{"id":468,"date":"2024-12-18T13:44:14","date_gmt":"2024-12-18T05:44:14","guid":{"rendered":"https:\/\/www.huangkeqin.cn\/?p=468"},"modified":"2024-12-18T14:07:40","modified_gmt":"2024-12-18T06:07:40","slug":"%e5%88%86%e9%a1%b5%e4%b8%8d%e6%98%af%e5%85%a8%e9%83%a8%e6%9f%a5%e5%87%ba%e6%9d%a5%e5%86%8d%e5%88%86%e9%a1%b5%ef%bc%8c%e5%8f%af%e9%81%bf%e5%85%8d%e4%b8%80%e6%ac%a1%e6%80%a7%e6%9f%a5%e8%af%a2%e8%bf%87","status":"publish","type":"post","link":"https:\/\/www.huangkeqin.cn\/index.php\/2024\/12\/18\/%e5%88%86%e9%a1%b5%e4%b8%8d%e6%98%af%e5%85%a8%e9%83%a8%e6%9f%a5%e5%87%ba%e6%9d%a5%e5%86%8d%e5%88%86%e9%a1%b5%ef%bc%8c%e5%8f%af%e9%81%bf%e5%85%8d%e4%b8%80%e6%ac%a1%e6%80%a7%e6%9f%a5%e8%af%a2%e8%bf%87\/","title":{"rendered":"\u5206\u9875\u4e0d\u662f\u5168\u90e8\u67e5\u51fa\u6765\u518d\u5206\u9875\uff0c\u800c\u662f\u6839\u636e\u9875\u7801\u67e5\u8be2\u5f53\u9875\u7684\u6570\u636e\uff0c\u53ef\u907f\u514d\u4e00\u6b21\u6027\u67e5\u8be2\u8fc7\u591a\u6570\u636e"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u5206\u9875\u5e76\u4e0d\u662f\u5c06\u6240\u6709\u6570\u636e\u67e5\u8be2\u51fa\u6765\u540e\u518d\u5206\u9875\uff0c\u800c\u662f\u901a\u8fc7\u6570\u636e\u5e93\u7684 <strong>LIMIT<\/strong> \u8bed\u53e5\u76f4\u63a5\u4ece\u6570\u636e\u6e90\u4e2d\u63d0\u53d6\u5f53\u524d\u9875\u7684\u6570\u636e\u3002<strong>MyBatis <\/strong>\u5206\u9875\u63d2\u4ef6\uff08\u5982 <strong>PageHelper\uff09<\/strong> \u7684\u6838\u5fc3\u5de5\u4f5c\u5c31\u662f\u62e6\u622a\u539f\u59cb SQL \u67e5\u8be2\uff0c\u5e76\u5728 SQL \u4e2d\u52a0\u5165\u5206\u9875\u903b\u8f91\uff08\u5982 LIMIT \u548c OFFSET\uff09\uff0c\u907f\u514d\u4e00\u6b21\u6027\u52a0\u8f7d\u6240\u6709\u6570\u636e\u5230\u5185\u5b58\u4e2d\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u5206\u9875\u7684\u672c\u8d28<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5206\u9875\u7684\u6838\u5fc3\u662f\u5728 SQL \u67e5\u8be2\u5c42\u9762\u52a0\u4ee5\u9650\u5236\uff0c\u800c\u4e0d\u662f\u5728\u5185\u5b58\u4e2d\u5bf9\u67e5\u8be2\u7ed3\u679c\u5206\u9875\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5047\u8bbe\u6709 10,000 \u6761\u5458\u5de5\u8bb0\u5f55\uff0c\u800c\u9875\u9762\u6bcf\u6b21\u53ea\u663e\u793a 10 \u6761\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9519\u8bef\u7684\u5206\u9875\u65b9\u5f0f\uff1a\n<ol class=\"wp-block-list\">\n<li>\u67e5\u8be2\u6240\u6709 10,000 \u6761\u8bb0\u5f55\u5230\u5185\u5b58\u3002<\/li>\n\n\n\n<li>\u5728\u5185\u5b58\u4e2d\u53d6\u51fa\u524d 10 \u6761\uff0c\u5ffd\u7565\u5269\u4f59\u7684 9,990 \u6761\u3002<\/li>\n\n\n\n<li>\u95ee\u9898<strong>\uff1a<\/strong> \u6570\u636e\u91cf\u5927\u65f6\uff0c\u5185\u5b58\u6d88\u8017\u4e25\u91cd\uff0c\u67e5\u8be2\u6548\u7387\u4f4e\u4e0b\u3002<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li>\u6b63\u786e\u7684\u5206\u9875\u65b9\u5f0f\uff08\u6570\u636e\u5e93\u5206\u9875\uff09\uff1a\n<ol class=\"wp-block-list\">\n<li>\u901a\u8fc7 SQL \u7684 <code>LIMIT<\/code> \u548c <code>OFFSET<\/code> \u9650\u5236\u67e5\u8be2\u7ed3\u679c\u3002<\/li>\n\n\n\n<li>\u53ea\u4ece\u6570\u636e\u5e93\u4e2d\u8bfb\u53d6 