{"id":179440,"date":"2024-11-09T01:50:18","date_gmt":"2024-11-08T17:50:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179440\/"},"modified":"2024-11-09T01:50:19","modified_gmt":"2024-11-08T17:50:19","slug":"%e5%a6%82%e4%bd%95%e5%84%aa%e5%8c%96%e6%80%a7%e8%83%bd%e6%b8%ac%e8%a9%a6%e4%b8%ad%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%e9%87%8b%e6%94%be%e5%95%8f%e9%a1%8c%ef%bc%9f-%e6%80%a7%e8%83%bd","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179440\/","title":{"rendered":"\u5982\u4f55\u512a\u5316\u6027\u80fd\u6e2c\u8a66\u4e2d\u7684\u6578\u64da\u5eab\u9023\u63a5\u91cb\u653e\u554f\u984c\uff1f (\u6027\u80fd\u6e2c\u8a66 \u6578\u64da\u5eab\u9023\u63a5\u91cb\u653e\u5f88\u6162)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e5%84%aa%e5%8c%96%e6%80%a7%e8%83%bd%e6%b8%ac%e8%a9%a6%e4%b8%ad%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%e9%87%8b%e6%94%be%e5%95%8f%e9%a1%8c%ef%bc%9f-PRSPLzeXbY\">\u5982\u4f55\u512a\u5316\u6027\u80fd\u6e2c\u8a66\u4e2d\u7684\u6578\u64da\u5eab\u9023\u63a5\u91cb\u653e\u554f\u984c\uff1f<\/h1>\n<p>\u5728\u9032\u884c\u6027\u80fd\u6e2c\u8a66\u6642\uff0c\u6578\u64da\u5eab\u9023\u63a5\u7684\u91cb\u653e\u554f\u984c\u5e38\u5e38\u6210\u70ba\u5f71\u97ff\u7cfb\u7d71\u6027\u80fd\u7684\u74f6\u9838\u4e4b\u4e00\u3002\u7576\u6578\u64da\u5eab\u9023\u63a5\u91cb\u653e\u7de9\u6162\u6642\uff0c\u53ef\u80fd\u5c0e\u81f4\u8cc7\u6e90\u6d6a\u8cbb\u3001\u6027\u80fd\u4e0b\u964d\uff0c\u751a\u81f3\u5f71\u97ff\u7528\u6236\u9ad4\u9a57\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u512a\u5316\u6027\u80fd\u6e2c\u8a66\u4e2d\u7684\u6578\u64da\u5eab\u9023\u63a5\u91cb\u653e\u554f\u984c\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u5efa\u8b70\u548c\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e7%90%86%e8%a7%a3%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%e9%87%8b%e6%94%be%e7%9a%84%e9%81%8e%e7%a8%8b-PRSPLzeXbY\">\u7406\u89e3\u6578\u64da\u5eab\u9023\u63a5\u91cb\u653e\u7684\u904e\u7a0b<\/h2>\n<p>\u6578\u64da\u5eab\u9023\u63a5\u91cb\u653e\u662f\u6307\u5728\u5b8c\u6210\u6578\u64da\u5eab\u64cd\u4f5c\u5f8c\uff0c\u5c07\u9023\u63a5\u6b78\u9084\u7d66\u9023\u63a5\u6c60\u7684\u904e\u7a0b\u3002\u9019\u4e00\u904e\u7a0b\u901a\u5e38\u6d89\u53ca\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li>\u95dc\u9589\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u7d50\u679c\u96c6\u3002<\/li>\n<li>\u95dc\u9589\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u8072\u660e\u3002<\/li>\n<li>\u5c07\u9023\u63a5\u6b78\u9084\u7d66\u9023\u63a5\u6c60\u3002<\/li>\n<\/ul>\n<p>\u5982\u679