Python 为什么json请求的响应是空的?

Python 为什么json请求的响应是空的?,python,json,django,rpc,spyne,Python,Json,Django,Rpc,Spyne,我有一个工作应用程序,它接受SOAP请求,处理请求,将SOAP请求转发给API,处理响应,然后将响应转发给客户端 我正在尝试更改此应用程序,以便在我的应用程序和客户端之间使用JSON,但在API和应用程序之间仍然使用SOAP class MyDjangoApplication(DjangoApplication): def __call__(self, request, *args, **kwargs): retval = self.HttpResponseObject() d

我有一个工作应用程序,它接受SOAP请求,处理请求,将SOAP请求转发给API,处理响应,然后将响应转发给客户端

我正在尝试更改此应用程序,以便在我的应用程序和客户端之间使用JSON,但在API和应用程序之间仍然使用SOAP

class MyDjangoApplication(DjangoApplication):
def __call__(self, request, *args, **kwargs):
    retval = self.HttpResponseObject()

    def start_response(status, headers):
        # Status is one of spyne.const.http
        status, reason = status.split(' ', 1)

        retval.status_code = int(status)
        for header, value in headers:
            retval[header] = value

    environ = request.META.copy()

    if request.method == 'POST':
        response = self.handle_rpc(environ, start_response)
    else:
        home_path = reverse('proxy:list_method')

        uri = MY_ENDPOINT_URL or request.build_absolute_uri(home_path)

        # to generate wsdl content
        response = self._WsgiApplication__handle_wsdl_request(environ, start_response, uri)

        if request.path == home_path and _is_wsdl_request(environ):
            fn = None
        elif 'method_name' in kwargs:
            fn = view_method
        else:
            fn = list_method

        if fn:
            return fn(request, app=self, *args, **kwargs)

    self.set_response(retval, response)

    return retval
现在,它可以成功地接受来自客户端的JSON请求,并使用API发送/接收SOAP。但是,对客户端的所有响应都是空的

我收到非空响应的唯一情况是,我的JSON请求存在验证错误

下面是一些可能相关的代码

app = Application([MyServer],
              MY_NAMESPACE,
              in_protocol=JsonDocument(validator='soft'),
              out_protocol=JsonDocument())

application_server = csrf_exempt(MyDjangoApplication(app))
Mydjango应用程序的定义

class MyDjangoApplication(DjangoApplication):
def __call__(self, request, *args, **kwargs):
    retval = self.HttpResponseObject()

    def start_response(status, headers):
        # Status is one of spyne.const.http
        status, reason = status.split(' ', 1)

        retval.status_code = int(status)
        for header, value in headers:
            retval[header] = value

    environ = request.META.copy()

    if request.method == 'POST':
        response = self.handle_rpc(environ, start_response)
    else:
        home_path = reverse('proxy:list_method')

        uri = MY_ENDPOINT_URL or request.build_absolute_uri(home_path)

        # to generate wsdl content
        response = self._WsgiApplication__handle_wsdl_request(environ, start_response, uri)

        if request.path == home_path and _is_wsdl_request(environ):
            fn = None
        elif 'method_name' in kwargs:
            fn = view_method
        else:
            fn = list_method

        if fn:
            return fn(request, app=self, *args, **kwargs)

    self.set_response(retval, response)

    return retval
MyServer的定义

class MyServer(ServiceBase):
    @rpc(MyTestMethodRequest, Sign, **method(_returns=MyTestMethodResponse))
    @check_method()
    def TestMethod(ctx, request, signature):
        response = {
            'Data': "test"
        }
        return response
MyTestMethodRequest、MyTestMethodResponse的定义:

class MyTestMethodRequest(ComplexModel):
    __namespace__ = MY_NAMESPACE

    MyString = String(encoding=STR_ENCODING)


class MyTestMethodResponse(ComplexModel):
    __namespace__ = MY_NAMESPACE

    Data = String(encoding=STR_ENCODING)
检查方法的定义:

def check_method(error_handler=None):
    def _check_method(func):
        method_name = func.__name__

        def __check_method(ctx, request, signature, *args, **kwargs):
            if hasattr(request, '__dict__'):
                request = request.__dict__

            if hasattr(signature, '__dict__'):
                signature = signature.__dict__

            response = func(ctx, request or {}, signature or {}, *args, **kwargs)

            # setting output protocol
            output_message = generate_out_string(ctx, [response])

            return response

        __check_method.__name__ = method_name
        __check_method.__doc__ = func.__doc__

        return __check_method

    return _check_method
生成输出字符串的定义:

def generate_out_string(ctx, objects):
    ctx.out_protocol = ctx.in_protocol

    return _generate_out_string(ctx, objects)

def _generate_out_string(ctx, objects):
    protocol = ctx.out_protocol

    ctx.out_object = objects

    protocol.serialize(ctx, protocol.RESPONSE)
    protocol.create_out_string(ctx)

    out_string = list(ctx.out_string)

    return out_string[0] if out_string else ''

注意:这些定义中的大多数都被简化了(我删除了一些我认为不相关的行)

看看你发布的代码,我不能说我理解所有这些围绕参数的附加修饰符和修饰符有什么用

删除它们可以解决所有问题

因此,让我们:

class MyTestMethodRequest(ComplexModel):
    __namespace__ = MY_NAMESPACE

    MyString = Unicode


class MyTestMethodResponse(ComplexModel):
    __namespace__ = MY_NAMESPACE

    Data = Unicode
假设您有以下服务:

class MyService(ServiceBase):
    @rpc(MyTestMethodRequest, Sign, _returns=MyTestMethodResponse)
    def TestMethod(ctx, request, signature):
        return MyTestMethodResponse(data="test")
你可以有:

app_json = Application([MyService],
              MY_NAMESPACE,
              in_protocol=JsonDocument(validator='soft'),
              out_protocol=JsonDocument())

您可以像往常一样将其传递给
DjangoApplication

app_json_dja = csrf_exempt(DjangoApplication(app_json))

app_soap_dja = csrf_exempt(DjangoApplication(app_soap))
然后,您可以将其装载到Django的url路由器中


我希望这有帮助

当您使用普通应用程序时,它工作吗?到底怎么了?谢谢你的回复。使用默认的django应用程序会产生相同的结果。我不知道为什么使用自定义Django应用程序的全部细节,但我想主要原因是,它只会处理“POST”请求,否则会显示自定义页面。好的,请发布服务代码,因为您的DjangoApplication子类与此无关,并且应用程序实例化看起来很好。如果是bug,我将修复它,如果不是,我将告诉您如何修复它,但首先我必须复制它。已更新。不确定这些是否是您需要的代码。