10 \u6761\u8bb0\u5f55\uff0c\u4f20\u9012\u7ed9\u524d\u7aef\u3002<\/li>\n\n\n\n<li>\u6548\u679c\uff1a \u6570\u636e\u5e93\u5c42\u9762\u51cf\u5c11\u4e86\u65e0\u7528\u6570\u636e\u7684\u4f20\u8f93\u548c\u52a0\u8f7d\uff0c\u5927\u5e45\u63d0\u9ad8\u6027\u80fd\u3002<\/li>\n<\/ol>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>MyBatis \u5206\u9875\u63d2\u4ef6\u7684\u5b9e\u73b0<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5206\u9875\u63d2\u4ef6\uff08\u5982 <strong>PageHelper<\/strong>\uff09\u4f1a\u81ea\u52a8\u62e6\u622a\u539f\u59cb SQL\uff0c\u5e76\u5728\u5176\u57fa\u7840\u4e0a\u52a8\u6001\u8ffd\u52a0 <code>LIMIT<\/code> \u548c <code>OFFSET<\/code> \u5b50\u53e5\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u539f\u59cb SQL\uff1a<code>SELECT * FROM user;<\/code><\/li>\n\n\n\n<li>\u5206\u9875\u63d2\u4ef6\u81ea\u52a8\u8ffd\u52a0\uff1a<code>SELECT * FROM user LIMIT 10 OFFSET 20; -- \u67e5\u8be2\u7b2c 3 \u9875\uff08\u6bcf\u9875 10 \u6761\uff09<\/code><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee3\u7801\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><code>PageHelper.startPage(pageNum, pageSize);<br>List&lt;User> users = userMapper.selectAll(); \/\/ \u539f\u59cb\u67e5\u8be2<br>PageInfo&lt;User> pageInfo = new PageInfo&lt;>(users);<br><\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u91cc\u7684 <code>startPage<\/code> \u65b9\u6cd5\u4f1a\u5728 <code>selectAll<\/code> \u6267\u884c\u524d\u62e6\u622a SQL \u5e76\u9644\u52a0\u5206\u9875\u53c2\u6570\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u907f\u514d\u4e00\u6b21\u6027\u67e5\u8be2\u8fc7\u591a\u6570\u636e\u7684\u63aa\u65bd<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6570\u636e\u5e93\u5c42\u5206\u9875<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u5206\u9875\u63d2\u4ef6\u4f1a\u76f4\u63a5\u5728\u6570\u636e\u5e93\u5c42\u9762\u6267\u884c\u5206\u9875 SQL\uff0c\u53ea\u52a0\u8f7d\u5f53\u524d\u9875\u7684\u6570\u636e\u5230\u5185\u5b58\u4e2d\uff0c\u800c\u4e0d\u662f\u52a0\u8f7d\u5168\u90e8\u6570\u636e\u3002<\/li>\n\n\n\n<li><strong>\u4f18\u70b9\uff1a<\/strong> \u6570\u636e\u4f20\u8f93\u91cf\u548c\u5185\u5b58\u6d88\u8017\u4ec5\u4e0e\u5206\u9875\u5927\u5c0f\u76f8\u5173\uff0c\u4e0e\u603b\u6570\u636e\u91cf\u65e0\u5173\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u9650\u5236\u5206\u9875\u5927\u5c0f<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u901a\u8fc7\u524d\u7aef\u548c\u540e\u7aef\u7ea6\u5b9a\uff0c\u6bcf\u9875\u6700\u591a\u53ea\u80fd\u8bf7\u6c42\u4e00\u5b9a\u6570\u91cf\u7684\u6570\u636e\u3002\u4f8b\u5982\uff1a\n<ul class=\"wp-block-list\">\n<li>\u6bcf\u9875\u6570\u636e\u91cf <code>pageSize<\/code> \u4e0d\u8d85\u8fc7 100 \u6761\uff0c\u907f\u514d\u5355\u6b21\u8bf7\u6c42\u8fc7\u591a\u6570\u636e\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u5206\u9875\u5e76\u4e0d\u662f\u5c06\u6240\u6709\u6570\u636e\u67e5\u8be2\u51fa\u6765\u540e\u518d\u5206\u9875\uff0c\u800c\u662f\u901a\u8fc7\u6570\u636e\u5e93\u7684 <strong>LIMIT<\/strong> \u8bed\u53e5\u76f4\u63a5\u4ece\u6570\u636e\u6e90\u4e2d\u63d0\u53d6\u5f53\u524d\u9875\u7684\u6570\u636e\u3002<strong>MyBatis \u5206\u9875\u63d2\u4ef6\uff08\u5982 PageHelper\uff09<\/strong> \u7684\u6838\u5fc3\u5de5\u4f5c\u5c31\u662f\u62e6\u622a\u539f\u59cb SQL \u67e5\u8be2\uff0c\u5e76\u5728 SQL \u4e2d\u52a0\u5165\u5206\u9875\u903b\u8f91\uff08\u5982 LIMIT \u548c OFFSET\uff09\uff0c\u907f\u514d\u4e00\u6b21\u6027\u52a0\u8f7d\u6240\u6709\u6570\u636e\u5230\u5185\u5b58\u4e2d\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u5206\u9875\u7684\u672c\u8d28<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5206\u9875\u7684\u6838\u5fc3\u662f\u5728 <strong>SQL \u67e5\u8be2\u5c42\u9762<\/strong>\u52a0\u4ee5\u9650\u5236\uff0c\u800c\u4e0d\u662f\u5728\u5185\u5b58\u4e2d\u5bf9\u67e5\u8be2\u7ed3\u679c\u5206\u9875\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5047\u8bbe\u6709 10,000 \u6761\u5458\u5de5\u8bb0\u5f55\uff0c\u800c\u9875\u9762\u6bcf\u6b21\u53ea\u663e\u793a 10 \u6761\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u9519\u8bef\u7684\u5206\u9875\u65b9\u5f0f\uff1a<\/strong>\n<ol class=\"wp-block-list\">\n<li>\u67e5\u8be2\u6240\u6709 10,000 \u6761\u8bb0\u5f55\u5230\u5185\u5b58\u3002<\/li>\n\n\n\n<li>\u5728\u5185\u5b58\u4e2d\u53d6\u51fa\u524d 10 \u6761\uff0c\u5ffd\u7565\u5269\u4f59\u7684 9,990 \u6761\u3002<\/li>\n\n\n\n<li><strong>\u95ee\u9898\uff1a<\/strong> \u6570\u636e\u91cf\u5927\u65f6\uff0c\u5185\u5b58\u6d88\u8017\u4e25\u91cd\uff0c\u67e5\u8be2\u6548\u7387\u4f4e\u4e0b\u3002<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li><strong>\u6b63\u786e\u7684\u5206\u9875\u65b9\u5f0f\uff08\u6570\u636e\u5e93\u5206\u9875\uff09\uff1a<\/strong>\n<ol class=\"wp-block-list\">\n<li>\u901a\u8fc7 SQL \u7684 <code>LIMIT<\/code> \u548c <code>OFFSET<\/code> \u9650\u5236\u67e5\u8be2\u7ed3\u679c\u3002<\/li>\n\n\n\n<li>\u53ea\u4ece\u6570\u636e\u5e93\u4e2d\u8bfb\u53d6 10 \u6761\u8bb0\u5f55\uff0c\u4f20\u9012\u7ed9\u524d\u7aef\u3002<\/li>\n\n\n\n<li><strong>\u6548\u679c\uff1a<\/strong> \u6570\u636e\u5e93\u5c42\u9762\u51cf\u5c11\u4e86\u65e0\u7528\u6570\u636e\u7684\u4f20\u8f93\u548c\u52a0\u8f7d\uff0c\u5927\u5e45\u63d0\u9ad8\u6027\u80fd\u3002<\/li>\n<\/ol>\n<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">SQL \u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sql\u590d\u5236\u4ee3\u7801<code>SELECT * FROM user\nLIMIT 10 OFFSET 0; -- \u7b2c 1 \u9875\nSELECT * FROM user\nLIMIT 10 OFFSET 10; -- \u7b2c 2 \u9875\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>MyBatis \u5206\u9875\u63d2\u4ef6\u7684\u5b9e\u73b0<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5206\u9875\u63d2\u4ef6\uff08\u5982 <strong>PageHelper<\/strong>\uff09\u4f1a\u81ea\u52a8\u62e6\u622a\u539f\u59cb SQL\uff0c\u5e76\u5728\u5176\u57fa\u7840\u4e0a\u52a8\u6001\u8ffd\u52a0 <code>LIMIT<\/code> \u548c <code>OFFSET<\/code> \u5b50\u53e5\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u539f\u59cb SQL\uff1asql\u590d\u5236\u4ee3\u7801<code>SELECT * FROM