{"id":97062,"date":"2024-10-20T14:41:18","date_gmt":"2024-10-20T06:41:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/97062\/"},"modified":"2024-10-20T14:41:19","modified_gmt":"2024-10-20T06:41:19","slug":"p%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%9a%e7%b0%a1%e5%96%ae%e6%98%93%e5%ad%b8%e7%9a%84%e6%96%b9%e6%b3%95-jsp%e7%b6%b2%e9%a0%81%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9f%a5%e8%a9%a2%e7%b5%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/97062\/","title":{"rendered":"P\u67e5\u8a62\u6578\u64da\u5eab\uff1a\u7c21\u55ae\u6613\u5b78\u7684\u65b9\u6cd5 (jsp\u7db2\u9801\u6578\u64da\u5eab\u67e5\u8a62\u7d50\u679c)"},"content":{"rendered":"<h1 id=\"p%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%9a%e7%b0%a1%e5%96%ae%e6%98%93%e5%ad%b8%e7%9a%84%e6%96%b9%e6%b3%95-jsp%e7%b6%b2%e9%a0%81%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9f%a5%e8%a9%a2%e7%b5%90-sLHcbbKZeu\">P\u67e5\u8a62\u6578\u64da\u5eab\uff1a\u7c21\u55ae\u6613\u5b78\u7684\u65b9\u6cd5 (jsp\u7db2\u9801\u6578\u64da\u5eab\u67e5\u8a62\u7d50\u679c)<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u74b0\u5883\u4e2d\uff0c\u6578\u64da\u5eab\u67e5\u8a62\u662f\u7db2\u7ad9\u958b\u767c\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002\u7279\u5225\u662f\u4f7f\u7528Java Server Pages (JSP)\u6280\u8853\u6642\uff0c\u80fd\u5920\u6709\u6548\u5730\u5f9e\u6578\u64da\u5eab\u4e2d\u6aa2\u7d22\u548c\u986f\u793a\u6578\u64da\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528JSP\u9032\u884c\u6578\u64da\u5eab\u67e5\u8a62\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u7c21\u55ae\u6613\u5b78\u7684\u65b9\u6cd5\u548c\u793a\u4f8b\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afjsp%ef%bc%9f-sLHcbbKZeu\">\u4ec0\u9ebc\u662fJSP\uff1f<\/h2>\n<p>Java Server Pages (JSP) \u662f\u4e00\u7a2e\u57fa\u65bcJava\u7684\u6280\u8853\uff0c\u5141\u8a31\u958b\u767c\u8005\u5728HTML\u9801\u9762\u4e2d\u5d4c\u5165Java\u4ee3\u78bc\u3002\u9019\u4f7f\u5f97\u52d5\u614b\u751f\u6210\u7db2\u9801\u5167\u5bb9\u8b8a\u5f97\u66f4\u52a0\u7c21\u55ae\u3002JSP\u901a\u5e38\u8207Servlet\u4e00\u8d77\u4f7f\u7528\uff0c\u4e26\u4e14\u53ef\u4ee5\u8f15\u9b06\u5730\u8207\u5404\u7a2e\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5-sLHcbbKZeu\">\u6578\u64da\u5eab\u9023\u63a5<\/h2>\n<p>\u5728\u9032\u884c\u6578\u64da\u5eab\u67e5\u8a62\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u5efa\u7acb\u8207\u6578\u64da\u5eab\u7684\u9023\u63a5\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528JDBC\uff08Java Database Connectivity\uff09\u9023\u63a5MySQL\u6578\u64da\u5eab\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<pre><code>Class.forName(\"com.mysql.cj.jdbc.Driver\");\nConnection conn = DriverManager.getConnection(\"jdbc:mysql:\/\/localhost:3306\/your_database\", \"username\", \"password\");<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u60a8\u9700\u8981\u66ff\u63db`your_database`\u3001`username`\u548c`password`\u70ba\u60a8\u7684\u6578\u64da\u5eab\u540d\u7a31\u3001\u7528\u6236\u540d\u548c\u5bc6\u78bc\u3002<\/p>\n<h2 id=\"%e5%9f%b7%e8%a1%8c%e6%9f%a5%e8%a9%a2-sLHcbbKZeu\">\u57f7\u884c\u67e5\u8a62<\/h2>\n<p>\u4e00\u65e6\u5efa\u7acb\u4e86\u9023\u63a5\uff0c\u5c31\u53ef\u4ee5\u57f7\u884cSQL\u67e5\u8a62\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u67e5\u8a62\u793a\u4f8b\uff1a<\/p>\n<pre><code>String sql = \"SELECT * FROM your_table\";\nStatement stmt = conn.createStatement();\nResultSet rs = stmt.executeQuery(sql);<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c`your_table`\u662f\u60a8\u8981\u67e5\u8a62\u7684\u6578\u64da\u8868\u540d\u7a31\u3002\u57f7\u884c\u67e5\u8a62\u5f8c\uff0c\u7d50\u679c\u5c07\u5b58\u5132\u5728`ResultSet`\u5c0d\u8c61\u4e2d\u3002<\/p>\n<h2 id=\"%e8%99%95%e7%90%86%e6%9f%a5%e8%a9%a2%e7%b5%90%e6%9e%9c-sLHcbbKZeu\">\u8655\u7406\u67e5\u8a62\u7d50\u679c<\/h2>\n<p>\u63a5\u4e0b\u4f86\uff0c\u60a8\u9700\u8981\u8655\u7406\u67e5\u8a62\u7d50\u679c\u4e26\u5c07\u5176\u986f\u793a\u5728\u7db2\u9801\u4e0a\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u904d\u6b77`ResultSet`\u4e26\u986f\u793a\u6578\u64da\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>while (rs.next()) {\n    String column1 = rs.getString(\"column1_name\");\n    String column2 = rs.getString(\"column2_name\");\n    