关于jsp的MySQL数据库连接问题

<%@ page language="java" contentType="text/html;
charset=utf-8" pageEncoding="utf-8"
%>
<%@ page import="java.sql.*" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>students</title>
</head>
<body>
<%
    String driverClass="com.mysql.cj.jdbc.Driver";
    Class.forName(driverClass);
    String url="jdbc:mysql://localhost:3306/test";
   
    String username="root";
    String password="123456";
   
    Connection conn=DriverManager.getConnection(url, username, password);
    Statement stmt=conn.createStatement();
    ResultSet rs = stmt.executeQuery("select * from students");
    if(rs.next()){
        out.println(rs.getString("name"));
    }else{
        out.println("登录失败");
        response.setHeader("refresh","5;url=login.jsp");  
    }
    rs.close();
    stmt.close();
    conn.close();
%>

</body>
</html>
 
要在tomcat下的lib里放入自己的jdbc驱动
posted @ 2023-06-08 20:02  惠安雪乃  阅读(23)  评论(0)    收藏  举报