{"id":62045,"date":"2024-10-13T15:43:23","date_gmt":"2024-10-13T07:43:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/62045\/"},"modified":"2024-10-13T15:43:23","modified_gmt":"2024-10-13T07:43:23","slug":"java%e5%af%a6%e6%88%b0%ef%bc%9ahutool-db%e5%af%a6%e7%8f%be%e5%a4%9a%e6%95%b8%e6%93%9a%e6%ba%90%e9%85%8d%e7%bd%ae","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/62045\/","title":{"rendered":"Java\u5be6\u6230\uff1ahutool-db\u5be6\u73fe\u591a\u6578\u64da\u6e90\u914d\u7f6e"},"content":{"rendered":"

Java\u5be6\u6230\uff1ahutool-db\u5be6\u73fe\u591a\u6578\u64da\u6e90\u914d\u7f6e<\/h1>\n

\u5728\u7576\u4eca\u7684\u61c9\u7528\u958b\u767c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u4f7f\u7528\u5df2\u7d93\u6210\u70ba\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002\u96a8\u8457\u696d\u52d9\u9700\u6c42\u7684\u589e\u9577\uff0c\u8a31\u591a\u61c9\u7528\u9700\u8981\u540c\u6642\u9023\u63a5\u591a\u500b\u6578\u64da\u6e90\u3002\u9019\u6642\uff0c\u9078\u64c7\u5408\u9069\u7684\u5de5\u5177\u4f86\u7ba1\u7406\u9019\u4e9b\u6578\u64da\u6e90\u5c31\u986f\u5f97\u5c24\u70ba\u91cd\u8981\u3002Hutool\u662f\u4e00\u500b\u8f15\u91cf\u7d1a\u7684Java\u5de5\u5177\u5eab\uff0c\u5176\u4e2d\u7684hutool-db\u6a21\u584a\u63d0\u4f9b\u4e86\u7c21\u55ae\u800c\u5f37\u5927\u7684\u6578\u64da\u5eab\u64cd\u4f5c\u529f\u80fd\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528hutool-db\u5be6\u73fe\u591a\u6578\u64da\u6e90\u914d\u7f6e\u3002<\/p>\n

Hutool-db\u7c21\u4ecb<\/h2>\n

Hutool\u662f\u4e00\u500b\u958b\u6e90\u7684Java\u5de5\u5177\u5eab\uff0c\u65e8\u5728\u63d0\u9ad8\u958b\u767c\u6548\u7387\u3002\u5176hutool-db\u6a21\u584a\u5c08\u6ce8\u65bc\u6578\u64da\u5eab\u64cd\u4f5c\uff0c\u652f\u6301\u591a\u7a2e\u6578\u64da\u5eab\uff0c\u5305\u62ecMySQL\u3001Oracle\u3001PostgreSQL\u7b49\u3002\u9019\u500b\u6a21\u584a\u63d0\u4f9b\u4e86\u7c21\u55ae\u7684API\u4f86\u9032\u884c\u6578\u64da\u5eab\u7684\u589e\u522a\u6539\u67e5\u64cd\u4f5c\uff0c\u4e26\u4e14\u652f\u6301\u9023\u63a5\u6c60\u7684\u7ba1\u7406\u3002<\/p>\n

\u591a\u6578\u64da\u6e90\u914d\u7f6e\u7684\u5fc5\u8981\u6027<\/h2>\n

\u5728\u5be6\u969b\u958b\u767c\u4e2d\uff0c\u61c9\u7528\u53ef\u80fd\u9700\u8981\u5f9e\u4e0d\u540c\u7684\u6578\u64da\u6e90\u4e2d\u8b80\u53d6\u6216\u5beb\u5165\u6578\u64da\u3002\u4f8b\u5982\uff0c\u4e00\u500b\u96fb\u5546\u5e73\u53f0\u53ef\u80fd\u9700\u8981\u5f9e\u7528\u6236\u6578\u64da\u5eab\u548c\u8a02\u55ae\u6578\u64da\u5eab\u4e2d\u7372\u53d6\u4fe1\u606f\u3002\u9019\u5c31\u9700\u8981\u914d\u7f6e\u591a\u500b\u6578\u64da\u6e90\uff0c\u4ee5\u4fbf\u6839\u64da\u4e0d\u540c\u7684\u696d\u52d9\u9700\u6c42\u9032\u884c\u64cd\u4f5c\u3002<\/p>\n

\u4f7f\u7528Hutool-db\u914d\u7f6e\u591a\u6578\u64da\u6e90<\/h2>\n

\u4ee5\u4e0b\u662f\u4f7f\u7528Hutool-db\u5be6\u73fe\u591a\u6578\u64da\u6e90\u914d\u7f6e\u7684\u6b65\u9a5f\uff1a<\/p>\n

