Java Read configuration file

Create a new configuration file in the SRC directory test.properties

Format is: Key=value

Content is: Name=louis

Read Mode 1:

 Public Static voidPROPS1 ()throwsException {//failed to debug, file not found//Reader read = new FileReader ("/db.properties"); //successful, the default is to find the relative path, if plus/, start from the root directory to find//InputStream read = PropertiesDemo.class.getResourceAsStream ("/db.properties"); //success, starting from the root directoryInputStream read = Propertiesdemo.class. getClassLoader (). getResourceAsStream ("Db.properties"); Properties Props=NewProperties ();        Props.load (read); String s= Props.getproperty ("Driver");    System.out.println (s); }

Read Mode 2:

     Public Static void props2 () {        // do not Add. Properties        ResourceBundle RB = Resourcebundle.getbundle ("DB" );         = rb.getstring ("Driver");        System.out.println (d);    }

In the configuration file, Chinese will automatically be converted to Unicode code, you can set the default encoding to Utf-8

Using a configuration file, you can write some data to a configuration file, such as data from a database connection.

Java Read configuration file