Calendar日期类常用使用方法

阳光穿透心脏的1/2处 2022-01-19 01:11 479阅读 0赞

原博链接：https://blog.csdn.net/weixin_43052839/article/details/82015021

Calendar获取今天、昨天、近三天、近一周、近一月、本周、上周、本月、上月、本季度、上季度、本年、上一年开始时间和结束时间

  1. /** * 获取今日开始时间和结束时间 * @param condition * @return */
  2.     private void setDayRange(PageData condition){ 
  3.         Calendar calendar = Calendar.getInstance();
  4.         calendar.set(Calendar.MILLISECOND,0);
  5.         calendar.set(Calendar.SECOND,0);
  6.         calendar.set(Calendar.MINUTE,0);
  7.         calendar.set(Calendar.HOUR_OF_DAY,0);
  8.         condition.put("startTime",calendar.getTime());
  9.         calendar.set(Calendar.HOUR_OF_DAY,24);
  10.         condition.put("stopTime",calendar.getTime());
  11.     }
  13.     /** * 获取昨天开始时间和结束时间 * @param condition * @return */
  14.     private void setYesterdayRange(PageData condition) { 
  15.         Calendar calendar = Calendar.getInstance();
  16.         calendar.set(Calendar.MILLISECOND,0);
  17.         calendar.set(Calendar.SECOND,0);
  18.         calendar.set(Calendar.MINUTE,0);
  19.         calendar.set(Calendar.HOUR_OF_DAY,0);
  20.         condition.put("stopTime",calendar.getTime());
  21.         calendar.set(Calendar.HOUR_OF_DAY,-24);
  22.         condition.put("startTime",calendar.getTime());
  23.     }
  25.     /** * 获得最近三天的开始时间和结束时间 * @param condition * @return */
  26.     private void setThreeRange(PageData condition) { 
  27.         Calendar calendar = Calendar.getInstance();
  28.         calendar.set(Calendar.MILLISECOND,0);
  29.         calendar.set(Calendar.SECOND,0);
  30.         calendar.set(Calendar.MINUTE,0);
  31.         calendar.set(Calendar.HOUR_OF_DAY,24);
  32.         condition.put("stopTime",calendar.getTime());
  33.         calendar.set(Calendar.HOUR_OF_DAY,-72);
  34.         condition.put("startTime",calendar.getTime());
  35.     }
  37.     /** * 获得近一周的开始时间和结束时间 * @param condition * @return */
  38.     private void setDaySevenRange(PageData condition){ 
  39.         Calendar calendar = Calendar.getInstance();
  40.         calendar.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
  41.         calendar.set(Calendar.HOUR_OF_DAY,24);
  42.         condition.put("stopTime",calendar.getTime());
  43.         calendar.set(Calendar.HOUR_OF_DAY,-168);
  44.         condition.put("startTime",calendar.getTime());
  45.     }
  47.     /** * 获得近一月的开始时间和结束时间 * @param condition * @return */
  48.     private void setDayTRange(PageData condition){ 
  49.         Calendar calendar = Calendar.getInstance();
  50.         calendar.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
  51.         calendar.set(Calendar.HOUR_OF_DAY,24);
  52.         condition.put("stopTime",calendar.getTime());
  53.         calendar.set(Calendar.HOUR_OF_DAY,-720);
  54.         condition.put("startTime",calendar.getTime());
  55.     }
  57.     /** * 获取本周开始时间和结束时间 * @param condition * @return */
  58.     private void setWeekRange(PageData condition){ 
  59.         Calendar calendar = Calendar.getInstance();
  60.         calendar.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
  62.         calendar.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);
  63.         condition.put("startTime",calendar.getTime());
  64.         calendar.add(Calendar.DAY_OF_WEEK, 7);
  65.         condition.put("stopTime",calendar.getTime());
  67.         或者
  68.         int week = calendar.get(Calendar.DAY_OF_WEEK)-2;
  69.         calendar.add(Calendar.DATE, -week);
  70.         condition.put("startTime",dateToString(calendar.getTime()));
  71.         calendar.add(Calendar.DATE, 7-week);
  72.         condition.put("stopTime",dateToString(calendar.getTime()));
  73.     }
  75.     /** * 获取上周开始时间和结束时间 * @param condition * @return */
  76.     private void setLastWeekRange(PageData condition){ 
  77.         Calendar calendar = Calendar.getInstance();
  78.         calendar.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
  79.         calendar.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);
  80.         condition.put("stopTime",calendar.getTime());
  81.         calendar.add(Calendar.DAY_OF_WEEK, -7);
  82.         condition.put("startTime",calendar.getTime());
  83.     }
  85.     /** * 获取本月开始时间和结束时间 * @param condition * @return */
  86.     private void setMonthRange(PageData condition){ 
  87.         Calendar calendar = Calendar.getInstance();
  88.         calendar.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
