{"id":53917,"date":"2025-08-12T19:29:37","date_gmt":"2025-08-12T11:29:37","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/53917.html"},"modified":"2025-08-12T19:29:37","modified_gmt":"2025-08-12T11:29:37","slug":"mybatis-plus-%e8%87%aa%e5%8a%a8%e5%a1%ab%e5%85%85%e5%8a%9f%e8%83%bd%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/53917.html","title":{"rendered":"MyBatis-Plus \u81ea\u52a8\u586b\u5145\u529f\u80fd\u8be6\u89e3"},"content":{"rendered":"<p>\u5728\u65e5\u5e38\u5f00\u53d1\u4e2d&#xff0c;\u6211\u4eec\u7ecf\u5e38\u9700\u8981\u4e3a\u5b9e\u4f53\u7c7b\u7684\u67d0\u4e9b\u5b57\u6bb5&#xff08;\u5982\u521b\u5efa\u65f6\u95f4\u3001\u903b\u8f91\u5220\u9664\u6807\u8bb0&#xff09;\u8bbe\u7f6e\u9ed8\u8ba4\u503c\u3002\u5982\u679c\u6bcf\u6b21\u64cd\u4f5c\u90fd\u624b\u52a8\u8d4b\u503c&#xff0c;\u4e0d\u4ec5\u7e41\u7410\u8fd8\u5bb9\u6613\u9057\u6f0f\u3002MyBatis-Plus \u63d0\u4f9b\u7684\u81ea\u52a8\u586b\u5145\u529f\u80fd\u5b8c\u7f8e\u89e3\u51b3\u4e86\u8fd9\u4e2a\u95ee\u9898\u3002<\/p>\n<h3>\u4e00\u3001\u81ea\u52a8\u586b\u5145\u662f\u4ec0\u4e48&#xff1f;\u4e3a\u4ec0\u4e48\u9700\u8981\u5b83&#xff1f;<\/h3>\n<p>\u81ea\u52a8\u586b\u5145\u662f MyBatis-Plus \u63d0\u4f9b\u7684\u5b57\u6bb5\u81ea\u52a8\u8d4b\u503c\u673a\u5236&#xff0c;\u6838\u5fc3\u4f5c\u7528\u662f&#xff1a;\u5728\u6267\u884c\u63d2\u5165&#xff08;INSERT&#xff09;\u6216\u66f4\u65b0&#xff08;UPDATE&#xff09;\u64cd\u4f5c\u65f6&#xff0c;\u6839\u636e\u9884\u8bbe\u89c4\u5219\u81ea\u52a8\u4e3a\u6307\u5b9a\u5b57\u6bb5\u8d4b\u503c&#xff0c;\u65e0\u9700\u624b\u52a8\u8c03\u7528 setXxx() \u65b9\u6cd5\u3002<\/p>\n<p>\u5e38\u89c1\u5e94\u7528\u573a\u666f&#xff1a;<\/p>\n<ul>\n<li>\u903b\u8f91\u5220\u9664\u6807\u8bb0&#xff08;deleted&#xff09;&#xff1a;\u63d2\u5165\u65f6\u9ed8\u8ba4\u503c\u4e3a 0&#xff08;\u672a\u5220\u9664&#xff09;<\/li>\n<li>\u521b\u5efa\u65f6\u95f4&#xff08;createTime&#xff09;&#xff1a;\u63d2\u5165\u65f6\u81ea\u52a8\u586b\u5145\u5f53\u524d\u65f6\u95f4<\/li>\n<li>\u66f4\u65b0\u65f6\u95f4&#xff08;updateTime&#xff09;&#xff1a;\u63d2\u5165\u548c\u66f4\u65b0\u65f6\u5747\u586b\u5145\u5f53\u524d\u65f6\u95f4<\/li>\n<\/ul>\n<p>\u4f7f\u7528\u81ea\u52a8\u586b\u5145\u80fd\u51cf\u5c11\u91cd\u590d\u4ee3\u7801&#xff0c;\u907f\u514d\u4eba\u4e3a\u758f\u5ffd\u5bfc\u81f4\u7684\u5b57\u6bb5\u503c\u9519\u8bef&#xff0c;\u63d0\u9ad8\u5f00\u53d1\u6548\u7387\u3002<\/p>\n<h3>\u4e8c\u3001\u5b9e\u73b0\u81ea\u52a8\u586b\u5145\u7684\u6838\u5fc3\u6b65\u9aa4<\/h3>\n<p>\u5b9e\u73b0\u81ea\u52a8\u586b\u5145\u9700\u8981\u4e24\u6b65&#xff1a;\u6807\u8bb0\u9700\u8981\u586b\u5145\u7684\u5b57\u6bb5 \u548c \u5b9a\u4e49\u586b\u5145\u89c4\u5219\u3002\u4e0b\u9762\u4ee5\u903b\u8f91\u5220\u9664\u5b57\u6bb5 deleted \u4e3a\u4f8b&#xff0c;\u8be6\u89e3\u5177\u4f53\u5b9e\u73b0\u3002<\/p>\n<h4>\u6b65\u9aa4 1&#xff1a;\u5728\u5b9e\u4f53\u7c7b\u4e2d\u6807\u8bb0\u81ea\u52a8\u586b\u5145\u5b57\u6bb5<\/h4>\n<p>\u901a\u8fc7 &#064;TableField \u6ce8\u89e3\u6307\u5b9a\u5b57\u6bb5\u7684\u586b\u5145\u7b56\u7565&#xff08;\u4f55\u65f6\u9700\u8981\u81ea\u52a8\u586b\u5145&#xff09;&#xff1a;<\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">com<span class=\"token punctuation\">.<\/span>baomidou<span class=\"token punctuation\">.<\/span>mybatisplus<span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span><\/span><span class=\"token operator\">*<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">lombok<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Data<\/span><\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token annotation punctuation\">&#064;Data<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Student<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u4e3b\u952e<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;TableId<\/span><span class=\"token punctuation\">(<\/span>type <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">IdType<\/span><span class=\"token punctuation\">.