整了半天错误一直在改变实在不知道哪里不对劲密码肯定对啊

package com.imooc.jdbc;

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.ResultSet;

import java.sql.SQLException;

import java.sql.Statement;

import org.junit.Test;

public class JDBCdemo1 {

@Test

public void demo1() throws  ClassNotFoundException, SQLException {

//1，加载驱动

Class.forName("com.mysql.cj.jdbc.Driver");

//2，获得连接

Connection con= DriverManager.getConnection("jdbc:mysql://localhost:3306/jdbc?useSSL=false&serverTimezone=Hongkong&useUnicode=true&characterEncoding=utf-8","root@localhost","wfy199852" );

//3,创建执行sql的语句的对象，并执行sql语句

//3.1创建执行sql的对象

String sql="select * from user";

Statement stmt= con.createStatement();

//3.2执行sql语句

ResultSet resultSet = stmt.executeQuery(sql);

while(resultSet.next()) {

int uid = resultSet.getInt("uid");

String username = resultSet.getString("username");

String password =resultSet.getString("password");

String name =resultSet.getString("name");

System.out.println(uid+"  "+username+" "+password+"" +name);

}

//4,释放资源

con.close();

stmt.close();

resultSet.close();

}

}