时间处理
写道1.得到当前的时间 Calendar cal = Calendar.getInstance(); String time=formatter.format(cal.getTime()); String strEnd=time.substring(0, 16);// 2007-10-30 09:30 Calendar cal = Calendar.getInstance(); String time=formatter.format(cal.getTime()); String strEnd=time.substring(0, 16);// 2007-10-30 09:30 2.得到前一天的时间 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 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.得到前几天的时间 Calendar c = Calendar.getInstance(); c.add(Calendar.DAY_OF_MONTH, -5);//得到前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 Calendar c = Calendar.getInstance(); c.add(Calendar.DAY_OF_MONTH, -5);//得到前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.得到当前时间的前几年的时间 Calendar c = Calendar.getInstance(); c.add(Calendar.YEAR, -5);//得到前5年 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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