Java Properties

 import java.io.*;  
 import java.util.Properties;  
 public class PropertiesDemo {  
     /**  
      * File Name: some.prop  
      * Content : msg= Hello World.  
      */  
     public static void main(String[] args) throws IOException {  
         // First you must create a file named "some.prop" then choose it .  
         FileInputStream fis = new FileInputStream("some.prop");  
         Properties prop = new Properties();  
         prop.load(fis); // Load properties from file input stream  
         String meesage = (String) prop.get("msg"); // get entry key  
         System.out.println(meesage);// print it out  
         prop.setProperty("msg", "modified Hello World");// add or modify new properties.  
         FileOutputStream fos = new FileOutputStream("some.prop");// Get property source file again.  
         prop.store(fos, "modified propery file");// Save the newest contents into the property file  
         prop.list(System.out);// List them out.  
     }  
 }  

相關連結:
http://goodideascome.blogspot.com/2011/12/spring-ioc-with-hello-world-example.html