{"id":5336,"date":"2022-04-05T10:43:06","date_gmt":"2022-04-05T02:43:06","guid":{"rendered":"https:\/\/www.xttblog.com\/?p=5336"},"modified":"2022-04-05T10:43:06","modified_gmt":"2022-04-05T02:43:06","slug":"mybatis-plus-%e9%80%9a%e7%94%a8-iservice-%e4%bd%bf%e7%94%a8%e4%bb%8b%e7%bb%8d%e4%b8%8e%e7%ae%80%e5%8d%95%e4%bd%bf%e7%94%a8%e6%95%99%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/www.xttblog.com\/?p=5336","title":{"rendered":"MyBatis-Plus \u901a\u7528 IService \u4f7f\u7528\u4ecb\u7ecd\u4e0e\u7b80\u5355\u4f7f\u7528\u6559\u7a0b"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">MyBatis-Plus \u901a\u7528 IService \u4f7f\u7528\u4ecb\u7ecd\u4e0e\u7b80\u5355\u4f7f\u7528\u6559\u7a0b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e00\u3001\u5f15\u8a00<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">MP \u9664\u4e86\u901a\u7528\u7684 Mapper \u8fd8\u662f\u901a\u7528\u7684 Servcie \u5c42\uff0c\u8fd9\u4e5f\u51cf\u5c11\u4e86\u76f8\u5bf9\u5e94\u7684\u4ee3\u7801\u5de5\u4f5c\u91cf\uff0c\u628a\u901a\u7528\u7684\u63a5\u53e3\u63d0\u53d6\u5230\u516c\u5171\u3002\u5176\u5b9e\u6309\u7167 MP \u7684\u8fd9\u79cd\u601d\u60f3\uff0c\u53ef\u4ee5\u81ea\u5df1\u4e5f\u5b9e\u73b0\u4e00\u4e9b\u901a\u7528\u7684 Controller\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4eca\u5929\u662f\u653e\u5047\u65f6\u95f4\uff0c\u4f5c\u4e3a\u4e00\u540d\u7801\u519c\u6765\u8bf4\uff0c\u8fd9\u91cc\u5c0f\u7f16\u63d0\u9192\u5927\u5bb6\u6709\u7a7a\u8fd8\u662f\u591a\u51fa\u53bb\u8fd0\u52a8\u4e00\u4e0b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u751f\u547d\u5728\u4e8e\u8fd0\u52a8\uff0c\u751f\u547d\u8bda\u53ef\u8d35\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/cdn.jsdelivr.net\/gh\/xmt1139057136\/xttblog\/2022\/03\/iservice.jpg\" alt=\"\" \/><figcaption>MyBatisPlus\u613f\u666f<\/figcaption><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8c\u3001IService \u4f7f\u7528<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">service \u5c42\u9700\u8981\u7ee7\u627f IService\uff0c\u5f53\u7136\u5b9e\u73b0\u5c42\u4e5f\u8981\u7ee7\u627f\u5bf9\u5e94\u7684\u5b9e\u73b0\u7c7b\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/cdn.jsdelivr.net\/gh\/xmt1139057136\/xttblog\/2022\/03\/iservice.png\" alt=\"\" \/><figcaption>MyBatisPlus\u4e2dIService\u63d0\u4f9b\u7684\u63a5\u53e3<\/figcaption><\/figure><\/div>\n\n\n\n<pre class=\"wp-block-code\"><code>\/**\n * \u7528\u6237 \u670d\u52a1\u7c7b\n *\/\npublic interface UserService extends IService&lt;User&gt; {\n\n}<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>\/**\n * \u7528\u6237 \u670d\u52a1\u5b9e\u73b0\u7c7b\n *\/\n@Service\npublic class UserServiceImpl extends ServiceImpl&lt;UserMapper, User&gt; implements UserService {\n\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u57fa\u672c\u7684\u589e\u5220\u6539\u67e5\u6211\u5c31\u4e0d\u4e00\u4e00\u6f14\u793a\u4e86\uff0c\u6f14\u793a\u51e0\u4e2a\u7279\u6b8a\u4e00\u70b9\u7684\u65b9\u6cd5\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">getOne()\uff0c\u8fd9\u4e2a\u662f\u65b9\u6cd5\u8fd4\u56de\u7ed3\u679c\u4e0d\u6b62\u4e00\u6761\u5219\u4f1a\u629b\u51fa\u5f02\u5e38\uff0c\u5982\u679c\u60f3\u9ed8\u8ba4\u53d6\u7b2c\u4e00\u6761\u7ed3\u679c\uff0c\u53ef\u4ee5\u7ed9\u8fd9\u65b9\u6cd5\u4f20\u7b2c\u4e8c\u4e2a\u53c2\u6570\u4e3a false\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>@Test\npublic void getOne() {\n    User one = userService.getOne(Wrappers.