  89.         calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMinimum(Calendar.DAY_OF_MONTH));
  90.         condition.put("startTime",calendar.getTime());
  91.         calendar.add(Calendar.DAY_OF_WEEK, 7);
  92.         calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));
  93.         calendar.set(Calendar.HOUR_OF_DAY, 24);
  94.         condition.put("stopTime",calendar.getTime());
  95.     }
  97.     /** * 获取上月开始时间和结束时间 * @param condition * @return */
  98.     private void setLastMonthRange(PageData condition){ 
  99.         Calendar calendar = Calendar.getInstance();
  100.         calendar.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
  101.         calendar.add(Calendar.MONTH, -1);
  102.         calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMinimum(Calendar.DAY_OF_MONTH));
  103.         condition.put("startTime",calendar.getTime());
  104.         calendar.add(Calendar.DAY_OF_WEEK, 7);
  105.         calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));
  106.         calendar.set(Calendar.HOUR_OF_DAY, 24);
  107.         condition.put("stopTime",calendar.getTime());
  108.     }
  110.     /** * 获取本季度开始时间和结束时间 * @param condition * @return */
  111.     private void setQuarterRange(PageData condition){ 
  112.         Calendar calendar = Calendar.getInstance();
  113.         calendar.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH),         calendar.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
  114.         int currentMonth = calendar.get(Calendar.MONTH) + 1;
  115.         try { 
  116.             if (currentMonth >= 1 && currentMonth <= 3)
  117.                 calendar.set(Calendar.MONTH, 0);
  118.             else if (currentMonth >= 4 && currentMonth <= 6)
  119.                 calendar.set(Calendar.MONTH, 3);
  120.             else if (currentMonth >= 7 && currentMonth <= 9)
  121.                 calendar.set(Calendar.MONTH, 6);
  122.             else if (currentMonth >= 10 && currentMonth <= 12)
  123.                 calendar.set(Calendar.MONTH, 9);
  124.             calendar.set(Calendar.DATE, 1);
  125.         } catch (Exception e) { 
  126.             e.printStackTrace();
  127.         }
  128.         condition.put("startTime",calendar.getTime());
  129.         calendar.add(Calendar.MONTH, 3);
  130.         condition.put("stopTime",calendar.getTime());
  131.     }
  133.     /** * 获取上季度开始时间和结束时间 * @param condition * @return */
  134.     private void setLastQuarterRange(PageData condition){ 
  135.         Calendar calendar = Calendar.getInstance();
  136.         calendar.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
  137.         int currentMonth = calendar.get(Calendar.MONTH) + 1;
  138.         try { 
  139.             if (currentMonth >= 1 && currentMonth <= 3)
  140.                 calendar.set(Calendar.MONTH, 0);
  141.             else if (currentMonth >= 4 && currentMonth <= 6)
  142.                 calendar.set(Calendar.MONTH, 3);
  143.             else if (currentMonth >= 7 && currentMonth <= 9)
  144.                 calendar.set(Calendar.MONTH, 6);
  145.             else if (currentMonth >= 10 && currentMonth <= 12)
  146.                 calendar.set(Calendar.MONTH, 9);
  147.             calendar.set(Calendar.DATE, 1);
  148.         } catch (Exception e) { 
  149.             e.printStackTrace();
  150.         }
  151.         calendar.add(Calendar.MONTH, -3);
  152.         condition.put("startTime",calendar.getTime());
  153.         calendar.add(Calendar.MONTH, 3);
  154.         condition.put("stopTime",calendar.getTime());
  155.     }
  158.     /** * 获取本年开始时间和结束时间 * @param condition * @return */
  159.     private void setYearRange(PageData condition){ 
  160.         Calendar calendar = Calendar.getInstance();
  161.         calendar.set(calendar.get(Calendar.YEAR), 0, calendar.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
  162.         calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMinimum(Calendar.DAY_OF_MONTH));
  163.         condition.put("startTime",calendar.getTime());
  164.         calendar.add(Calendar.YEAR, 1);
  165.         condition.put("stopTime",calendar.getTime());
  166.     }
  168.     /** * 获取上一年开始时间和结束时间 * @param condition * @return */
  169.     private void setLastYearRange(PageData condition){ 
  170.         Calendar calendar = Calendar.getInstance();
  171.         calendar.set(calendar.get(Calendar.YEAR), 0, calendar.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
