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"));

  }

}