如何连接登录mysql数据库

import java.sql.*;

public class MySQLConnect {
    public static void main(String[] args) {
        Connection conn = null;
        try {
            // 加载驱动程序
            Class.forName("com.mysql.jdbc.Driver");
            
            // 连接数据库
            String url = "jdbc:mysql://localhost:3306/mydb";
            String user = "root";
            String password = "password";
            conn = DriverManager.getConnection(url, user, password);
            
            // 执行SQL语句
            Statement stmt = conn.createStatement();
            String sql = "SELECT * FROM users";
            ResultSet rs = stmt.executeQuery(sql);
            
            // 处理查询结果
            while (rs.next()) {
                int id = rs.getInt("id");
                String name = rs.getString("name");
                // 处理查询结果...
            }
            
            // 关闭连接
            rs.close();
            stmt.close();
            conn.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}