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 1.µÃµ½µ±Ç°µÄʱ¼ä
Calendar cal = Calendar.getInstance();
String time=formatter.format(cal.getTime());
String strEnd=time.substring(0, 16);// 2007-10-30 09:30
2.µÃµ½Ç°Ò»ÌìµÄʱ¼ä
Calendar c = Calendar.getInstance();
c.add(Calendar.DAY_OF_MONTH, -1);
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String mDateTime=formatter.format(c.getTime());
String strStart=mDateTime.substring(0, 16);//2007-10-29 09:30  
3.µÃµ½Ç°¼¸ÌìµÄʱ¼ä
Calendar c = Calendar.getInstance();
c.add(Calendar.DAY_OF_MONTH, -5);//µÃµ½Ç°5
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String mDateTime=formatter.format(c.getTime());
String strStart=mDateTime.substring(0, 16);//2007-10-24 09:30
4.µÃµ½µ±Ç°Ê±¼äµÄǰ¼¸ÄêµÄʱ¼ä
Calendar c = Calendar.getInstance();
c.add(Calendar.YEAR, -5);//µÃµ½Ç°5Äê
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String mDateTime=formatter.format(c.getTime());
String strStart=mDateTime.substring(0, 16);//2002-10-24 09:30
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Calendar c = Calendar.getInstance();
c.add(Calendar.DAY_OF_MONTH, -1);
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd 00:00:00");
String theDayBeforeToday = formatter.format(c.getTime());


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