Java获取当前时间30天之前的时间

      
//方法一
     SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); String maxDateStr = "2018-01-01"; String minDateStr = ""; Calendar calc =Calendar.getInstance(); try { calc.setTime(sdf.parse(maxDateStr)); calc.add(calc.DATE, -30); Date minDate = calc.getTime(); minDateStr = sdf.format(minDate); System.out.println("minDateStr:"+minDateStr); } catch (ParseException e1) { e1.printStackTrace(); }

 

方法二:

     Calendar now = Calendar.getInstance();
        now.add(Calendar.DAY_OF_MONTH, -30);
        String endDate = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(now.getTime());
        System.out.println(endDate);

 

方法三:

     
//java8 新特性
     LocalDateTime now = LocalDateTime.now(); now = now.minus(30, ChronoUnit.DAYS); System.out.println(now.toString());

 

 

方法四:

import org.apache.commons.lang3.time.DateUtils;

Date now = new Date();
Date startDate = DateUtils.addDays(now, -30);

 

方法五:

      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);

 

posted @ 2018-04-23 22:45  Mr_伍先生  阅读(50482)  评论(1编辑  收藏  举报