&lt;User&gt;lambdaQuery().eq(User::getAge, 31),false);\n    System.out.println(one);\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">saveOrUpdateBatch()\uff0c\u6279\u91cf\u65b0\u589e\u6216\u8005\u4fee\u6539\u65b9\u6cd5\uff0c\u5224\u65ad ID \u662f\u5426\u5b58\u5728\uff0c\u5982\u679c ID \u4e0d\u5b58\u5728\u6267\u884c\u65b0\u589e\uff0c\u5982\u679c ID \u5b58\u5728\u5148\u6267\u884c\u67e5\u8be2\u8bed\u53e5\uff0c\u67e5\u8be2\u7ed3\u679c\u4e3a\u7a7a\u65b0\u589e\uff0c\u5426\u5219\u4fee\u6539\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>@Test\npublic void saveOrUpdateBatch() {\n    User user1 = new User();\n    user1.setName(\"\u5154\u5b50\");\n    user1.setAge(18);\n\n    User user2 = new User();\n    user2.setId(1088250446457389060L);\n    user2.setName(\"\u4e4c\u9f9f\");\n    user2.setAge(18);\n\n    List&lt;User&gt; users = Arrays.asList(user1, user2);\n\n    boolean b = userService.saveOrUpdateBatch(users);\n    System.out.println(b);\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u63a5\u4e0b\u6765\u8bf4\u4e00\u4e0b\u57fa\u4e8e lambda \u7684\u76f8\u5173\u64cd\u4f5c\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/**\n * lombda\u67e5\u8be2\n *\/\n@Test\npublic void lambdaQuery(){\n    List&lt;User&gt; list = userService.lambdaQuery().eq(User::getAge, 18).list();\n    list.forEach(System.out::println);\n}\n\n\/**\n * lombda\u4fee\u6539\n *\/\n@Test\npublic void lambdaUpdate(){\n    boolean update = userService.lambdaUpdate().eq(User::getAge, 18).set(User::getAge, 31).update();\n    System.out.println(update);\n}\n\n\/**\n * lombda\u5220\u9664\n *\/\n@Test\npublic void lambdaRemoce(){\n    boolean remove = userService.lambdaUpdate().eq(User::getAge, 18).remove();\n    System.out.println(remove);\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u6846\u67b6\u5c01\u88c5\u7684\u601d\u8003<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u4e00\u7ae0\u4e0e MyBatis-Plus \u5173\u7cfb\u4e0d\u5927\u3002\u4f46\u662f\u6211\u4eec\u901a\u8fc7 MyBatis-Plus \u5c31\u53ef\u4ee5\u7aa5\u63a2\u51fa\u5b66\u4f1a\u62bd\u8c61\uff0c\u5b66\u4f1a\u8bbe\u8ba1\u6a21\u5f0f\uff0c\u5b66\u4f1a\u67b6\u6784\u7684\u597d\u5904\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6211\u4eec\u591a\u6570\u7a0b\u5e8f\u5458\uff0c\u4e00\u76f4\u5728\u8fdb\u884c CRUD \u7f16\u7a0b\uff0c\u6bcf\u5929\u4e00\u76f4\u5728\u5fd9\u7740\u5199 CRUD \u4ee3\u7801\u3002\u4ece\u6765\u90fd\u6ca1\u60f3\u8fc7\u5982\u4f55\u53bb\u66f4\u597d\u7684\u5c01\u88c5 CRUD \u4e2d\u4e0d\u53d8\u7684\u90e8\u5206\uff0c\u62bd\u8c61\u53ef\u53d8\u7684\u90e8\u5206\u3002\u8ba9\u81ea\u5df1\u6bcf\u5929\u66f4\u8f7b\u677e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6211\u8fd9\u91cc\u53ea\u662f\u629b\u7816\u5f15\u7389\uff0c\u8ba9\u5927\u5bb6\u770b\u5230\u66f4\u591a\u4f18\u79c0\u7684\u6846\u67b6\u3002\u4f18\u79c0\u7684\u4ee3\u7801\u5b9e\u73b0\uff0c\u53bb\u501f\u9274\u5b83\u4eec\uff0c\u4e30\u5bcc\u81ea\u5df1\u7684\u7ecf\u9a8c\uff0c\u5728\u9879\u76ee\u4e2d\u82b1\u66f4\u5c11\u7684\u65f6\u95f4\uff0c\u5b9e\u73b0\u66f4\u91cd\u8981\u7684\u529f\u80fd\u3002\u800c\u4e0d\u5e94\u8be5\u82b1\u66f4\u591a\u7684\u65f6\u95f4\u5728 CRUD \u4e0a\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8ba9\u539f\u672c\u82b1\u5728 CRUD \u4e0a\u7684\u65f6\u95f4\uff0c\u7a7a\u95f2\u51fa\u6765\uff0c\u5b66\u4e60\u66f4\u591a\u65b0\u7684\u77e5\u8bc6\uff0c\u770b\u66f4\u591a\u7684\u4e66\u3002<\/p>\n<!