根据当前系统时间获取工作日日期

• 2019 年 11 月 7 日
• 筆記

 /**       * 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);    	}