String类日期比较

//String类日期比较private boolean compareTo(String endDate, String beginDate) {SimpleDateFormat df=new java.text.SimpleDateFormat("yyyy-MM-dd");Calendar c1=Calendar.getInstance();Calendar c2=Calendar.getInstance();try {c1.setTime(df.parse(endDate));c2.setTime(df.parse(beginDate));} catch (ParseException e) {logger.error("ActivityController>>>>>>>compareTo日期格式不正确",e);}int result=c1.compareTo(c2);if(result==0)//c1相等c2return false;else if(result<0)//c1小于c2return true;else//c1大于c2return false;}