Two kinds of ways to read the database configuration file

1、ResourceBundle

ResourceBundle bundle = ResourceBundle.getBundle ( "jdbc" ); // reads the configuration file in the same directory configuration file type, the path is not the same need to add the jdbc.properties
         URL = bundle.getString ( "URL");
         User = the bundle. the getString ( "User");
         password = bundle.getString ( "password");
         driverClass = bundle.getString ( "driverClass");

2、Properties

Properties properties = new Properties();
        try {
            properties.load(this.getClass().getResourceAsStream("/jdbc.properties"));
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        String driver = properties.getProperty("driver");
        String user = properties.getProperty("user");
        String password = properties.getProperty("password");
        String url = properties.getProperty("url");