如何配置mysql数据库连接

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

public class MySQLConnectionExample {
    public static void main(String[] args) {
        // 配置数据库连接参数
        String hostname = "localhost";
        int port = 3306;
        String username = "your_username";
        String password = "your_password";
        String database = "your_database";

        // 建立数据库连接
        try {
            Connection connection = DriverManager.getConnection("jdbc:mysql://" + hostname + ":" + port + "/" + database, username, password);

            // 执行数据库操作
            // ...

            // 关闭数据库连接
            connection.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}