{"id":62145,"date":"2024-10-13T16:34:16","date_gmt":"2024-10-13T08:34:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/62145\/"},"modified":"2024-10-13T16:34:16","modified_gmt":"2024-10-13T08:34:16","slug":"jdbc%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%9a%e5%9f%ba%e6%9c%ac%e6%ad%a5%e9%a9%9f%e6%a6%82%e8%a6%bd-%e7%b0%a1%e8%bf%b0jdbc%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab%e5%9f%ba%e6%9c%ac","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/62145\/","title":{"rendered":"JDBC\u9023\u63a5\u6578\u64da\u5eab\uff1a\u57fa\u672c\u6b65\u9a5f\u6982\u89bd (\u7c21\u8ff0jdbc\u9023\u63a5\u6578\u64da\u5eab\u57fa\u672c\u6b65\u9a5f)"},"content":{"rendered":"<h1 id=\"jdbc%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%9a%e5%9f%ba%e6%9c%ac%e6%ad%a5%e9%a9%9f%e6%a6%82%e8%a6%bd-RoBZucqjwW\">JDBC\u9023\u63a5\u6578\u64da\u5eab\uff1a\u57fa\u672c\u6b65\u9a5f\u6982\u89bd<\/h1>\n<p>Java Database Connectivity\uff08JDBC\uff09\u662f\u4e00\u500bJava API\uff0c\u5141\u8a31Java\u61c9\u7528\u7a0b\u5e8f\u8207\u5404\u7a2e\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002\u7121\u8ad6\u662f\u958b\u767c\u684c\u9762\u61c9\u7528\u7a0b\u5e8f\u9084\u662fWeb\u61c9\u7528\u7a0b\u5e8f\uff0cJDBC\u90fd\u662f\u4e00\u500b\u4e0d\u53ef\u6216\u7f3a\u7684\u5de5\u5177\u3002\u672c\u6587\u5c07\u7c21\u8981\u4ecb\u7d39\u4f7f\u7528JDBC\u9023\u63a5\u6578\u64da\u5eab\u7684\u57fa\u672c\u6b65\u9a5f\u3002<\/p>\n<h2 id=\"1-%e6%b7%bb%e5%8a%a0jdbc%e9%a9%85%e5%8b%95%e7%a8%8b%e5%ba%8f-RoBZucqjwW\">1. \u6dfb\u52a0JDBC\u9a45\u52d5\u7a0b\u5e8f<\/h2>\n<p>\u5728\u4f7f\u7528JDBC\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u78ba\u4fdd\u5df2\u7d93\u6dfb\u52a0\u4e86\u76f8\u61c9\u7684JDBC\u9a45\u52d5\u7a0b\u5e8f\u3002\u4e0d\u540c\u7684\u6578\u64da\u5eab\u6709\u4e0d\u540c\u7684\u9a45\u52d5\u7a0b\u5e8f\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>MySQL: <code>mysql-connector-java-x.x.x.jar<\/code><\/li>\n<li>PostgreSQL: <code>postgresql-x.x.x.jar<\/code><\/li>\n<li>Oracle: <code>ojdbc8.jar<\/code><\/li>\n<\/ul>\n<p>\u9019\u4e9b\u9a45\u52d5\u7a0b\u5e8f\u53ef\u4ee5\u5f9e\u5404\u81ea\u7684\u5b98\u65b9\u7db2\u7ad9\u4e0b\u8f09\uff0c\u4e26\u6dfb\u52a0\u5230Java\u9805\u76ee\u7684\u985e\u8def\u5f91\u4e2d\u3002<\/p>\n<h2 id=\"2-%e5%8a%a0%e8%bc%89jdbc%e9%a9%85%e5%8b%95%e7%a8%8b%e5%ba%8f-RoBZucqjwW\">2. \u52a0\u8f09JDBC\u9a45\u52d5\u7a0b\u5e8f<\/h2>\n<p>\u5728Java\u4ee3\u78bc\u4e2d\uff0c\u9700\u8981\u52a0\u8f09JDBC\u9a45\u52d5\u7a0b\u5e8f\u3002\u9019\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u4ee3\u78bc\u5be6\u73fe\uff1a<\/p>\n<pre><code>Class.forName(\"com.mysql.cj.jdbc.Driver\");<\/code><\/pre>\n<p>\u9019\u884c\u4ee3\u78bc\u544a\u8a34Java\u865b\u64ec\u6a5f\uff08JVM\uff09\u52a0\u8f09MySQL\u7684JDBC\u9a45\u52d5\u7a0b\u5e8f\u3002\u5c0d\u65bc\u5176\u4ed6\u6578\u64da\u5eab\uff0c\u9a45\u52d5\u7a0b\u5e8f\u7684\u985e\u540d\u6703\u6709\u6240\u4e0d\u540c\u3002<\/p>\n<h2 id=\"3-%e5%bb%ba%e7%ab%8b%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5-RoBZucqjwW\">3. \u5efa\u7acb\u6578\u64da\u5eab\u9023\u63a5<\/h2>\n<p>\u4f7f\u7528DriverManager\u985e\u4f86\u5efa\u7acb\u8207\u6578\u64da\u5eab\u7684\u9023\u63a5\u3002\u4ee5\u4e0b\u662f\u5efa\u7acb\u9023\u63a5\u7684\u57fa\u672c\u4ee3\u78bc\uff1a<\/p>\n<pre><code>String url = \"jdbc:mysql:\/\/localhost:3306\/yourDatabase\";\nString user = \"yourUsername\";\nString password = \"yourPassword\";\n\nConnection connection = DriverManager.getConnection(url, user, password);<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c<code>url<\/code>\u5305\u542b\u4e86\u6578\u64da\u5eab\u7684\u5730\u5740\u3001\u7aef\u53e3\u548c\u6578\u64da\u5eab\u540d\u7a31\uff0c\u800c<code>user<\/code>\u548c<code>password<\/code>\u5247\u662f\u7528\u65bc\u8eab\u4efd\u9a57\u8b49\u7684\u7528\u6236\u540d\u548c\u5bc6\u78bc\u3002<\/p>\n<h2 