传入的Django请求中的JSON数据在哪里？

Question

我正试图用Django/Python处理传入的JSON/Ajax请求。

^{}是请求的True，但我不知道JSON数据的有效负载在哪里。

request.POST.dir包含以下内容：

['__class__', '__cmp__', '__contains__', '__copy__', '__deepcopy__', '__delattr__',
 '__delitem__', '__dict__', '__doc__', '__eq__', '__ge__', '__getattribute__',
'__getitem__', '__gt__', '__hash__', '__init__', '__iter__', '__le__', '__len__',
 '__lt__', '__module__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', 
'__setattr__', '__setitem__', '__str__', '__weakref__', '_assert_mutable', '_encoding', 
'_get_encoding', '_mutable', '_set_encoding', 'appendlist', 'clear', 'copy', 'encoding', 
'fromkeys', 'get', 'getlist', 'has_key', 'items', 'iteritems', 'iterkeys', 'itervalues', 
'keys', 'lists', 'pop', 'popitem', 'setdefault', 'setlist', 'setlistdefault', 'update', 
'urlencode', 'values']

显然在请求发布密钥中没有密钥。

当我查看Firebug中的POST时，请求中会向上发送JSON数据。

Answer 1

方法1

客户端：作为JSON发送

$.ajax({
    url: 'example.com/ajax/',
    type: 'POST',
    contentType: 'application/json; charset=utf-8',
    processData: false,
    data: JSON.stringify({'name':'John', 'age': 42}),
    ...
});

//Sent as a JSON object {'name':'John', 'age': 42}

服务器：

data = json.loads(request.body) # {'name':'John', 'age': 42}

方法2

客户端：发送为x-www-form-urlencoded
（注：contentType&；processData已更改，不需要JSON.stringify）

$.ajax({
    url: 'example.com/ajax/',
    type: 'POST',    
    data: {'name':'John', 'age': 42},
    contentType: 'application/x-www-form-urlencoded; charset=utf-8',  //Default
    processData: true,       
});

//Sent as a query string name=John&age=42

服务器：

data = request.POST # will be <QueryDict: {u'name':u'John', u'age': 42}>

---

在1.5+：https://docs.djangoproject.com/en/dev/releases/1.5/#non-form-data-in-http-requests中更改

Non-form data in HTTP requests :
request.POST will no longer include data posted via HTTP requests with non form-specific content-types in the header. In prior versions, data posted with content-types other than multipart/form-data or application/x-www-form-urlencoded would still end up represented in the request.POST attribute. Developers wishing to access the raw POST data for these cases, should use the request.body attribute instead.

可能是相关的

• https://groups.google.com/forum/#!msg/django-developers/s8OZ9yNh-8c/yWeY138TpFEJ
• https://code.djangoproject.com/ticket/17942。固定在1.7中
• http://homakov.blogspot.in/2012/06/x-www-form-urlencoded-vs-json-pros-and.html