{"id":216,"date":"2014-12-31T23:36:12","date_gmt":"2014-12-31T15:36:12","guid":{"rendered":"http:\/\/weitaoc.com\/?p=216"},"modified":"2014-12-31T23:38:42","modified_gmt":"2014-12-31T15:38:42","slug":"mybaits%e5%8f%82%e6%95%b0%e6%8e%92%e5%ba%8f","status":"publish","type":"post","link":"http:\/\/weitaoc.com\/?p=216","title":{"rendered":"mybaits\u53c2\u6570\u6392\u5e8f"},"content":{"rendered":"

\u4eca\u5929\u78b0\u5230\u4e00\u5f88\u50bb\u7f3a\u7684\u95ee\u9898\uff0c\u4ee5\u524d\u6ca1\u600e\u4e48\u6ce8\u610f\uff0c\u4eca\u5929\u7528\u5230\u5f88\u591a\u52a8\u6001\u6392\u5e8f\uff0c\u5bf9\uff0cORDER – BY\uff0c\u8bf4\u7684\u5c31\u662f\u4f60\u3002<\/p>\n

\u7a81\u7136\u6211\u5c31\u50bb\u7f3a\u4e86\uff0c\u600e\u4e48\u8c03\u8bd5\u51fa\u6765\u7684\u6570\u636e\u90fd\u4e0d\u5bf9\u3002\u67e5\u770bmysql\u7684\u6267\u884c\u8bb0\u5f55\u3002<\/p>\n

1
<\/div><\/td>
WHERE<\/span> is_deleted =<\/span> 0<\/span> ORDER<\/span> -<\/span> BY<\/span> 'viewCount'<\/span> 'desc'<\/span> LIMIT<\/span> 0<\/span>,<\/span>10<\/span><\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

why? \u5582\uff0c\u54ea\u91cc\u6765\u7684\u5f15\u53f7\uff1f<\/p>\n

\u8d76\u5feb\u5ea6\u5a18\uff0c\u539f\u6765\u6211\u7684\u53c2\u6570\u7528\u7684\u662f#{xxx}\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u4f7f\u7528#{}\u683c\u5f0f\u7684\u8bed\u6cd5\u4f1a\u5bfc\u81f4MyBatis\u521b\u5efa\u9884\u5904\u7406\u8bed\u53e5\u5c5e\u6027\u5e76\u4ee5\u5b83\u4e3a\u80cc\u666f\u8bbe\u7f6e\u5b89\u5168\u7684\u503c\uff08\u6bd4\u5982?\uff09\u3002\u8fd9\u6837\u505a\u5f88\u5b89\u5168\uff0c\u5f88\u8fc5\u901f\u4e5f\u662f\u9996\u9009\u505a\u6cd5\uff0c\u6709\u65f6\u4f60\u53ea\u662f\u60f3\u76f4\u63a5\u5728SQL\u8bed\u53e5\u4e2d\u63d2\u5165\u4e00\u4e2a\u4e0d\u6539\u53d8\u7684\u5b57\u7b26\u4e32\u3002\u6bd4\u5982\uff0c\u50cfORDER – BY\uff0c\u4f60\u53ef\u4ee5\u8fd9\u6837\u6765\u4f7f\u7528\uff1a<\/p>\n

1
<\/div><\/td>
ORDER<\/span> -<\/span> BY<\/span> ${<\/span>columnName}<\/span><\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

\u8fd9\u91ccMyBatis\u4e0d\u4f1a\u4fee\u6539\u6216\u8f6c\u4e49\u5b57\u7b26\u4e32\u3002<\/p>\n

 <\/p>\n

\u91cd\u8981\uff1a\u63a5\u53d7\u4ece\u7528\u6237\u8f93\u51fa\u7684\u5185\u5bb9\u5e76\u63d0\u4f9b\u7ed9\u8bed\u53e5\u4e2d\u4e0d\u53d8\u7684\u5b57\u7b26\u4e32\uff0c\u8fd9\u6837\u505a\u662f\u4e0d\u5b89\u5168\u7684\u3002\u8fd9\u4f1a\u5bfc\u81f4\u6f5c\u5728\u7684SQL\u6ce8\u5165\u653b\u51fb\uff0c\u56e0\u6b64\u4f60\u4e0d\u5e94\u8be5\u5141\u8bb8\u7528\u6237\u8f93\u5165\u8fd9\u4e9b\u5b57\u6bb5\uff0c\u6216\u8005\u901a\u5e38\u81ea\u884c\u8f6c\u4e49\u5e76\u68c0\u67e5\u3002<\/strong><\/p>\n

\"u=2622320118,1515445201&fm=21&gp=0\"<\/a><\/p>\n

\u8f6c\u8f7d\u8bf7\u6ce8\u660e\uff1a\u8ff7\u8def\u7684\u8001\u9f20<\/a> » mybaits\u53c2\u6570\u6392\u5e8f<\/a><\/p>","protected":false},"excerpt":{"rendered":"

\u4eca\u5929\u78b0\u5230\u4e00\u5f88\u50bb\u7f3a\u7684\u95ee\u9898\uff0c\u4ee5\u524d\u6ca1\u600e\u4e48\u6ce8\u610f\uff0c\u4eca\u5929\u7528\u5230\u5f88\u591a\u52a8\u6001\u6392\u5e8f\uff0c\u5bf9\uff0cORDER – BY\uff0c\u8bf4\u7684\u5c31\u662f\u4f60\u3002 \u7a81\u7136\u6211\u5c31\u50bb\u7f3a\u4e86\uff0c\u600e\u4e48\u8c03\u8bd5\u51fa\u6765\u7684\u6570\u636e\u90fd\u4e0d\u5bf9\u3002\u67e5\u770bmysql\u7684\u6267\u884c\u8bb0\u5f55\u3002 1WHERE is_deleted = 0 ORDER – BY […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[27],"tags":[43],"class_list":["post-216","post","type-post","status-publish","format-standard","hentry","category-database","tag-mybaits"],"views":4815,"_links":{"self":[{"href":"http:\/\/weitaoc.com\/index.php?rest_route=\/wp\/v2\/posts\/216","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/weitaoc.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/weitaoc.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/weitaoc.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/weitaoc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=216"}],"version-history":[{"count":0,"href":"http:\/\/weitaoc.com\/index.php?rest_route=\/wp\/v2\/posts\/216\/revisions"}],"wp:attachment":[{"href":"http:\/\/weitaoc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=216"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/weitaoc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=216"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/weitaoc.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=216"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}