{"id":97080,"date":"2024-10-20T14:50:20","date_gmt":"2024-10-20T06:50:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/97080\/"},"modified":"2024-10-20T14:50:21","modified_gmt":"2024-10-20T06:50:21","slug":"p%e5%a6%82%e4%bd%95%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%9f%e7%9c%8b%e9%80%99%e5%80%8b%e6%a8%a3%e4%be%8b%ef%bc%81-jsp%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%e6%a8%a3%e4%be%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/97080\/","title":{"rendered":"P\u5982\u4f55\u9023\u63a5\u6578\u64da\u5eab\uff1f\u770b\u9019\u500b\u6a23\u4f8b\uff01 (jsp\u6578\u64da\u5eab\u9023\u63a5\u6a23\u4f8b)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%9f%e7%9c%8b%e9%80%99%e5%80%8b%e6%a8%a3%e4%be%8b%ef%bc%81-jsp%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%e6%a8%a3%e4%be%8b-jIJQlaxXcy\">\u5982\u4f55\u9023\u63a5\u6578\u64da\u5eab\uff1f\u770b\u9019\u500b\u6a23\u4f8b\uff01 (JSP\u6578\u64da\u5eab\u9023\u63a5\u6a23\u4f8b)<\/h1>\n<p>\u5728\u73fe\u4eca\u7684\u7db2\u7d61\u61c9\u7528\u958b\u767c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u4f7f\u7528\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u3002JavaServer Pages (JSP) \u662f\u4e00\u7a2e\u57fa\u65bcJava\u7684\u6280\u8853\uff0c\u5e38\u7528\u65bc\u5275\u5efa\u52d5\u614b\u7db2\u9801\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728JSP\u4e2d\u9023\u63a5\u6578\u64da\u5eab\uff0c\u4e26\u63d0\u4f9b\u4e00\u500b\u5177\u9ad4\u7684\u7bc4\u4f8b\u4f86\u5e6b\u52a9\u958b\u767c\u8005\u7406\u89e3\u9019\u4e00\u904e\u7a0b\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-jIJQlaxXcy\">\u6578\u64da\u5eab\u9023\u63a5\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5728JSP\u4e2d\uff0c\u9023\u63a5\u6578\u64da\u5eab\u901a\u5e38\u9700\u8981\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li>\u52a0\u8f09\u6578\u64da\u5eab\u9a45\u52d5\u7a0b\u5e8f<\/li>\n<li>\u5efa\u7acb\u6578\u64da\u5eab\u9023\u63a5<\/li>\n<li>\u57f7\u884cSQL\u67e5\u8a62<\/li>\n<li>\u8655\u7406\u7d50\u679c\u96c6<\/li>\n<li>\u95dc\u9589\u9023\u63a5<\/li>\n<\/ul>\n<h2 id=\"%e6%ba%96%e5%82%99%e5%b7%a5%e4%bd%9c-jIJQlaxXcy\">\u6e96\u5099\u5de5\u4f5c<\/h2>\n<p>\u5728\u958b\u59cb\u4e4b\u524d\uff0c\u78ba\u4fdd\u4f60\u5df2\u7d93\u5b89\u88dd\u4e86\u76f8\u61c9\u7684\u6578\u64da\u5eab\uff08\u5982MySQL\u3001PostgreSQL\u7b49\uff09\u4e26\u4e14\u5df2\u7d93\u5275\u5efa\u4e86\u6578\u64da\u5eab\u548c\u8868\u3002\u4ee5\u4e0b\u662f\u9023\u63a5MySQL\u6578\u64da\u5eab\u7684\u7bc4\u4f8b\u3002<\/p>\n<h3 id=\"1-%e5%8a%a0%e8%bc%89%e6%95%b8%e6%93%9a%e5%ba%ab%e9%a9%85%e5%8b%95%e7%a8%8b%e5%ba%8f-jIJQlaxXcy\">1. \u52a0\u8f09\u6578\u64da\u5eab\u9a45\u52d5\u7a0b\u5e8f<\/h3>\n<p>\u5728JSP\u4e2d\uff0c\u4f60\u9700\u8981\u52a0\u8f09\u6578\u64da\u5eab\u7684JDBC\u9a45\u52d5\u7a0b\u5e8f\u3002\u5c0d\u65bcMySQL\uff0c\u901a\u5e38\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u78bc\uff1a<\/p>\n<pre><code>Class.forName(\"com.mysql.cj.jdbc.Driver\");<\/code><\/pre>\n<h3 id=\"2-%e5%bb%ba%e7%ab%8b%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5-jIJQlaxXcy\">2. \u5efa\u7acb\u6578\u64da\u5eab\u9023\u63a5<\/h3>\n<p>\u63a5\u4e0b\u4f86\uff0c\u4f7f\u7528DriverManager\u4f86\u5efa\u7acb\u9023\u63a5\u3002\u4ee5\u4e0b\u662f\u9023\u63a5\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>String url = \"jdbc:mysql:\/\/localhost:3306\/your_database\";\nString