JSON 的 WCF REST POST：参数为空
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WCF REST POST of JSON: Parameter is empty
提问by Ian Vink
Using Fiddler I post a JSON message to my WCF service. The service uses System.ServiceModel.Activation.WebServiceHostFactory
我使用 Fiddler 将 JSON 消息发布到我的 WCF 服务。该服务使用 System.ServiceModel.Activation.WebServiceHostFactory
[OperationContract]
[WebInvoke
(UriTemplate = "/authenticate",
Method = "POST",
ResponseFormat = WebMessageFormat.Json,
BodyStyle = WebMessageBodyStyle.WrappedRequest
)]
String Authorise(String usernamePasswordJson);
When the POST is made, I am able to break into the code, but the parameter usernamePasswordJsonis null. Why is this?
进行 POST 后，我可以破解代码，但参数usernamePasswordJson为null。为什么是这样？
Note: Strangly when I set the BodyStyleto Bare, the post doesn't even get to the code for me to debug.
注意：奇怪的是，当我将BodyStyle设置为Bare 时，该帖子甚至没有提供给我调试的代码。
Here's the Fiddler Screen:
这是 Fiddler 屏幕：
回答by carlosfigueira
You declared your parameter as type String, so it is expecting a JSON string - and you're passing a JSON object to it.
您将参数声明为 String 类型，因此它需要一个 JSON 字符串 - 并且您将一个 JSON 对象传递给它。
To receive that request, you need to have a contract similar to the one below:
要接收该请求，您需要签订与以下类似的合同：
[ServiceContract]
public interface IMyInterface
{
[OperationContract]
[WebInvoke(UriTemplate = "/authenticate",
Method = "POST",
ResponseFormat = WebMessageFormat.Json,
BodyStyle = WebMessageBodyStyle.Bare)]
String Authorise(UserNamePassword usernamePassword);
}
[DataContract]
public class UserNamePassword
{
[DataMember]
public string UserName { get; set; }
[DataMember]
public string Password { get; set; }
}
