设置一个中间件

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class  MiddlewareMixin( object ):
     def  __init__( self , get_response = None ):
         self .get_response  =  get_response
         super (MiddlewareMixin,  self ).__init__()
 
     def  __call__( self , request):
         response  =  None
         if  hasattr ( self ,  'process_request' ):
             response  =  self .process_request(request)
         if  not  response:
             response  =  self .get_response(request)
         if  hasattr ( self ,  'process_response' ):
             response  =  self .process_response(request, response)
         return  response
 
class  CORSMiddleware(MiddlewareMixin):
 
     def  process_response( self ,request,response):
         # 添加响应头
 
         # 允许你的域名来获取我的数据
         response[ 'Access-Control-Allow-Origin' ]  =  "*"
 
         # 允许你携带Content-Type请求头
         response[ 'Access-Control-Allow-Headers' ]  =  "Content-Type"
 
         # 允许你发送DELETE,PUT
         response[ 'Access-Control-Allow-Methods' ]  =  "DELETE,PUT"
 
         return  response　
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MiddlewareMixin是从源码copy过来的，自己有直接用自己的。

别忘了在setting里面配置。