{"id":193,"date":"2026-07-26T21:14:49","date_gmt":"2026-07-26T13:14:49","guid":{"rendered":"https:\/\/fsdata.site\/?p=193"},"modified":"2026-07-26T22:30:29","modified_gmt":"2026-07-26T14:30:29","slug":"java-21-record-dto-best-practice-2","status":"publish","type":"post","link":"https:\/\/fsdata.site\/?p=193","title":{"rendered":"Java 21 Record \u6df1\u5165\u5b9e\u6218\uff1a\u66ff\u4ee3 DTO \u7684\u4f18\u96c5\u65b9\u5f0f"},"content":{"rendered":"<h2>\u4e3a\u4ec0\u4e48\u9700\u8981 Record\uff1f<\/h2>\n<p>Java \u540e\u7aef\u5f00\u53d1\u4e2d\uff0cDTO \u662f\u6700\u5e38\u7528\u7684\u6a21\u5f0f\u4e4b\u4e00\uff0c\u4f46\u4e4b\u524d\u7684\u5199\u6cd5\u9700\u8981\u5927\u91cf\u6837\u677f\u4ee3\u7801\u3002<a target=\"_blank\" rel=\"noopener\" href=\"https:\/\/fsdata.site\/2026\u5e74-java\u540e\u7aef\u5f00\u53d1\u5b8c\u6574\u6280\u672f\u6808\u6307\u5357\/\">Java \u540e\u7aef\u6280\u672f\u6808\u6307\u5357<\/a>\u4e2d\u5c31\u5f3a\u8c03\u4e86\u8fd9\u79cd\u75db\u70b9\u3002<\/p>\n<h2>Record vs \u4f20\u7edf DTO<\/h2>\n<pre><code class=\"language-java\">\/\/ \u65e7\u5199\u6cd5\\npublic class UserDTO { private final String name; public UserDTO(String n) { this.name = n; } }<\/code><\/pre>\n<pre><code class=\"language-java\">\/\/ Record \u5199\u6cd5\\npublic record UserDTO(String name) {} \/\/ \u5c31\u8fd9\u4e48\u4e00\u884c\uff01<\/code><\/pre>\n<h2>\u6ce8\u610f\u4e8b\u9879<\/h2>\n<ol>\n<li><strong>\u4e0d\u53ef\u53d8<\/strong>\uff1a\u5b57\u6bb5\u5929\u7136 final\uff0c\u4e0d\u80fd\u4fee\u6539<\/li>\n<li><strong>JSON \u5e8f\u5217\u5316<\/strong>\uff1aJackson \u9ed8\u8ba4\u652f\u6301 Record<\/li>\n<\/ol>\n<p>\u8fd9\u5728 <a target=\"_blank\" rel=\"noopener\" href=\"https:\/\/fsdata.site\/springboot-global-exception-handler\/\">Spring Boot \u5168\u5c40\u5f02\u5e38\u5904\u7406<\/a>\u4e2d\u5c24\u5176\u6709\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java 21 \u7684 Record \u7c7b\u578b\u4e0d\u53ea\u662f\u7b80\u5316\u8bed\u6cd5\u7cd6\uff01\u6df1\u5165\u5b57\u8282\u7801\u5c42\u9762\u539f\u7406\u3001\u5e8f\u5217\u5316\u884c\u4e3a\u548c\u4e0e DTO \u7684\u6700\u4f73\u5b9e\u8df5\u7ed3\u5408\u3002<\/p>\n","protected":false},"author":2,"featured_media":208,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[23,27,29,37,67],"class_list":["post-193","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-java-dev","tag-dto","tag-java-21","tag-java","tag-record","tag-67"],"_links":{"self":[{"href":"https:\/\/fsdata.site\/index.php?rest_route=\/wp\/v2\/posts\/193","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fsdata.site\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fsdata.site\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fsdata.site\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/fsdata.site\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=193"}],"version-history":[{"count":4,"href":"https:\/\/fsdata.site\/index.php?rest_route=\/wp\/v2\/posts\/193\/revisions"}],"predecessor-version":[{"id":244,"href":"https:\/\/fsdata.site\/index.php?rest_route=\/wp\/v2\/posts\/193\/revisions\/244"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/fsdata.site\/index.php?rest_route=\/wp\/v2\/media\/208"}],"wp:attachment":[{"href":"https:\/\/fsdata.site\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=193"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fsdata.site\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=193"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fsdata.site\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=193"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}