<%@ page language="java" import="java.util.*" import="com.mysql.jdbc.Driver" import="java.sql.*" contentType="text/html;charset=gb2312" pageEncoding="UTF-8"%> <!--导入相关的类 ，规定编码gb2312--> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>My JSP 'insertVal.jsp' starting page</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> <!-- <link rel="stylesheet" type="text/css" href="styles.css"> --> </head> <body> bThis is my JSP page. <br> <% Connection conn; Statement stat; //设置连接的url，其中student是数据库名称 String url="jdbc:mysql://localhost:3306/student"; //我使用的是免安装版的mysql,用户:root,密码：zhangweijie String userName="root"; String password="zhangweijie"; try{ //注册JDBC驱动程序 Class.forName("com.mysql.jdbc.Driver"); } catch(ClassNotFoundException ex){ out.println("找不到驱动程序！"); } //打开数据库连接 conn=DriverManager.getConnection(url, userName, password); try{ stat = conn.createStatement(); stat.executeUpdate("insert into Student_Info values(20140001,'宋江','13502022')"); stat.executeUpdate("insert into Student_Info values(20140002,'张江','13502042')"); stat.executeUpdate("insert into Student_Info values(20140003,'成江','13502032')"); stat.executeUpdate("insert into Student_Info values(20140004,'刘江','13503422')"); //获取查询结果 ResultSet result=stat.executeQuery("select * from Student_Info;"); out.println("<Table Border>"); out.println("<TR><TD colspan=3 align=center>学生信息 </TD></TR>"); out.println("<TR>"); out.println("<Td width=150>学号</td>"); out.println("<Td width=150>学生姓名 </td>"); out.println("<Td width=150>联系电话 </td>"); out.println("</TR>"); while(result.next()){ out.println("<TR>"); out.println("<Td>"+result.getInt(1)+"</td>"); out.println("<Td>"+result.getString(2)+"</td>"); out.println("<Td>"+result.getInt(3)+"</td>"); out.println("</TR>"); } } catch(SQLException ex) { //再次刷新就会提示如下，原因是Student_Info数据表中的数据已经存在， //再次刷新页面相当于重新把上面的数据添加到数据表中，由于原来已经存在，故提示如下 out.println("数据表操作失败!"); } finally{ //关闭数据库连接 conn.close(); } %> </body> </html>