3002\u6d41\u7a0b\u793a\u610f\u56fe\u5982\u4e0b\uff1a<br \/>\n<a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674438484338.png\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674438484338.png\" alt=\"file\" \/><\/a><\/p>\n<\/li>\n<li>\n<p><strong>\u9632\u8150\u5c42-Anti-corruption layer(ACL)<\/strong><br \/>\n\u9632\u8150\u5c42\u5c31\u662f\u4e00\u4e2a\u4e0a\u4e0b\u6587\u901a\u8fc7\u4e00\u4e9b\u9002\u914d\u548c\u8f6c\u6362\u4e0e\u53e6\u4e00\u4e2a\u4e0a\u4e0b\u6587\u4ea4\u4e92\u3002\u5b83\u7684\u4f5c\u7528\u4e3b\u8981\u6709\uff1a<br \/>\n1\uff09\u5728\u67b6\u6784\u5c42\u9762\uff0c\u901a\u8fc7\u5f15\u5165\u9632\u8150\u5c42\u6709\u6548\u9694\u79bb\u9650\u754c\u4e0a\u4e0b\u6587\u4e4b\u95f4\u7684\u8026\u5408\u3002<br \/>\n2\uff09\u9632\u8150\u5c42\u540c\u65f6\u8fd8\u53ef\u4ee5\u626e\u6f14\u9002\u914d\u5668\u3001\u8c03\u505c\u8005\u3001\u5916\u89c2\uff08Facade\uff09\u7b49\u89d2\u8272\u3002<br \/>\n3\uff09\u9632\u8150\u5c42\u5f80\u5f80\u5c5e\u4e8e\u4e0b\u6e38\u9650\u754c\u4e0a\u4e0b\u6587\uff0c\u7528\u4ee5\u9694\u7edd\u4e0a\u6e38\u9650\u754c\u4e0a\u4e0b\u6587\u53ef\u80fd\u53d1\u751f\u7684\u53d8\u5316\u3002<br \/>\n<a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674571791832.png\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674571791832.png\" alt=\"file\" \/><\/a><br \/>\n\u9632\u8150\u5c42\u662f\u4e00\u79cd\u5728\u4e0d\u540c\u5e94\u7528\u95f4\u8f6c\u6362\u7684\u673a\u5236\u3002\u521b\u5efa\u4e00\u4e2a\u9632\u8150\u5c42\uff0c\u4ee5\u6839\u636e\u5ba2\u6237\u7aef\u81ea\u5df1\u7684\u9886\u57df\u6a21\u578b\u4e3a\u5ba2\u6237\u63d0\u4f9b\u529f\u80fd\u3002\u8be5\u5c42\u901a\u8fc7\u5176\u73b0\u6709\u63a5\u53e3\u4e0e\u53e6\u4e00\u4e2a\u7cfb\u7edf\u8fdb\u884c\u901a\u4fe1\uff0c\u51e0\u4e4e\u4e0d\u9700\u8981\u5bf9\u5176\u8fdb\u884c\u4efb\u4f55\u4fee\u6539\u3002\u5728\u4e0d\u5171\u4eab\u76f8\u540c\u9886\u57df\u6a21\u578b\u7684\u4e0d\u540c\u5b50\u7cfb\u7edf\u4e4b\u95f4\u5b9e\u65bd\u9632\u8150\u5c42\uff08\u6216\u5916\u89c2\u6216\u9002\u914d\u5668\u5c42\uff09\uff0c\u6b64\u5c42\u8f6c\u6362\u4e00\u4e2a\u5b50\u7cfb\u7edf\u5411\u53e6\u4e00\u4e2a\u5b50\u7cfb\u7edf\u53d1\u51fa\u7684\u8bf7\u6c42\u3002 \u4f7f\u7528\u9632\u8150\u5c42\uff08Anti-corruption layer\uff09\u6a21\u5f0f\u53ef\u786e\u4fdd\u5e94\u7528\u7a0b\u5e8f\u7684\u8bbe\u8ba1\u4e0d\u53d7\u9650\u4e8e\u5bf9\u5916\u90e8\u5b50\u7cfb\u7edf\u7684\u4f9d\u8d56\u3002\u56e0\u6b64\uff0c<strong><font color=red>\u9632\u8150\u5c42\u9694\u79bb\u4e0d\u4ec5\u662f\u4e3a\u4e86\u4fdd\u62a4\u81ea\u8eab\u9886\u57df\u6a21\u578b\u514d\u53d7\u5176\u4ed6\u9886\u57df\u6a21\u578b\u7684\u4ee3\u7801\u7684\u4fb5\u5bb3\uff0c\u8fd8\u5728\u4e8e\u5206\u79bb\u4e0d\u540c\u7684\u57df\u5e76\u786e\u4fdd\u5b83\u4eec\u5728\u5c06\u6765\u4fdd\u6301\u5206\u79bb\u3002<\/font><\/strong><\/p>\n<\/li>\n<li>\n<p>\u5de5\u5382-Factory<br \/>\n\u4e00\u4e2a\u5bf9\u8c61\u7684\u521b\u5efa\u53ef\u80fd\u662f\u5b83\u81ea\u8eab\u7684\u4e3b\u8981\u64cd\u4f5c\uff0c\u4f46\u662f\u590d\u6742\u7684\u7ec4\u88c5\u64cd\u4f5c\u4e0d\u5e94\u8be5\u6210\u4e3a\u88ab\u521b\u5efa\u5bf9\u8c61\u7684\u804c\u8d23\u3002\u7ec4\u5408\u8fd9\u6837\u7684\u804c\u8d23\u4f1a\u4ea7\u751f\u7b28\u62d9\u7684\u8bbe\u8ba1\uff0c \u4e5f\u5f88\u96be\u8ba9\u4eba\u7406\u89e3\u3002\u56e0\u6b64\uff0c\u6709\u5fc5\u8981\u5f15\u5165\u4e00\u4e2a\u65b0\u7684\u6982\u5ff5\uff0c\u8fd9\u4e2a\u6982\u5ff5\u53ef\u4ee5\u5e2e\u52a9\u5c01\u88c5\u590d\u6742\u7684\u5bf9\u8c61\u521b\u5efa\u8fc7\u7a0b\uff0c\u5b83\u5c31\u662f\u5de5\u5382(Factory)\u3002\u5de5\u5382\u7528\u6765\u5c01\u88c5\u5bf9\u8c61\u521b\u5efa\u6240\u5fc5\u9700\u7684\u77e5\u8bc6\uff0c\u5b83\u4eec\u5bf9\u521b\u5efa\u805a\u5408\u7279\u522b\u6709\u7528\u3002\u5f53\u805a\u5408\u7684\u6839\u5efa\u7acb\u65f6\uff0c\u6240\u6709\u805a\u5408\u5305\u542b\u7684\u5bf9\u8c61\u5c06\u968f\u4e4b\u5efa\u7acb\u3002<br \/>\n\u5de5\u5382\u7528\u6765\u5c01\u88c5\u521b\u5efa\u4e00\u4e2a\u590d\u6742\u5bf9\u8c61\uff0c\u5c24\u5176\u662f\u805a\u5408\u65f6\u6240\u9700\u7684\u77e5\u8bc6\uff0c\u662f\u5c06\u521b\u5efa\u5bf9\u8c61\u7684\u7ec6\u8282\u9690\u85cf\u8d77\u6765\u3002\u5982\u5ba2\u6237\u4f20\u9012\u7ed9\u5de5\u5382\u4e00\u4e9b\u7b80\u5355\u7684\u53c2\u6570\uff0c\u7136\u540e\u5de5\u5382\u53ef\u4ee5\u5728\u5185\u90e8\u521b\u5efa\u4e00\u4e2a\u590d\u6742\u7684\u9886\u57df\u5bf9\u8c61\uff0c\u7136\u540e\u8fd4\u56de\u7ed9\u5ba2\u6237\u3002<br \/>\n<a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674577943698.png\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674577943698.png\" alt=\"file\" \/><\/a><\/p>\n<\/li>\n<li>\n<p><strong>\u8d44\u6e90\u5e93-Repository<\/strong><br \/>\n\u662f\u7528\u6765\u7ba1\u7406\u5b9e\u4f53\u7684\u96c6\u5408\uff0c\u4ed3\u50a8\u91cc\u9762\u5b58\u653e\u7684\u5bf9\u8c61\u4e00\u5b9a\u662f\u805a\u5408\uff0c\u539f\u56e0\u662fdomain\u662f\u4ee5\u805a\u5408\u7684\u6982\u5ff5\u6765\u5212\u5206\u8fb9\u754c\u7684\uff1b\u805a\u5408\u4f5c\u4e3a\u4e00\u4e2a\u6574\u4f53\u6982\u5ff5\uff0c\u8981\u4e48\u4e00\u8d77\u88ab\u53d6\u51fa\u6765\uff0c\u8981\u4e48\u4e00\u8d77\u88ab\u5220\u9664\u3002\u5916\u90e8\u8bbf\u95ee\u4e0d\u4f1a\u5355\u72ec\u5bf9\u67d0\u4e2a\u805a\u5408\u5185\u7684\u5b50\u5bf9\u8c61\u8fdb\u884c\u5355\u72ec\u64cd\u4f5c\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u53ea\u5bf9\u805a\u5408\u8bbe\u8ba1\u4ed3\u50a8\u3002<br \/>\n\u8d44\u6e90\u5e93\u7684\u662f\u5c01\u88c5\u6240\u6709\u83b7\u53d6\u5bf9\u8c61\u5f15\u7528\u6240\u9700\u7684\u903b\u8f91\u3002\u9886\u57df\u5bf9\u8c61\u4e0d\u9700\u5904\u7406\u57fa\u7840\u8bbe\u65bd\uff0c\u4ee5\u5f97\u5230\u9886\u57df\u4e2d\u5bf9\u5176\u4ed6\u5bf9\u8c61\u7684\u6240\u9700\u7684\u5f15\u7528\u3002\u53ea\u9700\u4ece\u8d44\u6e90\u5e93\u4e2d\u83b7\u53d6\u5b83\u4eec\uff0c\u4e8e\u662f\u6a21\u578b\u91cd\u83b7\u5b83\u5e94\u6709\u7684\u6e05\u6670\u548c\u7126\u70b9\u3002<br \/>\n\u8d44\u6e90\u5e93\u4f1a\u4fdd\u5b58\u5bf9\u67d0\u4e9b\u5bf9\u8c61\u7684\u5f15\u7528\u3002\u5f53\u4e00\u4e2a\u5bf9\u8c61\u88ab\u521b\u5efa\u51fa\u6765\u65f6\uff0c\u5b83\u53ef\u4ee5\u88ab\u4fdd\u5b58\u5230\u8d44\u6e90\u5e93\u4e2d\uff0c\u7136\u540e\u4ee5\u540e\u4f7f\u7528\u65f6\u53ef\u4ece\u8d44\u6e90\u5e93\u4e2d\u68c0\u7d22\u5230\u3002\u5982\u679c\u5ba2\u6237\u7a0b\u5e8f\u4ece\u8d44\u6e90\u5e93\u4e2d\u8bf7\u6c42\u4e00\u4e2a\u5bf9\u8c61\uff0c\u800c\u8d44\u6e90\u5e93\u4e2d\u5e76\u6ca1\u6709\u5b83\uff0c\u5c31\u4f1a\u4ece\u5b58\u50a8\u4ecb\u8d28\u4e2d\u83b7\u53d6\u5b83\u3002\u6362\u79cd\u8bf4\u6cd5\u662f\uff0c\u8d44\u6e90\u5e93\u4f5c\u4e3a\u4e00\u4e2a\u5168\u5c40\u7684\u53ef\u8bbf\u95ee\u5bf9\u8c61\u7684\u5b58\u50a8\u70b9\u800c\u5b58\u5728\u3002<br \/>\nRepository\u7684\u63a5\u53e3\u5e94\u5f53\u91c7\u7528\u9886\u57df\u901a\u7528\u8bed\u8a00\u3002\u4f5c\u4e3a\u5ba2\u6237\u7aef\uff0c\u4e0d\u5e94\u5f53\u77e5\u9053\u6570\u636e\u5e93\u5b9e\u73b0\u7684\u7ec6\u8282\u3002<br \/>\nRepository\u548cDAO\u7684\u4f5c\u7528\u7c7b\u4f3c\uff0c\u4e8c\u8005\u7684\u4e3b\u8981\u533a\u522b\uff1a<\/p>\n<ol>\n<li>DAO\u662f\u6bd4Repository\u66f4\u4f4e\u7684\u4e00\u5c42\uff0c\u5305\u542b\u4e86\u5982\u4f55\u4ece\u6570\u636e\u5e93\u4e2d\u63d0\u53d6\u6570\u636e\u7684\u4ee3\u7801\u3002<\/li>\n<li>Repository\u4ee5\u201c\u9886\u57df\u201d\u4e3a\u4e2d\u5fc3\uff0c\u6240\u63cf\u8ff0\u7684\u662f\u201c\u9886\u57df\u8bed\u8a00\u201d\u3002Repository\u628aORM\u6846\u67b6\u4e0e\u9886\u57df\u6a21\u578b\u9694\u79bb\uff0c\u5bf9\u5916\u9690\u85cf\u5c01\u88c5\u4e86\u6570\u636e\u8bbf\u95ee\u673a\u5236\u3002<br \/>\n<a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674578162232.png\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674578162232.png\" alt=\"file\" \/><\/a><\/li>\n<\/ol>\n<\/li>\n<li>\n<p><strong>Assembler[\u0259\u02c8sembl\u0259r]-\u88c5\u914d<\/strong><br \/>\n\u5b9e\u73b0 DTO \u4e0e\u9886\u57df\u5bf9\u8c61\u4e4b\u95f4\u7684\u76f8\u4e92\u8f6c\u6362\u548c\u6570\u636e\u4ea4\u6362\u3002\u4e00\u822c\u6765\u8bf4 Assembler \u4e0e DTO \u603b\u662f\u4e00\u540c\u51fa\u73b0\u3002<\/p>\n<\/li>\n<li>\n<p><strong>Facade [f\u0259\u02c8s\u0251d]-\u5916\u89c2<\/strong><br \/>\n\u63d0\u4f9b\u8f83\u7c97\u7c92\u5ea6\u7684\u8c03\u7528\u63a5\u53e3\uff0c\u5c06\u7528\u6237\u8bf7\u6c42\u59d4\u6258\u7ed9\u4e00\u4e2a\u6216\u591a\u4e2a\u5e94\u7528\u670d\u52a1\u8fdb\u884c\u5904\u7406\u3002<\/p>\n<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"25_%E6%9E%B6%E6%9E%84%E4%B8%AD%E7%9A%84%E6%80%9D%E6%83%B3%E4%B8%8E%E6%96%B9%E6%B3%95\"><\/span>2.5. \u67b6\u6784\u4e2d\u7684\u601d\u60f3\u4e0e\u65b9\u6cd5<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">\u540d\u79f0<\/th>\n<th style=\"text-align: left;\">\u5177\u4f53\u5185\u5bb9<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\">\u805a\u5408\u7684\u7ba1\u7406<\/td>\n<td style=\"text-align: left;\">\u805a\u5408\u6839\u3001\u5b9e\u4f53\u548c\u5bf9\u8c61\u7684\u5173\u7cfb<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\">\u805a\u5408\u6570\u636e\u7684\u521d\u59cb\u5316\u4e0e\u6301\u4e45\u5316<\/td>\n<td style=\"text-align: left;\">\u5de5\u5382\u548c\u4ed3\u50a8\u6a21\u5f0f<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\">\u805a\u5408\u7684\u89e3\u8026<\/td>\n<td style=\"text-align: left;\">\u805a\u5408\u4ee3\u7801\u7684\u89e3\u8026\u3001\u8de8\u805a\u5408\u7684\u670d\u52a1\u8c03\u7528\u548c\u89e3\u8026<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\">\u9886\u57df\u4e8b\u4ef6\u7ba1\u7406<\/td>\n<td style=\"text-align: left;\">\u9886\u57df\u4e8b\u4ef6\u5b9e\u4f53\u7ed3\u6784\u3001\u6301\u4e45\u5316\u548c\u4e8b\u4ef6\u53d1\u5e03<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\">DDD\u5206\u5c42\u67b6\u6784<\/td>\n<td style=\"text-align: left;\">\u57fa\u7840\u5c42\u3001\u9886\u57df\u5c42\u3001\u5e94\u7528\u5c42\u548c\u63a5\u53e3\u5c42\u7684\u534f\u4f5c<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\">\u670d\u52a1\u7684\u5206\u5c42\u4e0e\u534f\u4f5c<\/td>\n<td style=\"text-align: left;\">\u5b9e\u4f53\u65b9\u6cd5\u3001\u9886\u57df\u670d\u52a1\u3001\u5e94\u7528\u670d\u52a1\u3001\u63a5\u53e3\u670d\u52a1\uff0c\u670d\u52a1\u7684\u7ec4\u5408\u548c\u7f16\u6392\uff0c\u8de8\u591a\u4e2a\u805a\u5408\u7684\u670d\u52a1\u7ba1\u7406\u4e0e\u534f\u540c<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\">\u5bf9\u8c61\u7684\u5206\u5c42\u4e0e\u8f6c\u6362<\/td>\n<td style=\"text-align: left;\">DTO\u3001DO\u4e0ePO\u7b49\u5bf9\u8c61\u5728\u4e0d\u540c\u5c42\u7684\u8f6c\u6362\u548c\u5b9e\u73b0\u8fc7\u7a0b<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\">\u5fae\u670d\u52a1\u95f4\u7684\u8bbf\u95ee<\/td>\n<td style=\"text-align: left;\">\u767b\u5f55\u548c\u8ba4\u8bc1\u670d\u52a1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<ul>\n<li>\u4e24\u9876\u5e3d\u5b50<br \/>\n1.\u5728\u4e0d\u6dfb\u52a0\u65b0\u529f\u80fd\u7684\u524d\u63d0\u4e0b\uff0c\u91cd\u6784\u4ee3\u7801\uff0c\u8c03\u6574\u539f\u6709\u7a0b\u5e8f\u7ed3\u6784\uff0c\u4ee5\u9002\u5e94\u65b0\u529f\u80fd\u3002<br \/>\n2.\u5b9e\u73b0\u65b0\u7684\u529f\u80fd\u3002<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"26_%E6%80%BB%E7%BB%93\"><\/span>2.6. \u603b\u7ed3<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li><strong><font color=purple>\u670d\u52a1\u662f\u884c\u4e3a\u7684\u62bd\u8c61\u3002<\/font><\/strong><\/li>\n<li><strong><font color=purple>\u5e94\u7528\u670d\u52a1\u901a\u8fc7\u59d4\u6258\u9886\u57df\u5bf9\u8c61\u548c\u9886\u57df\u670d\u52a1\u6765\u8868\u8fbe\u7528\u4f8b\u548c\u7528\u6237\u6545\u4e8b\u3002<\/font><\/strong><\/li>\n<li><strong><font color=purple>\u9886\u57df\u5bf9\u8c61\uff08\u5b9e\u4f53\u548c\u503c\u5bf9\u8c61\uff09\u8d1f\u8d23\u5355\u4e00\u64cd\u4f5c\u3002<\/font><\/strong><\/li>\n<li><strong><font color=purple>\u9886\u57df\u670d\u52a1\u7528\u4e8e\u534f\u8c03\u591a\u4e2a\u9886\u57df\u5bf9\u8c61\u5171\u540c\u5b8c\u6210\u67d0\u4e2a\u4e1a\u52a1\u64cd\u4f5c\uff0c\u5b83\u5305\u542b\u5904\u7406\u4e1a\u52a1\u7684\u903b\u8f91\u3002\u800c\u5e94\u7528\u670d\u52a1\u4e0d\u8981\u5904\u7406\u4e1a\u52a1\u903b\u8f91\uff0c\u5b83\u5173\u6ce8\u7684\u662f\u5b89\u5168\u3001\u4e8b\u52a1\u7b49\u975e\u4e1a\u52a1\u903b\u8f91\u3002<\/font><\/strong><\/li>\n<li><strong><font color=purple>\u5bf9\u4e8b\u52a1\u7684\u7ba1\u7406\u7edd\u5bf9\u4e0d\u80fd\u653e\u5728\u9886\u57df\u670d\u52a1\u5c42\uff0c\u800c\u5e94\u8be5\u653e\u5728\u5e94\u7528\u670d\u52a1\u5c42\u3002\u56e0\u4e3a\u548c\u9886\u57df\u6a21\u578b\u76f8\u5173\u7684\u64cd\u4f5c\u7684\u7c92\u5ea6\u90fd\u5f88\u7ec6\uff0c\u65e0\u6cd5\u7528\u4e8e\u4e8b\u52a1\u7ba1\u7406\u3002\u901a\u5e38\u53ef\u4ee5\u653e\u5728\u5e94\u7528\u670d\u52a1\u4e2d\u7684\u903b\u8f91\u6709\uff1a\u53c2\u6570\u9a8c\u8bc1\u3001\u9519\u8bef\u5904\u7406\u3001\u76d1\u63a7\u65e5\u5fd7\u3001\u4e8b\u52a1\u5904\u7406\u3001\u8ba4\u8bc1\u4e0e\u6388\u6743\u3002<\/font><\/strong><\/li>\n<li><strong><font color=purple>\u5e94\u7528\u670d\u52a1\u662f\u9886\u57df\u670d\u52a1\u7684\u5ba2\u6237\u65b9\uff0c\u4e5f\u5c31\u662f\u8bf4\u5e94\u7528\u670d\u52a1\u4f1a\u8c03\u7528\u9886\u57df\u670d\u52a1\u91cc\u7684\u65b9\u6cd5\uff0c\u5b9e\u73b0\u5bf9\u9886\u57df\u670d\u52a1\u7684\u7f16\u6392\u3002<\/font><\/strong><\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"3_%E9%A2%86%E5%9F%9F%E6%A8%A1%E5%9E%8B%E4%B8%AD%E7%9A%84%E5%AE%9E%E4%BD%93%E7%B1%BB%E4%BB%8B%E7%BB%8D\"><\/span>3. \u9886\u57df\u6a21\u578b\u4e2d\u7684\u5b9e\u4f53\u7c7b\u4ecb\u7ecd<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u9886\u57df\u6a21\u578b\u4e2d\u7684\u5b9e\u4f53\u7c7b\u5206\u4e3a\u56db\u79cd\u7c7b\u578b\uff1aVO\u3001DTO\u3001DO\u3001PO\uff0c\u5404\u79cd\u5b9e\u4f53\u7c7b\u7528\u4e8e\u4e0d\u540c\u4e1a\u52a1\u5c42\u6b21\u95f4\u7684\u4ea4\u4e92\uff0c\u5e76\u4f1a\u5728\u5c42\u6b21\u5185\u5b9e\u73b0\u5b9e\u4f53\u7c7b\u4e4b\u95f4\u7684\u8f6c\u5316\u3002\u76f8\u5e94\u5404\u5c42\u95f4\u5b9e\u4f53\u7684\u4f20\u9012\u5982\u4e0b\u56fe\uff1a<\/p>\n<ul>\n<li>\u7528\u6237\u53d1\u51fa\u8bf7\u6c42\uff08\u53ef\u80fd\u662f\u586b\u5199\u8868\u5355\uff09\uff0c\u8868\u5355\u7684\u6570\u636e\u5728\u5c55\u793a\u5c42\u88ab\u5339\u914d\u4e3aVO\u3002<\/li>\n<li>\u7528\u6237\u5c42\u628aVO\u8f6c\u6362\u4e3a\u670d\u52a1\u5c42\u5bf9\u5e94\u65b9\u6cd5\u6240\u8981\u6c42\u7684DTO\uff0c\u4f20\u9001\u7ed9\u670d\u52a1\u5c42\u3002<\/li>\n<li>\u670d\u52a1\u5c42\u9996\u5148\u6839\u636eDTO\u7684\u6570\u636e\u6784\u9020\uff08\u6216\u91cd\u5efa\uff09\u4e00\u4e2aDO\uff0c\u8c03\u7528DO\u7684\u4e1a\u52a1\u65b9\u6cd5\u5b8c\u6210\u5177\u4f53\u4e1a\u52a1\u3002<\/li>\n<li>\u670d\u52a1\u5c42\u628aDO\u8f6c\u6362\u4e3a\u6301\u4e45\u5c42\u5bf9\u5e94\u7684PO\uff0c\u8c03\u7528\u6301\u4e45\u5c42\u7684\u6301\u4e45\u5316\u65b9\u6cd5\uff0c\u628aPO\u4f20\u9012\u7ed9\u5b83\uff0c\u5b8c\u6210\u6301\u4e45\u5316\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"31_VO-View_Object\"><\/span>3.1. VO-View Object<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u89c6\u56fe\u5bf9\u8c61\uff0c\u7528\u4e8e\u7528\u6237\u5c42\uff0c\u5b83\u7684\u4f5c\u7528\u662f\u628a\u67d0\u4e2a\u6307\u5b9a\u9875\u9762\uff08\u6216\u7ec4\u4ef6\uff09\u7684\u6240\u6709\u6570\u636e\u5c01\u88c5\u8d77\u6765\u3002<\/p>\n<h4><span class=\"ez-toc-section\" id=\"32_DTO-Data_Transfer_Object\"><\/span>3.2. DTO-Data