1. \u6dfb\u52a0\u4f9d\u8cf4<\/h3>\n

\u9996\u5148\uff0c\u78ba\u4fdd\u5728\u4f60\u7684\u9805\u76ee\u4e2d\u6dfb\u52a0\u4e86Hutool\u7684\u4f9d\u8cf4\u3002\u5982\u679c\u4f60\u4f7f\u7528Maven\uff0c\u53ef\u4ee5\u5728pom.xml\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u5167\u5bb9\uff1a<\/p>\n

\n<dependency>\n    <groupId>cn.hutool<\/groupId>\n    <artifactId>hutool-db<\/artifactId>\n    <version>5.8.10<\/version>\n<\/dependency>\n<\/code><\/pre>\n
2. \u914d\u7f6e\u6578\u64da\u6e90<\/h3>\n
\u63a5\u4e0b\u4f86\uff0c\u5275\u5efa\u4e00\u500b\u914d\u7f6e\u985e\u4f86\u7ba1\u7406\u591a\u500b\u6578\u64da\u6e90\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff1a<\/p>\n
\nimport cn.hutool.db.Db;\nimport cn.hutool.db.Entity;\nimport cn.hutool.db.ds.simple.SimpleDataSource;\n\nimport javax.sql.DataSource;\n\npublic class DataSourceConfig {\n    private static final DataSource dataSource1 = new SimpleDataSource(\"jdbc:mysql:\/\/localhost:3306\/db1\", \"user1\", \"password1\");\n    private static final DataSource dataSource2 = new SimpleDataSource(\"jdbc:mysql:\/\/localhost:3306\/db2\", \"user2\", \"password2\");\n\n    public static void main(String[] args) {\n        \/\/ \u4f7f\u7528\u6578\u64da\u6e901\n        Db.use(dataSource1).query(\"SELECT * FROM table1\");\n        \n        \/\/ \u4f7f\u7528\u6578\u64da\u6e902\n        Db.use(dataSource2).query(\"SELECT * FROM table2\");\n    }\n}\n<\/code><\/pre>\n
3. \u4f7f\u7528\u6578\u64da\u6e90\u9032\u884c\u64cd\u4f5c<\/h3>\n
\u5728\u914d\u7f6e\u597d\u6578\u64da\u6e90\u5f8c\uff0c\u53ef\u4ee5\u4f7f\u7528Hutool-db\u63d0\u4f9b\u7684API\u9032\u884c\u6578\u64da\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u67e5\u8a62\u6578\u64da\u7684\u793a\u4f8b\uff1a<\/p>\n
\npublic void queryData() {\n    \/\/ \u67e5\u8a62\u6578\u64da\u6e901\n    List results1 = Db.use(dataSource1).query(\"SELECT * FROM users\");\n    \n    \/\/ \u67e5\u8a62\u6578\u64da\u6e902\n    List results2 = Db.use(dataSource2).query(\"SELECT * FROM orders\");\n    \n    \/\/ \u8f38\u51fa\u7d50\u679c\n    results1.forEach(System.out::println);\n    results2.forEach(System.out::println);\n}\n<\/code><\/pre>\n
\u7e3d\u7d50<\/h2>\n
\u901a\u904e\u4f7f\u7528Hutool-db\uff0c\u6211\u5011\u53ef\u4ee5\u8f15\u9b06\u5730\u5be6\u73fe\u591a\u6578\u64da\u6e90\u7684\u914d\u7f6e\u548c\u64cd\u4f5c\u3002\u9019\u4e0d\u50c5\u63d0\u9ad8\u4e86\u958b\u767c\u6548\u7387\uff0c\u9084\u4f7f\u5f97\u6578\u64da\u7ba1\u7406\u8b8a\u5f97\u66f4\u52a0\u9748\u6d3b\u3002\u5728\u7576\u524d\u7684\u958b\u767c\u74b0\u5883\u4e2d\uff0c\u9078\u64c7\u5408\u9069\u7684\u5de5\u5177\u4f86\u8655\u7406\u6578\u64da\u5eab\u64cd\u4f5c\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528\u9999\u6e2fVPS<\/a>\u4f86\u90e8\u7f72\u60a8\u7684\u61c9\u7528\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u60a8\u7684\u6578\u64da\u5eab\u64cd\u4f5c\u66f4\u52a0\u7a69\u5b9a\u548c\u9ad8\u6548\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22Java\u5be6\u6230\u4e2d\u7684hutool-db\uff0c\u5b78\u7fd2\u5982\u4f55\u5be6\u73fe\u591a\u6578\u64da\u6e90\u914d\u7f6e\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\u8207\u9748\u6d3b\u6027\u3002<\/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-62045","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62045","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=62045"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62045\/revisions"}],"predecessor-version":[{"id":62046,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62045\/revisions\/62046"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=62045"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=62045"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=62045"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}