{"id":200536,"date":"2025-05-06T09:23:21","date_gmt":"2025-05-06T01:23:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200536\/"},"modified":"2025-05-06T09:23:21","modified_gmt":"2025-05-06T01:23:21","slug":"mybatis-%e4%b8%ad%e5%a6%82%e4%bd%95%e5%a4%84%e7%90%86%e5%8c%85%e5%90%ab%e7%89%b9%e6%ae%8a%e7%ac%a6%e5%8f%b7%e7%9a%84%e5%ad%97%e7%ac%a6%e4%b8%b2%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200536\/","title":{"rendered":"Mybatis \u4e2d\u5982\u4f55\u5904\u7406\u5305\u542b\u7279\u6b8a\u7b26\u53f7\u7684\u5b57\u7b26\u4e32\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

Mybatis \u4e2d\u5982\u4f55\u5904\u7406\u5305\u542b\u7279\u6b8a\u7b26\u53f7\u7684\u5b57\u7b26\u4e32\uff1f<\/h1>\n

\u76ee\u524d\u4e3b\u673a\u5b9d\u8d1d\u4e0a\u5df2\u7ecf\u6709\u5f88\u591a\u5173\u4e8e\u7684\u6587\u7ae0\u4e86\uff0c\u81ea\u5df1\u5728\u521d\u6b21\u9605\u8bfb\u8fd9\u4e9b\u6587\u7ae0\u4e2d\uff0c\u4e5f\u89c1\u8bc6\u5230\u4e86\u5f88\u591a\u5b66\u4e60\u601d\u8def\uff1b\u90a3\u4e48\u672c\u6587\uff0c\u4e5f\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6\uff0c\u5982\u679c\u9605\u8bfb\u5b8c\u540e\u771f\u7684\u5bf9\u4f60\u5b66\u4e60\u6709\u5e2e\u52a9\uff0c\u6b22\u8fce\u52a8\u52a8\u624b\u6307\uff0c\u8bc4\u8bba\u7559\u8a00\u5e76\u5206\u4eab~<\/p>\n

<\/p>\n

mybatis \u4e2d\u7279\u6b8a\u7b26\u53f7\u5b57\u7b26\u4e32\u7684\u5904\u7406<\/strong><\/p>\n

\u5728 mybatis \u4e2d\uff0c\u5982\u679c\u66f4\u65b0\u8bed\u53e5\u4e2d\u4f20\u5165\u7684\u5b57\u7b26\u4e32\u5305\u542b\u7279\u6b8a\u7b26\u53f7\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4 sql \u8bed\u6cd5\u9519\u8bef\u3002\u4e00\u79cd\u5e38\u89c1\u7684\u9519\u8bef\u539f\u56e0\u662f\u7279\u6b8a\u7b26\u53f7\u662f sql \u5173\u952e\u8bcd\u3002<\/p>\n

\u4f8b\u5982\uff0c\u4ee5\u4e0b\u66f4\u65b0\u8bed\u53e5\u53ef\u80fd\u629b\u51fa\u5f02\u5e38\uff0c\u5982\u679c separator \u53c2\u6570\u662f ? \u6216 ! \u4e4b\u7c7b\u7684\u7279\u6b8a\u7b26\u53f7\uff1a<\/p>\n

<update id=\"update\">\n    UPDATE d_table SET\n    separator = #{separator, jdbcType=VARCHAR}\n    WHERE id = #{id, jdbcType=BIGINT}\n<\/update><\/pre>\n
\u89e3\u51b3\u65b9\u6cd5<\/strong><\/p>\n
\u8981\u89e3\u51b3\u6b64\u95ee\u9898\uff0c\u9700\u8981\u627e\u5230\u95ee\u9898\u7684\u6839\u672c\u539f\u56e0\uff0c\u5373 separator \u672c\u8eab\u662f\u4e00\u4e2a sql \u5173\u952e\u8bcd\u3002\u8981\u89e3\u51b3\u6b64\u95ee\u9898\uff0c\u53ef\u4ee5\u91c7\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a<\/p>\n
    \n
  1. \u8f6c\u4e49\u7279\u6b8a\u5b57\u7b26\uff1a<\/strong>\u5728 jdbc \u7ea7\u522b\u5bf9\u7279\u6b8a\u5b57\u7b26\u8fdb\u884c\u8f6c\u4e49\u3002\u8fd9\u53ef\u4ee5\u901a\u8fc7\u5728\u7279\u6b8a\u5b57\u7b26\u524d\u52a0\u53cd\u659c\u6760 () \u6765\u5b9e\u73b0\u3002\u4f8b\u5982\uff0cseparator = ‘!’`.<\/li>\n
  2. \u4f7f\u7528\u9884\u7f16\u8bd1\u8bed\u53e5\uff1a<\/strong>\u4f7f\u7528\u9884\u7f16\u8bd1\u8bed\u53e5\u53ef\u4ee5\u9632\u6b62 sql \u6ce8\u5165\u653b\u51fb\uff0c\u5e76\u5141\u8bb8\u81ea\u52a8\u8f6c\u4e49\u7279\u6b8a\u5b57\u7b26\u3002\u9884\u7f16\u8bd1\u8bed\u53e5\u4f7f\u7528\u95ee\u53f7 (?) \u4f5c\u4e3a\u5360\u4f4d\u7b26\uff0cmybatis \u4f1a\u81ea\u52a8\u5904\u7406\u8f6c\u4e49\u3002\u4f8b\u5982\uff0cseparator = ?\u3002<\/li>\n
  3. \u4f7f\u7528 mybatis \u522b\u540d\uff1a<\/strong>mybatis \u522b\u540d\u5141\u8bb8\u4f7f\u7528\u522b\u540d\u6765\u5f15\u7528\u5217\u540d\u3002\u8fd9\u53ef\u4ee5\u9632\u6b62\u4e0e sql \u5173\u952e\u8bcd\u51b2\u7a81\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528 column_alias \u4f5c\u4e3a separator \u5217\u7684\u522b\u540d\uff0c\u7136\u540e\u5728\u66f4\u65b0\u8bed\u53e5\u4e2d\u4f7f\u7528\u522b\u540d\u3002<\/li>\n<\/ol>\n
    \u597d\u4e86\uff0c\u672c\u6587\u5230\u6b64\u7ed3\u675f\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u300aMybatis \u4e2d\u5982\u4f55\u5904\u7406\u5305\u542b\u7279\u6b8a\u7b26\u53f7\u7684\u5b57\u7b26\u4e32\uff1f\u300b\uff0c\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff01\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff0c\u7ed9\u5927\u5bb6\u5206\u4eab\u66f4\u591a\u6570\u636e\u5e93\u77e5\u8bc6\uff01<\/p>\n
    \n
    \n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
    Mybatis \u4e2d\u5982\u4f55\u5904\u7406\u5305\u542b\u7279...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-200536","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200536","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=200536"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200536\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200536"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200536"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200536"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}