Transfer Object<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u6570\u636e\u4f20\u8f93\u5bf9\u8c61\uff0c\u8fd9\u4e2a\u6982\u5ff5\u6765\u6e90\u4e8eJ2EE\u7684\u8bbe\u8ba1\u6a21\u5f0f\uff0c\u539f\u6765\u7684\u76ee\u7684\u662f\u4e3a\u4e86EJB\u7684\u5206\u5e03\u5f0f\u5e94\u7528\u63d0\u4f9b\u7c97\u7c92\u5ea6\u7684\u6570\u636e\u5b9e\u4f53\uff0c\u4ee5\u51cf\u5c11\u5206\u5e03\u5f0f\u8c03\u7528\u7684\u6b21\u6570\uff0c\u4ece\u800c\u63d0\u9ad8\u5206\u5e03\u5f0f\u8c03\u7528\u7684\u6027\u80fd\u548c\u964d\u4f4e\u7f51\u7edc\u8d1f\u8f7d\u3002\u4f46\u5728\u8fd9\u91cc\u8868\u793a\u6570\u636e\u4f20\u8f93\u7684\u8f7d\u4f53\uff0c\u5185\u90e8\u4e0d\u5b58\u5728\u4efb\u4f55\u4e1a\u52a1\u903b\u8f91\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7 <code>DTO<\/code> \u628a\u5185\u90e8\u7684\u9886\u57df\u5bf9\u8c61\u4e0e\u5916\u754c\u9694\u79bb\uff0c\u901a\u5e38\u7528\u4e8e\u7528\u6237\u5c42\u4e0e\u670d\u52a1\u5c42\u4e4b\u95f4\u7684\u6570\u636e\u4f20\u8f93\u5bf9\u8c61\u3002<\/p>\n<h4><span class=\"ez-toc-section\" id=\"33_VO%E4%B8%8EDTO%E7%9A%84%E5%8C%BA%E5%88%AB\"><\/span>3.3. VO\u4e0eDTO\u7684\u533a\u522b<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u65e2\u7136DTO\u662f\u7528\u6237\u5c42\u4e0e\u670d\u52a1\u5c42\u4e4b\u95f4\u4f20\u9012\u6570\u636e\u7684\u5bf9\u8c61\uff0c\u4e3a\u4ec0\u4e48\u8fd8\u9700\u8981\u4e00\u4e2aVO\u5462\uff1f\u5bf9\uff01\u5bf9\u4e8e\u7edd\u5927\u90e8\u5206\u7684\u5e94\u7528\u573a\u666f\u6765\u8bf4\uff0cDTO\u548cVO\u7684\u5c5e\u6027\u503c\u57fa\u672c\u662f\u4e00\u81f4\u7684\uff0c\u800c\u4e14\u4ed6\u4eec\u901a\u5e38\u90fd\u662fPOJO\uff0c\u56e0\u6b64\u6ca1\u5fc5\u8981\u591a\u6b64\u4e00\u4e3e\uff0c\u4f46\u4e0d\u8981\u5fd8\u8bb0\u8fd9\u662f\u5b9e\u73b0\u5c42\u9762\u7684\u601d\u7ef4\uff0c\u5bf9\u4e8e\u8bbe\u8ba1\u5c42\u9762\u6765\u8bf4\uff0c\u6982\u5ff5\u4e0a\u8fd8\u662f\u5e94\u8be5\u5b58\u5728VO\u548cDTO\uff0c\u56e0\u4e3a\u4e24\u8005\u6709\u7740\u672c\u8d28\u7684\u533a\u522b\uff0cDTO\u4ee3\u8868\u670d\u52a1\u5c42\u9700\u8981\u63a5\u6536\u7684\u6570\u636e\u548c\u8fd4\u56de\u7684\u6570\u636e\uff0c\u800cVO\u4ee3\u8868\u7528\u6237\u5c42\u9700\u8981\u663e\u793a\u7684\u6570\u636e\u3002<br \/>\n\u7528\u4e00\u4e2a\u4f8b\u5b50\u6765\u8bf4\u660e\u53ef\u80fd\u4f1a\u6bd4\u8f83\u5bb9\u6613\u7406\u89e3\uff1a\u4f8b\u5982\u670d\u52a1\u5c42\u6709\u4e00\u4e2agetUser\u7684\u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u7cfb\u7edf\u7528\u6237\uff0c\u5176\u4e2d\u6709\u4e00\u4e2a\u5c5e\u6027\u662fgender(\u6027\u522b)\uff0c\u5bf9\u4e8e\u670d\u52a1\u5c42\u6765\u8bf4\uff0c\u5b83\u53ea\u4ece\u8bed\u4e49\u4e0a\u5b9a\u4e49\uff1a1-\u7537\u6027\uff0c2-\u5973\u6027\uff0c0-\u672a\u6307\u5b9a\uff0c\u800c\u5bf9\u4e8e\u7528\u6237\u5c42\u6765\u8bf4\uff0c\u5b83\u53ef\u80fd\u9700\u8981\u7528\u201c\u5e05\u54e5\u201d\u4ee3\u8868\u7537\u6027\uff0c\u7528\u201c\u7f8e\u5973\u201d\u4ee3\u8868\u5973\u6027\uff0c\u7528\u201c\u79d8\u5bc6\u201d\u4ee3\u8868\u672a\u6307\u5b9a\u3002<\/p>\n<h4><span class=\"ez-toc-section\" id=\"34_VO%E4%B8%8EDTO%E7%9A%84%E5%BA%94%E7%94%A8\"><\/span>3.4. VO\u4e0eDTO\u7684\u5e94\u7528<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u5728\u4ee5\u4e0b\u624d\u573a\u666f\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u8003\u8651\u628aVO\u4e0eDTO\u4e8c\u5408\u4e3a\u4e00\uff08\u6ce8\u610f\uff1a\u662f\u5b9e\u73b0\u5c42\u9762\uff09\uff1a<br \/>\n1\uff09\u9700\u6c42\u975e\u5e38\u6e05\u6670\u7a33\u5b9a\uff0c\u800c\u4e14\u5ba2\u6237\u7aef\u5f88\u660e\u786e\u53ea\u6709\u4e00\u4e2a\u7684\u65f6\u5019\uff0c\u6ca1\u6709\u5fc5\u8981\u628aVO\u548cDTO\u533a\u5206\u5f00\u6765\uff0c\u8fd9\u65f6\u5019VO\u53ef\u4ee5\u9000\u9690\uff0c\u7528\u4e00\u4e2aDTO\u5373\u53ef\uff0c\u4e3a\u4ec0\u4e48\u662fVO\u9000\u9690\u800c\u4e0d\u662fDTO\uff1f\u56de\u5230\u8bbe\u8ba1\u5c42\u9762\uff0c\u670d\u52a1\u5c42\u7684\u804c\u8d23\u4f9d\u7136\u4e0d\u5e94\u8be5\u4e0e\u7528\u6237\u5c42\u8026\u5408\uff0c\u6240\u4ee5\uff0c\u5bf9\u4e8e\u524d\u9762\u7684\u4f8b\u5b50\uff0c\u4f60\u5f88\u5bb9\u6613\u7406\u89e3\uff0cDTO\u5bf9\u4e8e\u201c\u6027\u522b\u201d\u6765\u8bf4\uff0c\u4f9d\u7136\u4e0d\u80fd\u7528\u201c\u5e05\u54e5\u7f8e\u5973\u201d\uff0c\u8fd9\u4e2a\u8f6c\u6362\u5e94\u8be5\u4f9d\u8d56\u4e8e\u9875\u9762\u7684\u811a\u672c\uff08\u5982JavaScript\uff09\u6216\u5176\u4ed6\u673a\u5236\uff08JSTL\u3001EL\u3001CSS\uff09<br \/>\n2\uff09\u5373\u4f7f\u5ba2\u6237\u7aef\u53ef\u4ee5\u8fdb\u884c\u5b9a\u5236\uff0c\u6216\u8005\u5b58\u5728\u591a\u4e2a\u4e0d\u540c\u7684\u5ba2\u6237\u7aef\uff0c\u5982\u679c\u5ba2\u6237\u7aef\u80fd\u591f\u7528\u67d0\u79cd\u6280\u672f\uff08\u811a\u672c\u6216\u5176\u4ed6\u673a\u5236\uff09\u5b9e\u73b0\u8f6c\u6362\uff0c\u540c\u6837\u53ef\u4ee5\u8ba9VO\u9000\u9690\u3002<\/p>\n<h4><span class=\"ez-toc-section\" id=\"35_DO\"><\/span>3.5. DO<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>DO\uff08Domain Object\uff09\uff1a\u9886\u57df\u5bf9\u8c61\uff0c\u5c31\u662f\u4ece\u73b0\u5b9e\u4e16\u754c\u4e2d\u62bd\u8c61\u51fa\u6765\u7684\u6709\u5f62\u6216\u65e0\u5f62\u7684\u4e1a\u52a1\u5b9e\u4f53\u3002<strong><font color=red>DO\u4e0d\u662f\u7b80\u5355\u7684POJO\uff0c\u5b83\u5177\u6709\u9886\u57df\u4e1a\u52a1\u903b\u8f91\u3002<\/font><\/strong><\/p>\n<h4><span class=\"ez-toc-section\" id=\"36_DTO%E4%B8%8EDO%E7%9A%84%E5%8C%BA%E5%88%AB\"><\/span>3.6. DTO\u4e0eDO\u7684\u533a\u522b<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u9996\u5148\u662f\u6982\u5ff5\u4e0a\u7684\u533a\u522b\uff0cDTO\u662f\u7528\u6237\u5c42\u548c\u670d\u52a1\u5c42\u4e4b\u95f4\u7684\u6570\u636e\u4f20\u8f93\u5bf9\u8c61\uff08\u53ef\u4ee5\u8ba4\u4e3a\u662f\u4e24\u8005\u4e4b\u95f4\u7684\u534f\u8bae\uff09\uff0c\u800cDO\u662f\u5bf9\u73b0\u5b9e\u4e16\u754c\u5404\u79cd\u4e1a\u52a1\u89d2\u8272\u7684\u62bd\u8c61\uff0c\u8fd9\u5c31\u5f15\u51fa\u4e86\u4e24\u8005\u5728\u6570\u636e\u4e0a\u7684\u533a\u522b\uff0c\u4f8b\u5982UserInfo\u548cUser\uff0c\u5bf9\u4e8e\u4e00\u4e2agetUser\u65b9\u6cd5\u6765\u8bf4\uff0c\u672c\u8d28\u4e0a\u5b83\u6c38\u8fdc\u4e0d\u5e94\u8be5\u8fd4\u56de\u7528\u6237\u7684\u5bc6\u7801\uff0c\u56e0\u6b64UserInfo\u81f3\u5c11\u6bd4User\u5c11\u4e00\u4e2apassword\u7684\u6570\u636e\u3002\u800c\u5728\u9886\u57df\u9a71\u52a8\u8bbe\u8ba1\u4e2d\uff0c\u6b63\u5982\u7b2c\u4e00\u7bc7\u7cfb\u5217\u6587\u7ae0\u6240\u8bf4\uff0c<font color=red>DO\u4e0d\u662f\u7b80\u5355\u7684POJO\uff0c\u5b83\u5177\u6709\u9886\u57df\u4e1a\u52a1\u903b\u8f91\uff0c\u5982\u679c\u76f4\u63a5\u628aDO\u4f20\u9012\u7ed9\u7528\u6237\u5c42\uff0c\u7528\u6237\u5c42\u7684\u4ee3\u7801\u5c31\u53ef\u4ee5\u7ed5\u8fc7\u670d\u52a1\u5c42\u76f4\u63a5\u8c03\u7528\u5b83\u4e0d\u5e94\u8be5\u8bbf\u95ee\u7684\u64cd\u4f5c\uff0c\u5bf9\u4e8e\u57fa\u4e8eAOP\u62e6\u622a\u670d\u52a1\u5c42\u6765\u8fdb\u884c\u8bbf\u95ee\u63a7\u5236\u7684\u673a\u5236\u6765\u8bf4\uff0c\u8fd9\u95ee\u9898\u5c24\u4e3a\u7a81\u51fa\uff0c\u800c\u5728\u7528\u6237\u5c42\u8c03\u7528DO\u7684\u4e1a\u52a1\u65b9\u6cd5\u4e5f\u4f1a\u56e0\u4e3a\u4e8b\u52a1\u7684\u95ee\u9898\uff0c\u8ba9\u4e8b\u52a1\u96be\u4ee5\u63a7\u5236\u3002<\/font><\/p>\n<h4><span class=\"ez-toc-section\" id=\"37_DTO%E4%B8%8EDO%E7%9A%84%E5%BA%94%E7%94%A8\"><\/span>3.7. DTO\u4e0eDO\u7684\u5e94\u7528<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u4ece\u4e0a\u4e00\u8282\u7684\u4f8b\u5b50\u4e2d\uff0c\u4f60\u53ef\u80fd\u4f1a\u53d1\u73b0\u95ee\u9898\uff1a\u65e2\u7136getUser\u65b9\u6cd5\u8fd4\u56de\u7684UserInfo\u4e0d\u5e94\u8be5\u5305\u542bpassword\uff0c\u90a3\u4e48\u5c31\u4e0d\u5e94\u8be5\u5b58\u5728password\u8fd9\u4e2a\u5c5e\u6027\u5b9a\u4e49\uff0c\u4f46\u5982\u679c\u540c\u65f6\u6709\u4e00\u4e2acreateUser\u7684\u65b9\u6cd5\uff0c\u4f20\u5165\u7684UserInfo\u9700\u8981\u5305\u542b\u7528\u6237\u7684password\uff0c\u600e\u4e48\u529e\uff1f<br \/>\n\u5728\u8bbe\u8ba1\u5c42\u9762\uff0c\u7528\u6237\u5c42\u5411\u670d\u52a1\u5c42\u4f20\u9012\u7684DTO\u4e0e\u670d\u52a1\u5c42\u8fd4\u56de\u7ed9\u7528\u6237\u5c42\u7684DTO\u5728\u6982\u5ff5\u4e0a\u662f\u4e0d\u540c\u7684\uff0c\u4f46\u5728\u5b9e\u73b0\u5c42\u9762\uff0c\u6211\u4eec\u901a\u5e38\u5f88\u5c11\u4f1a\u8fd9\u6837\u505a\uff08\u5b9a\u4e49\u4e24\u4e2aUserInfo\uff0c\u751a\u81f3\u66f4\u591a\uff09\uff0c\u56e0\u4e3a\u8fd9\u6837\u505a\u5e76\u4e0d\u89c1\u5f97\u5f88\u660e\u667a\uff0c\u6211\u4eec\u5b8c\u5168\u53ef\u4ee5\u8bbe\u8ba1\u4e00\u4e2a\u5b8c\u5168\u517c\u5bb9\u7684DTO\uff0c\u5728\u670d\u52a1\u5c42\u63a5\u6536\u6570\u636e\u7684\u65f6\u5019\uff0c\u4e0d\u8be5\u7531\u7528\u6237\u5c42\u8bbe\u7f6e\u7684\u5c5e\u6027\uff08\u5982\u8ba2\u5355\u7684\u603b\u4ef7\u5e94\u8be5\u7531\u5176\u5355\u4ef7\u3001\u6570\u91cf\u3001\u6298\u6263\u7b49\u51b3\u5b9a\uff09\uff0c\u65e0\u8bba\u7528\u6237\u5c42\u662f\u5426\u8bbe\u7f6e\uff0c\u670d\u52a1\u5c42\u90fd\u4e00\u6982\u5ffd\u7565\uff0c\u800c\u5728\u670d\u52a1\u5c42\u8fd4\u56de\u6570\u636e\u65f6\uff0c\u4e0d\u8be5\u8fd4\u56de\u7684\u6570\u636e\uff08\u5982\u7528\u6237\u5bc6\u7801\uff09\uff0c\u5c31\u4e0d\u8bbe\u7f6e\u5bf9\u5e94\u7684\u5c5e\u6027\u3002<br \/>\n\u5bf9\u4e8eDO\u6765\u8bf4\uff0c\u8fd8\u6709\u4e00\u70b9\u9700\u8981\u8bf4\u660e\uff1a\u4e3a\u4ec0\u4e48\u4e0d\u5728\u670d\u52a1\u5c42\u4e2d\u76f4\u63a5\u8fd4\u56deDO\u5462\uff1f\u8fd9\u6837\u53ef\u4ee5\u7701\u53bbDTO\u7684\u7f16\u7801\u548c\u8f6c\u6362\u5de5\u4f5c\uff0c\u539f\u56e0\u5982\u4e0b\uff1a<br \/>\n1\uff09\u4e24\u8005\u5728\u672c\u8d28\u4e0a\u7684\u533a\u522b\u53ef\u80fd\u5bfc\u81f4\u5f7c\u6b64\u5e76\u4e0d\u4e00\u4e00\u5bf9\u5e94\uff0c\u4e00\u4e2aDTO\u53ef\u80fd\u5bf9\u5e94\u591a\u4e2aDO\uff0c\u53cd\u4e4b\u4ea6\u7136\uff0c\u751a\u81f3\u4e24\u8005\u5b58\u5728\u591a\u5bf9\u591a\u7684\u5173\u7cfb\u3002<br \/>\n2\uff09DO\u5177\u6709\u4e00\u4e9b\u4e0d\u5e94\u8be5\u8ba9\u7528\u6237\u5c42\u77e5\u9053\u7684\u6570\u636e<br \/>\n3\uff09DO\u5177\u6709\u4e1a\u52a1\u65b9\u6cd5\uff0c\u5982\u679c\u76f4\u63a5\u628aDO\u4f20\u9012\u7ed9\u7528\u6237\u5c42\uff0c\u7528\u6237\u5c42\u7684\u4ee3\u7801\u5c31\u53ef\u4ee5\u7ed5\u8fc7\u670d\u52a1\u5c42\u76f4\u63a5\u8c03\u7528\u5b83\u4e0d\u5e94\u8be5\u8bbf\u95ee\u7684\u64cd\u4f5c\uff0c\u5bf9\u4e8e\u57fa\u4e8eAOP\u62e6\u622a\u670d\u52a1\u5c42\u6765\u8fdb\u884c\u8bbf\u95ee\u63a7\u5236\u7684\u673a\u5236\u6765\u8bf4\uff0c\u8fd9\u95ee\u9898\u5c24\u4e3a\u7a81\u51fa\uff0c\u800c\u5728\u7528\u6237\u5c42\u8c03\u7528DO\u7684\u4e1a\u52a1\u65b9\u6cd5\u4e5f\u4f1a\u56e0\u4e3a\u4e8b\u52a1\u7684\u95ee\u9898\uff0c\u8ba9\u4e8b\u52a1\u96be\u4ee5\u63a7\u5236\u3002\u5bf9\u4e8e\u67d0\u4e9bORM\u6846\u67b6\uff08\u5982Hibernate\uff09\u6765\u8bf4\uff0c\u901a\u5e38\u4f1a\u4f7f\u7528\u201c\u5ef6\u8fdf\u52a0\u8f7d\u201d\u6280\u672f\uff0c\u5982\u679c\u76f4\u63a5\u628aDO\u66b4\u9732\u7ed9\u7528\u6237\u5c42\uff0c\u5bf9\u4e8e\u5927\u90e8\u5206\u60c5\u51b5\uff0c\u7528\u6237\u5c42\u4e0d\u5728\u4e8b\u52a1\u8303\u56f4\u4e4b\u5185\uff08Open session in view\u5728\u5927\u90e8\u5206\u60c5\u51b5\u4e0b\u4e0d\u662f\u4e00\u79cd\u503c\u5f97\u63a8\u5d07\u7684\u8bbe\u8ba1\uff09\uff0c\u5982\u679c\u5176\u5c1d\u8bd5\u5728Session\u5173\u95ed\u7684\u60c5\u51b5\u4e0b\u83b7\u53d6\u4e00\u4e2a\u672a\u52a0\u8f7d\u7684\u5173\u8054\u5bf9\u8c61\uff0c\u4f1a\u51fa\u73b0\u8fd0\u884c\u65f6\u5f02\u5e38\uff08\u5bf9\u4e8eHibernate\u6765\u8bf4\uff0c\u5c31\u662fLazyInitiliaztionException\uff09\u3002<br \/>\n4\uff09\u4ece\u8bbe\u8ba1\u5c42\u9762\u6765\u8bf4\uff0c\u7528\u6237\u5c42\u4f9d\u8d56\u4e8e\u670d\u52a1\u5c42\uff0c\u670d\u52a1\u5c42\u4f9d\u8d56\u4e8e\u9886\u57df\u5c42\uff0c<font color=red>\u5982\u679c\u628aDO\u66b4\u9732\u51fa\u53bb\uff0c\u5c31\u4f1a\u5bfc\u81f4\u7528\u6237\u5c42\u76f4\u63a5\u4f9d\u8d56\u4e8e\u9886\u57df\u5c42\uff0c\u8fd9\u867d\u7136\u4f9d\u7136\u662f\u5355\u5411\u4f9d\u8d56\uff0c\u4f46\u8fd9\u79cd\u8de8\u5c42\u4f9d\u8d56\u4f1a\u5bfc\u81f4\u4e0d\u5fc5\u8981\u7684\u8026\u5408\u3002<\/font><\/p>\n<h4><span class=\"ez-toc-section\" id=\"38_PO-Persistent_Object\"><\/span>3.8. PO-Persistent Object<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u6301\u4e45\u5316\u5bf9\u8c61\uff0c\u5b83\u8ddf\u6301\u4e45\u5c42\uff08\u901a\u5e38\u662f\u5173\u7cfb\u578b\u6570\u636e\u5e93\uff09\u7684\u6570\u636e\u7ed3\u6784\u5f62\u6210\u4e00\u4e00\u5bf9\u5e94\u7684\u6620\u5c04\u5173\u7cfb\uff0c\u5982\u679c\u6301\u4e45\u5c42\u662f\u5173\u7cfb\u578b\u6570\u636e\u5e93\uff0c\u90a3\u4e48\uff0c\u6570\u636e\u8868\u4e2d\u7684\u6bcf\u4e2a\u5b57\u6bb5\uff08\u6216\u82e5\u5e72\u4e2a\uff09\u5c31\u5bf9\u5e94PO\u7684\u4e00\u4e2a\uff08\u6216\u82e5\u5e72\u4e2a\uff09\u5c5e\u6027\u3002<\/p>\n<h4><span class=\"ez-toc-section\" id=\"39_DO%E4%B8%8EPO%E7%9A%84%E5%8C%BA%E5%88%AB\"><\/span>3.9. DO\u4e0ePO\u7684\u533a\u522b<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>DO\u548cPO\u5728\u7edd\u5927\u90e8\u5206\u60c5\u51b5\u4e0b\u662f\u4e00\u4e00\u5bf9\u5e94\u7684\uff0cPO\u662f\u53ea\u542b\u6709get\/set\u65b9\u6cd5\u7684POJO\uff0c\u4f46\u67d0\u4e9b\u573a\u666f\u8fd8\u662f\u80fd\u53cd\u6620\u51fa\u4e24\u8005\u5728\u6982\u5ff5\u4e0a\u5b58\u5728\u672c\u8d28\u7684\u533a\u522b\uff1a<br \/>\n1\uff09DO\u5728\u67d0\u4e9b\u573a\u666f\u4e0b\u4e0d\u9700\u8981\u8fdb\u884c\u663e\u5f0f\u7684\u6301\u4e45\u5316\uff0c\u4f8b\u5982\u5229\u7528\u7b56\u7565\u6a21\u5f0f\u8bbe\u8ba1\u7684\u5546\u54c1\u6298\u6263\u7b56\u7565\uff0c\u4f1a\u884d\u751f\u51fa\u6298\u6263\u7b56\u7565\u7684\u63a5\u53e3\u548c\u4e0d\u540c\u6298\u6263\u7b56\u7565\u5b9e\u73b0\u7c7b\uff0c\u8fd9\u4e9b\u6298\u6263\u7b56\u7565\u5b9e\u73b0\u7c7b\u53ef\u4ee5\u7b97\u662fDO\uff0c\u4f46\u5b83\u4eec\u53ea\u9a7b\u7559\u5728\u9759\u6001\u5185\u5b58\uff0c\u4e0d\u9700\u8981\u6301\u4e45\u5316\u5230\u6301\u4e45\u5c42\uff0c\u56e0\u6b64\uff0c\u8fd9\u7c7bDO\u662f\u4e0d\u5b58\u5728\u5bf9\u5e94\u7684PO\u7684\u3002<br \/>\n2\uff09\u540c\u6837\u7684\u9053\u7406\uff0c\u67d0\u4e9b\u573a\u666f\u4e0b\uff0cPO\u4e5f\u6ca1\u6709\u5bf9\u5e94\u7684DO\uff0c\u4f8b\u5982\u8001\u5e08Teacher\u548c\u5b66\u751fStudent\u5b58\u5728\u591a\u5bf9\u591a\u7684\u5173\u7cfb\uff0c\u5728\u5173\u7cfb\u6570\u636e\u5e93\u4e2d\uff0c\u8fd9\u79cd\u5173\u7cfb\u9700\u8981\u8868\u73b0\u4e3a\u4e00\u4e2a\u4e2d\u95f4\u8868\uff0c\u4e5f\u5c31\u5bf9\u5e94\u6709\u4e00\u4e2aTeacherAndStudentPO\u7684PO\uff0c\u4f46\u8fd9\u4e2aPO\u5728\u4e1a\u52a1\u9886\u57df\u6ca1\u6709\u4efb\u4f55\u73b0\u5b9e\u7684\u610f\u4e49\uff0c\u5b83\u5b8c\u5168\u4e0d\u80fd\u4e0e\u4efb\u4f55DO\u5bf9\u5e94\u4e0a\u3002\u8fd9\u91cc\u8981\u7279\u522b\u58f0\u660e\uff0c\u5e76\u4e0d\u662f\u6240\u6709\u591a\u5bf9\u591a\u5173\u7cfb\u90fd\u6ca1\u6709\u4e1a\u52a1\u542b\u4e49\uff0c\u8fd9\u8ddf\u5177\u4f53\u4e1a\u52a1\u573a\u666f\u6709\u5173\uff0c\u4f8b\u5982\uff1a\u4e24\u4e2aPO\u4e4b\u95f4\u7684\u5173\u7cfb\u4f1a\u5f71\u54cd\u5177\u4f53\u4e1a\u52a1\uff0c\u5e76\u4e14\u8fd9\u79cd\u5173\u7cfb\u5b58\u5728\u591a\u79cd\u7c7b\u578b\uff0c\u90a3\u4e48\u8fd9\u79cd\u591a\u5bf9\u591a\u5173\u7cfb\u4e5f\u5e94\u8be5\u8868\u73b0\u4e3a\u4e00\u4e2aDO\uff0c\u53c8\u5982\uff1a\u201c\u89d2\u8272\u201d\u4e0e\u201c\u8d44\u6e90\u201d\u4e4b\u95f4\u5b58\u5728\u591a\u5bf9\u591a\u5173\u7cfb\uff0c\u800c\u8fd9\u79cd\u5173\u7cfb\u5f88\u660e\u663e\u4f1a\u8868\u73b0\u4e3a\u4e00\u4e2aDO\u2014\u2014\u201c\u6743\u9650\u201d\u3002<br \/>\n3\uff09\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u4e3a\u4e86\u67d0\u79cd\u6301\u4e45\u5316\u7b56\u7565\u6216\u8005\u6027\u80fd\u7684\u8003\u8651\uff0c\u4e00\u4e2aPO\u53ef\u80fd\u5bf9\u5e94\u591a\u4e2aDO\uff0c\u53cd\u4e4b\u4ea6\u7136\u3002\u4f8b\u5982\u5ba2\u6237Customer\u6709\u5176\u8054\u7cfb\u4fe1\u606fContacts\uff0c\u8fd9\u91cc\u662f\u4e24\u4e2a\u4e00\u5bf9\u4e00\u5173\u7cfb\u7684DO\uff0c\u4f46\u53ef\u80fd\u51fa\u4e8e\u6027\u80fd\u7684\u8003\u8651\uff08\u6781\u7aef\u60c5\u51b5\uff0c\u6743\u4f5c\u4e3e\u4f8b\uff09\uff0c\u4e3a\u4e86\u51cf\u5c11\u6570\u636e\u5e93\u7684\u8fde\u63a5\u67e5\u8be2\u64cd\u4f5c\uff0c\u628aCustomer\u548cContacts\u4e24\u4e2aDO\u6570\u636e\u5408\u5e76\u5230\u4e00\u5f20\u6570\u636e\u8868\u4e2d\u3002\u53cd\u8fc7\u6765\uff0c\u5982\u679c\u4e00\u672c\u56fe\u4e66Book\uff0c\u6709\u4e00\u4e2a\u5c5e\u6027\u662f\u5c01\u9762cover\uff0c\u4f46\u8be5\u5c5e\u6027\u662f\u4e00\u526f\u56fe\u7247\u7684\u4e8c\u8fdb\u5236\u6570\u636e\uff0c\u800c\u67d0\u4e9b\u67e5\u8be2\u64cd\u4f5c\u4e0d\u5e0c\u671b\u628acover\u4e00\u5e76\u52a0\u8f7d\uff0c\u4ece\u800c\u51cf\u8f7b\u78c1\u76d8IO\u5f00\u9500\uff0c\u540c\u65f6\u5047\u8bbeORM\u6846\u67b6\u4e0d\u652f\u6301\u5c5e\u6027\u7ea7\u522b\u7684\u5ef6\u8fdf\u52a0\u8f7d\uff0c\u90a3\u4e48\u5c31\u9700\u8981\u8003\u8651\u628acover\u72ec\u7acb\u5230\u4e00\u5f20\u6570\u636e\u8868\u4e2d\u53bb\uff0c\u8fd9\u6837\u5c31\u5f62\u6210\u4e00\u4e2aDO\u5bf9\u5e94\u5bf9\u591a\u4e2aPO\u7684\u60c5\u51b5\u3002<br \/>\n4\uff09PO\u7684\u67d0\u4e9b\u5c5e\u6027\u503c\u5bf9\u4e8eDO\u6ca1\u6709\u4efb\u4f55\u610f\u4e49\uff0c\u8fd9\u4e9b\u5c5e\u6027\u503c\u53ef\u80fd\u662f\u4e3a\u4e86\u89e3\u51b3\u67d0\u4e9b\u6301\u4e45\u5316\u7b56\u7565\u800c\u5b58\u5728\u7684\u6570\u636e\uff0c\u4f8b\u5982\u4e3a\u4e86\u5b9e\u73b0\u201c\u4e50\u89c2\u9501\u201d\uff0cPO\u5b58\u5728\u4e00\u4e2aversion\u7684\u5c5e\u6027\uff0c\u8fd9\u4e2aversion\u5bf9\u4e8eDO\u6765\u8bf4\u662f\u6ca1\u6709\u4efb\u4f55\u4e1a\u52a1\u610f\u4e49\u7684\uff0c\u5b83\u4e0d\u5e94\u8be5\u5728DO\u4e2d\u5b58\u5728\u3002\u540c\u7406\uff0cDO\u4e2d\u4e5f\u53ef\u80fd\u5b58\u5728\u4e0d\u9700\u8981\u6301\u4e45\u5316\u7684\u5c5e\u6027\u3002<\/p>\n<h4><span class=\"ez-toc-section\" id=\"310_DO%E4%B8%8EPO%E7%9A%84%E5%BA%94%E7%94%A8\"><\/span>3.10. DO\u4e0ePO\u7684\u5e94\u7528<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u7531\u4e8eORM\u6846\u67b6\u7684\u529f\u80fd\u975e\u5e38\u5f3a\u5927\u800c\u5927\u884c\u5176\u9053\uff0c\u800c\u4e14JavaEE\u4e5f\u63a8\u51fa\u4e86JPA\u89c4\u8303\uff0c\u73b0\u5728\u7684\u4e1a\u52a1\u5e94\u7528\u5f00\u53d1\uff0c\u57fa\u672c\u4e0a\u4e0d\u9700\u8981\u533a\u5206DO\u4e0ePO\uff0cPO\u5b8c\u5168\u53ef\u4ee5\u901a\u8fc7JPA\uff0cHibernate Annotations\/hbm\u9690\u85cf\u5728DO\u4e4b\u4e2d\u3002\u867d\u7136\u5982\u6b64\uff0c\u4f46\u6709\u4e9b\u95ee\u9898\u6211\u4eec\u8fd8\u5fc5\u987b\u6ce8\u610f\uff1a<br \/>\n1\uff09\u5bf9\u4e8eDO\u4e2d\u4e0d\u9700\u8981\u6301\u4e45\u5316\u7684\u5c5e\u6027\uff0c\u9700\u8981\u901a\u8fc7ORM\u663e\u5f0f\u7684\u58f0\u660e\uff0c\u5982\uff1a\u5728JPA\u4e2d\uff0c\u53ef\u4ee5\u5229\u7528@Transient\u58f0\u660e\u3002<br \/>\n2\uff09\u5bf9\u4e8ePO\u4e2d\u4e3a\u4e86\u67d0\u79cd\u6301\u4e45\u5316\u7b56\u7565\u800c\u5b58\u5728\u7684\u5c5e\u6027\uff0c\u4f8b\u5982version\uff0c\u7531\u4e8eDO\u3001PO\u5408\u5e76\u4e86\uff0c\u5fc5\u987b\u5728DO\u4e2d\u58f0\u660e\uff0c\u4f46\u7531\u4e8e\u8fd9\u4e2a\u5c5e\u6027\u5bf9DO\u662f\u6ca1\u6709\u4efb\u4f55\u4e1a\u52a1\u610f\u4e49\u7684\uff0c\u9700\u8981\u8ba9\u8be5\u5c5e\u6027\u5bf9\u5916\u9690\u85cf\u8d77\u6765\uff0c\u6700\u5e38\u89c1\u7684\u505a\u6cd5\u662f\u628a\u8be5\u5c5e\u6027\u7684get\/set\u65b9\u6cd5\u79c1\u6709\u5316\uff0c\u751a\u81f3\u4e0d\u63d0\u4f9bget\/set\u65b9\u6cd5\uff0c\u4f46\u5bf9\u4e8eHibernate\u6765\u8bf4\uff0c\u8fd9\u9700\u8981\u7279\u522b\u6ce8\u610f\uff0c\u7531\u4e8eHibernate\u4ece\u6570\u636e\u5e93\u8bfb\u53d6\u6570\u636e\u8f6c\u6362\u4e3aDO\u65f6\uff0c\u662f\u5229\u7528\u53cd\u5c04\u673a\u5236\u5148\u8c03\u7528DO\u7684\u7a7a\u53c2\u6570\u6784\u9020\u51fd\u6570\u6784\u9020DO\u5b9e\u4f8b\uff0c\u7136\u540e\u518d\u5229\u7528JavaBean\u7684\u89c4\u8303\u53cd\u5c04\u51faset\u65b9\u6cd5\u6765\u4e3a\u6bcf\u4e2a\u5c5e\u6027\u8bbe\u503c\uff0c\u5982\u679c\u4e0d\u663e\u5f0f\u58f0\u660eset\u65b9\u6cd5\uff0c\u6216\u628aset\u65b9\u6cd5\u8bbe\u7f6e\u4e3aprivate\uff0c\u90fd\u4f1a\u5bfc\u81f4Hibernate\u65e0\u6cd5\u521d\u59cb\u5316DO\uff0c\u4ece\u800c\u51fa\u73b0\u8fd0\u884c\u65f6\u5f02\u5e38\uff0c\u53ef\u884c\u7684\u505a\u6cd5\u662f\u628a\u5c5e\u6027\u7684set\u65b9\u6cd5\u8bbe\u7f6e\u4e3aprotected\u3002<br \/>\n3\uff09\u5bf9\u4e8e\u4e00\u4e2aDO\u5bf9\u5e94\u591a\u4e2aPO\uff0c\u6216\u8005\u4e00\u4e2aPO\u5bf9\u5e94\u591a\u4e2aDO\u7684\u573a\u666f\uff0c\u4ee5\u53ca\u5c5e\u6027\u7ea7\u522b\u7684\u5ef6\u8fdf\u52a0\u8f7d\uff0cHibernate\u90fd\u63d0\u4f9b\u4e86\u5f88\u597d\u7684\u652f\u6301\uff0c\u8bf7\u53c2\u8003Hibnate\u7684\u76f8\u5173\u8d44\u6599\u3002<\/p>\n<h4><span class=\"ez-toc-section\" id=\"311_%E6%80%BB%E7%BB%93\"><\/span>3.11. \u603b\u7ed3<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u5230\u76ee\u524d\u4e3a\u6b62\uff0c\u76f8\u4fe1\u5927\u5bb6\u90fd\u5df2\u7ecf\u6bd4\u8f83\u6e05\u6670\u7684\u4e86\u89e3VO\u3001DTO\u3001DO\u3001PO\u7684\u6982\u5ff5\u3001\u533a\u522b\u548c\u5b9e\u9645\u5e94\u7528\u4e86\u3002\u901a\u8fc7\u4e0a\u9762\u7684\u8be6\u7ec6\u5206\u6790\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u603b\u7ed3\u51fa\u4e00\u4e2a\u539f\u5219\uff1a<strong><font color=red>\u5206\u6790\u8bbe\u8ba1\u5c42\u9762\u548c\u5b9e\u73b0\u5c42\u9762\u5b8c\u5168\u662f\u4e24\u4e2a\u72ec\u7acb\u7684\u5c42\u9762\uff0c\u5373\u4f7f\u5b9e\u73b0\u5c42\u9762\u901a\u8fc7\u67d0\u79cd\u6280\u672f\u624b\u6bb5\u53ef\u4ee5\u628a\u4e24\u4e2a\u5b8c\u5168\u72ec\u7acb\u7684\u6982\u5ff5\u5408\u4e8c\u4e3a\u4e00\uff0c\u5728\u5206\u6790\u8bbe\u8ba1\u5c42\u9762\uff0c\u6211\u4eec\u4ecd\u7136\uff08\u81f3\u5c11\u5728\u5934\u8111\u4e2d\uff09\u9700\u8981\u628a\u6982\u5ff5\u4e0a\u72ec\u7acb\u7684\u4e1c\u897f\u6e05\u6670\u7684\u533a\u5206\u5f00\u6765\uff0c\u8fd9\u4e2a\u539f\u5219\u5bf9\u4e8e\u505a\u597d\u5206\u6790\u8bbe\u8ba1\u975e\u5e38\u91cd\u8981\uff08\u5de5\u5177\u8d8a\u5148\u8fdb\uff0c\u5f80\u5f80\u4f1a\u8ba9\u6211\u4eec\u8d8a\u9ebb\u6728\uff09\u3002<\/font><\/strong><\/p>\n<p>\u4e0b\u56fe\u662f\u5fae\u670d\u52a1\u5404\u5c42\u6570\u636e\u5bf9\u8c61\u7684\u804c\u8d23\u548c\u8f6c\u6362\u8fc7\u7a0b\u3002<\/p>\n<p><a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674482132010.png\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674482132010.png\" alt=\"file\" \/><\/a><\/p>\n<h3><span class=\"ez-toc-section\" id=\"4_%E9%A2%86%E5%9F%9F%E5%BB%BA%E6%A8%A1%E7%9A%84%E6%AD%A5%E9%AA%A4\"><\/span>4. \u9886\u57df\u5efa\u6a21\u7684\u6b65\u9aa4<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>DDD \u9886\u57df\u5efa\u6a21\u901a\u5e38\u91c7\u7528\u4e8b\u4ef6\u98ce\u66b4\uff0c\u5b83\u901a\u5e38\u91c7\u7528\u7528\u4f8b\u5206\u6790\u3001\u573a\u666f\u5206\u6790\u548c\u7528\u6237\u65c5\u7a0b\u5206\u6790\u7b49\u65b9\u6cd5\uff0c\u901a\u8fc7\u5934\u8111\u98ce\u66b4\u5217\u51fa\u6240\u6709\u53ef\u80fd\u7684\u4e1a\u52a1\u884c\u4e3a\u548c\u4e8b\u4ef6\uff0c\u7136\u540e\u627e\u51fa\u4ea7\u751f\u8fd9\u4e9b\u884c\u4e3a\u7684\u9886\u57df\u5bf9\u8c61\uff0c\u5e76\u68b3\u7406\u9886\u57df\u5bf9\u8c61\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u627e\u51fa\u805a\u5408\u6839\uff0c\u627e\u51fa\u4e0e\u805a\u5408\u6839\u4e1a\u52a1\u7d27\u5bc6\u5173\u8054\u7684\u5b9e\u4f53\u548c\u503c\u5bf9\u8c61\uff0c\u518d\u5c06\u805a\u5408\u6839\u3001\u5b9e\u4f53\u548c\u503c\u5bf9\u8c61\u7ec4\u5408\uff0c\u6784\u5efa\u805a\u5408\u3002<\/p>\n<h4><span