java mysql连接配置文件

driver=com.mysql.cj.jdbc.Driver
url=jdbc:mysql://localhost:3306/mydatabase?useSSL=false&serverTimezone=UTC
username=root
password=yourpassword

import java.io.FileInputStream;
import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Properties;

public class DatabaseConnector {
    private static Connection connection;

    public static Connection getConnection() throws IOException, SQLException {
        if (connection == null || connection.isClosed()) {
            Properties props = new Properties();
            props.load(new FileInputStream("path/to/database.properties"));

            String driver = props.getProperty("driver");
            String url = props.getProperty("url");
            String username = props.getProperty("username");
            String password = props.getProperty("password");

            Class.forName(driver);
            connection = DriverManager.getConnection(url, username, password);
        }
        return connection;
    }
}