具有DateTime的GWT（检查送达日在有效日期） [英] GWT with DateTime ( Checking giving day is in valid days )

问题描述

我想通过 GWT 中的日期获得丰富的设施问题，就像 JAVA日历对象。但不幸的是，我不能在客户端使用它，因为这不是在仿真课程。我非常懒惰，不仅要编写代码，还要导入另一个库，所以我想通过 GWT 进行准备就绪的功能。

  *条件取决于今天
  

• 如果今天< = 3（有效日期范围是 > 上个月的第一天 到 今天）


• else（有效日期范围是从
  

  这里我的代码...

    private boolean isInValidDateRange（final Date checkDate）{
   Date dateDate = new Date（）; 
   int currentDay = Integer.parseInt（DateTimeFormat.getFormat（dd）。format（todayDate））; 
   Date startDate = null; 
   //结束日期总是今天
  日期endDate = new Date（）; 
   if（currentDay< = 3）{
   // shift to上个月
   CalendarUtil.addMonthsToDate（todayDate，-1）; 
   //设置为月的第一天
   CalendarUtil.setToFirstDayOfMonth（todayDate）; 
   startDate = todayDate; 
   
  } 
   else {
   //设置为月的第一天
   CalendarUtil.setToFirstDayOfMonth（todayDate）; 
   startDate = todayDate; 
  } 
   return（CalendarUtil.getDaysBetween（startDate，checkDate）> = 0&& 
   CalendarUtil.getDaysBetween（checkDate，endDate）> = 0）; 
  } 
    

  我多次搜索我的问题的答案。但是大部分都是导致 Java日历 对象。

  
  
  

  我的问题是如何通过简单的方法或我可以把它转换成简单的代码吗？

  解决方案

  您可以使用Sencha GXT DateWrapper而不是实现Java日历

  
  
  

  date wrapper docs

  
  

  I want to get rich facilities concerns with Date in GWT as like JAVA Calendar Object. But unfortunately , I can't use it in client side due to that is not in Emulation Classes. I am so lazy not only to write hard code but also to import another libraries , so I want to get ready made functions these are made by GWT.

  My problem is checking given day , is that in valid days range ?

  *Condition depends on Today
  

  • If today <= 3 ( valid days range is from fist day of previous month to today)
  • else ( valid days range is from fist day of this month to today)

  Here my codes...

      private boolean isInValidDateRange(final Date checkDate) {
      Date todayDate = new Date();
      int currentDay = Integer.parseInt(DateTimeFormat.getFormat("dd").format(todayDate));
      Date startDate = null;
      // End date will always today
      Date endDate = new Date();
      if (currentDay <= 3) {
          // shift to previous month
          CalendarUtil.addMonthsToDate(todayDate, -1);
          // set to first day of month
          CalendarUtil.setToFirstDayOfMonth(todayDate);
          startDate = todayDate;
  
      }
      else {
          // set to first day of month
          CalendarUtil.setToFirstDayOfMonth(todayDate);
          startDate = todayDate;
      }
      return (CalendarUtil.getDaysBetween(startDate, checkDate) >= 0 && 
              CalendarUtil.getDaysBetween(checkDate,endDate) >= 0);
  }
  

  I googled many times to get answers for my problems. But most of them lead to Java Calendar Object.

  My question is how to get it by easy way or can I convert it to simply codes?

  解决方案

  you can use Sencha GXT DateWrapper instead of implement Java Calendar

  date wrapper docs

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