private String loadSysPath(){
  String temp = "./cluster/siteId/conf/netMap.properties";
  if(temp.indexOf("siteId")!=-1){
   String siteId= ContextHolder.getContext().getSiteId();
   temp = temp.replaceAll("siteId", siteId);
  }  
  return temp;
 }
 
 /**
  * 修改郵箱上限值
  * @param key 郵箱關鍵字
  * @param value 郵箱上限值
  * @return
  */
 public void changePropertiesValue( @Read(key = "key") String key,@Read(key = "value") String value) {
  
       Properties p = new Properties();  
        FileInputStream in;  
        try {
         String propertiesPath = this.loadSysPath();
            in = new FileInputStream(propertiesPath);  
            p.load(in);
            in.close();
            p.setProperty(key,value);//設定屬性值，如屬性不存在新建
            FileOutputStream out=new FileOutputStream(propertiesPath);//輸出流
            p.store(out,"netMap set");//設定屬性頭，如不想設定，請把後面一個用""替換掉
            out.flush();//清空快取，寫入磁碟
            out.close();//關閉輸出流
        } catch (Exception e) {
            logger.error("changePropertiesValue failed in ManageIndexAction",e);
        }  
     
 }

 /**
  * 獲取郵箱上限值
  * @param key 郵箱關鍵字 
  * @return 郵箱儲存最大值，-1為讀取數值失敗
  */
 public String getNetMapPropertiesValue(String key) {
  String s = "";
  String type = "0";
        Properties p = new Properties();//載入屬性檔案讀取類  
        FileInputStream in=null;
        OutputStreamWriter os=null;       
        String propertiesPath = this.loadSysPath();
        try { 
         
         File file= new File(propertiesPath);
         //判斷檔案是否存在，不存在建立並新增該郵箱的預設上限數量
         if(!file.exists()){
          String ss = propertiesPath.substring(0, propertiesPath.lastIndexOf("/"));
          File root= new File(ss);
          if (!root.exists())  {
        root.mkdirs();    
       }       
       os = new OutputStreamWriter(new FileOutputStream(file));   
                os.close();
               
                changePropertiesValue(key,"0");
         }
            //propertiesFileName如test.properties  
            in = new FileInputStream(propertiesPath);//以流的形式讀入屬性檔案  
            p.load(in);//屬性檔案將該流加入的可被讀取的屬性中  
            in.close();//讀完了關閉  
            s = p.getProperty(key);//取得對應的屬性值 
            if(StringUtils.isBlank(s)){
              changePropertiesValue(key,"0");
              s = "0";
            }
            type = s;
        } catch (Exception e) {  
          logger.error(" getMaxNumByMsgBoxType error in PrivateMessageServiceImpl ",e);
        }finally{
         try{
          if(in!= null){
           in.close();           
          }if(os != null){
           os.close();
          }
         }catch(Exception ex){
           logger.error(ex);
         }
        }       
        return type;
 }