{"id":5024,"date":"2020-06-12T19:05:33","date_gmt":"2020-06-12T11:05:33","guid":{"rendered":"https:\/\/www.xttblog.com\/?p=5024"},"modified":"2020-06-12T19:05:33","modified_gmt":"2020-06-12T11:05:33","slug":"mybatis-plus%e4%b8%ad%e7%9a%84querywrapper%e3%80%81updatewrapper%e7%94%a8%e6%b3%95%e6%95%99%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/www.xttblog.com\/?p=5024","title":{"rendered":"MyBatis-Plus\u4e2d\u7684QueryWrapper\u3001UpdateWrapper\u7528\u6cd5\u6559\u7a0b"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u4f17\u6240\u5468\u77e5\uff0c\u56fd\u4eba\u559c\u6b22\u7528 MyBatis\uff0c\u4f46\u662f\u56fd\u5185\u5e76\u6ca1\u6709\u5173\u4e8e MyBatis \u7684\u89c4\u8303\u624b\u518c\uff0c\u5bfc\u81f4\u6709\u7684\u4f7f\u7528\u5404\u79cd\u6761\u4ef6\u6784\u9020\u5668\u548c XML \u4ee5\u53ca\u6ce8\u89e3\u6df7\u7528\uff01\u4e0d\u540c\u7684\u4eba\u6709\u4e0d\u540c\u7684\u4f7f\u7528\u4e60\u60ef\uff0c\u5bfc\u81f4\u56e2\u961f\u5185\u90e8\u5206\u5458\u5de5\u518d\u6539\u52a8\u522b\u4eba\u7684\u6761\u4ef6\u6784\u9020\u5668\u65f6\u65f6\u5e38\u51fa\u9519\uff0c\u57fa\u4e8e\u6b64\uff0c\u6211\u603b\u7ed3\u4e86\u4e00\u5957\u5173\u4e8e MyBatis-Plus \u6761\u4ef6\u6784\u9020\u5668\u7684\u4f7f\u7528\u624b\u518c\uff0c\u5e0c\u671b\u80fd\u591f\u5e2e\u52a9\u5230\u5927\u5bb6\uff01<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/gitee.com\/xmtblog\/img\/raw\/master\/2020\/mybatis-plus-wrapper.png\" alt=\"\" \/><figcaption>Mybatis\u6761\u4ef6\u6784\u9020\u5668\u5927\u5168<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u6536\u85cf\u4e0a\u9762\u8fd9\u5f20\u56fe\u7247\uff0c\u5fd8\u8bb0\u7528\u6cd5\u7684\u65f6\u5019\u62ff\u51fa\u6765\u770b\u770b\uff01<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u9762\u4e3e\u4f8b\u4e00\u4e9b\u5e38\u7528\u7684\u51fd\u6570\u540d\u7684\u7528\u6cd5\uff01<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">eq \u7684\u7528\u6cd5\uff1a<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>eq(R column, Object val)\neq(boolean condition, R column, Object val)\n\/\/ \u4f8b: eq(\"name\", \"\u4e1a\u4f59\u8349\")---&gt;name = '\u4e1a\u4f59\u8349'<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">ne \u51fd\u6570\u7684\u7528\u6cd5\uff1a<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>ne(R column, Object val)\nne(boolean condition, R column, Object val)\n\/\/ \u4e0d\u7b49\u4e8e &lt;&gt;\n\/\/ \u4f8b: ne(\"name\", \"\u4e1a\u4f59\u8349\")---&gt;name &lt;&gt; '\u4e1a\u4f59\u8349'<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">gt \u51fd\u6570\u7684\u7528\u6cd5\uff1a<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>gt(R column, Object val)\ngt(boolean condition, R column, Object val)\n\/\/ \u5927\u4e8e &gt;\n\/\/ \u4f8b: gt(\"age\", 18)---&gt;age &gt; 18<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">ge \u51fd\u6570\u7684\u7528\u6cd5\uff1a<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>ge(R column, Object val)\nge(boolean condition, R column, Object val)\n\/\/ \u5927\u4e8e\u7b49\u4e8e &gt;=\n\/\/ \u4f8b: ge(\"age\", 18)---&gt;age &gt;= 18<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">lt \u51fd\u6570\u7684\u7528\u6cd5\uff1a<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>lt(R column, Object val)\nlt(boolean condition, R column, Object val)\n\/\/ \u5c0f\u4e8e &lt; \n\/\/ \u4f8b: lt(\"age\", 18)---&gt;age &lt; 18<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">le \u51fd\u6570\u7684\u7528\u6cd5\uff1a<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>le(R column, Object val)\nle(boolean condition, R column, Object val)\n\/\/ \u5c0f\u4e8e\u7b49\u4e8e &lt;= \n\/\/ \u4f8b: le(\"age\", 18)---&gt;age &lt;= 18<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">between \u51fd\u6570\u7684\u7528\u6cd5\uff1a<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>between(R column, Object val1, Object val2)\nbetween(boolean condition, R column, Object val1, Object val2)\n\/\/ BETWEEN \u503c1 AND \u503c2\n\/\/ \u4f8b: between(\"age\", 18, 30)---&gt;age between 18 and 30<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">notBetween \u51fd\u6570\u7684\u7528\u6cd5\uff1a<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>notBetween(R column, Object val1, Object val2)\nnotBetween(boolean condition, R column, Object val1, Object val2)\n\/\/ NOT BETWEEN \u503c1 AND \u503c2\n\/\/ \u4f8b: notBetween(\"age\", 18, 30)---&gt;age not between 18 and 30<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">like \u51fd\u6570\u7684\u7528\u6cd5\uff1a<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>like(R column, Object val)\nlike(boolean condition, R column, Object val)\n\/\/ LIKE '%\u503c%'\n\/\/ \u4f8b: like(\"name\", \"\u738b\")---&gt;name like '%\u738b%'<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">notLike \u51fd\u6570\u7684\u7528\u6cd5\uff1a<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>notLike(R column, Object val)\nnotLike(boolean condition, R column, Object val)\n\/\/ NOT LIKE '%\u503c%'\n\/\/ \u4f8b: notLike(\"name\", \"\u738b\")---&gt;name not like '%\u738b%'<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">likeLeft \u51fd\u6570\u7684\u7528\u6cd5\uff1a<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>likeLeft(R column, Object val)\nlikeLeft(boolean condition, R column, Object val)\n\/\/ LIKE '%\u503c'\n\/\/ \u4f8b: likeLeft(\"name\", \"\u738b\")---&gt;name like '%\u738b'<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">likeRight \u51fd\u6570\u7684\u7528\u6cd5\uff1a<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>likeRight(R column, Object val)\nlikeRight(boolean condition, R column, Object val)\n\/\/ LIKE '\u503c%'\n\/\/ \u4f8b: likeRight(\"name\", \"\u738b\")---&gt;name like '\u738b%'<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">isNull \u51fd\u6570\u7684\u7528\u6cd5\uff1a<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>isNull(R column)\nisNull(boolean condition, R column)\n\/\/ \u5b57\u6bb5 IS NULL\n\/\/ \u4f8b: isNull(\"name\")---&gt;name is null<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">isNotNull \u51fd\u6570\u7684\u7528\u6cd5\uff1a<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>isNotNull(R column)\nisNotNull(boolean condition, R column)\n\/\/ \u5b57\u6bb5 IS NOT NULL\n\/\/ \u4f8b: isNotNull(\"name\")---&gt;name is not null<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">in \u51fd\u6570\u7684\u7528\u6cd5\uff1a<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>in(R column, Collection value)\nin(boolean condition, R column, Collection value)\n\/\/ \u5b57\u6bb5 IN (value.get(0), value.get(1), \u2026)\n\/\/ \u4f8b: in(\"age\",{1,2,3})---&gt;age in (1,2,3)\n\nin(R column, Object\u2026 values)\nin(boolean condition, R column, Object\u2026 values)\n\/\/ \u5b57\u6bb5 IN (v0, v1, \u2026)\n\/\/ \u4f8b: in(\"age\", 1, 2, 3)---&gt;age in (1,2,3)<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">notIn \u51fd\u6570\u7684\u7528\u6cd5\uff1a<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>notIn(R column, Collection value)\nnotIn(boolean condition, R column, Collection value)\n\/\/ \u5b57\u6bb5 NOT IN (value.get(0), value.get(1), \u2026)\n\/\/ \u4f8b: notIn(\"age\",{1,2,3})---&gt;age