class=\"ez-toc-section\" id=\"41_%E7%BB%9F%E4%B8%80%E8%AF%AD%E8%A8%80%EF%BC%8C%E6%A2%B3%E7%90%86%E4%B8%9A%E5%8A%A1\"><\/span>4.1. \u7edf\u4e00\u8bed\u8a00\uff0c\u68b3\u7406\u4e1a\u52a1<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>\u63cf\u7ed8\u9700\u6c42\u6216\u95ee\u9898\u672c\u8eab<\/li>\n<li>\u4e0d\u65ad\u68b3\u7406\u4e1a\u52a1<\/li>\n<li>\u63d0\u70bc\u51fa\u6838\u5fc3\u7684\u9886\u57df\u6a21\u578b\uff0c\u800c\u4e0d\u662f\u8868\u8bbe\u8ba1<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"42_%E5%88%92%E5%88%86%E9%99%90%E7%95%8C%E4%B8%8A%E4%B8%8B%E6%96%87\"><\/span>4.2. \u5212\u5206\u9650\u754c\u4e0a\u4e0b\u6587<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u6839\u636e <strong><font color=red>\u4e0d\u540c\u7684\u573a\u666f<\/font><\/strong> \u6765\u5212\u5206\u9650\u754c\u4e0a\u4e0b\u6587\u3002\u9650\u754c\u4e0a\u4e0b\u6587\u662f\u5fae\u670d\u52a1\u8bbe\u8ba1\u548c\u62c6\u5206\u7684\u4e3b\u8981\u4f9d\u636e\u3002\u5728\u9886\u57df\u6a21\u578b\u4e2d\uff0c\u5982\u679c\u4e0d\u8003\u8651\u6280\u672f\u5f02\u6784\u3001\u56e2\u961f\u6c9f\u901a\u7b49\u5176\u5b83\u5916\u90e8\u56e0\u7d20\uff0c\u4e00\u4e2a\u9650\u754c\u4e0a\u4e0b\u6587\u7406\u8bba\u4e0a\u5c31\u53ef\u4ee5\u8bbe\u8ba1\u4e3a\u4e00\u4e2a\u5fae\u670d\u52a1\u3002\u901a\u8fc7\u8fd9\u79cd\u57fa\u672c\u4e1a\u52a1\u7406\u89e3\u7684\u62c6\u5206\u65b9\u5f0f\uff0c\u53ef\u4ee5\u4f7f\u7cfb\u7edf\u505a\u5230\u9ad8\u5185\u805a\u3001\u5355\u4e00\u804c\u8d23\uff0c\u62c6\u5206\u51fa\u6765\u7684\u7b2c\u4e00\u4e2a\u5fae\u670d\u52a1\u90fd\u662f\u8f6f\u4ef6\u53d8\u5316\u7684\u4e00\u4e2a\u539f\u56e0\uff0c\u4e0d\u4f1a\u56e0\u4e3a\u67d0\u4e2a\u539f\u56e0\u53d1\u751f\u4e86\u53d8\u66f4\u53bb\u4fee\u6539\u6bcf\u4e2a\u5fae\u670d\u52a1\uff0c\u7275\u4e00\u53d1\u800c\u52a8\u5168\u8eab\u3002<\/p>\n<p><strong>\u6211\u4eec\u7684\u5b9e\u8df5\u662f\uff0c\u8003\u8651\u4ea7\u54c1\u6240\u8bb2\u7684\u901a\u7528\u8bed\u8a00\uff0c\u4ece\u4e2d\u63d0\u53d6\u4e00\u4e9b\u672f\u8bed\u79f0\u4e4b\u4e3a\u6982\u5ff5\u5bf9\u8c61\uff0c\u5bfb\u627e\u5bf9\u8c61\u4e4b\u95f4\u7684\u8054\u7cfb\uff1b\u6216\u8005\u4ece\u9700\u6c42\u91cc\u63d0\u53d6\u4e00\u4e9b\u52a8\u8bcd\uff0c\u89c2\u5bdf\u52a8\u8bcd\u548c\u5bf9\u8c61\u4e4b\u95f4\u7684\u5173\u7cfb\uff1b\u6211\u4eec\u5c06\u7d27\u8026\u5408\u7684\u5404\u81ea\u5708\u5728\u4e00\u8d77\uff0c\u89c2\u5bdf\u4ed6\u4eec\u5185\u5728\u7684\u8054\u7cfb\uff0c\u4ece\u800c\u5f62\u6210\u5bf9\u5e94\u7684\u754c\u9650\u4e0a\u4e0b\u6587\u3002\u5f62\u6210\u4e4b\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u5c1d\u8bd5\u7528\u8bed\u8a00\u6765\u63cf\u8ff0\u4e0b\u754c\u9650\u4e0a\u4e0b\u6587\u7684\u804c\u8d23\uff0c\u770b\u5b83\u662f\u5426\u6e05\u6670\u3001\u51c6\u786e\u3001\u7b80\u6d01\u548c\u5b8c\u6574\u3002\u7b80\u8a00\u4e4b\uff0c\u9650\u754c\u4e0a\u4e0b\u6587\u5e94\u8be5\u4ece\u9700\u6c42\u51fa\u53d1\uff0c\u6309\u9886\u57df\u5212\u5206\u3002<\/strong><\/p>\n<h4><span class=\"ez-toc-section\" id=\"43_%E8%AF%86%E5%88%AB%E8%81%9A%E5%90%88%E3%80%81%E8%81%9A%E5%90%88%E6%A0%B9\"><\/span>4.3. \u8bc6\u522b\u805a\u5408\u3001\u805a\u5408\u6839<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u4e00\u4e2a Bounded Context(\u9650\u754c\u4e0a\u4e0b\u6587)\u53ef\u80fd\u5305\u542b\u591a\u4e2a\u805a\u5408\uff0c\u6bcf\u4e2a\u805a\u5408\u90fd\u6709\u4e00\u4e2a\u6839\u5b9e\u4f53\uff0c\u53eb\u505a\u805a\u5408\u6839\u3002<\/p>\n<ol>\n<li>\n<p><font color=red>\u805a\u5408\u6839\u4e0e\u76f8\u5173\u5bf9\u8c61\u7684\u5173\u8054<\/font><\/p>\n<ul>\n<li>\u805a\u5408\u6839\u5230\u805a\u5408\u6839\uff1a\u901a\u8fc7ID\u5173\u8054<\/li>\n<li>\u805a\u5408\u6839\u5230\u5176\u5185\u90e8\u7684\u5b9e\u4f53\uff1a\u76f4\u63a5\u5bf9\u8c61\u5f15\u7528<\/li>\n<li>\u805a\u5408\u6839\u5230\u503c\u5bf9\u8c61\uff1a\u76f4\u63a5\u5bf9\u8c61\u5f15\u7528<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><font color=red>\u805a\u5408\u7684\u51e0\u4e2a\u8bbe\u8ba1\u539f\u5219<\/font><\/p>\n<ul>\n<li>\u805a\u5408\u662f\u7528\u6765\u5c01\u88c5\u771f\u6b63\u7684\u4e0d\u53d8\u6027\uff0c\u800c\u4e0d\u662f\u7b80\u5355\u7684\u5c06\u5bf9\u8c61\u7ec4\u5408\u5728\u4e00\u8d77\u3002<\/li>\n<li>\u805a\u5408\u5e94\u5c3d\u91cf\u8bbe\u8ba1\u7684\u5c0f\uff0c\u5c3d\u53ef\u80fd\u5c0f\u7684\u62c6\u5206\uff0c\u8fd9\u6837\u53ef\u4ee5\u907f\u514d\u91cd\u6784\u3001\u91cd\u65b0\u62c6\u5206\u3002<\/li>\n<li>\u805a\u5408\u5185\u5f3a\u4e00\u81f4\u6027\uff0c\u805a\u5408\u4e4b\u95f4\u6700\u7ec8\u4e00\u81f4\u6027\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h4><span class=\"ez-toc-section\" id=\"44_%E8%AE%BE%E8%AE%A1%E5%B0%8F%E8%81%9A%E5%90%88\"><\/span>4.4. \u8bbe\u8ba1\u5c0f\u805a\u5408<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u5982\u679c\u805a\u5408\u8bbe\u8ba1\u8fc7\u5927\uff0c\u805a\u5408\u4f1a\u56e0\u4e3a\u5305\u542b\u8fc7\u591a\u5b9e\u4f53\uff0c\u5bfc\u81f4\u5b9e\u4f53\u95f4\u7ba1\u7406\u590d\u6742\uff0c\u9ad8\u9891\u64cd\u4f5c\u65f6\u4f1a\u51fa\u73b0\u5e76\u53d1\u51b2\u7a81\u6216\u6570\u636e\u5e93\u9501\uff0c\u5373\u4fbf\u6211\u4eec\u53ef\u4ee5\u4fdd\u8bc1\u4e8b\u52a1\u7684\u6210\u529f\u6267\u884c\uff0c\u5b83\u4f9d\u7136\u6709\u53ef\u80fd\u9650\u5236\u7cfb\u7edf\u7684\u6027\u80fd\u548c\u53ef\u4f38\u7f29\u6027\u3002<br \/>\n\u5c0f\u805a\u5408\u8bbe\u8ba1\u5219\u53ef\u964d\u4f4e\u7531\u4e8e\u4e1a\u52a1\u8fc7\u5927\u5bfc\u81f4\u805a\u5408\u91cd\u6784\u7684\u53ef\u80fd\u6027\uff0c\u8ba9\u9886\u57df\u6a21\u578b\u66f4\u80fd\u9002\u5e94\u4e1a\u52a1\u53d8\u5316\u3002<\/p>\n<p>\u90a3\u4e48\uff0c\u8fd9\u91cc\u7684\u201c\u5c0f\u201d\u662f\u4ec0\u4e48\u610f\u601d\u5462\uff1f\u6700\u6781\u7aef\u7684\u60c5\u51b5\u662f\uff0c\u4e00\u4e2a\u805a\u5408\u53ea\u62e5\u6709\u5168\u5c40\u6807\u8bc6\u548c\u5355\u4e2a\u5c5e\u6027\uff0c\u5f53\u7136\uff0c\u8fd9\u5e76\u4e0d\u662f\u63a8\u8350\u505a\u6cd5\uff08\u9664\u975e\u8fd9\u6b63\u662f\u9700\u6c42\u6240\u5728\uff09\u3002\u597d\u7684\u505a\u6cd5\u662f\u4f7f\u7528\u6839\u5b9e\u4f53\uff08Root Entity\uff09\u6765\u8868\u793a\u805a\u5408\uff0c\u5176\u4e2d\u53ea\u5305\u542b\u6700\u5c0f\u6570\u91cf\u7684\u5c5e\u6027\u6216\u503c\u7c7b\u578b\u5c5e\u6027\u3002\u8fd9\u91cc\u7684\u201c\u6700\u5c0f\u6570\u91cf\u201d\u8868\u793a\u6240\u9700\u7684\u6700\u5c0f\u5c5e\u6027\u96c6\u5408\uff0c\u4e0d\u591a\u4e5f\u4e0d\u5c11\u3002<\/p>\n<p>\u54ea\u4e9b\u5c5e\u6027\u662f\u6240\u9700\u7684\u5462\uff1f\u7b80\u5355\u7684\u7b54\u6848\u662f\uff1a\u90a3\u4e9b\u5fc5\u987b\u4e0e\u5176\u4ed6\u5c5e\u6027\u4fdd\u6301\u4e00\u81f4\u3002\u6bd4\u5982\uff0c\u4e00\u4e2aProduct\u62e5\u6709name\u548c description\u5c5e\u6027\uff0c\u5b83\u4eec\u9700\u8981\u4fdd\u6301\u4e00\u81f4\uff0c\u5c06\u5b83\u4eec\u653e\u5728\u4e24\u4e2a\u4e0d\u540c\u7684\u805a\u5408\u4e2d\u663e\u7136\u65e0\u610f\u4e49\u3002\u5f53\u6211\u4eec\u4fee\u6539name\uff0c\u5f88\u53ef\u80fd\u4e5f\u4f1a\u540c\u65f6\u4fee\u6539 