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java读取properties配置文件[转]

网上文章常见的几种读取.properties文件的方式

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 

ResourceBundle rb = ResourceBundle.getBundle(name, Locale.getDefault());   

用ResourceBundle读取.properties文件可避免路径问题 
            我在jar里读取.properties文件时,总是找不到文件路径,后来用ResourceBundle读取.properties文件即可避免路径问题,代码如下: 
     

//process为文件名,切记不要加 .properties, URL是文件里的键名 

 ResourceBundle bundle = ResourceBundle.getBundle("com.ihandy.smsoc.app.process");     String s = bundle.getString("URL");  System.out.println(s);  pURL = s;  

3、使用java.util.PropertyResourceBundle类的构造函数 

InputStream in = new BufferedInputStream(new FileInputStream(name));   ResourceBundle rb = new PropertyResourceBundle(in);   

4、使用class变量的getResourceAsStream()方法 

InputStream in = 类名.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 = 类名.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);   

7、Servlet中可以使用javax.servlet.ServletContext的getResourceAsStream()方法 示例: 

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

 

java读取properties配置文件[转]