根据当前系统时间获取工作日日期

 /**
     * 根据当前时间获取本周周一日期
     * @return
     */
    public static String  getOneWeeks(){
    	Calendar cal =Calendar.getInstance();
        SimpleDateFormat df = new SimpleDateFormat("yyyyMMdd");
        cal.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY); //获取本周一的日期
        return df.format(cal.getTime());
    }
  /**
	 * 日期增加天数
	 * @param date1
	 * @return
	 * @throws Exception
	 */
	public static String  addDays(String date,int Days) {
		if(date==null||date.length()!=8){
			return null;			
		}
		Calendar calendar =  Calendar.getInstance() ; //= new Calendar(2011,9,13);
		calendar.set(Integer.parseInt(date.substring(0,4)), 
				     Integer.parseInt(date.substring(4,6))-1, 
				     Integer.parseInt(date.substring(6,8)));//指定一个日期 
		calendar.add(Calendar.DATE, Days);
		SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
		return sdf.format(calendar.getTime());
		
	}
  public static void main(String[] args) throws ParseException {
    	//江湖动态日期
    			String travelDate = "";
    			String travelBeginDate = "";
    			String travelEndDate = "";
				travelBeginDate = DateUtils.getOneWeeks();
				travelEndDate = DateUtil.addDays(travelBeginDate, 4);
				
				travelDate = DateUtils.convertDateTime3(travelBeginDate) + "-" +DateUtils.convertDateTime3(travelEndDate);
    		System.out.println("travelBeginDate="+travelBeginDate);
    		System.out.println("travelEndDate="+travelEndDate);
    		System.out.println("travelDate="+travelDate);
    	
	}