【java】使用SimpleDateFormat转化字符串为时间戳

	    //begin add by yuan.wang,202206/11.字符串转UTC   
	    long timeStampStartTime = 0;  
		try {
				String hh = "2022-06-11 16:00:00";
		        SimpleDateFormat DateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		        Date ssDate = DateFormat.parse(hh);
		        timeStampStartTime= ssDate.getTime();
		        
		    	System.out.println(ssDate);  
		        System.out.println(ssDate.getTime());  
		} catch (ParseException e1) {
			// TODO Auto-generated catch block
			e1.printStackTrace();
		}
		Criteria.StartTime.Seconds = (int)(timeStampStartTime/1000);
	    Criteria.StartTime.Millisecs = 0;
	    //end add by yuan.wang.