MessageUtils:ResourceBundle访问properties文件

一个简单的ResourceBundle 例子

package com.app;

import java.io.Serializable;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.MissingResourceException;
import java.util.ResourceBundle;

import org.apache.commons.lang.StringUtils;

public class MessageUtils implements Serializable{

	/**
	 * @param args
	 */
	private static String locale;	
	private static ResourceBundle bind;
	private static String baseName;
	
	
	public static String getBaseName() {
		return baseName;
	}
	public static void setBaseName(String baseName) {
		MessageUtils.baseName = baseName;
		bind = null;
	}
	public static String getMessage(String key){
		String message = null;
		try {
			message = getBind().getString(key);
		} catch (MissingResourceException e) {
			return "@@ Not found message for key="+key;
		}
		if(StringUtils.isBlank(message)) return "@@ Not found message for key="+key;
		return message;
	}
	public static String getMessage(String key,Map<String,String> values){
		String message = null;
		try {
			message = getBind().getString(key);
		} catch (MissingResourceException e) {
			return "@@ Not found message for key="+key;
		}
		if(StringUtils.isBlank(message)) return "@@ Not found message for key="+key;
		if(values==null) return message;
		Iterator it = values.keySet().iterator();
		while(it.hasNext()){
			String paraName = it.next().toString();
			key.replaceAll("{"+paraName+"}", values.get(paraName).toString());
		}
		return message;
	}
	public static String getMessage(String key,String[] values){
		String message = null;
		try {
			message = getBind().getString(key);
		} catch (MissingResourceException e) {
			return "@@ Not found message for key="+key;
		}
		if(StringUtils.isBlank(message)) return "@@ Not found message for key="+key;
		if(values==null||values.length==0) return message;
		for(int i=0; i<values.length; i++){
			key.replaceAll("{"+i+"}", values[i]);
		}		
		return message;
	}
	public static String getMessage(String key,List<String> values){
		String message = null;
		try {
			message = getBind().getString(key);
		} catch (MissingResourceException e) {
			return "@@ Not found message for key="+key;
		}
		if(StringUtils.isBlank(message)) return "@@ Not found message for key="+key;
		if(values==null||values.size()==0) return message;
		for(int i=0; i<values.size(); i++){
			key.replaceAll("{"+i+"}", values.get(i));
		}		
		return message;
		
	}
	
	public String getLocale() {
		return locale;
	}
	public void setLocale(String locale) {
		this.locale = locale;
	}

	private static ResourceBundle getBind() {
		if(baseName==null) baseName = "locale.message";
		if (bind == null) {
			if (locale == null || locale.equals(""))
				//src/locale/message.properties
				bind = ResourceBundle.getBundle(baseName);
			else
				bind = ResourceBundle.getBundle(baseName + locale);
		}
		return bind;

	}
	public void setBind(ResourceBundle bind) {
		this.bind = bind;
	}
	
	public void reset(){
		bind = null;
		baseName = null;
		
	}
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		System.out.println(MessageUtils.getMessage("com.s2s3h3.app.testMessage",new String[]{"aaa","bbb"}));
		
		MessageUtils.setBaseName("struts");
		System.out.println(MessageUtils.getMessage("struts.login.pageName"));

	}

}