JSP从数据库中读取数据

xiaoxiao2025-11-13  7

<%@ page language="java" import="java.util.*,java.sql.*" pageEncoding="gb2312"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>从数据库中获取数据</title> </head> <body> <% //1.装载数据驱动 Class.forName("com.mysql.jdbc.Driver"); //2.连接数据库 //数据库名:school //账号名:root //密码:root Connection con=DriverManager.getConnection("jdbc:mysql://localhost:3306/school","root","root"); //3.创建语句对象 Statement stmt=con.createStatement(); //4.执行SQL语句 String sql="select * from student"; //返回ResultSet实例化对象 ResultSet rs=stmt.executeQuery(sql); //5.处理结果 while(rs.next()){ //获取到sno字段的值 out.print(rs.getString("sno")); //解析成HTML,这里换行需要使用out.print("<br>"); out.print("<br>"); } //6.关闭数据库 //关闭结果集 rs.close(); //关闭操作 stmt.close(); //关闭连接 con.close(); %> </body> </html>
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