description\uff0c\u5982\u679c\u4f60\u53ea\u4fee\u6539\u5176\u4e00\uff0c\u5f88\u53ef\u80fd\u662f\u5728\u4fee\u6539\u8bed\u6cd5\u4e0a\u7684\u9519\u8bef\u6216\u4f7fdescription\u80fd\u591f\u66f4\u5339\u914dname\u3002<\/p>\n<p>\u5728\u805a\u5408\u4e2d\uff0c\u82e5\u8ba4\u4e3a\u6709\u4e9b\u88ab\u5305\u542b\u7684\u90e8\u5206\u5e94\u8be5\u5efa\u6a21\u6210\u5b9e\u4f53\uff0c\u600e\u4e48\u529e\uff1f\u9996\u5148\u601d\u8003\u8be5\u90e8\u5206\u662f\u5426\u4f1a\u968f\u7740\u65f6\u95f4\u800c\u6539\u53d8\u6216\u8be5\u90e8\u5206\u662f\u5426\u80fd\u88ab\u5168\u90e8\u66ff\u6362\u3002\u82e5\u53ef\u88ab\u5168\u90e8\u66ff\u6362\uff0c\u8bf7\u5c06\u5176\u5efa\u6a21\u6210\u503c\u5bf9\u8c61\uff0c\u800c\u975e\u5b9e\u4f53\u3002\u5f88\u591a\u60c5\u51b5\u4e0b\u5efa\u6a21\u6210\u5b9e\u4f53\u7684\u6982\u5ff5\u90fd\u53ef\u91cd\u6784\u6210\u503c\u5bf9\u8c61\u3002\u4f18\u5148\u9009\u7528\u503c\u5bf9\u8c61\u5e76\u975e\u610f\u5473\u7740\u805a\u5408\u5c31\u662f\u4e0d\u53d8\u7684\uff0c\u56e0\u4e3a\u5f53\u503c\u5bf9\u8c61\u5c5e\u6027\u88ab\u66ff\u6362\u6210\u5176\u4ed6\u503c\u65f6\uff0c\u6839\u5b9e\u4f53\u4e5f\u5c31\u968f\u4e4b\u6539\u53d8\u3002<\/p>\n<p>\u5c06\u805a\u5408\u7684\u5185\u90e8\u5efa\u6a21\u6210\u503c\u5bf9\u8c61\u6709\u5f88\u591a\u597d\u5904\u3002\u636e\u6240\u9009\u7528\u6301\u4e45\u5316\u673a\u5236\uff0c\u503c \u5bf9\u8c61\u53ef\u968f\u6839\u5b9e\u4f53\u800c\u5e8f\u5217\u5316\uff0c\u800c\u5b9e\u4f53\u5219\u9700\u5355\u72ec\u5b58\u50a8\u533a\u57df\u4e88\u4ee5\u8ddf\u8e2a\u3002<br \/>\n\u5b9e\u4f53\u8fd8\u4f1a\u5e26\u6765\u67d0\u4e9b\u4e0d\u5fc5\u8981\u64cd\u4f5c\uff0c\u6bd4\u5982\uff0c\u5728\u4f7f\u7528Hibernate\u65f6\uff0c\u9700\u5bf9\u591a\u8868\u8054\u5408\u67e5\u8be2\u3002\u5bf9\u5355\u8868\u8bfb\u53d6\u5feb\u5f97\u591a\uff0c\u800c\u4f7f\u7528\u503c\u5bf9\u8c61\u4e5f\u66f4\u65b9\u4fbf\u5b89\u5168\u3002\u7531\u4e8e\u503c\u5bf9\u8c61\u4e0d\u53d8\uff0c\u6d4b\u8bd5\u4e5f\u76f8\u5bf9\u7b80\u5355\u3002<\/p>\n<p>\u5c0f\u805a\u5408\u4e0d\u4ec5\u6709\u6027\u80fd\u548c\u53ef\u4f38\u7f29\u6027\u4e0a\u7684\u597d\u5904\uff0c\u5b83\u8fd8\u6709\u52a9\u4e8e\u4e8b\u52a1\u6210\u529f\u6267\u884c\uff0c\u5373\u53ef\u51cf\u5c11\u4e8b\u52a1\u63d0\u4ea4\u51b2\u7a81\u3002\u7cfb\u7edf\u7684\u53ef\u7528\u6027\u4e5f\u5f97\u5230\u4e86\u589e\u5f3a\u3002\u5728\u4f60\u7684\u9886\u57df\u4e2d\uff0c\u8feb\u4f7f\u4f60\u8bbe\u8ba1\u5927\u805a\u5408\u7684\u4e0d\u53d8\u6761\u4ef6\u7ea6\u675f\u5e76\u4e0d\u591a\u3002\u5f53\u4f60\u9047\u5230\u8fd9\u6837\u7684\u60c5\u51b5\u65f6\uff0c\u53ef\u4ee5\u8003\u8651\u6dfb\u52a0\u5b9e \u4f53\u6216\u8005\u662f\u96c6\u5408\uff0c\u4f46\u65e0\u8bba\u5982\u4f55\uff0c\u6211\u4eec\u90fd\u5e94\u8be5\u5c06\u805a\u5408\u8bbe\u8ba1\u5f97\u5c3d\u91cf\u5c0f\u3002<\/p>\n<h4><span class=\"ez-toc-section\" id=\"45_%E9%80%9A%E8%BF%87%E5%94%AF%E4%B8%80%E6%A0%87%E8%AF%86%E5%BC%95%E7%94%A8%E5%85%B6%E5%AE%83%E8%81%9A%E5%90%88\"><\/span>4.5. \u901a\u8fc7\u552f\u4e00\u6807\u8bc6\u5f15\u7528\u5176\u5b83\u805a\u5408<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u805a\u5408\u4e4b\u95f4\u662f\u901a\u8fc7\u5173\u8054\u5916\u90e8\u805a\u5408\u6839ID\u7684\u65b9\u5f0f\u5f15\u7528\uff0c\u800c\u4e0d\u662f\u76f4\u63a5\u5bf9\u8c61\u5f15\u7528\u7684\u65b9\u5f0f\u3002\u5916\u90e8\u805a\u5408\u7684\u5bf9\u8c61\u653e\u5728\u805a\u5408\u8fb9\u754c\u5185\u7ba1\u7406\uff0c\u5bb9\u6613\u5bfc\u81f4\u805a\u5408\u7684\u8fb9\u754c\u4e0d\u6e05\u6670\uff0c\u4e5f\u4f1a\u589e\u52a0\u805a\u5408\u4e4b\u95f4\u7684\u8026\u5408\u5ea6\u3002<\/p>\n<h4><span class=\"ez-toc-section\" id=\"46_%E5%9C%A8%E8%BE%B9%E7%95%8C%E4%B9%8B%E5%A4%96%E4%BD%BF%E7%94%A8%E6%9C%80%E7%BB%88%E4%B8%80%E8%87%B4%E6%80%A7\"><\/span>4.6. \u5728\u8fb9\u754c\u4e4b\u5916\u4f7f\u7528\u6700\u7ec8\u4e00\u81f4\u6027<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u805a\u5408\u5185\u6570\u636e\u5f3a\u4e00\u81f4\u6027\uff0c\u800c\u805a\u5408\u95f4\u6570\u636e\u6700\u7ec8\u4e00\u81f4\u6027\u3002<br \/>\n\u5728\u4e00\u6b21\u4e8b\u52a1\u4e2d\uff0c\u6700\u591a\u53ea\u80fd\u66f4\u6539\u4e00\u4e2a\u805a\u5408\u7684\u72b6\u6001\u3002\u5982\u679c\u4e00\u6b21\u4e1a\u52a1\u64cd\u4f5c\u6d89\u53ca\u591a\u4e2a\u805a\u5408\u72b6\u6001\u7684\u66f4\u6539\uff0c\u5e94\u91c7\u7528\u9886\u57df\u4e8b\u4ef6\u7684\u65b9\u5f0f\u5f02\u6b65\u4fee\u6539\u76f8\u5173\u7684\u805a\u5408\uff0c\u5b9e\u73b0\u805a\u5408\u95f4\u89e3\u8026\u3002<br \/>\n\u5728\u4e0d\u6301\u6709\u5bf9\u8c61\u5f15\u7528\u7684\u60c5\u51b5\u4e0b\uff0c\u4e0d\u80fd\u4fee\u6539\u5176\u4ed6\u805a\u5408\uff0c\u56e0\u6b64\u6211\u4eec\u53ef\u4ee5\u907f\u514d\u5728\u540c\u4e00\u4e2a\u4e8b\u52a1\u4e2d\u4fee\u6539\u591a\u4e2a\u805a\u5408\u3002\u4f46\u8fd9\u79cd\u65b9\u5f0f\u7684\u7f3a\u70b9\u5728\u4e8e\u9650\u5236\u6027\u592a\u5f3a\uff0c\u56e0\u4e3a\u5728\u9886\u57df\u6a21\u578b\u4e2d\u6211\u4eec\u603b\u9700\u8981\u5bf9\u8c61\u4e4b\u95f4\u7684\u5173\u8054\u5173\u7cfb\u6765\u5b8c\u6210\u4e00\u4e9b\u4efb\u52a1\u3002<br \/>\n\u90a3\u4e48\uff0c\u6b64\u65f6\u6211\u4eec\u5e94\u8be5\u600e\u4e48\u529e\u5462\uff1f<\/p>\n<h4><span class=\"ez-toc-section\" id=\"47_%E9%80%9A%E8%BF%87%E5%BA%94%E7%94%A8%E5%B1%82%E5%AE%9E%E7%8E%B0%E8%B7%A8%E8%81%9A%E5%90%88%E7%9A%84%E6%9C%8D%E5%8A%A1%E8%B0%83%E7%94%A8\"><\/span>4.7. \u901a\u8fc7\u5e94\u7528\u5c42\u5b9e\u73b0\u8de8\u805a\u5408\u7684\u670d\u52a1\u8c03\u7528<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u4e3a\u5b9e\u73b0\u5fae\u670d\u52a1\u5185\u805a\u5408\u4e4b\u95f4\u7684\u89e3\u8026\uff0c\u4ee5\u53ca\u672a\u6765\u4ee5\u805a\u5408\u4e3a\u5355\u4f4d\u7684\u5fae\u670d\u52a1\u7ec4\u5408\u548c\u62c6\u5206\uff0c\u5e94\u907f\u514d\u8de8\u805a\u5408\u7684\u9886\u57df\u670d\u52a1\u8c03\u7528\u548c\u8de8\u805a\u5408\u7684\u6570\u636e\u5e93\u8868\u5173\u8054\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"5_%E6%9E%B6%E6%9E%84%E8%AE%BE%E8%AE%A1\"><\/span>5. \u67b6\u6784\u8bbe\u8ba1<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"51_%E6%9C%8D%E5%8A%A1%E8%B0%83%E7%94%A8\"><\/span>5.1. \u670d\u52a1\u8c03\u7528<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674463397724.png\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674463397724.png\" alt=\"file\" \/><\/a><\/p>\n<h4><span class=\"ez-toc-section\" id=\"52_%E8%B7%A8%E5%BA%93%E5%85%B3%E8%81%94%E6%9F%A5%E8%AF%A2%E8%A7%A3%E5%86%B3%E6%96%B9%E6%A1%88\"><\/span>5.2. \u8de8\u5e93\u5173\u8054\u67e5\u8be2\u89e3\u51b3\u65b9\u6848<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ol>\n<li>\n<p>\u65b9\u6848\u4e00\u3001\u6570\u636e\u5197\u4f59<br \/>\n\u4ee5\u7a7a\u95f4\u6362\u65f6\u95f4\u3002<\/p>\n<\/li>\n<li>\n<p>\u65b9\u6848\u4e8c\u3001\u6570\u636e\u8865\u586b<br \/>\n\u7ed3\u5408Wrapper\u8bbe\u8ba1\u6a21\u5f0f\uff0c\u4e00\u822c\u5728Dao\u5c42\u5b9e\u73b0\u6570\u636e\u805a\u5408\u3002<\/p>\n<\/li>\n<\/ol>\n<h4><span class=\"ez-toc-section\" id=\"53_CQRS\"><\/span>5.3. CQRS<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>CQRS(Command Query Responsibility Segregation)\uff0c\u5373\u547d\u4ee4\u67e5\u8be2\u804c\u8d23\u5206\u79bb\uff0c\u8fd9\u91cc\u7684\u547d\u4ee4\u53ef\u4ee5\u7406\u89e3\u4e3a\u5199\u64cd\u4f5c\uff0c\u800c\u67e5\u8be2\u53ef\u4ee5\u7406\u89e3\u4e3a\u8bfb\u64cd\u4f5c\u3002\u4e0e\u201c\u57fa\u4e8e\u6570\u636e\u6a21\u578b\u7684\u8bfb\u64cd\u4f5c\u201d\u4e0d\u540c\u7684\u662f\uff0c\u5728CQRS\u4e2d\u5199\u64cd\u4f5c\u548c\u8bfb\u64cd\u4f5c\u4f7f\u7528\u4e86\u4e0d\u540c\u7684\u6570\u636e\u5e93\uff0c\u6570\u636e\u4ece\u5199\u6a21\u578b\u6570\u636e\u5e93\u540c\u6b65\u5230\u8bfb\u6a21\u578b\u6570\u636e\u5e93\uff0c\u901a\u5e38\u901a\u8fc7\u9886\u57df\u4e8b\u4ef6\u7684\u5f62\u5f0f\u540c\u6b65\u53d8\u66f4\u4fe1\u606f\u3002<\/p>\n<p><a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674438623796.png\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674438623796.png\" alt=\"file\" \/><\/a>****<\/p>\n<h4><span class=\"ez-toc-section\" id=\"54_Event_Sourcing_%E4%BA%8B%E4%BB%B6%E6%BA%AF%E6%BA%90\"><\/span>5.4. Event Sourcing \u4e8b\u4ef6\u6eaf\u6e90<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u901a\u8fc7\u4e8b\u4ef6\u6765\u7ba1\u7406\u9886\u57df\u5bf9\u8c61\u7684\u751f\u547d\u5468\u671f\uff0c\u4e8b\u4ef6\u5373\u9886\u57df\u5bf9\u8c61\u5df2\u53d1\u751f\u7684\u4e8b\u5b9e\uff0c\u53ea\u589e\u4e0d\u6539\u3002<\/p>\n<h4><span class=\"ez-toc-section\" id=\"55_%E6%95%B4%E6%B4%81%E6%9E%B6%E6%9E%84\"><\/span>5.5. \u6574\u6d01\u67b6\u6784<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><font color=red>\u901a\u8fc7\u9002\u914d\u5668\u5c42\u89e3\u8026\u4e1a\u52a1\u5c42\u4e0e\u6280\u672f\u6846\u67b6\u5c42\u7684\u4ee3\u7801\u3002<\/font><\/p>\n<p><a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674484844707.png\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674484844707.png\" alt=\"file\" \/><\/a><\/p>\n<h4><span class=\"ez-toc-section\" id=\"56_%E5%85%AD%E8%BE%B9%E5%BD%A2%E6%9E%B6%E6%9E%84\"><\/span>5.6. \u516d\u8fb9\u5f62\u67b6\u6784<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674484780901.png\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674484780901.png\" alt=\"file\" \/><\/a><\/p>\n<h4><span class=\"ez-toc-section\" id=\"57_%E6%B8%85%E6%99%B0%E6%9E%B6%E6%9E%84\"><\/span>5.7. \u6e05\u6670\u67b6\u6784<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<h3><span class=\"ez-toc-section\" id=\"6_%E5%BE%AE%E6%9C%8D%E5%8A%A1%E6%9E%B6%E6%9E%8450\"><\/span>6. \u5fae\u670d\u52a1\u67b6\u67845.0<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u6574\u4f53\u4e2d\u53f0\u67b6\u6784\uff08\u7535\u5546\u67b6\u6784\u4e2d\u53f0\uff09<br \/>\n<a href=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674268499334.png\" data-fancybox=\"images\" data-fancybox=\"images\"><img decoding=\"async\" src=\"http:\/\/dba.qishuo.xin\/wp-content\/uploads\/2023\/01\/image-1674268499334.png\" alt=\"file\" \/><\/a><\/p>\n<h3><span class=\"ez-toc-section\" id=\"7_%E4%BB%A3%E7%A0%81%E6%A8%A1%E5%9E%8B\"><\/span>7. \u4ee3\u7801\u6a21\u578b<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h3><span class=\"ez-toc-section\" id=\"%E9%99%84%E5%BD%95\"><\/span>\u9644\u5f55<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"%E9%99%84%E5%BD%95A_%E7%9B%B8%E5%85%B3%E8%81%94%E7%9A%84%E6%96%87%E7%AB%A0\"><\/span>\u9644\u5f55A. \u76f8\u5173\u8054\u7684\u6587\u7ae0<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<h4><span class=\"ez-toc-section\" id=\"%E9%99%84%E5%BD%95B_%E5%85%B6%E4%BB%96%E5%8F%82%E8%80%83\"><\/span>\u9644\u5f55B. \u5176\u4ed6\u53c2\u8003<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>\n<p><a target=\"_blank\" href=\"https:\/\/zhuanlan.zhihu.com\/p\/91525839\" title=\"DDD \u6a21\u5f0f\u4ece\u5929\u4e66\u5230\u5b9e\u8df5\">DDD \u6a21\u5f0f\u4ece\u5929\u4e66\u5230\u5b9e\u8df5<\/a><\/p>\n<\/li>\n<li>\n<p><a target=\"_blank\" href=\"https:\/\/www.cnblogs.com\/sheng-jie\/p\/7158555.html\" title=\"DDD\u7406\u8bba\u5b66\u4e60\u7cfb\u5217\uff0810\uff09-- \u805a\u5408\">DDD\u7406\u8bba\u5b66\u4e60\u7cfb\u5217\uff0810\uff09-- \u805a\u5408<\/a><\/p>\n<\/li>\n<li>\n<p><a target=\"_blank\" href=\"https:\/\/developer.aliyun.com\/article\/673662\" title=\"\u9886\u57df\u9a71\u52a8\u6a21\u578b\uff08DDD\uff09\">\u9886\u57df\u9a71\u52a8\u6a21\u578b\uff08DDD\uff09- \u7528\u5177\u4f53\u7684\u4f8b\u5b50\u6765\u63cf\u8ff0DDD<\/a><\/p>\n<\/li>\n<li>\n<p><a target=\"_blank\" href=\"https:\/\/www.cnblogs.com\/daoqidelv\/p\/7492322.html\" title=\"\u3010DDD\u3011\u4f7f\u7528\u9886\u57df\u9a71\u52a8\u8bbe\u8ba1\u601d\u60f3\u5b9e\u73b0\u4e1a\u52a1\u7cfb\u7edf\">\u3010DDD\u3011\u4f7f\u7528\u9886\u57df\u9a71\u52a8\u8bbe\u8ba1\u601d\u60f3\u5b9e\u73b0\u4e1a\u52a1\u7cfb\u7edf<\/a><\/p>\n<\/li>\n<li>\n<p><a target=\"_blank\" href=\"https:\/\/blog.csdn.net\/w1lgy\/article\/details\/111566243\" title=\"DDD\u9886\u57df\u9a71\u52a8\u8bbe\u8ba1\u56db\u3001\u5206\u5c42\u67b6\u6784\u548c\u4ee3\u7801\u6a21\u578b\">DDD\u9886\u57df\u9a71\u52a8\u8bbe\u8ba1\u56db\u3001\u5206\u5c42\u67b6\u6784\u548c\u4ee3\u7801\u6a21\u578b<\/a><\/p>\n<\/li>\n<li>\n<p><a target=\"_blank\" href=\"https:\/\/www.cnblogs.com\/ealenxie\/p\/9559781.html\" title=\"\u4e00\u4e2a\u5fae\u670d\u52a1+DDD(\u9886\u57df\u9a71\u52a8\u8bbe\u8ba1)\u7684\u4ee3\u7801\u7ed3\u6784\u793a\u4f8b\">\u4e00\u4e2a\u5fae\u670d\u52a1+DDD(\u9886\u57df\u9a71\u52a8\u8bbe\u8ba1)\u7684\u4ee3\u7801\u7ed3\u6784\u793a\u4f8b<\/a><\/p>\n<\/li>\n<li>\n<p><a target=\"_blank\" href=\"https:\/\/blog.csdn.net\/hyxhbj1\/article\/details\/123806337\" title=\"\u57fa\u4e8eDDD\uff08\u9886\u57df\u9a71\u52a8\u8bbe\u8ba1\uff09\u7684\u5fae\u670d\u52a1\u8bbe\u8ba1\u5b9e\u4f8b\">\u57fa\u4e8eDDD\uff08\u9886\u57df\u9a71\u52a8\u8bbe\u8ba1\uff09\u7684\u5fae\u670d\u52a1\u8bbe\u8ba1\u5b9e\u4f8b<\/a><\/p>\n<\/li>\n<li>\n<p><a target=\"_blank\" href=\"https:\/\/www.cnblogs.com\/laozhang-is-phi\/p\/9806335.html\" title=\"\u4ece\u58f9\u5f00\u59cb\u5fae\u670d\u52a1 [ DDD ] \u4e4b\u4e00 \u2551 D3\u6a21\u5f0f\u8bbe\u8ba1\u521d\u63a2\">\u4ece\u58f9\u5f00\u59cb\u5fae\u670d\u52a1 [ DDD ] \u4e4b\u4e00 \u2551 D3\u6a21\u5f0f\u8bbe\u8ba1\u521d\u63a2<\/a><\/p>\n<\/li>\n<li>\n<p><a target=\"_blank\" href=\"https:\/\/blog.csdn.net\/hemin1003\/article\/details\/100572480\" title=\"\u5fae\u670d\u52a1\u67b6\u6784\u5b9e\u6218 - \u6211\u7684\u7ecf\u9a8c\u5206\u4eab\u603b\u7ed32017~2020\uff08\u7cfb\u7edf\u67b6\u6784\u5e08\uff09\u67b6\u6784\u6f14\u8fdb\u8fc7\u7a0b-\u4ece\u4fe1\u606f\u6d41\u67b6\u6784\u5230\u7535\u5546\u4e2d\u53f0\u67b6\u6784\">\u5fae\u670d\u52a1\u67b6\u6784\u5b9e\u6218 - \u6211\u7684\u7ecf\u9a8c\u5206\u4eab\u603b\u7ed32017~2020\uff08\u7cfb\u7edf\u67b6\u6784\u5e08\uff09\u67b6\u6784\u6f14\u8fdb\u8fc7\u7a0b-\u4ece\u4fe1\u606f\u6d41\u67b6\u6784\u5230\u7535\u5546\u4e2d\u53f0\u67b6\u6784<\/a><\/p>\n<\/li>\n<li>\n<p><a target=\"_blank\" href=\"http:\/\/www.blogjava.net\/johnnylzb\/archive\/2010\/05\/15\/321057.html\" title=\"\u9886\u57df\u9a71\u52a8\u8bbe\u8ba1\u7cfb\u5217\u6587\u7ae0\uff081\uff09\u2014\u2014\u901a\u8fc7\u73b0\u5b9e\u4f8b\u5b50\u663e\u793a\u9886\u57df\u9a71\u52a8\u8bbe\u8ba1\u7684\u5a01\u529b\">\u9886\u57df\u9a71\u52a8\u8bbe\u8ba1\u7cfb\u5217\u6587\u7ae0\uff081\uff09\u2014\u2014\u901a\u8fc7\u73b0\u5b9e\u4f8b\u5b50\u663e\u793a\u9886\u57df\u9a71\u52a8\u8bbe\u8ba1\u7684\u5a01\u529b<\/a><\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>1. \u4ec0\u4e48\u662fDDD 2004\u5e74Eric Evans&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[178],"tags":[252],"class_list":["post-2688","post","type-post","status-publish","format-standard","hentry","category-java","tag-ddd"],"_links":{"self":[{"href":"http:\/\/dba.qishuo.xin\/index.php?rest_route=\/wp\/v2\/posts\/2688","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/dba.qishuo.xin\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/dba.qishuo.xin\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/dba.qishuo.xin\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/dba.qishuo.xin\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2688"}],"version-history":[{"count":135,"href":"http:\/\/dba.qishuo.xin\/index.php?rest_route=\/wp\/v2\/posts\/2688\/revisions"}],"predecessor-version":[{"id":2854,"href":"http:\/\/dba.qishuo.xin\/index.php?rest_route=\/wp\/v2\/posts\/2688\/revisions\/2854"}],"wp:attachment":[{"href":"http:\/\/dba.qishuo.xin\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2688"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/dba.qishuo.xin\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2688"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/dba.qishuo.xin\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2688"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}