java获取当前时间前一周、前一月、前一年的时间

 

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");         Calendar c = Calendar.getInstance();                   //过去七天         c.setTime(new Date());         c.add(Calendar.DATE, - 7);         Date d = c.getTime();         String day = format.format(d);         System.out.println("过去七天："+day);                   //过去一月         c.setTime(new Date());         c.add(Calendar.MONTH, -1);         Date m = c.getTime();         String mon = format.format(m);         System.out.println("过去一个月："+mon);                   //过去三个月         c.setTime(new Date());         c.add(Calendar.MONTH, -3);         Date m3 = c.getTime();         String mon3 = format.format(m3);         System.out.println("过去三个月："+mon3);                   //过去一年         c.setTime(new Date());         c.add(Calendar.YEAR, -1);         Date y = c.getTime();         String year = format.format(y);         System.out.println("过去一年："+year);