连接mysql的url怎么填

jdbc:mysql://[hostname]:[port]/[database]?[parameters]

jdbc:mysql://localhost:3306/mydb?characterEncoding=UTF-8&serverTimezone=UTC

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

public class MySQLConnectionTest {
    public static void main(String[] args) {
        String url = "jdbc:mysql://localhost:3306/mydb?characterEncoding=UTF-8&serverTimezone=UTC";
        String user = "yourUsername";
        String password = "yourPassword";

        try (Connection conn = DriverManager.getConnection(url, user, password)) {
            System.out.println("Connected to the database!");
        } catch (SQLException e) {
            System.out.println("Connection failed!");
            e.printStackTrace();
        }
    }
}