{"id":14207,"date":"2023-12-04T00:49:23","date_gmt":"2023-12-03T16:49:23","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=14207"},"modified":"2023-12-04T00:50:10","modified_gmt":"2023-12-03T16:50:10","slug":"mybatis-de-mapper-jie-kou-diao-yong-shi-you-na-xie","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/04\/mybatis-de-mapper-jie-kou-diao-yong-shi-you-na-xie\/","title":{"rendered":"MyBatis \u7684 mapper \u63a5\u53e3\u8c03\u7528\u65f6\u6709\u54ea\u4e9b\u8981\u6c42\uff1f"},"content":{"rendered":"

\u5728 MyBatis \u4e2d\u8c03\u7528 Mapper \u63a5\u53e3\u65f6\uff0c\u6709\u4e00\u4e9b\u8981\u6c42\u548c\u7ea6\u5b9a\uff1a<\/p>\n

    \n
  1. \n\u65b9\u6cd5\u547d\u540d\u4e0e\u6620\u5c04\u6587\u4ef6\u5bf9\u5e94\uff1a<\/strong> Mapper \u63a5\u53e3\u7684\u65b9\u6cd5\u540d\u5e94\u8be5\u4e0e\u6620\u5c04\u6587\u4ef6\u4e2d SQL \u7684 id \u5bf9\u5e94\uff0c\u8fd9\u6837 MyBatis \u624d\u80fd\u6b63\u786e\u627e\u5230\u5bf9\u5e94\u7684 SQL \u8bed\u53e5\u6267\u884c\u3002\n<\/li>\n
  2. \n\u65b9\u6cd5\u53c2\u6570\u4e0e SQL \u53c2\u6570\u5bf9\u5e94\uff1a<\/strong> Mapper \u63a5\u53e3\u7684\u65b9\u6cd5\u53c2\u6570\u9700\u8981\u4e0e SQL \u8bed\u53e5\u4e2d\u7684\u53c2\u6570\u4e00\u4e00\u5bf9\u5e94\u3002\u5982\u679c\u53c2\u6570\u8f83\u591a\uff0c\u53ef\u4ee5\u4f7f\u7528 @Param<\/code> \u6ce8\u89e3\u7ed9\u53c2\u6570\u8d77\u522b\u540d\uff0c\u4fdd\u8bc1\u53c2\u6570\u4e0e SQL \u4e2d\u7684\u53c2\u6570\u540d\u5bf9\u5e94\u3002<\/p>\n
    User selectUserById(@Param("id") Long id);\n<\/code><\/pre>\n<\/li>\n
  3. \n\u8fd4\u56de\u7c7b\u578b\u4e0e SQL \u67e5\u8be2\u7ed3\u679c\u5bf9\u5e94\uff1a<\/strong> Mapper \u63a5\u53e3\u7684\u65b9\u6cd5\u8fd4\u56de\u7c7b\u578b\u5e94\u4e0e SQL \u67e5\u8be2\u7ed3\u679c\u5bf9\u5e94\u3002\u53ef\u4ee5\u662f\u5b9e\u4f53\u7c7b\u3001Map\u3001\u57fa\u672c\u6570\u636e\u7c7b\u578b\u7b49\uff0c\u786e\u4fdd\u67e5\u8be2\u7ed3\u679c\u80fd\u591f\u6b63\u786e\u6620\u5c04\u5230\u8fd4\u56de\u7c7b\u578b\u3002\n<\/li>\n
  4. \n\u6620\u5c04\u914d\u7f6e\u6b63\u786e\uff1a<\/strong> \u5728 XML \u6620\u5c04\u6587\u4ef6\u4e2d\u6b63\u786e\u914d\u7f6e\u4e86\u8be5 Mapper \u63a5\u53e3\u5bf9\u5e94\u7684 SQL \u8bed\u53e5\uff0c\u5e76\u4e14 ResultMap\u3001ResultType \u914d\u7f6e\u6b63\u786e\u3002\n<\/li>\n
  5. \n\u6ce8\u89e3\u6216 XML \u65b9\u5f0f\u914d\u7f6e\uff1a<\/strong> MyBatis \u652f\u6301\u6ce8\u89e3\u548c XML \u4e24\u79cd\u65b9\u5f0f\u914d\u7f6e\u6620\u5c04\u5173\u7cfb\uff0c\u8c03\u7528 Mapper \u63a5\u53e3\u65f6\u9700\u8981\u786e\u4fdd\u91c7\u7528\u7684\u914d\u7f6e\u65b9\u5f0f\u6b63\u786e\u5339\u914d\u3002\n<\/li>\n
  6. \nSQLSessionFactory \u548c MapperScannerConfigurer \u914d\u7f6e\u6b63\u786e\uff1a<\/strong> \u5728\u6574\u5408 Spring \u7684\u60c5\u51b5\u4e0b\uff0c\u9700\u8981\u6b63\u786e\u914d\u7f6e SQLSessionFactory \u548c MapperScannerConfigurer\uff0c\u786e\u4fdd\u80fd\u591f\u626b\u63cf\u5230 Mapper \u63a5\u53e3\u5e76\u4e0e\u5bf9\u5e94\u7684 XML \u6620\u5c04\u6587\u4ef6\u5efa\u7acb\u6620\u5c04\u5173\u7cfb\u3002\n<\/li>\n<\/ol>\n
    \u8fd9\u4e9b\u8981\u6c42\u548c\u7ea6\u5b9a\u80fd\u591f\u5e2e\u52a9 MyBatis \u6b63\u786e\u8bc6\u522b\u548c\u6267\u884c Mapper \u63a5\u53e3\u4e2d\u5b9a\u4e49\u7684\u65b9\u6cd5\uff0c\u5e76\u4e0e\u5bf9\u5e94\u7684 SQL \u6620\u5c04\u6587\u4ef6\u8fdb\u884c\u6b63\u786e\u5339\u914d\uff0c\u786e\u4fdd\u6570\u636e\u5e93\u64cd\u4f5c\u80fd\u591f\u987a\u5229\u6267\u884c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u5728 MyBatis \u4e2d\u8c03\u7528 Mapper \u63a5\u53e3\u65f6\uff0c\u6709\u4e00\u4e9b\u8981\u6c42\u548c\u7ea6\u5b9a\uff1a \u65b9\u6cd5\u547d\u540d\u4e0e\u6620\u5c04\u6587\u4ef6\u5bf9\u5e94\uff1a Mapper  […]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[113],"tags":[],"class_list":["post-14207","post","type-post","status-publish","format-standard","hentry","category-mybatis"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/14207","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=14207"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/14207\/revisions"}],"predecessor-version":[{"id":14208,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/14207\/revisions\/14208"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=14207"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=14207"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=14207"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}