<\/span><span class=\"token constant\">AUTO<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">Long<\/span> id<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5b66\u751f\u59d3\u540d<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">String<\/span> name<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u903b\u8f91\u5220\u9664\u6807\u8bb0&#xff08;0-\u672a\u5220\u9664&#xff0c;1-\u5df2\u5220\u9664&#xff09;<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;TableLogic<\/span>  <span class=\"token comment\">\/\/ \u6807\u8bb0\u4e3a\u903b\u8f91\u5220\u9664\u5b57\u6bb5&#xff08;\u975e\u5fc5\u9700&#xff0c;\u89c6\u4e1a\u52a1\u800c\u5b9a&#xff09;<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;TableField<\/span><span class=\"token punctuation\">(<\/span>fill <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">FieldFill<\/span><span class=\"token punctuation\">.<\/span><span class=\"token constant\">INSERT<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\">\/\/ \u63d2\u5165\u65f6\u81ea\u52a8\u586b\u5145<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">Integer<\/span> deleted<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h5>\u6ce8\u89e3\u8bf4\u660e&#xff1a;<\/h5>\n<ul>\n<li>&#064;TableField(fill &#061; FieldFill.INSERT)&#xff1a;\u6838\u5fc3\u6ce8\u89e3&#xff0c;fill \u5c5e\u6027\u6307\u5b9a\u586b\u5145\u65f6\u673a&#xff1a;\n<ul>\n<li>FieldFill.DEFAULT&#xff1a;\u9ed8\u8ba4\u4e0d\u586b\u5145&#xff08;\u9ed8\u8ba4\u503c&#xff09;<\/li>\n<li>FieldFill.INSERT&#xff1a;\u4ec5\u63d2\u5165\u65f6\u586b\u5145<\/li>\n<li>FieldFill.UPDATE&#xff1a;\u4ec5\u66f4\u65b0\u65f6\u586b\u5145<\/li>\n<li>FieldFill.INSERT_UPDATE&#xff1a;\u63d2\u5165\u548c\u66f4\u65b0\u65f6\u5747\u586b\u5145<\/li>\n<\/ul>\n<\/li>\n<li>&#064;TableLogic&#xff1a;\u53ef\u9009\u6ce8\u89e3&#xff0c;\u7528\u4e8e\u6807\u8bb0\u903b\u8f91\u5220\u9664\u5b57\u6bb5&#xff08;\u4e0e\u81ea\u52a8\u586b\u5145\u914d\u5408\u4f7f\u7528&#xff0c;\u5b9e\u73b0\u903b\u8f91\u5220\u9664\u529f\u80fd&#xff09;\u3002<\/li>\n<\/ul>\n<h4>\u6b65\u9aa4 2&#xff1a;\u81ea\u5b9a\u4e49\u586b\u5145\u89c4\u5219&#xff08;\u5b9e\u73b0 MetaObjectHandler \u63a5\u53e3&#xff09;<\/h4>\n<p>\u521b\u5efa\u4e00\u4e2a\u7c7b\u5b9e\u73b0 MetaObjectHandler \u63a5\u53e3&#xff0c;\u5e76\u91cd\u5199\u63d2\u5165\u548c\u66f4\u65b0\u7684\u586b\u5145\u65b9\u6cd5&#xff0c;\u5b9a\u4e49\u5177\u4f53\u586b\u5145\u503c&#xff1a;<\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">com<span class=\"token punctuation\">.<\/span>baomidou<span class=\"token punctuation\">.<\/span>mybatisplus<span class=\"token punctuation\">.<\/span>core<span class=\"token punctuation\">.<\/span>handlers<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">MetaObjectHandler<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>apache<span class=\"token punctuation\">.<\/span>ibatis<span class=\"token punctuation\">.<\/span>reflection<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">MetaObject<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>stereotype<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Component<\/span><\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u4ea4\u7ed9 Spring \u7ba1\u7406&#xff0c;\u8ba9 MyBatis-Plus \u80fd\u626b\u63cf\u5230<\/span><br \/>\n<span class=\"token annotation punctuation\">&#064;Component<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">MyMetaObjectHandler<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">MetaObjectHandler<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token comment\">\/**<br \/>\n     * \u63d2\u5165\u64cd\u4f5c\u65f6\u7684\u586b\u5145\u903b\u8f91<br \/>\n     *\/<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">insertFill<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">MetaObject<\/span> metaObject<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u4e3a\u5b57\u6bb5\u540d &#034;deleted&#034; \u586b\u5145\u503c 0<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u53c2\u65701&#xff1a;\u5b57\u6bb5\u540d&#xff08;\u9700\u4e0e\u5b9e\u4f53\u7c7b\u5c5e\u6027\u540d\u4e00\u81f4&#xff09;<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u53c2\u65702&#xff1a;\u586b\u5145\u503c<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u53c2\u65703&#xff1a;\u5143\u5bf9\u8c61&#xff08;\u56fa\u5b9a\u53c2\u6570&#xff09;<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">setFieldValByName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;deleted&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> metaObject<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u6269\u5c55&#xff1a;\u63d2\u5165\u65f6\u81ea\u52a8\u586b\u5145\u521b\u5efa\u65f6\u95f4<\/span><br \/>\n        <span class=\"token comment\">\/\/ this.setFieldValByName(&#034;createTime&#034;, new Date(), metaObject);<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/**<br \/>\n     * \u66f4\u65b0\u64cd\u4f5c\u65f6\u7684\u586b\u5145\u903b\u8f91&#xff08;\u672c\u4f8b\u6682\u4e0d\u5b9e\u73b0&#xff09;<br \/>\n     *\/<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">updateFill<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">MetaObject<\/span> metaObject<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u793a\u4f8b&#xff1a;\u66f4\u65b0\u65f6\u81ea\u52a8\u586b\u5145\u66f4\u65b0\u65f6\u95f4<\/span><br \/>\n        <span class=\"token comment\">\/\/ this.setFieldValByName(&#034;updateTime&#034;, new Date(), metaObject);<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h5>\u5173\u952e\u8bf4\u660e&#xff1a;<\/h5>\n<ul>\n<li>\u7c7b\u4e0a\u5fc5\u987b\u6dfb\u52a0 &#064;Component \u6ce8\u89e3&#xff0c;\u5426\u5219 MyBatis-Plus \u65e0\u6cd5\u8bc6\u522b\u8be5\u586b\u5145\u89c4\u5219\u3002<\/li>\n<li>insertFill \u65b9\u6cd5&#xff1a;\u5b9a\u4e49\u63d2\u5165\u65f6\u7684\u586b\u5145\u503c&#xff0c;\u672c\u4f8b\u4e2d\u4e3a deleted \u5b57\u6bb5\u586b\u5145 0&#xff08;\u672a\u5220\u9664&#xff09;\u3002<\/li>\n<li>updateFill \u65b9\u6cd5&#xff1a;\u5b9a\u4e49\u66f4\u65b0\u65f6\u7684\u586b\u5145\u503c&#xff0c;\u53ef\u6839\u636e\u4e1a\u52a1\u9700\u6c42\u6dfb\u52a0\u903b\u8f91&#xff08;\u5982\u81ea\u52a8\u66f4\u65b0\u65f6\u95f4&#xff09;\u3002<\/li>\n<\/ul>\n<h4>\u6b65\u9aa4 3&#xff1a;\u6d4b\u8bd5\u81ea\u52a8\u586b\u5145\u6548\u679c<\/h4>\n<p>\u7f16\u5199\u6d4b\u8bd5\u4ee3\u7801&#xff0c;\u6267\u884c\u63d2\u5165\u64cd\u4f5c&#xff0c;\u9a8c\u8bc1 deleted \u5b57\u6bb5\u662f\u5426\u81ea\u52a8\u586b\u5145&#xff1a;<\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>junit<span class=\"token punctuation\">.<\/span>jupiter<span class=\"token punctuation\">.<\/span>api<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Test<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>beans<span class=\"token punctuation\">.<\/span>factory<span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Autowired<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>boot<span class=\"token punctuation\">.<\/span>test<span class=\"token punctuation\">.