c\u9019\u4e9b\u6b65\u9a5f\u4e2d\u7684\u4efb\u4f55\u4e00\u500b\u57f7\u884c\u4e0d\u7576\uff0c\u90fd\u53ef\u80fd\u5c0e\u81f4\u9023\u63a5\u91cb\u653e\u7de9\u6162\uff0c\u9032\u800c\u5f71\u97ff\u6574\u9ad4\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e5%b8%b8%e8%a6%8b%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%e9%87%8b%e6%94%be%e5%95%8f%e9%a1%8c-PRSPLzeXbY\">\u5e38\u898b\u7684\u6578\u64da\u5eab\u9023\u63a5\u91cb\u653e\u554f\u984c<\/h2>\n<p>\u5728\u6027\u80fd\u6e2c\u8a66\u4e2d\uff0c\u6578\u64da\u5eab\u9023\u63a5\u91cb\u653e\u7de9\u6162\u7684\u539f\u56e0\u53ef\u80fd\u6709\u591a\u7a2e\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u554f\u984c\uff1a<\/p>\n<ul>\n<li><strong>\u672a\u6b63\u78ba\u95dc\u9589\u7d50\u679c\u96c6\uff1a<\/strong>\u5728\u4f7f\u7528 JDBC \u7b49\u6578\u64da\u5eab\u9023\u63a5\u6642\uff0c\u672a\u80fd\u6b63\u78ba\u95dc\u9589\u7d50\u679c\u96c6\u6703\u5c0e\u81f4\u8cc7\u6e90\u7121\u6cd5\u91cb\u653e\u3002<\/li>\n<li><strong>\u9023\u63a5\u6c60\u914d\u7f6e\u4e0d\u7576\uff1a<\/strong>\u9023\u63a5\u6c60\u7684\u6700\u5927\u9023\u63a5\u6578\u3001\u6700\u5c0f\u9023\u63a5\u6578\u7b49\u914d\u7f6e\u4e0d\u5408\u7406\uff0c\u53ef\u80fd\u5c0e\u81f4\u9023\u63a5\u91cb\u653e\u4e0d\u53ca\u6642\u3002<\/li>\n<li><strong>\u9577\u6642\u9593\u904b\u884c\u7684\u67e5\u8a62\uff1a<\/strong>\u5982\u679c\u67e5\u8a62\u57f7\u884c\u6642\u9593\u904e\u9577\uff0c\u5c07\u6703\u4f54\u7528\u9023\u63a5\uff0c\u5f71\u97ff\u5176\u4ed6\u8acb\u6c42\u7684\u8655\u7406\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%84%aa%e5%8c%96%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%e9%87%8b%e6%94%be%e7%9a%84%e7%ad%96%e7%95%a5-PRSPLzeXbY\">\u512a\u5316\u6578\u64da\u5eab\u9023\u63a5\u91cb\u653e\u7684\u7b56\u7565<\/h2>\n<h3 id=\"1-%e7%a2%ba%e4%bf%9d%e6%ad%a3%e7%a2%ba%e9%97%9c%e9%96%89%e8%b3%87%e6%ba%90-PRSPLzeXbY\">1. \u78ba\u4fdd\u6b63\u78ba\u95dc\u9589\u8cc7\u6e90<\/h3>\n<p>\u5728\u5b8c\u6210\u6578\u64da\u5eab\u64cd\u4f5c\u5f8c\uff0c\u52d9\u5fc5\u78ba\u4fdd\u95dc\u9589\u6240\u6709\u76f8\u95dc\u8cc7\u6e90\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>Connection conn = null;\nPreparedStatement pstmt = null;\nResultSet rs = null;\n\ntry {\n    conn = dataSource.getConnection();\n    pstmt = conn.prepareStatement(\"SELECT * FROM users\");\n    rs = pstmt.executeQuery();\n    \/\/ \u8655\u7406\u7d50\u679c\u96c6\n} catch (SQLException e) {\n    e.printStackTrace();\n} finally {\n    if (rs != null) {\n        rs.close();\n    }\n    if (pstmt != null) {\n        pstmt.close();\n    }\n    if (conn != null) {\n        