user;<\/code><\/li>\n\n\n\n<li>\u5206\u9875\u63d2\u4ef6\u81ea\u52a8\u8ffd\u52a0\uff1asql\u590d\u5236\u4ee3\u7801<code>SELECT * FROM user LIMIT 10 OFFSET 20; -- \u67e5\u8be2\u7b2c 3 \u9875\uff08\u6bcf\u9875 10 \u6761\uff09<\/code><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee3\u7801\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><code>PageHelper.startPage(pageNum, pageSize);<br>List&lt;User> users = userMapper.selectAll(); \/\/ \u539f\u59cb\u67e5\u8be2<br>PageInfo&lt;User> pageInfo = new PageInfo&lt;>(users);<br><\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u91cc\u7684 <code>startPage<\/code> \u65b9\u6cd5\u4f1a\u5728 <code>selectAll<\/code> \u6267\u884c\u524d\u62e6\u622a SQL \u5e76\u9644\u52a0\u5206\u9875\u53c2\u6570\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u907f\u514d\u4e00\u6b21\u6027\u67e5\u8be2\u8fc7\u591a\u6570\u636e\u7684\u63aa\u65bd<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6570\u636e\u5e93\u5c42\u5206\u9875<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u5206\u9875\u63d2\u4ef6\u4f1a\u76f4\u63a5\u5728\u6570\u636e\u5e93\u5c42\u9762\u6267\u884c\u5206\u9875 SQL\uff0c\u53ea\u52a0\u8f7d\u5f53\u524d\u9875\u7684\u6570\u636e\u5230\u5185\u5b58\u4e2d\uff0c\u800c\u4e0d\u662f\u52a0\u8f7d\u5168\u90e8\u6570\u636e\u3002<\/li>\n\n\n\n<li><strong>\u4f18\u70b9\uff1a<\/strong> \u6570\u636e\u4f20\u8f93\u91cf\u548c\u5185\u5b58\u6d88\u8017\u4ec5\u4e0e\u5206\u9875\u5927\u5c0f\u76f8\u5173\uff0c\u4e0e\u603b\u6570\u636e\u91cf\u65e0\u5173\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u9650\u5236\u5206\u9875\u5927\u5c0f<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u901a\u8fc7\u524d\u7aef\u548c\u540e\u7aef\u7ea6\u5b9a\uff0c\u6bcf\u9875\u6700\u591a\u53ea\u80fd\u8bf7\u6c42\u4e00\u5b9a\u6570\u91cf\u7684\u6570\u636e\u3002\u4f8b\u5982\uff1a\n<ul class=\"wp-block-list\">\n<li>\u6bcf\u9875\u6570\u636e\u91cf <code>pageSize<\/code> \u4e0d\u8d85\u8fc7 100 \u6761\uff0c\u907f\u514d\u5355\u6b21\u8bf7\u6c42\u8fc7\u591a\u6570\u636e\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u793a\u4f8b\uff1ajava\u590d\u5236\u4ee3\u7801<code>if (pageSize > 100) { pageSize = 100; \/\/ \u9650\u5236\u6bcf\u9875\u6700\u5927\u6570\u636e\u91cf }<\/code><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u7d22\u5f15\u4f18\u5316<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u6570\u636e\u91cf\u5927\u65f6\uff0c\u4e3a\u5206\u9875\u67e5\u8be2\u7684\u6761\u4ef6\u5b57\u6bb5\uff08\u5982\u4e3b\u952e <code>id<\/code> \u6216\u5176\u4ed6\u6392\u5e8f\u5b57\u6bb5\uff09\u5efa\u7acb\u7d22\u5f15\u3002<\/li>\n\n\n\n<li>\u793a\u4f8b\uff1asql\u590d\u5236\u4ee3\u7801<code>CREATE INDEX idx_user_id ON user(id);<\/code><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u589e\u91cf\u67e5\u8be2\uff08\u6eda\u52a8\u5206\u9875\uff09<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u5f53\u6570\u636e\u91cf\u6781\u5927\u65f6\uff08\u5982\u767e\u4e07\u7ea7\uff09\uff0c\u53ef\u4f7f\u7528\u6eda\u52a8\u5206\u9875\uff08\u57fa\u4e8e\u6e38\u6807\uff09\uff0c\u907f\u514d