-- <audio autoplay=\"autoplay\" height=\"100\" width=\"100\" hidden=\"true\"><source src=\"https:\/\/c.coka.la\/orAvPR.mp3\" type=\"audio\/mp3\"\/><\/audio><img decoding=\"async\" src=\"https:\/\/images.weserv.nl\/?url=https:\/\/ws3.sinaimg.cn\/large\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/> --><p><!-- <img decoding=\"async\" src=\"https:\/\/raw.githubusercontent.com\/xmt1139057136\/xttblog\/master\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/>--><img decoding=\"async\" src=\"https:\/\/saas.51autoparts.cn\/api\/admin\/sys-file\/oss\/file?fileName=84db51f8561e448f9a4fda2eff0811f9.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/><\/p><p>\u6700\u540e\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u4e2a\u4eba\u5fae\u4fe1\u516c\u4f17\u53f7\uff1a\u4e1a\u4f59\u8349\uff08yyucao\uff09\uff01<b>\u53ef\u52a0\u4f5c\u8005\u5fae\u4fe1\u53f7\uff1a<font color=\"red\">xttblog2<\/font>\u3002\u5907\u6ce8\uff1a\u201c1\u201d\uff0c\u6dfb\u52a0\u535a\u4e3b\u5fae\u4fe1\u62c9\u4f60\u8fdb\u5fae\u4fe1\u7fa4\u3002\u5907\u6ce8\u9519\u8bef\u4e0d\u4f1a\u540c\u610f\u597d\u53cb\u7533\u8bf7\u3002<\/b>\u518d\u6b21\u611f\u8c22\u60a8\u7684\u5173\u6ce8\uff01\u540e\u7eed\u6709\u7cbe\u5f69\u5185\u5bb9\u4f1a\u7b2c\u4e00\u65f6\u95f4\u53d1\u7ed9\u60a8\uff01\u539f\u521b\u6587\u7ae0\u6295\u7a3f\u8bf7\u53d1\u9001\u81f3532009913@qq.com\u90ae\u7bb1\u3002\u5546\u52a1\u5408\u4f5c\u4e5f\u53ef\u6dfb\u52a0\u4f5c\u8005\u5fae\u4fe1\u8fdb\u884c\u8054\u7cfb\uff01<\/p><p>\u672c\u6587\u539f\u6587\u51fa\u5904\uff1a<a href=\"https:\/\/www.xttblog.com\">\u4e1a\u4f59\u8349<\/a>\uff1a &raquo; <a href=\"https:\/\/www.xttblog.com\/?p=5336\">MyBatis-Plus \u901a\u7528 IService \u4f7f\u7528\u4ecb\u7ecd\u4e0e\u7b80\u5355\u4f7f\u7528\u6559\u7a0b<\/a><\/p><!-- <div class=\"bd-reward-stl\"><button id=\"bdRewardBtn\"><span><\/span><\/button><\/div> -->","protected":false},"excerpt":{"rendered":"<p>MyBatis-Plus \u901a\u7528 IService \u4f7f\u7528\u4ecb\u7ecd\u4e0e\u7b80\u5355\u4f7f\u7528\u6559\u7a0b\u3002 \u4e00\u3001\u5f15\u8a00 MP \u9664\u4e86\u901a\u7528\u7684 Map [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[1037,1653,216,1825,79],"class_list":["post-5336","post","type-post","status-publish","format-standard","hentry","category-java","tag-mybatis","tag-mybatisplus","tag-216","tag-1825","tag-79"],"_links":{"self":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/5336","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5336"}],"version-history":[{"count":1,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/5336\/revisions"}],"predecessor-version":[{"id":5337,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/5336\/revisions\/5337"}],"wp:attachment":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5336"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5336"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5336"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}