windows下使用jdbc连接MySQL

import java.sql.*;
//连接MySQL
public class MySQLConnection {
public static void main(String args[]) throws ClassNotFoundException, SQLException{
//设置连接参数
String drivername="com.mysql.jdbc.Driver";
String url="jdbc:mysql://localhost:3306/test";
String username="root";                           //假设登陆名为此
String password="root";                          //假设登陆密码为此
String sql="select * from student";
//建立连接
Class.forName(drivername);
Connection conn=DriverManager.getConnection(url,username,password);
Statement state=conn.createStatement();
ResultSet rs=state.executeQuery(sql);
while(rs.next()){
System.out.println(rs.getString(1)+"\t"+rs.getString(3)+"\t"+rs.getString(3));
}
rs.close();
conn.close();
}
}