{"id":62149,"date":"2024-10-13T16:36:00","date_gmt":"2024-10-13T08:36:00","guid":{"rendered":"https:\/\/server.hk\/cnblog\/62149\/"},"modified":"2024-10-13T16:36:01","modified_gmt":"2024-10-13T08:36:01","slug":"jdbc%e9%a0%90%e8%99%95%e7%90%86%e6%9f%a5%e8%a9%a2%e6%9c%89%e6%95%88%e6%8f%90%e5%8d%87%e6%95%b8%e6%93%9a%e5%ba%ab%e6%95%88%e7%8e%87-jdbc%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a%e5%ba%ab%e9%a0%90%e8%99%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/62149\/","title":{"rendered":"JDBC\u9810\u8655\u7406\u67e5\u8a62\u6709\u6548\u63d0\u5347\u6578\u64da\u5eab\u6548\u7387 (jdbc\u67e5\u8a62\u6578\u64da\u5eab\u9810\u8655\u7406)"},"content":{"rendered":"<h1 id=\"jdbc%e9%a0%90%e8%99%95%e7%90%86%e6%9f%a5%e8%a9%a2%e6%9c%89%e6%95%88%e6%8f%90%e5%8d%87%e6%95%b8%e6%93%9a%e5%ba%ab%e6%95%88%e7%8e%87-gmcADNuJeY\">JDBC\u9810\u8655\u7406\u67e5\u8a62\u6709\u6548\u63d0\u5347\u6578\u64da\u5eab\u6548\u7387<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u5c0d\u65bc\u61c9\u7528\u7a0b\u5e8f\u7684\u6574\u9ad4\u6548\u7387\u81f3\u95dc\u91cd\u8981\u3002Java\u6578\u64da\u5eab\u9023\u63a5\uff08JDBC\uff09\u662f\u4e00\u500b\u5ee3\u6cdb\u4f7f\u7528\u7684API\uff0c\u5141\u8a31Java\u61c9\u7528\u7a0b\u5e8f\u8207\u5404\u7a2e\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002\u672c\u6587\u5c07\u63a2\u8a0eJDBC\u4e2d\u7684\u9810\u8655\u7406\u67e5\u8a62\uff08PreparedStatement\uff09\u5982\u4f55\u6709\u6548\u63d0\u5347\u6578\u64da\u5eab\u7684\u6548\u7387\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e9%a0%90%e8%99%95%e7%90%86%e6%9f%a5%e8%a9%a2%ef%bc%9f-gmcADNuJeY\">\u4ec0\u9ebc\u662f\u9810\u8655\u7406\u67e5\u8a62\uff1f<\/h2>\n<p>\u9810\u8655\u7406\u67e5\u8a62\u662f\u4e00\u7a2e\u5728JDBC\u4e2d\u4f7f\u7528\u7684\u67e5\u8a62\u65b9\u5f0f\uff0c\u901a\u904e\u9810\u5148\u7de8\u8b6fSQL\u8a9e\u53e5\u4f86\u63d0\u9ad8\u6027\u80fd\u3002\u8207\u50b3\u7d71\u7684\u8a9e\u53e5\uff08Statement\uff09\u76f8\u6bd4\uff0c\u9810\u8655\u7406\u67e5\u8a62\u5177\u6709\u4ee5\u4e0b\u5e7e\u500b\u512a\u52e2\uff1a<\/p>\n<ul>\n<li><strong>\u6027\u80fd\u63d0\u5347\uff1a<\/strong>\u9810\u8655\u7406\u67e5\u8a62\u5728\u7b2c\u4e00\u6b21\u57f7\u884c\u6642\u6703\u88ab\u7de8\u8b6f\u4e26\u5b58\u5132\uff0c\u96a8\u5f8c\u7684\u57f7\u884c\u53ea\u9700\u50b3\u905e\u53c3\u6578\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11SQL\u8a9e\u53e5\u7684\u89e3\u6790\u6642\u9593\u3002<\/li>\n<li><strong>\u5b89\u5168\u6027\uff1a<\/strong>\u4f7f\u7528\u9810\u8655\u7406\u67e5\u8a62\u53ef\u4ee5\u6709\u6548\u9632\u6b62SQL\u6ce8\u5165\u653b\u64ca\uff0c\u56e0\u70ba\u7528\u6236\u8f38\u5165\u7684\u6578\u64da\u4e0d\u6703\u76f4\u63a5\u62fc\u63a5\u5230SQL\u8a9e\u53e5\u4e2d\u3002<\/li>\n<li><strong>\u53ef\u8b80\u6027\uff1a<\/strong>\u9810\u8655\u7406\u67e5\u8a62\u7684\u4ee3\u78bc\u7d50\u69cb\u66f4\u6e05\u6670\uff0c\u6613\u65bc\u7dad\u8b77\u548c\u7406\u89e3\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8%e9%a0%90%e8%99%95%e7%90%86%e6%9f%a5%e8%a9%a2-gmcADNuJeY\">\u5982\u4f55\u4f7f\u7528\u9810\u8655\u7406\u67e5\u8a62<\/h2>\n<p>\u4f7f\u7528\u9810\u8655\u7406\u67e5\u8a62\u7684\u57fa\u672c\u6b65\u9a5f\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\u5efa\u7acb\u6578\u64da\u5eab\u9023\u63a5\u3002<\/li>\n<li>\u5275\u5efa\u9810\u8655\u7406\u67e5\u8a62\u5c0d\u8c61\u3002<\/li>\n<li>\u8a2d\u7f6e\u67e5\u8a62\u53c3\u6578\u3002<\/li>\n<li>\u57f7\u884c\u67e5\u8a62\u3002<\/li>\n<li>\u8655\u7406\u7d50\u679c\u3002<\/li>\n<li>\u95dc\u9589\u9023\u63a5\u3002<\/li>\n<\/ol>\n<h3 id=\"%e7%a4%ba%e4%be%8b%e4%bb%a3%e7%a2%bc-gmcADNuJeY\">\u793a\u4f8b\u4ee3\u78bc<\/h3>\n<pre><code>import java.sql.Connection;\nimport java.sql.DriverManager;\nimport java.sql.PreparedStatement;\nimport java.sql.ResultSet;\n\npublic class JdbcPreparedStatementExample {\n    public static void main(String[] args) {\n        String url = \"jdbc:mysql:\/\/localhost:3306\/yourdatabase\";\n        String user = \"yourusername\";\n        String password = \"yourpassword\";\n\n        try (Connection conn = DriverManager.getConnection(url, user, password)) {\n            String sql = \"SELECT * FROM users WHERE age &gt; ?