user = \"your_username\";\nString password = \"your_password\";\n\nConnection conn = DriverManager.getConnection(url, user, password);<\/code><\/pre>\n<h3 id=\"3-%e5%9f%b7%e8%a1%8csql%e6%9f%a5%e8%a9%a2-jIJQlaxXcy\">3. \u57f7\u884cSQL\u67e5\u8a62<\/h3>\n<p>\u4e00\u65e6\u9023\u63a5\u6210\u529f\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528Statement\u6216PreparedStatement\u4f86\u57f7\u884cSQL\u67e5\u8a62\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528PreparedStatement\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>String sql = \"SELECT * FROM your_table\";\nPreparedStatement pstmt = conn.prepareStatement(sql);\nResultSet rs = pstmt.executeQuery();<\/code><\/pre>\n<h3 id=\"4-%e8%99%95%e7%90%86%e7%b5%90%e6%9e%9c%e9%9b%86-jIJQlaxXcy\">4. \u8655\u7406\u7d50\u679c\u96c6<\/h3>\n<p>\u67e5\u8a62\u57f7\u884c\u5f8c\uff0c\u4f60\u53ef\u4ee5\u901a\u904eResultSet\u4f86\u8655\u7406\u7d50\u679c\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u904d\u6b77\u7d50\u679c\u96c6\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>while (rs.next()) {\n    String column1 = rs.getString(\"column1\");\n    int column2 = rs.getInt(\"column2\");\n    \/\/ \u8655\u7406\u6578\u64da\n}<\/code><\/pre>\n<h3 id=\"5-%e9%97%9c%e9%96%89%e9%80%a3%e6%8e%a5-jIJQlaxXcy\">5. \u95dc\u9589\u9023\u63a5<\/h3>\n<p>\u6700\u5f8c\uff0c\u8a18\u5f97\u95dc\u9589ResultSet\u3001PreparedStatement\u548cConnection\uff0c\u4ee5\u91cb\u653e\u8cc7\u6e90\uff1a<\/p>\n<pre><code>rs.close();\npstmt.close();\nconn.close();<\/code><\/pre>\n<h2 id=\"%e5%ae%8c%e6%95%b4%e7%af%84%e4%be%8b-jIJQlaxXcy\">\u5b8c\u6574\u7bc4\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u5b8c\u6574\u7684JSP\u7bc4\u4f8b\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u9023\u63a5MySQL\u6578\u64da\u5eab\u4e26\u67e5\u8a62\u6578\u64da\uff1a<\/p>\n<pre><code>&lt;%@ page import=\"java.sql.*\" %&gt;\n&lt;%\n    String url = \"jdbc:mysql:\/\/localhost:3306\/your_database\";\n    String user = \"your_username\";\n    String password = \"your_password\";\n    \n    Class.forName(\"com.mysql.cj.jdbc.Driver\");\n    Connection conn = DriverManager.getConnection(url, user, password);\n    \n    String sql = \"SELECT * FROM your_table\";\n    PreparedStatement pstmt = conn.prepareStatement(sql);\n    ResultSet rs = pstmt.executeQuery();\n    \n    while (rs.next()) {\n        String column1 = rs.getString(\"column1\");\n        int column2 = rs.getInt(\"column2\");\n        out.println(\"Column1: \" + column1 + \", Column2: \" + column2 + \"&lt;br&gt;\");\n    }\n    \n    rs.close();\n    pstmt.close();\n    conn.close();\n%&gt;<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-jIJQlaxXcy\">\u7e3d\u7d50<\/h2>\n<p>\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u4ecb\u7d39\u4e86\u5982\u4f55\u5728JSP\u4e2d\u9023\u63a5\u6578\u64da\u5eab\u7684\u57fa\u672c\u6b65\u9a5f\uff0c\u4e26\u63d0\u4f9b\u4e86\u4e00\u500b\u5177\u9ad4\u7684\u7bc4\u4f8b\u3002\u901a\u904e\u9019\u4e9b\u6b65\u9a5f\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5730\u5728\u81ea\u5df1\u7684\u61c9\u7528\u4e2d\u5be6\u73fe\u6578\u64da\u5eab\u64cd\u4f5c\u3002\u5982\u679c\u4f60\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u90e8\u7f72\u4f60\u7684\u61c9\u7528\uff0cServer.HK 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