Grails - 编辑时的jQuery datepicker错误

Question

我让jQuery的datepicker工作，并按照几天前的方式保存日期。但是现在，当我尝试编辑条目时出现错误。我认为它与Grails从DB导入日期的方式有关。请把我指向正确的方向。 我使用了自定义taglib。

import org.springframework.web.servlet.support.RequestContextUtils as RCU 

/** 
* 
* A datepicker based on JQuery datepicker (http://jqueryui.com/datepicker/) and (mostly) compatible with the Grails framework 
* 
* Version 0.1 - 27/02/2014 
* 
* Supported attributes: 
* - name  : will be used as name and if for the actual input field 
* - value  : default value 
* - option : options to pass to datepicker {key1: value1, key2: value2, ...}. See API: http://api.jqueryui.com/datepicker/ 
* - locale : locale to be used. If not passed, it will take the grails session's locale (first two letters). jquery.datepicker's locale files should be available to your app: https://github.com/jquery/jquery-ui/tree/master/ui/i18n 
* - class  : HTML classes to apply to the visible field 
* - required : HTML required attribute 
* 
* Setup: 
* - make sure JQuery-UI and JQuery are installed 
* - put this class in your grails-app/tablib folder 
* 
* Example: 
* <g:datepickerUI name="myDate" required="true" value="${myDomainClass?.myDate?:new Date()}" options="{minDate:'0', maxDate:'+10Y'}" class="form-control"/> 
* 
* 
* Tested with: 
* - JQuery-1.11.1 
* - JQueryUI-1.11.3 
* - Grails 2.4.4 
*/ 


//Renders the content from DB to GSP preserving newlines 
class JQueryUITagLib { 
    def datepickerUI = { attrs -> 
     def name = attrs['name']?:'myDateField' 
     def value = attrs['value'] 
     def options = attrs['options']?:'{}' //{key1: value1, key2: value2, ...} 
     def locale = attrs['locale']?:RCU.getLocale(request).toString().substring(0,2) 
     def htmlClass = attrs['class'] 
     def htmlRequired = attrs['required']?"required = 'true'":'' 
     def placeholder = attrs['placeholder']?:'' 

     def namePicker = name+"_picker"; 
     def nameDay = name+"_day"; 
     def nameMonth = name+"_month"; 
     def nameYear = name+"_year"; 

     def c = null 
     def day; 
     def month; 
     def year; 
     if(value!=null){ 
      if(value instanceof Calendar) { 
       c = value 
      } else { 
       c = new GregorianCalendar(); 
       c.setTime(value) 
      } 
      day = c.get(GregorianCalendar.DAY_OF_MONTH) 
      month = c.get(GregorianCalendar.MONTH)+1 
      year = c.get(GregorianCalendar.YEAR) 
     } 

     out << "\ 
     <input type='text' id='${namePicker}' name='${namePicker}' placeholder='${placeholder}' class='${htmlClass}' ${htmlRequired} style='position: relative; z-index:100;'/>\ 
     \ 
     \ 
     <input type='hidden' id='${name}' name='${name}' value='date.struct' />\ 
     \ 
     <input type='hidden' id='${nameDay}' name='${nameDay}' value='${day}' />\ 
     <input type='hidden' id='${nameMonth}' name='${nameMonth}' value='${month}' />\ 
     <input type='hidden' id='${nameYear}' name='${nameYear}' value='${year}' />\ 
     " 

     out << "\ 
     <script type='text/javascript'>\ 
     \$(document).ready(function(){\n\ 
      \$('#${namePicker}').datepicker(${options});\n\ 
      \$('#${namePicker}').datepicker('option',\$.datepicker.regional['${locale}']);\n\ 
      \$('#${namePicker}').on('change', function(){\n\ 
       selDate = \$('#${namePicker}').datepicker('getDate');\n\ 
       \$('#${nameDay}').val(selDate?selDate.getDate():null);\n\ 
       \$('#${nameMonth}').val(selDate?selDate.getMonth()+1:null);\n\ 
       \$('#${nameYear}').val(selDate?selDate.getFullYear():null);\n\ 
      });\n\ 
      var dateFormat = \$('#${namePicker}').datepicker('option', 'dateFormat');\n\ 
     " 
     // If a value is specified it overrides the default date 
     if(attrs['value']){ 
      out << "\ 
       //Set date from value\n\ 
       \$('#${namePicker}').datepicker('option', 'defaultDate',new Date(${year},${month-1},${day}));\n\ 
       " 
     } 
     out << "\ 
      var defaultDate = \$('#${namePicker}').datepicker('option', 'defaultDate');\n\ 
      //Set default date\n\ 
      \$('#${namePicker}').val(\$.datepicker.formatDate(dateFormat, defaultDate))\n\ 
     });\n\ 
     </script>\ 
     \ 
     " 
    } 
} 

这是我得到的错误。

Class 
groovy.lang.MissingMethodException 
Message 
No signature of method: java.util.GregorianCalendar.setTime() is applicable for argument types: (java.lang.String) values: [02-Mar-2006] Possible solutions: setTime(java.util.Date), getTime(), clearTime(), setTimeZone(java.util.TimeZone), setTimeZone(java.util.TimeZone), getAt(java.lang.String 

）

Answer 1

错误，因为当你在你的GSP初始化日期选择：你在值字符串，而不是日期输入。因此，重新检查它并尝试value =“$ {new Date（）}”，如果它再次抛出错误，请在评论中对我进行ping。

UPD。更多留言