java连接mysql超时

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

public class MySQLConnectionExample {
    public static void main(String[] args) {
        String url = "jdbc:mysql://localhost:3306/mydatabase";
        String user = "username";
        String password = "password";

        try {
            // 设置连接超时时间为10秒
            Properties props = new Properties();
            props.setProperty("user", user);
            props.setProperty("password", password);
            props.setProperty("connectTimeout", "10000");

            Connection conn = DriverManager.getConnection(url, props);
            System.out.println("Connected to the database!");
            conn.close();
        } catch (SQLException e) {
            System.err.println("Failed to connect to the database: " + e.getMessage());
        }
    }
}