<\/span>context<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">SpringBootTest<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">com<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>mapper<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">StudentMapper<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token import\"><span class=\"token namespace\">com<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>entity<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Student<\/span><\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token annotation punctuation\">&#064;SpringBootTest<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">StudentTest<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Autowired<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">StudentMapper<\/span> studentMapper<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Test<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">testInsert<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u521b\u5efa\u5b66\u751f\u5bf9\u8c61&#xff0c;\u4e0d\u624b\u52a8\u8bbe\u7f6e deleted \u5b57\u6bb5<\/span><br \/>\n        <span class=\"token class-name\">Student<\/span> student <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Student<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        student<span class=\"token punctuation\">.<\/span><span class=\"token function\">setName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5f20\u4e09&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u4ec5\u8bbe\u7f6e\u59d3\u540d<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u6267\u884c\u63d2\u5165\u64cd\u4f5c<\/span><br \/>\n        <span class=\"token keyword\">int<\/span> rows <span class=\"token operator\">&#061;<\/span> studentMapper<span class=\"token punctuation\">.<\/span><span class=\"token function\">insert<\/span><span class=\"token punctuation\">(<\/span>student<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u63d2\u5165\u6210\u529f&#xff0c;\u5f71\u54cd\u884c\u6570&#xff1a;&#034;<\/span> <span class=\"token operator\">&#043;<\/span> rows<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h5>\u6d4b\u8bd5\u7ed3\u679c&#xff1a;<\/h5>\n<p>\u67e5\u770b\u6570\u636e\u5e93\u4f1a\u53d1\u73b0&#xff0c;\u65b0\u63d2\u5165\u7684\u8bb0\u5f55\u4e2d deleted \u5b57\u6bb5\u503c\u4e3a 0&#xff0c;\u8bf4\u660e\u81ea\u52a8\u586b\u5145\u751f\u6548\u2014\u2014\u5373\u4f7f\u6ca1\u6709\u624b\u52a8\u8c03\u7528 student.setDeleted(0)&#xff0c;\u7a0b\u5e8f\u4e5f\u4f1a\u6309\u9884\u8bbe\u89c4\u5219\u8d4b\u503c\u3002<\/p>\n<h3>\u4e09\u3001\u6269\u5c55\u573a\u666f&#xff1a;\u81ea\u52a8\u586b\u5145\u65f6\u95f4\u5b57\u6bb5<\/h3>\n<p>\u9664\u4e86\u903b\u8f91\u5220\u9664\u6807\u8bb0&#xff0c;\u81ea\u52a8\u586b\u5145\u6700\u5e38\u7528\u7684\u573a\u666f\u662f\u65f6\u95f4\u5b57\u6bb5&#xff08;\u521b\u5efa\u65f6\u95f4\u3001\u66f4\u65b0\u65f6\u95f4&#xff09;\u3002\u5b9e\u73b0\u65b9\u5f0f\u5982\u4e0b&#xff1a;<\/p>\n<h4>1. \u5b9e\u4f53\u7c7b\u6dfb\u52a0\u65f6\u95f4\u5b57\u6bb5\u5e76\u6807\u8bb0\u586b\u5145\u7b56\u7565<\/h4>\n<p><span class=\"token annotation punctuation\">&#064;Data<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Student<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5176\u4ed6\u5b57\u6bb5&#8230;<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;TableField<\/span><span class=\"token punctuation\">(<\/span>fill <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">FieldFill<\/span><span class=\"token punctuation\">.<\/span><span class=\"token constant\">INSERT<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\">\/\/ \u4ec5\u63d2\u5165\u65f6\u586b\u5145<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">LocalDateTime<\/span> createTime<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;TableField<\/span><span class=\"token punctuation\">(<\/span>fill <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">FieldFill<\/span><span class=\"token punctuation\">.