not in (1,2,3)\n\nnotIn(R column, Object\u2026 values)\nnotIn(boolean condition, R column, Object\u2026 values)\n\/\/ \u5b57\u6bb5 NOT IN (v0, v1, \u2026)\n\/\/ \u4f8b: notIn(\"age\", 1, 2, 3)---&gt;age not in (1,2,3)<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u4ed6\u8fd8\u6709\u5f88\u591a\u51fd\u6570\u7684\u7528\u6cd5\u6211\u5c31\u4e0d\u4e00\u4e00\u5217\u4e3e\u4e86\uff0c\u90fd\u5f88\u7b80\u5355\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u540e\u5c31\u662f\u5404\u4e2a\u6761\u4ef6\u6784\u9020\u5668\u5173\u7cfb\uff0c\u770b\u61c2\u4e0b\u56fe\u5c31 OK \u4e86\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/gitee.com\/xmtblog\/img\/raw\/master\/2020\/mybatis-wrapper.png\" alt=\"\" \/><figcaption>MyBatis-Plus\u6761\u4ef6\u6784\u9020\u5668\u5173\u7cfb\u56fe<\/figcaption><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u5404 wapper \u4ecb\u7ecd \uff1a<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Wrapper \uff1a \u6761\u4ef6\u6784\u9020\u62bd\u8c61\u7c7b\uff0c\u6700\u9876\u7aef\u7236\u7c7b\uff0c\u62bd\u8c61\u7c7b\u4e2d\u63d0\u4f9b4\u4e2a\u65b9\u6cd5\u897f\u9762\u8d34\u6e90\u7801\u5c55\u793a<\/li><li>AbstractWrapper \uff1a \u7528\u4e8e\u67e5\u8be2\u6761\u4ef6\u5c01\u88c5\uff0c\u751f\u6210 sql \u7684 where \u6761\u4ef6<\/li><li>AbstractLambdaWrapper \uff1a Lambda \u8bed\u6cd5\u4f7f\u7528 Wrapper\u7edf\u4e00\u5904\u7406\u89e3\u6790 lambda \u83b7\u53d6 column\u3002<\/li><li>LambdaQueryWrapper \uff1a\u770b\u540d\u79f0\u4e5f\u80fd\u660e\u767d\u5c31\u662f\u7528\u4e8eLambda\u8bed\u6cd5\u4f7f\u7528\u7684\u67e5\u8be2Wrapper<\/li><li>LambdaUpdateWrapper \uff1a Lambda \u66f4\u65b0\u5c01\u88c5Wrapper<\/li><li>QueryWrapper \uff1a Entity \u5bf9\u8c61\u5c01\u88c5\u64cd\u4f5c\u7c7b\uff0c\u4e0d\u662f\u7528lambda\u8bed\u6cd5<\/li><li>UpdateWrapper \uff1a Update \u6761\u4ef6\u5c01\u88c5\uff0c\u7528\u4e8eEntity\u5bf9\u8c61\u66f4\u65b0\u64cd\u4f5c<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u53c2\u8003\u8d44\u6599<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"http:\/\/mp.baomidou.com\/guide\/wrapper.html#abstractwrapper\">http:\/\/mp.baomidou.com\/guide\/wrapper.html#abstractwrapper<\/a><\/li><\/ul>\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=5024\">MyBatis-Plus\u4e2d\u7684QueryWrapper\u3001UpdateWrapper\u7528\u6cd5\u6559\u7a0b<\/a><\/p><!-- <div class=\"bd-reward-stl\"><button id=\"bdRewardBtn\"><span><\/span><\/button><\/div> -->","protected":false},"excerpt":{"rendered":"<p>\u4f17\u6240\u5468\u77e5\uff0c\u56fd\u4eba\u559c\u6b22\u7528 MyBatis\uff0c\u4f46\u662f\u56fd\u5185\u5e76\u6ca1\u6709\u5173\u4e8e MyBatis \u7684\u89c4\u8303\u624b\u518c\uff0c\u5bfc\u81f4\u6709\u7684\u4f7f\u7528\u5404\u79cd\u6761\u4ef6\u6784\u9020 [&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":[845,1037,1653,1809,1522],"class_list":["post-5024","post","type-post","status-publish","format-standard","hentry","category-java","tag-hibernate","tag-mybatis","tag-mybatisplus","tag-perfieldanalyzerwrapper","tag-springboot"],"_links":{"self":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/5024","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=5024"}],"version-history":[{"count":1,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/5024\/revisions"}],"predecessor-version":[{"id":5025,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/5024\/revisions\/5025"}],"wp:attachment":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5024"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5024"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5024"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}