id=\"4-%e5%89%b5%e5%bb%bastatement%e5%b0%8d%e8%b1%a1-RoBZucqjwW\">4. \u5275\u5efaStatement\u5c0d\u8c61<\/h2>\n<p>\u4e00\u65e6\u5efa\u7acb\u4e86\u9023\u63a5\uff0c\u5c31\u53ef\u4ee5\u5275\u5efa\u4e00\u500bStatement\u5c0d\u8c61\u4f86\u57f7\u884cSQL\u67e5\u8a62\u3002\u4ee5\u4e0b\u662f\u5275\u5efaStatement\u5c0d\u8c61\u7684\u4ee3\u78bc\uff1a<\/p>\n<pre><code>Statement statement = connection.createStatement();<\/code><\/pre>\n<h2 id=\"5-%e5%9f%b7%e8%a1%8csql%e6%9f%a5%e8%a9%a2-RoBZucqjwW\">5. \u57f7\u884cSQL\u67e5\u8a62<\/h2>\n<p>\u4f7f\u7528Statement\u5c0d\u8c61\u53ef\u4ee5\u57f7\u884cSQL\u67e5\u8a62\u3002\u4ee5\u4e0b\u662f\u57f7\u884c\u67e5\u8a62\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>String sql = \"SELECT * FROM yourTable\";\nResultSet resultSet = statement.executeQuery(sql);<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c07\u57f7\u884c\u4e00\u500b\u67e5\u8a62\uff0c\u4e26\u8fd4\u56de\u7d50\u679c\u96c6\u3002<\/p>\n<h2 id=\"6-%e8%99%95%e7%90%86%e7%b5%90%e6%9e%9c%e9%9b%86-RoBZucqjwW\">6. \u8655\u7406\u7d50\u679c\u96c6<\/h2>\n<p>\u7d50\u679c\u96c6\u5305\u542b\u4e86\u67e5\u8a62\u7684\u7d50\u679c\uff0c\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u4ee3\u78bc\u4f86\u8655\u7406\uff1a<\/p>\n<pre><code>while (resultSet.next()) {\n    System.out.println(\"Column1: \" + resultSet.getString(\"column1\"));\n    System.out.println(\"Column2: \" + resultSet.getString(\"column2\"));\n}<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c07\u904d\u6b77\u7d50\u679c\u96c6\uff0c\u4e26\u6253\u5370\u51fa\u6bcf\u4e00\u884c\u7684\u6307\u5b9a\u5217\u7684\u503c\u3002<\/p>\n<h2 id=\"7-%e9%97%9c%e9%96%89%e9%80%a3%e6%8e%a5-RoBZucqjwW\">7. \u95dc\u9589\u9023\u63a5<\/h2>\n<p>\u5728\u5b8c\u6210\u6240\u6709\u64cd\u4f5c\u5f8c\uff0c\u61c9\u8a72\u95dc\u9589ResultSet\u3001Statement\u548cConnection\uff0c\u4ee5\u91cb\u653e\u8cc7\u6e90\uff1a<\/p>\n<pre><code>resultSet.close();\nstatement.close();\nconnection.close();<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-RoBZucqjwW\">\u7e3d\u7d50<\/h2>\n<p>\u901a\u904e\u4ee5\u4e0a\u6b65\u9a5f\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528JDBC\u6210\u529f\u9023\u63a5\u5230\u6578\u64da\u5eab\u4e26\u57f7\u884c\u67e5\u8a62\u3002\u9019\u4e9b\u57fa\u672c\u6b65\u9a5f\u70baJava\u958b\u767c\u8005\u63d0\u4f9b\u4e86\u4e00\u500b\u6e05\u6670\u7684\u6846\u67b6\uff0c\u5e6b\u52a9\u4ed6\u5011\u5728\u61c9\u7528\u7a0b\u5e8f\u4e2d\u96c6\u6210\u6578\u64da\u5eab\u529f\u80fd\u3002\u82e5\u60a8\u9700\u8981\u7a69\u5b9a\u7684\u6578\u64da\u5eab\u670d\u52d9\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\u4f86\u652f\u6301\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u78ba\u4fdd\u9ad8\u6548\u7684\u6578\u64da\u8655\u7406\u548c\u5b58\u5132\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3JDBC\u9023\u63a5\u6578\u64da\u5eab\u7684\u57fa\u672c\u6b65\u9a5f\uff0c\u5305\u62ec\u9a45\u52d5\u52a0\u8f09\u3001\u9023\u63a5\u5efa\u7acb\u3001\u67e5\u8a62\u57f7\u884c\u53ca\u8cc7\u6e90\u91cb\u653e\uff0c\u52a9\u60a8\u5feb\u901f\u4e0a\u624b\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-62145","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62145","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=62145"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62145\/revisions"}],"predecessor-version":[{"id":62146,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62145\/revisions\/62146"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=62145"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=62145"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=62145"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}