OFFSET \u5bfc\u81f4\u7684\u6027\u80fd\u95ee\u9898\u3002<\/li>\n\n\n\n<li>\u793a\u4f8b\uff1asql\u590d\u5236\u4ee3\u7801<code>SELECT * FROM user WHERE id > 1000 LIMIT 10; -- \u6eda\u52a8\u5206\u9875<\/code><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u603b\u7ed3\uff1aMyBatis \u5206\u9875\u907f\u514d\u4e00\u6b21\u6027\u67e5\u8be2\u7684\u5173\u952e\u70b9<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5206\u9875 SQL \u81ea\u52a8\u751f\u6210\uff1a<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u5206\u9875\u63d2\u4ef6\u901a\u8fc7\u62e6\u622a SQL \u81ea\u52a8\u52a0\u4e0a <code>LIMIT<\/code> \u548c <code>OFFSET<\/code> \u53c2\u6570\uff0c\u76f4\u63a5\u5728\u6570\u636e\u5e93\u5c42\u9762\u5206\u9875\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u53ea\u52a0\u8f7d\u5f53\u524d\u9875\u7684\u6570\u636e\uff1a<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u6570\u636e\u5e93\u8fd4\u56de\u7684\u6570\u636e\u91cf\u4e0e\u5206\u9875\u5927\u5c0f\u76f8\u5173\uff0c\u4e0d\u4f1a\u52a0\u8f7d\u5168\u90e8\u6570\u636e\u5230\u5185\u5b58\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u907f\u514d\u8fc7\u5927\u7684\u5206\u9875\u5927\u5c0f\uff1a<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u9650\u5236\u6bcf\u9875\u7684\u6570\u636e\u91cf\uff0c\u4f8b\u5982\u8bbe\u7f6e <code>pageSize &lt;= 100<\/code>\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u9ad8\u6548\u7d22\u5f15\u652f\u6301\uff1a<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u786e\u4fdd\u67e5\u8be2\u6761\u4ef6\u5b57\u6bb5\uff08\u5982 <code>id<\/code> \u6216 <code>department<\/code>\uff09\u6709\u7d22\u5f15\uff0c\u63d0\u5347\u5206\u9875\u67e5\u8be2\u6548\u7387\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u901a\u8fc7\u8fd9\u4e9b\u63aa\u65bd\uff0c\u5206\u9875\u67e5\u8be2\u4e0d\u4f1a\u4e00\u6b21\u6027\u52a0\u8f7d\u6240\u6709\u6570\u636e\uff0c\u800c\u662f\u9ad8\u6548\u5730\u4ece\u6570\u636e\u5e93\u4e2d\u63d0\u53d6\u5f53\u524d\u9875\u7684\u6570\u636e\uff0c\u4ece\u800c\u907f\u514d\u6027\u80fd\u95ee\u9898\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6ce8\u610f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u524d\u7aef\u5728\u5206\u9875\u8fc7\u7a0b\u4e2d\uff0c\u6bcf\u6b21\u6362\u9875\u901a\u5e38\u90fd\u9700\u8981\u5411\u540e\u7aef\u53d1\u9001\u4e00\u4e2a\u65b0\u7684\u8bf7\u6c42\uff0c\u4ee5\u83b7\u53d6\u5bf9\u5e94\u9875\u7684\u6570\u636e\u3002\u8fd9\u79cd\u65b9\u5f0f\u79f0\u4e3a <strong>\u670d\u52a1\u7aef\u5206\u9875\uff08Server-side Pagination\uff09<\/strong>\uff0c\u5b83\u662f\u5904\u7406\u5927\u6570\u636e\u91cf\u65f6\u7684\u6700\u4f73\u5b9e\u8df5\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u524d\u7aef\u5206\u9875 vs \u670d\u52a1\u7aef\u5206\u9875<\/strong><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>1. \u524d\u7aef\u5206\u9875\uff08Client-side Pagination\uff09<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7279\u70b9\uff1a<\/strong><br>\u524d\u7aef\u4e00\u6b21\u6027\u52a0\u8f7d\u6240\u6709\u6570\u636e\u5230\u5185\u5b58\u4e2d\uff0c\u5206\u9875\u903b\u8f91\u7531\u524d\u7aef\u5b9e\u73b0\uff08\u901a\u8fc7 