JAVA中用到資源文件的情況非常多,所以開發中經常會遇到讀取.properties文件的情況,現作些總結:

1.使用java.util.Properties類的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類的getBundle()方法
示例:
ResourceBundle rb = ResourceBundle.getBundle(name, Locale.getDefault());

3.使用java.util.PropertyResourceBundle類的構造函數
示例:
InputStream in = new BufferedInputStream(new FileInputStream(name));
ResourceBundle rb = new PropertyResourceBundle(in);

4.使用class變量的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類的getSystemResourceAsStream()靜態方法
示例:
InputStream in = ClassLoader.getSystemResourceAsStream(name);
Properties p = new Properties();
p.load(in);

7.Servlet中可以用javax.servlet.ServletContext 的getResourceAsStream()方法

示例:
InputStream in = context.getResourceAsStream(path);
Properties p = new Properties();
p.load(in);

8.用Thread當前線程方法獲取
示例:
Properties properties = new Properties();
properties.load(Thread.currentThread().getContextClassLoader().getResourceAsStream(path));