conn.close();\n    }\n}<\/code><\/pre>\n<h3 id=\"2-%e8%aa%bf%e6%95%b4%e9%80%a3%e6%8e%a5%e6%b1%a0%e9%85%8d%e7%bd%ae-PRSPLzeXbY\">2. \u8abf\u6574\u9023\u63a5\u6c60\u914d\u7f6e<\/h3>\n<p>\u6839\u64da\u61c9\u7528\u7684\u9700\u6c42\uff0c\u5408\u7406\u914d\u7f6e\u9023\u63a5\u6c60\u7684\u53c3\u6578\u3002\u4f8b\u5982\uff0c\u6839\u64da\u9810\u671f\u7684\u4e26\u767c\u8acb\u6c42\u6578\u91cf\u8abf\u6574\u6700\u5927\u9023\u63a5\u6578\uff0c\u4e26\u8a2d\u7f6e\u9069\u7576\u7684\u8d85\u6642\u6642\u9593\uff0c\u4ee5\u907f\u514d\u9577\u6642\u9593\u4f54\u7528\u9023\u63a5\u3002<\/p>\n<h3 id=\"3-%e5%84%aa%e5%8c%96%e6%9f%a5%e8%a9%a2%e6%80%a7%e8%83%bd-PRSPLzeXbY\">3. \u512a\u5316\u67e5\u8a62\u6027\u80fd<\/h3>\n<p>\u5c0d\u65bc\u9577\u6642\u9593\u904b\u884c\u7684\u67e5\u8a62\uff0c\u53ef\u4ee5\u8003\u616e\u4ee5\u4e0b\u5e7e\u7a2e\u512a\u5316\u65b9\u6cd5\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528\u7d22\u5f15\u4f86\u52a0\u901f\u67e5\u8a62\u3002<\/li>\n<li>\u907f\u514d\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528 SELECT *\uff0c\u800c\u662f\u9078\u64c7\u5fc5\u8981\u7684\u5b57\u6bb5\u3002<\/li>\n<li>\u5b9a\u671f\u6aa2\u67e5\u548c\u512a\u5316\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h3 id=\"4-%e4%bd%bf%e7%94%a8%e9%80%a3%e6%8e%a5%e6%b1%a0%e7%9b%a3%e6%8e%a7%e5%b7%a5%e5%85%b7-PRSPLzeXbY\">4. \u4f7f\u7528\u9023\u63a5\u6c60\u76e3\u63a7\u5de5\u5177<\/h3>\n<p>\u4f7f\u7528\u9023\u63a5\u6c60\u76e3\u63a7\u5de5\u5177\u53ef\u4ee5\u5e6b\u52a9\u53ca\u6642\u767c\u73fe\u9023\u63a5\u91cb\u653e\u7684\u554f\u984c\uff0c\u4e26\u9032\u884c\u76f8\u61c9\u7684\u8abf\u6574\u3002\u9019\u4e9b\u5de5\u5177\u901a\u5e38\u63d0\u4f9b\u9023\u63a5\u4f7f\u7528\u60c5\u6cc1\u3001\u91cb\u653e\u6642\u9593\u7b49\u6307\u6a19\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u9032\u884c\u6027\u80fd\u5206\u6790\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-PRSPLzeXbY\">\u7d50\u8ad6<\/h2>\n<p>\u6578\u64da\u5eab\u9023\u63a5\u91cb\u653e\u554f\u984c\u5728\u6027\u80fd\u6e2c\u8a66\u4e2d\u662f\u4e00\u500b\u91cd\u8981\u7684\u8003\u91cf\u56e0\u7d20\u3002\u901a\u904e\u6b63\u78ba\u95dc\u9589\u8cc7\u6e90\u3001\u8abf\u6574\u9023\u63a5\u6c60\u914d\u7f6e\u3001\u512a\u5316\u67e5\u8a62\u6027\u80fd\u4ee5\u53ca\u4f7f\u7528\u76e3\u63a7\u5de5\u5177\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u9019\u4e00\u554f\u984c\uff0c\u63d0\u5347\u7cfb\u7d71\u7684\u6574\u9ad4\u6027\u80fd\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u80fd\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> 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