{"id":203319,"date":"2025-05-22T12:45:37","date_gmt":"2025-05-22T04:45:37","guid":{"rendered":"https:\/\/server.hk\/cnblog\/203319\/"},"modified":"2025-05-22T12:45:37","modified_gmt":"2025-05-22T04:45:37","slug":"java-jdbc-%e8%83%bd%e5%b0%86%e6%95%b0%e6%8d%ae%e5%ba%93%e6%9f%a5%e8%af%a2%e7%bb%93%e6%9e%9c%e8%bd%ac%e6%8d%a2%e4%b8%bahashmap%e5%90%97%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/203319\/","title":{"rendered":"Java JDBC \u80fd\u5c06\u6570\u636e\u5e93\u67e5\u8be2\u7ed3\u679c\u8f6c\u6362\u4e3aHashMap\u5417\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Java JDBC \u80fd\u5c06\u6570\u636e\u5e93\u67e5\u8be2\u7ed3\u679c\u8f6c\u6362\u4e3aHashMap\u5417\uff1f<\/h1>\n<p>\u5927\u5bb6\u597d\uff0c\u4eca\u5929\u672c\u4eba\u7ed9\u5927\u5bb6\u5e26\u6765\u6587\u7ae0<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aJava JDBC \u80fd\u5c06\u6570\u636e\u5e93\u67e5\u8be2\u7ed3\u679c\u8f6c\u6362\u4e3aHashMap\u5417\uff1f\u300b<\/span>\uff0c\u6587\u4e2d\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span><\/span>\uff0c\u5982\u679c\u4f60\u5bf9<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u65b9\u9762\u7684\u77e5\u8bc6\u70b9\u611f\u5174\u8da3\uff0c\u90a3\u5c31\u8bf7\u5404\u4f4d\u670b\u53cb\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427~\u5e0c\u671b\u80fd\u771f\u6b63\u5e2e\u5230\u4f60\u4eec\uff0c\u8c22\u8c22\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241104\/17307243396728c1f3023b2.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>Java JDBC \u53ef\u8fd4\u56de HashMap \u5417\uff1f<\/strong><\/p>\n<p>Python \u4e2d\u4f7f\u7528 cursorclass=pymysql.cursors.DictCursor \u53ef\u4ee5\u5c06\u6570\u636e\u5e93\u67e5\u8be2\u7ed3\u679c\u8f6c\u6362\u4e3a\u5b57\u5178\u7c7b\u578b\u3002\u90a3\u4e48\uff0c\u5728 Java JDBC \u4e2d\uff0c\u662f\u5426\u6709\u7c7b\u4f3c\u7684\u65b9\u6cd5\u53ef\u4ee5\u8fd4\u56de HashMap \u5462\uff1f<\/p>\n<p><strong>\u7b54\u6848\uff1a<\/strong><\/p>\n<p>JDBC \u672c\u8eab\u5e76\u4e0d\u63d0\u4f9b\u5c06\u67e5\u8be2\u7ed3\u679c\u76f4\u63a5\u8f6c\u6362\u4e3a HashMap \u7684\u65b9\u5f0f\u3002JDBC \u8fd4\u56de\u7684\u6570\u636e\u7ed3\u6784\u662f ResultSetRow\uff0c\u5b83\u662f\u4e00\u4e2a\u53ea\u8bfb\u7684\u6570\u636e\u8868\u884c\u3002<\/p>\n<p>\u7136\u800c\uff0c\u4f60\u53ef\u4ee5\u901a\u8fc7\u4ee3\u7406\u81ea\u884c\u5c06 ResultSetRow \u8f6c\u6362\u4e3a HashMap\u3002\u4e00\u79cd\u65b9\u6cd5\u662f\u4f7f\u7528 ResultSetMapper \u63a5\u53e3\uff0c\u5b83\u63d0\u4f9b\u4e86\u5c06 ResultSet \u8f6c\u6362\u4e3a\u5176\u4ed6\u5bf9\u8c61\u7684\u65b9\u6cd5\u3002\u4f60\u53ef\u4ee5\u521b\u5efa\u81ea\u5df1\u7684 ResultSetMapper\uff0c\u5b83\u5c06\u6bcf\u884c\u6620\u5c04\u5230\u4e00\u4e2a HashMap\uff0c\u5e76\u5c06 HashMap \u653e\u5165\u5217\u8868\u4e2d\u3002<\/p>\n<p>\u672c\u7bc7\u5173\u4e8e\u300aJava JDBC \u80fd\u5c06\u6570\u636e\u5e93\u67e5\u8be2\u7ed3\u679c\u8f6c\u6362\u4e3aHashMap\u5417\uff1f\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java JDBC \u80fd\u5c06\u6570\u636e\u5e93\u67e5&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-203319","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203319","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=203319"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203319\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=203319"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=203319"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=203319"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}