1.使用java.util.Properties类的load()方法
示例：
InputStream in = lnew BufferedInputStream(newFileInputStream(name));
Propertiesp = 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(newFileInputStream(name));
ResourceBundlerb = new PropertyResourceBundle(in);
4.使用class变量的getResourceAsStream()方法
示例：InputStream in = JProperties.class.getResourceAsStream(name);
Propertiesp = 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);
Propertiesp = 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);
Propertiesp = new Properties();
p.load(in);
【补充】
Servlet中可以使用javax.servlet.ServletContext的getResourceAsStream()方法
示例：InputStream in = context.getResourceAsStream(path);
Propertiesp = new Properties();
p.load(in);
