python之使用django时如何在ajax调用中传递request.user

我正在尝试将 json 数据发送到我网站上的 django 后端。当我想在 View 函数中获取用户对象时，出现了“AnonymousUser”错误。 下面是我的代码:

我的 api View :

@api_view(['GET','POST']) 
def add_vote(request): 
    if request.method =='POST': 
 
        #I think this is where I can't figure out a way to deal with 
        user = request.user 
 
        serializer = VoteSerializer(data=request.data) 
        if serializer.is_valid(): 
            instance = serializer.save(creator=user) 
            return redirect(instance) 
        return Response(serializer.errors) 
    if request.method == 'GET': 
        votes = VoteTitle.objects.all() 
        serializer = VoteSerializer(votes,many=True) 
        print(request.user) 
        return Response(serializer.data) 

这是我的发送函数(一个 react 类函数):

sent_json() { 
    let send_json = { 
        title: this.state.title, 
        subjects: [], 
    }; 
    send_json.subjects = this.state.subjects.map((object) => ({ 
        name: object 
    })); 
    send_json = JSON.stringify(send_json); 
    console.log(send_json); 
    let csrftoken = Cookies.get('csrftoken'); 
    console.log(csrftoken); 
 
    let header = { 
        "method": 'POST', 
        "body": send_json, 
        "headers": { 
            "X-CSRFToken": csrftoken, 
            "Accept": "application/json", 
            "Content-Type": "application/json", 
        } 
    }; 
    fetch('http://127.0.0.1:8000/voteapp/add/', header).then(function(response) { 
        console.log(response); 
        return response.json(); 
    }).then(function(response) { 
        console.log(response); 
    }).catch(function(error) { 
        alert(error); 
    }); 
} 

django 后端显示的错误信息:

Internal Server Error: /voteapp/add/ 
Traceback (most recent call last): 
  File "/Users/phil/Desktop/Web-Development/mini-blog/env/lib/python3.5/site-packages/django/core/handlers/exception.py", line 42, in inner 
    response = get_response(request) 
  File "/Users/phil/Desktop/Web-Development/mini-blog/env/lib/python3.5/site-packages/django/core/handlers/base.py", line 187, in _get_response 
    response = self.process_exception_by_middleware(e, request) 
  File "/Users/phil/Desktop/Web-Development/mini-blog/env/lib/python3.5/site-packages/django/core/handlers/base.py", line 185, in _get_response 
    response = wrapped_callback(request, *callback_args, **callback_kwargs) 
  File "/Users/phil/Desktop/Web-Development/mini-blog/env/lib/python3.5/site-packages/django/views/decorators/csrf.py", line 58, in wrapped_view 
    return view_func(*args, **kwargs) 
  File "/Users/phil/Desktop/Web-Development/mini-blog/env/lib/python3.5/site-packages/django/views/generic/base.py", line 68, in view 
    return self.dispatch(request, *args, **kwargs) 
  File "/Users/phil/Desktop/Web-Development/mini-blog/env/lib/python3.5/site-packages/rest_framework/views.py", line 489, in dispatch 
    response = self.handle_exception(exc) 
  File "/Users/phil/Desktop/Web-Development/mini-blog/env/lib/python3.5/site-packages/rest_framework/views.py", line 449, in handle_exception 
    self.raise_uncaught_exception(exc) 
  File "/Users/phil/Desktop/Web-Development/mini-blog/env/lib/python3.5/site-packages/rest_framework/views.py", line 486, in dispatch 
    response = handler(request, *args, **kwargs) 
  File "/Users/phil/Desktop/Web-Development/mini-blog/env/lib/python3.5/site-packages/rest_framework/decorators.py", line 52, in handler 
    return func(*args, **kwargs) 
  File "/Users/phil/Desktop/Web-Development/mini-blog/blog/voteapp/views.py", line 19, in add_vote 
    instance = serializer.save(creator=user) 
  File "/Users/phil/Desktop/Web-Development/mini-blog/env/lib/python3.5/site-packages/rest_framework/serializers.py", line 215, in save 
    self.instance = self.create(validated_data) 
  File "/Users/phil/Desktop/Web-Development/mini-blog/blog/voteapp/serializers.py", line 17, in create 
    vote = VoteTitle.objects.create(**data) 
  File "/Users/phil/Desktop/Web-Development/mini-blog/env/lib/python3.5/site-packages/django/db/models/manager.py", line 85, in manager_method 
    return getattr(self.get_queryset(), name)(*args, **kwargs) 
  File "/Users/phil/Desktop/Web-Development/mini-blog/env/lib/python3.5/site-packages/django/db/models/query.py", line 397, in create 
    obj = self.model(**kwargs) 
  File "/Users/phil/Desktop/Web-Development/mini-blog/env/lib/python3.5/site-packages/django/db/models/base.py", line 537, in __init__ 
    setattr(self, field.name, rel_obj) 
  File "/Users/phil/Desktop/Web-Development/mini-blog/env/lib/python3.5/site-packages/django/db/models/fields/related_descriptors.py", line 211, in __set__ 
    self.field.remote_field.model._meta.object_name, 
ValueError: Cannot assign "<django.contrib.auth.models.AnonymousUser object at 0x1045995f8>": "VoteTitle.creator" must be a "User" instance. 

错误信息提醒:

SyntaxError (DOM Exception 12): The string did not match the expected pattern. 

浏览器中的错误信息:

Failed to load resource: the server responded with a status of 500 (Internal Server Error) 

我确信我已经登录了，所以我一定是错过了什么。

请您参考如下方法:

在您的 JavaScript 中，在您使用 fetch 时包含凭据:

let header = { 
  "method":'POST', 
  "body": send_json, 
  "credentials": 'include', 
  "headers":{ 
  "X-CSRFToken": csrftoken, 
  "Accept": "application/json", 
  "Content-Type": "application/json", 
  } 
}; 

在 Django View 中，您应该像您已经在做的那样使用 request.user。