使用J2SE API读取Properties文件的六种方法
  
  1.使用java.util.Properties类的load()方法
  
  示例: InputStream in = lnew BufferedInputStream(new FileInputStream(name));
  Properties p = new Properties();
  p.load(in);
  
  2.使用java.util.ResourceBundle类的getBundle()方法
  
  示例: ResourceBundle rb = ResourceBundle.getBundle(name, Locale.getDefault());
  
  3.使用java.util.PropertyResourceBundle类的构造函数
  
  示例: InputStream in = new BufferedInputStream(new FileInputStream(name));
  ResourceBundle rb = new PropertyResourceBundle(in);
  
  4.使用class变量的getResourceAsStream()方法
  
  示例: InputStream in = JProperties.class.getResourceAsStream(name);
  Properties p = new Properties();
  p.load(in);
  
  5.使用class.getClassLoader()所得到的java.lang.ClassLoader的getResourceAsStream()方法
  
  示例: InputStream in = JProperties.class.getClassLoader().getResourceAsStream(name);
  Properties p = new Properties();
  p.load(in);
  
  6.使用java.lang.ClassLoader类的getSystemResourceAsStream()静态方法
  
  示例: InputStream in = ClassLoader.getSystemResourceAsStream(name);
  Properties p = new Properties();
  p.load(in);
  
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