{"id":14310,"date":"2023-12-04T01:24:27","date_gmt":"2023-12-03T17:24:27","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=14310"},"modified":"2023-12-04T01:25:15","modified_gmt":"2023-12-03T17:25:15","slug":"mybatis-de-resulttype-resultmap-de-qu-bie","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/04\/mybatis-de-resulttype-resultmap-de-qu-bie\/","title":{"rendered":"MyBatis \u7684 resultType resultMap \u7684\u533a\u522b\uff1f"},"content":{"rendered":"<p><code>resultType<\/code> \u548c <code>resultMap<\/code> \u662f MyBatis \u4e2d\u7528\u4e8e\u7ed3\u679c\u96c6\u6620\u5c04\u7684\u4e24\u79cd\u65b9\u5f0f\uff0c\u5b83\u4eec\u6709\u4ee5\u4e0b\u533a\u522b\uff1a<\/p>\n<h3><code>resultType<\/code>\uff1a<\/h3>\n<ul>\n<li><strong>\u4f5c\u7528<\/strong>\uff1a<code>resultType<\/code> \u6307\u5b9a\u4e86\u67e5\u8be2\u7ed3\u679c\u5c06\u88ab\u6620\u5c04\u5230\u7684\u76ee\u6807 Java \u5bf9\u8c61\u7c7b\u578b\u3002<\/li>\n<li><strong>\u7528\u6cd5<\/strong>\uff1a\u53ef\u4ee5\u76f4\u63a5\u6307\u5b9a\u76ee\u6807\u5bf9\u8c61\u7684\u7c7b\u578b\uff0cMyBatis \u5c06\u7ed3\u679c\u96c6\u6620\u5c04\u5230\u8be5\u7c7b\u578b\u7684\u5bf9\u8c61\u4e2d\u3002<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre data-language=XML><code class=\"language-markup  line-numbers\">&lt;!-- XML \u6620\u5c04\u6587\u4ef6 --&gt;\n&lt;select id=\"getUser\" resultType=\"User\"&gt;\n    SELECT user_id, user_name FROM users WHERE id = #{id}\n&lt;\/select&gt;\n<\/code><\/pre>\n<ul>\n<li><strong>\u4f18\u70b9<\/strong>\uff1a\u7b80\u5355\u76f4\u63a5\uff0c\u9002\u7528\u4e8e\u7b80\u5355\u7684\u67e5\u8be2\uff0c\u4f46\u5bf9\u4e8e\u590d\u6742\u5bf9\u8c61\u7ed3\u6784\u6620\u5c04\u8f83\u4e3a\u5c40\u9650\u3002<\/li>\n<\/ul>\n<h3><code>resultMap<\/code>\uff1a<\/h3>\n<ul>\n<li><strong>\u4f5c\u7528<\/strong>\uff1a<code>resultMap<\/code> \u5141\u8bb8\u5f00\u53d1\u8005\u81ea\u5b9a\u4e49\u590d\u6742\u7684\u7ed3\u679c\u96c6\u5230\u5bf9\u8c61\u4e4b\u95f4\u7684\u6620\u5c04\u5173\u7cfb\u3002<\/li>\n<li><strong>\u7528\u6cd5<\/strong>\uff1a\u9700\u8981\u5728 XML \u6620\u5c04\u6587\u4ef6\u4e2d\u5b9a\u4e49\u4e00\u4e2a<code>resultMap<\/code>\uff0c\u5176\u4e2d\u5305\u542b\u4e86\u8be6\u7ec6\u7684\u6620\u5c04\u89c4\u5219\u3002<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre data-language=XML><code class=\"language-markup  line-numbers\">&lt;!-- XML \u6620\u5c04\u6587\u4ef6 --&gt;\n&lt;resultMap id=\"UserResultMap\" type=\"User\"&gt;\n    &lt;id property=\"id\" column=\"user_id\"\/&gt;\n    &lt;result property=\"username\" column=\"user_name\"\/&gt;\n    &lt;!-- \u5176\u4ed6\u6620\u5c04\u5173\u7cfb --&gt;\n&lt;\/resultMap&gt;\n\n&lt;select id=\"getUser\" resultMap=\"UserResultMap\"&gt;\n    SELECT user_id, user_name FROM users WHERE id = #{id}\n&lt;\/select&gt;\n<\/code><\/pre>\n<ul>\n<li><strong>\u4f18\u70b9<\/strong>\uff1a\u7075\u6d3b\u6027\u66f4\u9ad8\uff0c\u53ef\u4ee5\u5b9a\u4e49\u590d\u6742\u7684\u6620\u5c04\u5173\u7cfb\uff0c\u9002\u7528\u4e8e\u590d\u6742\u5bf9\u8c61\u7ed3\u6784\u7684\u6620\u5c04\u3002<\/li>\n<\/ul>\n<h3>\u603b\u7ed3\uff1a<\/h3>\n<ul>\n<li><code>resultType<\/code> \u662f\u5c06\u6574\u4e2a\u7ed3\u679c\u96c6\u76f4\u63a5\u6620\u5c04\u5230\u6307\u5b9a\u7c7b\u578b\u7684\u5bf9\u8c61\u3002<\/li>\n<li><code>resultMap<\/code> \u5141\u8bb8\u5b9a\u4e49\u66f4\u52a0\u7075\u6d3b\u548c\u590d\u6742\u7684\u6620\u5c04\u89c4\u5219\uff0c\u9002\u7528\u4e8e\u9700\u8981\u5b9a\u5236\u5316\u6620\u5c04\u7684\u60c5\u51b5\uff0c\u5c24\u5176\u9002\u5408\u590d\u6742\u5bf9\u8c61\u7ed3\u6784\u7684\u6620\u5c04\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>resultType \u548c resultMap \u662f MyBatis \u4e2d\u7528\u4e8e\u7ed3\u679c\u96c6\u6620\u5c04\u7684\u4e24\u79cd\u65b9\u5f0f\uff0c\u5b83\u4eec\u6709\u4ee5\u4e0b\u533a\u522b\uff1a [&hellip;]<\/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-14310","post","type-post","status-publish","format-standard","hentry","category-mybatis"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/14310","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=14310"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/14310\/revisions"}],"predecessor-version":[{"id":14311,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/14310\/revisions\/14311"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=14310"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=14310"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=14310"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}