<%@ page language="java" import="java.sql.*" pageEncoding="UTF-8"%>
<% request.setCharacterEncoding("UTF-8"); %>
<html>
<head></head>
<body>
<%
String driverName = "com.mysql.jdbc.Driver"; //驱动程序名
String userName = "root"; //数据库用户名
String userPwd = "123456"; //密码
String dbName = "students"; //数据库名
String url1="jdbc:mysql://localhost:3306/"+dbName;
String url2 ="?user="+userName+"&password="+userPwd;
String url3="&useUnicode=true&characterEncoding=UTF-8";
String url =url1+url2+url3;
Class.forName(driverName); //加载并注册驱动程序
Connection conn=DriverManager.getConnection(url); //创建连接对象
%>
</body>
</html>
连接的jar包也导入了，运行出来一开始是connection一行有问题，显示Communications link failure，后来再运行就变成了404The requested resource is not available.
求解答！！
