java中mysql连接配置文件

# db.properties
jdbc.driver=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/mydatabase?useSSL=false&serverTimezone=UTC
jdbc.username=myuser
jdbc.password=mypassword

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 DBConnector {
    private static Connection connection;

    public static void main(String[] args) {
        Properties props = new Properties();
        try (FileInputStream fis = new FileInputStream("path/to/db.properties")) {
            props.load(fis);
            Class.forName(props.getProperty("jdbc.driver"));
            connection = DriverManager.getConnection(
                    props.getProperty("jdbc.url"),
                    props.getProperty("jdbc.username"),
                    props.getProperty("jdbc.password")
            );
            System.out.println("Connected to the database!");
        } catch (IOException | ClassNotFoundException | SQLException e) {
            e.printStackTrace();
        }
    }

    public static Connection getConnection() {
        return connection;
    }
}