<\/span><span class=\"token constant\">INSERT_UPDATE<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\">\/\/ \u63d2\u5165\u548c\u66f4\u65b0\u65f6\u5747\u586b\u5145<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">LocalDateTime<\/span> updateTime<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>2. \u5728\u586b\u5145\u7c7b\u4e2d\u6dfb\u52a0\u65f6\u95f4\u586b\u5145\u903b\u8f91<\/h4>\n<p><span class=\"token annotation punctuation\">&#064;Component<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">MyMetaObjectHandler<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">MetaObjectHandler<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">insertFill<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">MetaObject<\/span> metaObject<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u586b\u5145\u5220\u9664\u6807\u8bb0<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">setFieldValByName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;deleted&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> metaObject<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u586b\u5145\u521b\u5efa\u65f6\u95f4&#xff08;\u5f53\u524d\u65f6\u95f4&#xff09;<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">setFieldValByName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;createTime&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">LocalDateTime<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">now<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> metaObject<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u63d2\u5165\u65f6\u540c\u65f6\u586b\u5145\u66f4\u65b0\u65f6\u95f4<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">setFieldValByName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;updateTime&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">LocalDateTime<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">now<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> metaObject<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">updateFill<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">MetaObject<\/span> metaObject<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u66f4\u65b0\u65f6\u586b\u5145\u66f4\u65b0\u65f6\u95f4&#xff08;\u5f53\u524d\u65f6\u95f4&#xff09;<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">setFieldValByName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;updateTime&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">LocalDateTime<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">now<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> metaObject<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u6b64\u65f6&#xff0c;\u6267\u884c\u63d2\u5165\u6216\u66f4\u65b0\u64cd\u4f5c\u65f6&#xff0c;createTime \u548c updateTime \u4f1a\u81ea\u52a8\u586b\u5145\u4e3a\u5f53\u524d\u65f6\u95f4&#xff0c;\u65e0\u9700\u624b\u52a8\u8bbe\u7f6e\u3002<\/p>\n<h3>\u603b\u7ed3<\/h3>\n<p>MyBatis-Plus \u7684\u81ea\u52a8\u586b\u5145\u529f\u80fd\u901a\u8fc7 &#064;TableField \u6ce8\u89e3\u6807\u8bb0\u5b57\u6bb5 \u548c MetaObjectHandler 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property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"MyBatis-Plus \u81ea\u52a8\u586b\u5145\u529f\u80fd\u8be6\u89e3 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb295\u6b21\uff0c\u70b9\u8d5e5\u6b21\uff0c\u6536\u85cf5\u6b21\u3002\u521b\u5efa\u4e00\u4e2a\u7c7b\u5b9e\u73b0\/\/ \u4ea4\u7ed9 Spring \u7ba1\u7406\uff0c\u8ba9 MyBatis-Plus \u80fd\u626b\u63cf\u5230 @Component public class MyMetaObjectHandler implements MetaObjectHandler {\/*** \u63d2\u5165\u64cd\u4f5c\u65f6\u7684\u586b\u5145\u903b\u8f91\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/53917.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2025-08-12T11:29:37+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" 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