java 连接 MySQL

import java.sql.*;

public class connect {
    public static void main(String[] args) throws ClassNotFoundException, SQLException{
        //驱动名称
        String driver = "com.mysql.jdbc.Driver";
        //数据库地址
        String url = "jdbc:mysql://127.0.0.1:3306/yuyu";
        //用户名和密码
        String user = "root";
        String pwd = "123";
        //加载驱动
        Class.forName(driver);
        //建立连接
        Connection conn = DriverManager.getConnection(url, user, pwd);
        
        if(!conn.isClosed())
            System.out.println("Succeedeed connecting!");
        else{
            System.out.println("error connecting!");
            return;
        }
        
        //对象表示基本语句
        Statement statement = conn.createStatement();
        //要执行的SQL语句
        String sql = "insert into studet (mName, mPhome) values ('yy', 456)";
        //执行SQL语句
        statement.execute(sql);
    }
}