检测任意日期字符串是否属于当天的java实现方案

 1 public static boolean isToday(String str, String formatStr) throws Exception{
 2     SimpleDateFormat format = new SimpleDateFormat(formatStr);
 3     Date date = null;
 4     try {
 5         date = format.parse(str);
 6     } catch (ParseException e) {
 7         logger.error("解析日期错误", e);
 8     }
 9     Calendar c1 = Calendar.getInstance();              
10     c1.setTime(date);                                 
11     int year1 = c1.get(Calendar.YEAR);
12     int month1 = c1.get(Calendar.MONTH)+1;
13     int day1 = c1.get(Calendar.DAY_OF_MONTH);     
14     Calendar c2 = Calendar.getInstance(); 
15     c2.setTime(new Date());
16     int year2 = c2.get(Calendar.YEAR);
17     int month2 = c2.get(Calendar.MONTH)+1;
18     int day2 = c2.get(Calendar.DAY_OF_MONTH);   
19     if(year1 == year2 && month1 == month2 && day1 == day2){
20         return true;
21     }
22     return false;   
23 }