  172.         calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMinimum(Calendar.DAY_OF_MONTH));
  173.         calendar.add(Calendar.YEAR, -1);
  174.         condition.put("startTime",calendar.getTime());
  175.         calendar.add(Calendar.YEAR, 1);
  176.         condition.put("stopTime",calendar.getTime());
  177.     }
  179.     /** * （"startTime" -> "Fri Jun 08 00:00:00 CST 2018"）String的Date转为String类型的date */
  180.     private String strToformatDate(String date){ 
  181.         String str="";
  182.         Date date1=new Date();
  183.         try { 
  184.             DateFormat df = new SimpleDateFormat("EEE MMM dd HH:mm:ss zzz yyyy", Locale.US);
  185.             date1 = df.parse(date);
  186.             df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
  187.             str = df.format(date1);
  188.         }catch (Exception e){ 
  189.             e.printStackTrace();
  190.         }
  191.         return str;
  192.     }
  194.     /** * （"startTime" -> "Fri Jun 08 00:00:00 CST 2018"）String的Date转为时间戳 */
  195.     public long toformatDate(String date){ 
  196.         String str="";
  197.         Date date1=new Date();
  198.         try { 
  199.             DateFormat df = new SimpleDateFormat("EEE MMM dd HH:mm:ss zzz yyyy", Locale.US);
  200.             date1 = df.parse(date);
  201.             System.err.println(date1.getTime()/1000);
  202.         }catch (Exception e){ 
  203.             e.printStackTrace();
  204.         }
  205.         return date1.getTime()/1000;
  206.     }
  208. /** * 测试 */
  209. public static void main(String[] args) { 
  210.     PageData condition = new PageData();
  211.     setLastQuarterRange(condition);
  212.     String startTime=String.valueOf(strToformatDate(condition.get("startTime").toString()));
  213.     String stopTime=String.valueOf(strToformatDate(condition.get("stopTime").toString()));
  214.     System.out.println(startTime+"--->"+stopTime);
  215. }
  217. /** * 得到n天之后是周几 * @param days * @return */
  218. public static String getAfterDayWeek(String days) { 
  219.         int daysInt = Integer.parseInt(days);
  220.         Calendar canlendar = Calendar.getInstance(); // java.util包
  221.         canlendar.add(Calendar.DATE, daysInt); // 日期减 如果不够减会将月变动
  222.         Date date = canlendar.getTime();
  223.         SimpleDateFormat sdf = new SimpleDateFormat("E");
  224.         String dateStr = sdf.format(date);
  225.         return dateStr;
  226. }
  228. /** * 得到n天之后的当前时间 * @param days * @return */
  229. public static String getAfterDayDate(String days) { 
  230.         int daysInt = Integer.parseInt(days);
  231.         Calendar canlendar = Calendar.getInstance(); // java.util包
  232.         canlendar.add(Calendar.DATE, daysInt); // 日期减 如果不够减会将月变动
  233.         Date date = canlendar.getTime();
  234.         SimpleDateFormat sdfd = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
  235.         String dateStr = sdfd.format(date);
  236.         return dateStr;
  237. }
  239.  /** * 得到几分钟后的时间 * @param date minute（可为正负） * @return */
  240. public static Date getAfterTimeDate(Date date,int minute) { 
  241.     Calendar canlendar = Calendar.getInstance(); // java.util包
  242.     canlendar.setTime(date);
  243.     canlendar.add(Calendar.MINUTE, minute); // 日期减 如果不够减会将月变动
  244.     return canlendar.getTime();
  245. }
  247.  /** * 时间相减得到天数（开始时间和结束时间可任意大小） * @param beginDateStr（格式为"yyyy-MM-dd"，也可为"yyyy-MM-dd hh:mm:ss"） * @param endDateStr * @return long */
  248.    public static long getDaySub(String beginDateStr,String endDateStr){ 
  249.        long day=0;
  250.        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
  251.        //SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
  252.        Date beginDate = null;
  253.        Date endDate = null;
  254.        try { 
  255.         beginDate = format.parse(beginDateStr);
  256.         endDate= format.parse(endDateStr);
  257. } catch (ParseException e) { 
  258.         e.printStackTrace();
  259. }
  260.        day=(endDate.getTime()-beginDate.getTime())/(24*60*60*1000);
  261.        //System.out.println("相隔的天数="+day);
  262.        return day;
  263.    }
  265.    private String dateToString(Date date){ 
  266.         DateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
  267.         return format.format(date);
  268.   }

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