Java 读取属性文件

// messages.hello.properties
id=001
name=惜缘
love=I think,therefor i am.
friends=Hi! {0} and {1} ,how are you?
// org.PropertiesUtil.java
package org;
import java.io.UnsupportedEncodingException;
import java.text.MessageFormat;
import java.util.Locale;
import java.util.MissingResourceException;
import java.util.ResourceBundle;
public class PropertiesUtil {
private static String encoding = "UTF-8";
/**
* read the message with key from the resource bundle
* @param bundlePath
* @param key
* @return
*/
public static String getString(String bundlePath,String key){
return getString(bundlePath,key,null);
}
/**
* read the message with key from the resource bundle
* @param bundlePath
* @param key
* @param args
* @return
*/
public static String getString(String bundlePath,String key,Object[] args){
// we will throw a MessingResourceException if the bundle name is invalid
ResourceBundle bundle = getBundle(bundlePath);
try{
String msg = bundle.getString(key);
if(msg == null){
return "";
}
// change the message encoding
msg = convertISO(msg);
return msg = MessageFormat.format(msg, args);
} catch(MissingResourceException e){
return "";
}
}
/**
* get ResourceBundle with bundlePath
* @param bundlePath
* @return
* @throws MissingResourceException if resource is messing
*/
private static ResourceBundle getBundle(String bundlePath){
Locale locale = Locale.getDefault();
ResourceBundle bundle = ResourceBundle.getBundle(bundlePath,locale,getClassLoader());
return bundle;
}
/**
* get the current ClassLoader
* @return
*/
protected static ClassLoader getClassLoader(){
return PropertiesUtil.class.getClassLoader();
}
/**
* convert msg encoding
* @param msg
* @return
*/
public static String convertISO(String msg){
if(msg != null){
try{
return new String(msg.getBytes("iso-8859-1"),getEncoding());
} catch(