out.println(\"&lt;p&gt;\" + column1 + \" - \" + column2 + \"&lt;\/p&gt;\");\n}<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c`column1_name`\u548c`column2_name`\u662f\u60a8\u6578\u64da\u8868\u4e2d\u7684\u5217\u540d\u3002\u4f7f\u7528`out.println`\u53ef\u4ee5\u5c07\u6578\u64da\u8f38\u51fa\u5230JSP\u9801\u9762\u4e0a\u3002<\/p>\n<h2 id=\"%e9%97%9c%e9%96%89%e9%80%a3%e6%8e%a5-sLHcbbKZeu\">\u95dc\u9589\u9023\u63a5<\/h2>\n<p>\u5b8c\u6210\u67e5\u8a62\u5f8c\uff0c\u8a18\u5f97\u95dc\u9589`ResultSet`\u3001`Statement`\u548c`Connection`\u4ee5\u91cb\u653e\u8cc7\u6e90\uff1a<\/p>\n<pre><code>rs.close();\nstmt.close();\nconn.close();<\/code><\/pre>\n<h2 id=\"%e5%ae%8c%e6%95%b4%e7%a4%ba%e4%be%8b-sLHcbbKZeu\">\u5b8c\u6574\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u5b8c\u6574\u7684JSP\u793a\u4f8b\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u5f9e\u6578\u64da\u5eab\u4e2d\u67e5\u8a62\u6578\u64da\u4e26\u986f\u793a\u5728\u7db2\u9801\u4e0a\uff1a<\/p>\n<pre><code>&lt;%@ page language=\"java\" contentType=\"text\/html; charset=UTF-8\" pageEncoding=\"UTF-8\"%&gt;\n&lt;%@ page import=\"java.sql.*\" %&gt;\n&lt;html&gt;\n&lt;head&gt;\n    &lt;title&gt;\u6578\u64da\u5eab\u67e5\u8a62\u7d50\u679c&lt;\/title&gt;\n&lt;\/head&gt;\n&lt;body&gt;\n&lt;h1&gt;\u67e5\u8a62\u7d50\u679c&lt;\/h1&gt;\n&lt;%\n    Connection conn = null;\n    Statement stmt = null;\n    ResultSet rs = null;\n    try {\n        Class.forName(\"com.mysql.cj.jdbc.Driver\");\n        conn = DriverManager.getConnection(\"jdbc:mysql:\/\/localhost:3306\/your_database\", \"username\", \"password\");\n        String sql = \"SELECT * FROM your_table\";\n        stmt = conn.createStatement();\n        rs = stmt.executeQuery(sql);\n        while (rs.next()) {\n            String column1 = rs.getString(\"column1_name\");\n            String column2 = rs.getString(\"column2_name\");\n            out.println(\"&lt;p&gt;\" + column1 + \" - \" + column2 + \"&lt;\/p&gt;\");\n        }\n    } catch (Exception e) {\n        e.printStackTrace();\n    } finally {\n        if (rs != null) try { rs.close(); } catch (SQLException e) { e.printStackTrace(); }\n        if (stmt != null) try { stmt.close(); } catch (SQLException e) { e.printStackTrace(); }\n        if (conn != null) try { conn.close(); } catch (SQLException e) { e.printStackTrace(); }\n    }\n%&gt;\n&lt;\/body&gt;\n&lt;\/html&gt;<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-sLHcbbKZeu\">\u7e3d\u7d50<\/h2>\n<p>\u901a\u904e\u4ee5\u4e0a\u7684\u4ecb\u7d39\uff0c\u6211\u5011\u53ef\u4ee5\u770b\u5230\u4f7f\u7528JSP\u9032\u884c\u6578\u64da\u5eab\u67e5\u8a62\u662f\u4e00\u500b\u76f8\u5c0d\u7c21\u55ae\u7684\u904e\u7a0b\u3002\u5f9e\u5efa\u7acb\u6578\u64da\u5eab\u9023\u63a5\u5230\u57f7\u884c\u67e5\u8a62\uff0c\u518d\u5230\u8655\u7406\u7d50\u679c\uff0c\u9019\u4e9b\u6b65\u9a5f\u90fd\u53ef\u4ee5\u8f15\u9b06\u638c\u63e1\u3002\u5c0d\u65bc\u5e0c\u671b\u5728\u7db2\u9801\u4e2d\u52d5\u614b\u986f\u793a\u6578\u64da\u7684\u958b\u767c\u8005\u4f86\u8aaa\uff0c\u9019\u662f\u4e00\u500b\u975e\u5e38\u5be6\u7528\u7684\u6280\u80fd\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u7db2\u7ad9\u958b\u767c\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u3002\u7121\u8ad6\u662f\u5c0f\u578b\u9805\u76ee\u9084\u662f\u5927\u578b\u61c9\u7528\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u53ef\u9760\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22P\u67e5\u8a62\u6578\u64da\u5eab\u7684\u7c21\u55ae\u6613\u5b78\u65b9\u6cd5\uff0c\u8f15\u9b06\u638c\u63e1JSP\u7db2\u9801\u6578\u64da\u5eab\u67e5\u8a62\u7d50\u679c\uff0c\u63d0\u5347\u60a8\u7684\u6578\u64da\u8655\u7406\u6280\u80fd\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-97062","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97062","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=97062"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97062\/revisions"}],"predecessor-version":[{"id":97063,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97062\/revisions\/97063"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=97062"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=97062"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=97062"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}