怎样在本地电脑上连接另外一台电脑上的mysql数据？(代码示例)

package com.test;import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.Statement;public class DataBaseTest {

    DataBaseTest(){
        String url="jdbc:mysql://10.30.11.13:3306/mysql";
        Connection Db;
        Statement DataRequest;
        ResultSet Results;
        String str;        try{            //加载MySQL驱动
            Class.forName("com.mysql.jdbc.Driver");            //建立到MySQL的连接
            Db = DriverManager.getConnection(url, "guest", "123456");
            String query = "SELECT * FROM mysql.user";            //执行SQL语句
            DataRequest = Db.createStatement();
            Results = DataRequest.executeQuery(query);            while(Results.next()){
                str = new String(Results.getString(1));
                System.out.println(str);                //System.out.println("success!");            }
            DataRequest.close();
            Db.close();
            
        }catch(Exception e){
            System.out.println("Error!" + e);            return;
        }
        
    }    
    public static void main(String[] args) {        // TODO Auto-generated method stub
        new DataBaseTest();
    }

}