\";\n            PreparedStatement pstmt = conn.prepareStatement(sql);\n            pstmt.setInt(1, 18); \/\/ \u8a2d\u7f6e\u67e5\u8a62\u53c3\u6578\n\n            ResultSet rs = pstmt.executeQuery();\n            while (rs.next()) {\n                System.out.println(\"User: \" + rs.getString(\"name\"));\n            }\n        } catch (Exception e) {\n            e.printStackTrace();\n        }\n    }\n}\n<\/code><\/pre>\n<h2 id=\"%e9%a0%90%e8%99%95%e7%90%86%e6%9f%a5%e8%a9%a2%e7%9a%84%e6%80%a7%e8%83%bd%e5%84%aa%e5%8b%a2-gmcADNuJeY\">\u9810\u8655\u7406\u67e5\u8a62\u7684\u6027\u80fd\u512a\u52e2<\/h2>\n<p>\u9810\u8655\u7406\u67e5\u8a62\u7684\u6027\u80fd\u512a\u52e2\u4e3b\u8981\u9ad4\u73fe\u5728\u4ee5\u4e0b\u5e7e\u500b\u65b9\u9762\uff1a<\/p>\n<ul>\n<li><strong>\u6e1b\u5c11\u7de8\u8b6f\u6642\u9593\uff1a<\/strong>\u7531\u65bcSQL\u8a9e\u53e5\u53ea\u9700\u7de8\u8b6f\u4e00\u6b21\uff0c\u9019\u5c0d\u65bc\u9700\u8981\u591a\u6b21\u57f7\u884c\u7684\u67e5\u8a62\u7279\u5225\u6709\u6548\u3002<\/li>\n<li><strong>\u63d0\u9ad8\u57f7\u884c\u6548\u7387\uff1a<\/strong>\u5728\u591a\u6b21\u57f7\u884c\u76f8\u540c\u67e5\u8a62\u6642\uff0c\u9810\u8655\u7406\u67e5\u8a62\u7684\u6027\u80fd\u512a\u52e2\u6703\u66f4\u52a0\u660e\u986f\u3002<\/li>\n<li><strong>\u8cc7\u6e90\u7ba1\u7406\uff1a<\/strong>\u9810\u8655\u7406\u67e5\u8a62\u80fd\u5920\u66f4\u597d\u5730\u7ba1\u7406\u6578\u64da\u5eab\u8cc7\u6e90\uff0c\u6e1b\u5c11\u4e0d\u5fc5\u8981\u7684\u958b\u92b7\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-gmcADNuJeY\">\u7d50\u8ad6<\/h2>\n<p>\u7e3d\u7684\u4f86\u8aaa\uff0cJDBC\u4e2d\u7684\u9810\u8655\u7406\u67e5\u8a62\u662f\u4e00\u7a2e\u6709\u6548\u63d0\u5347\u6578\u64da\u5eab\u6548\u7387\u7684\u6280\u8853\u3002\u901a\u904e\u6e1b\u5c11\u7de8\u8b6f\u6642\u9593\u3001\u63d0\u9ad8\u57f7\u884c\u6548\u7387\u4ee5\u53ca\u589e\u5f37\u5b89\u5168\u6027\uff0c\u9810\u8655\u7406\u67e5\u8a62\u5728\u73fe\u4ee3\u61c9\u7528\u7a0b\u5e8f\u4e2d\u626e\u6f14\u8457\u91cd\u8981\u89d2\u8272\u3002\u5c0d\u65bc\u958b\u767c\u8005\u4f86\u8aaa\uff0c\u638c\u63e1\u9019\u4e00\u6280\u8853\u4e0d\u50c5\u80fd\u63d0\u5347\u61c9\u7528\u6027\u80fd\uff0c\u9084\u80fd\u589e\u5f37\u6578\u64da\u5b89\u5168\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u90e8\u7f72\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u696d\u52d9\u63d0\u4f9b\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3JDBC\u9810\u8655\u7406\u67e5\u8a62\u5982\u4f55\u6709\u6548\u63d0\u5347\u6578\u64da\u5eab\u6548\u7387\uff0c\u512a\u5316\u6027\u80fd\u4e26\u6e1b\u5c11\u57f7\u884c\u6642\u9593\uff0c\u63d0\u5347\u61c9\u7528\u7a0b\u5f0f\u97ff\u61c9\u901f\u5ea6\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-62149","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62149","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=62149"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62149\/revisions"}],"predecessor-version":[{"id":62150,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62149\/revisions\/62150"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=62149"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=62149"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=62149"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}