{"id":35635,"date":"2024-11-26T08:10:57","date_gmt":"2024-11-26T00:10:57","guid":{"rendered":"https:\/\/fwq.ai\/blog\/35635\/"},"modified":"2024-11-26T08:10:57","modified_gmt":"2024-11-26T00:10:57","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:\/\/fwq.ai\/blog\/35635\/","title":{"rendered":"Java JDBC \u80fd\u5c06\u6570\u636e\u5e93\u67e5\u8be2\u7ed3\u679c\u8f6c\u6362\u4e3aHashMap\u5417\uff1f"},"content":{"rendered":"

\"Java<\/p>\n

Java JDBC \u53ef\u8fd4\u56de HashMap \u5417\uff1f<\/strong><\/p>\n

Python \u4e2d\u4f7f\u7528 cursorclass=py.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

\u7b54\u6848\uff1a<\/strong><\/p>\n

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

\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n

\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

\u4ee5\u4e0a\u5c31\u662fJava JDBC \u80fd\u5c06\u6570\u636e\u5e93\u67e5\u8be2\u7ed3\u679c\u8f6c\u6362\u4e3aHashMap\u5417\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"

Java JDBC \u53ef\u8fd4\u56de HashMap \u5417\uff1f Python \u4e2d\u4f7f\u7528 cursorclass=py.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 \u7b54\u6848\uff1a 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 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \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 \u4ee5\u4e0a\u5c31\u662fJava JDBC \u80fd\u5c06\u6570\u636e\u5e93\u67e5\u8be2\u7ed3\u679c\u8f6c\u6362\u4e3aHashMap\u5417\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-35635","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/35635","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=35635"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/35635\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=35635"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=35635"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=35635"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}