无法使用Fiddler将JSON发布数据传递到WCF REST服务

问题描述

我正在尝试调用WCF休息服务，如下所示:

I'm trying to invoke a WCF rest service as shown below:

[WebInvoke(UriTemplate = "Login", RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json)]
public string Process(string AuthenticationInfo)
{

我正在尝试使用以下提琴手2中的以下内容调用它:

I'm trying to invoke it using the following below in Fiddler 2:

User-Agent: Fiddler
Host: localhost
content-type: application/json;charset=utf-8
content-length: 0
data: {"AuthenticationInfo": "data"}

我在方法中有一个断点，它确实碰到了断点，但是AuthenticationInfo的值始终为null，而不是"data".

I have a breakpoint in the method, and it does hit the breakpoint, but the value for AuthenticationInfo is always null, and not "data".

我在做什么错了?

谢谢.

推荐答案

[WebInvoke]属性的默认正文样式"为裸"，这意味着输入(对于您的情况为"data")必须为发送原样".您要发送的是输入的包装的版本(即包装在键为参数名称的对象中.

The default "body style" of the [WebInvoke] attribute is "Bare", which means that the input (in your case, "data") must be sent "as is". What you're sending is a wrapped version of the input (i.e., wrapped in an object whose key is the parameter name.

可以通过两种方法进行此工作:更改WebInvoke声明以包含BodyStyle参数:

There are two ways you can make this work: either change the WebInvoke declaration to include the BodyStyle parameter:

[WebInvoke(
    UriTemplate = "Login",
    RequestFormat = WebMessageFormat.Json,
    ResponseFormat = WebMessageFormat.Json,
    BodyStyle = WebMessageBodyStyle.WrappedRequest)]
public string Process(string AuthenticationInfo)

或者您可以更改请求以发送参数"bare":

Or you can change the request to send the parameter "bare":

POST .../Login HTTP/1.1
User-Agent: Fiddler
Host: localhost
Content-Type: application/json;charset=utf-8
Content-Length: 6

"data"

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