本文要實現(xiàn)的功能是：根據下拉列表的選項將數據庫中對應的內容顯示在頁面，選定要排除的選項后，提交剩余的選項到數據庫。

為了方便前后臺交互，利用了Ajax的GET和POST方法分別進行數據的獲取和提交。

代碼如下：

<!--利用獲取的數據進行表單內容的填充--><script>$("#soft_id").change(function(){var softtype=$("#soft_id").find("option:selected").text();var soft={'type_id':softtype}$.ajax( { type: 'GET', url:'/data/soft-filter/{{family}}', dataType: 'json', data:soft, success: function( data_get ){ build_dropdown( data_get, $( '#min_version' ), '請選擇最低版本' );//填充表單 build_dropdown( data_get, $( '#max_version' ), '請選擇最高版本' ); build_div(data_get,$('#soft_affected')); } });  }); var build_dropdown = function( data, element, defaultText ){ element.empty().append( '<option value="">' + defaultText + '</option>' ); if( data ){ $.each( data, function( key, value ){ element.append( '<option value="' + key + '">' + value + '</option>' ); } ); } } var build_div = function( data, element){ if( data ){ element.empty(); $.each( data, function( key, value ){  element.append(' <li class="clearfix"> <div class="todo-check pull-left"><input name="chk" type="checkbox" value="'+value+'" /></div> <div class="todo-title">'+value+' </div><div class="todo-actions pull-right clearfix"><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="todo-complete"><i class="fa fa-check"></i></a><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="todo-edit"><i class="fa fa-edit"></i></a><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="todo-remove"><i class="fa fa-trash-o"></i></a></div> </li>'); } ); }}</script>

<!--選擇并提交數據--><script>//選擇數據function postselect (){  var seleitem=new Array(); $("input[name='chk']").each(function(i){ if(!($(this).is( ":checked" )) ){  seleitem[i]=$(this).val();  // alert(seleitem[i]); }});//將排除后的數據提交到后臺數據庫var soft={'type_id':seleitem}$.ajax( { type: 'POST', url:'/data/soft-submit', dataType: 'json', data:soft, success: function( data_get ){ } });}</script>

部分html代碼為：

 <div style="overflow: hidden;" >      <ul id='soft_affected' class="todo-list sortable">      </ul> </div>

views.py中處理請求和響應代碼：

def soft_submit(request): if request.is_ajax():  id=request.POST.get('type_id') return HttpResponse("success")def soft_filter(request,fami): softtype='' ajax_release_version=[] release_version=[] if request.is_ajax():  softtype=request.GET.get('type_id')  soft_type=SoftTypeRef.objects.using('vul').filter(description=softtype)  soft_tp_id=0  for i in soft_type:   soft_tp_id= i.soft_type_id  web_soft=SoftWeb.objects.using('vul').filter(soft_type_id=soft_tp_id)  for i in web_soft:   ajax_release_ver=i.release_version   ajax_release_version.append(ajax_release_ver)  return HttpResponse(json.dumps(ajax_release_version), content_type='application/json')