java如何连接mysql数据库

package com.zwork.utils;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

public class JdbcUtil {
    private static final String USER = "root";//用户
    private static final String PASSWORD = "root";//密码
    static final String DRIVER="com.mysql.jdbc.Driver";//数据库驱动
    static final String URL="jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=UTF-8";//数据库地址

    private static Connection conn;

    //加载数据库驱动
    static{
        try {
            Class.forName(DRIVER);
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }
    }

    //获取连接的方法
    public static Connection getConnection(){
        try {
            return conn = DriverManager.getConnection(URL,USER,PASSWORD);
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return null;
    }
}

package com.zwork.test;

import com.zwork.utils.JdbcUtil;

import java.sql.Connection;

public class JdbcUtilTest {
    public static void main(String[] args) {
        Connection conn = JdbcUtil.getConnection();
        System.out.println(conn);
    }
}

com.mysql.jdbc.Connection@5f8ed237