JavaScript \u64cd\u4f5c\u6570\u7ec4\u8fdb\u884c\u5207\u7247\uff09\u3002<\/li>\n\n\n\n<li><strong>\u4f18\u70b9\uff1a<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u6362\u9875\u4e0d\u9700\u8981\u5411\u540e\u7aef\u53d1\u8bf7\u6c42\uff0c\u9875\u9762\u5207\u6362\u901f\u5ea6\u5feb\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u7f3a\u70b9\uff1a<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u6570\u636e\u91cf\u5927\u65f6\uff08\u5982 10,000 \u6761\uff09\uff0c\u521d\u59cb\u52a0\u8f7d\u901f\u5ea6\u6162\uff0c\u524d\u7aef\u5185\u5b58\u5360\u7528\u5927\u3002<\/li>\n\n\n\n<li>\u6570\u636e\u7684\u5b9e\u65f6\u6027\u5dee\uff0c\u65e0\u6cd5\u52a8\u6001\u83b7\u53d6\u540e\u7aef\u66f4\u65b0\u7684\u6570\u636e\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>2. \u670d\u52a1\u7aef\u5206\u9875\uff08Server-side Pagination\uff09<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7279\u70b9\uff1a<\/strong><br>\u524d\u7aef\u6bcf\u6b21\u6362\u9875\u90fd\u5411\u540e\u7aef\u53d1\u9001\u8bf7\u6c42\uff0c\u540e\u7aef\u901a\u8fc7\u5206\u9875\u67e5\u8be2\uff08<code>LIMIT<\/code> \u548c <code>OFFSET<\/code>\uff09\u8fd4\u56de\u5f53\u524d\u9875\u7684\u6570\u636e\u3002<\/li>\n\n\n\n<li><strong>\u4f18\u70b9\uff1a<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u6570\u636e\u91cf\u5927\u65f6\u6027\u80fd\u4f18\u5f02\uff0c\u521d\u59cb\u52a0\u8f7d\u5feb\uff0c\u524d\u7aef\u5185\u5b58\u5360\u7528\u5c0f\u3002<\/li>\n\n\n\n<li>\u652f\u6301\u6570\u636e\u7684\u52a8\u6001\u66f4\u65b0\uff0c\u6bcf\u6b21\u83b7\u53d6\u6700\u65b0\u6570\u636e\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u7f3a\u70b9\uff1a<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u6bcf\u6b21\u6362\u9875\u9700\u8981\u53d1\u9001\u7f51\u7edc\u8bf7\u6c42\uff0c\u53d7\u7f51\u7edc\u5ef6\u8fdf\u5f71\u54cd\u3002<\/li>\n\n\n\n<li>\u9700\u8981\u540e\u7aef\u5b9e\u73b0\u5206\u9875\u903b\u8f91\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u670d\u52a1\u7aef\u5206\u9875\u524d\u7aef\u4e5f\u8981\u5206\u9875\u5c55\u793a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u524d\u7aef\u5206\u9875\u4ee3\u7801uni-app:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\tdata() {\n\t\treturn {\n\t\t\tusers: &#91;], \/\/ \u7528\u6237\u5217\u8868\n\t\t\tpageNum: 1, \/\/ \u5f53\u524d\u9875\u7801\n\t\t\tpageSize: 5, \/\/ \u6bcf\u9875\u663e\u793a\u6761\u6570\n\t\t\tpages: 1, \/\/ \u603b\u9875\u6570\n\t\t};\n\t},\n\tmethods: {\n\t\t\/\/ \u83b7\u53d6\u5206\u9875\u6570\u636e\n\t\tgetPage(page) {\n\t\t\tif (page &lt; 1 || page > this.pages) return;\n\n\t\t\tuni.request({\n\t\t\t\turl: \"http:\/\/localhost:8081\/user\/page\",\n\t\t\t\tmethod: \"GET\",\n\t\t\t\tdata: {\n\t\t\t\t\tpageNum: page,\n\t\t\t\t\tpageSize: this.pageSize,\n\t\t\t\t},\n\t\t\t\tsuccess: (res) => {\n\t\t\t\t\tif (res.statusCode === 200) {\n\t\t\t\t\t\tconst data = res.data;\n\t\t\t\t\t\tthis.users = data.list; \/\/ \u66f4\u65b0\u7528\u6237\u5217\u8868\n\t\t\t\t\t\tthis.pageNum = data.pageNum; \/\/ \u66f4\u65b0\u5f53\u524d\u9875\u7801\n\t\t\t\t\t\tthis.pages = data.pages; \/\/ \u66f4\u65b0\u603b\u9875\u6570\n\t\t\t\t\t} else {\n\t\t\t\t\t\tuni.showToast({\n\t\t\t\t\t\t\ttitle: \"\u6570\u636e\u52a0\u8f7d\u5931\u8d25\",\n\t\t\t\t\t\t\ticon: \"none\",\n\t\t\t\t\t\t});\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\tfail: () => {\n\t\t\t\t\tuni.showToast({\n\t\t\t\t\t\ttitle: \"\u8bf7\u6c42\u5931\u8d25\uff0c\u8bf7\u68c0\u67e5\u7f51\u7edc\",\n\t\t\t\t\t\ticon: \"none\",\n\t\t\t\t\t});\n\t\t\t\t},\n\t\t\t});\n\t\t},<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u540e\u7aef\u5206\u9875\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Controller\u5c42\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>@GetMapping(value = \"\/page\")\npublic ResponseEntity&lt;PageInfo&lt;User>> getUsersByPage(\n        @RequestParam(value = \"pageNum\", defaultValue = \"1\") int pageNum,\n        @RequestParam(value = \"pageSize\", defaultValue = \"5\") int pageSize) {\n    PageInfo&lt;User> pageInfo = userSerive.selectUsersByPage(pageNum, pageSize);\n    if (pageInfo.getList().isEmpty()) {\n        return ResponseEntity.<em>status<\/em>(HttpStatus.<em>NO_CONTENT<\/em>).body(null);\n    }\n    return ResponseEntity.<em>ok<\/em>(pageInfo);\n}\n\nMapper\u5c42\uff1a\n    \/\/ \u5206\u9875\u67e5\u8be2\n    List&lt;User> selectByPage(@Param(\"offset\") int offset, @Param(\"limit\") int limit);<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5206\u9875\u5e76\u4e0d\u662f\u5c06\u6240\u6709\u6570\u636e\u67e5\u8be2\u51fa\u6765\u540e\u518d\u5206\u9875\uff0c\u800c\u662f\u901a\u8fc7\u6570\u636e\u5e93\u7684 LIMIT \u8bed\u53e5\u76f4\u63a5\u4ece\u6570\u636e\u6e90\u4e2d\u63d0\u53d6\u5f53\u524d\u9875\u7684\u6570\u636e\u3002MyB [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,3],"tags":[],"class_list":["post-468","post","type-post","status-publish","format-standard","hentry","category-java","category-3"],"_links":{"self":[{"href":"https:\/\/www.huangkeqin.cn\/index.php\/wp-json\/wp\/v2\/posts\/468","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.huangkeqin.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.huangkeqin.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.huangkeqin.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.huangkeqin.cn\/index.php\/wp-json\/wp\/v2\/comments?post=468"}],"version-history":[{"count":3,"href":"https:\/\/www.huangkeqin.cn\/index.php\/wp-json\/wp\/v2\/posts\/468\/revisions"}],"predecessor-version":[{"id":472,"href":"https:\/\/www.huangkeqin.cn\/index.php\/wp-json\/wp\/v2\/posts\/468\/revisions\/472"}],"wp:attachment":[{"href":"https:\/\/www.huangkeqin.cn\/index.php\/wp-json\/wp\/v2\/media?parent=468"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.huangkeqin.cn\/index.php\/wp-json\/wp\/v2\/categories?post=468"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.huangkeqin.cn\/index.php\/wp-json\/wp\/v2\/tags?post=468"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}