WCF REST：我希望我的XML在请求中看起来像什么？

Question

I have the following method in my WCF service:

[OperationContract]
[WebInvoke(Method = "POST", BodyStyle = WebMessageBodyStyle.Bare, ResponseFormat = WebMessageFormat.Xml, RequestFormat = WebMessageFormat.Xml)]
public int GetOne(string param1, string param2)
{
    return 1;
}

I am sending xml from a Flex application, and it takes an object that looks like this: { param1: "test", param2: "test2" } and turns it into the following request:

POST http://localhost:8012/MyService.svc/GetOne HTTP/1.1
Accept: application/xml
Accept-Language: en-US
x-flash-version: 10,1,53,64
Content-Type: application/xml
Content-Length: 52
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Host: localhost:8012
Connection: Keep-Alive
Pragma: no-cache
Cookie: ASP.NET_SessionId=drsynacw0ignepk4ya4pou23

<param1>something</param1><param2>something</param2>

I get the error The incoming message has an unexpected message format 'Raw'. The expected message formats for the operation are 'Xml', 'Json'. The incoming message has an unexpected message format 'Raw'. The expected message formats for the operation are 'Xml', 'Json'. . Everything I've read indicates that I just need the content-type to be application/xml , but it still thinks it's Raw for some reason. Given my method signature, I'm confused as to what it's expecting and how I need to form the request so it will accept it as XML.

Am I missing something obvious here? Why does it think it's RAW when it's specifying XML and providing XML?

Edit - Here's the Flex side in case I'm missing something here.

var getOneService:HttpService = new HttpService("myURL");

getOneService.method = "POST";
getOneService.resultFormat = "e4x";
getOneService.contentType = HTTPService.CONTENT_TYPE_XML;
getOneService.headers = { Accept: "application/xml" };

getOneService.send({ param1: "test", param2: "test2" });

Answer 1

I don't think you can pass 2 parameters with a POST operation for the framework to deserialize it automatically. You have try some of the below approaches:

1. Define your WCF method to be as below:

    [OperationContract] [WebInvoke(Method = "POST", BodyStyle = WebMessageBodyStyle.Bare, ResponseFormat = WebMessageFormat.Xml, RequestFormat = WebMessageFormat.Xml, URITemplate="/GetOne/{param1}")] public int GetOne(string param1, string param2) { return 1; } 

   Your raw POST request would looks like as below:

    POST http://localhost/SampleService/RestService/ValidateUser/myparam1 HTTP/1.1 User-Agent: Fiddler Content-Type: application/xml Host: localhost Content-Length: 86 <string xmlns="http://schemas.microsoft.com/2003/10/Serialization/">my param2</string> 

2. Change your WCF REST method to be as below:

    [OperationContract] [WebInvoke(Method = "POST", BodyStyle = WebMessageBodyStyle.WrappedRequest, ResponseFormat = WebMessageFormat.Json, RequestFormat = WebMessageFormat.Json)] public int GetOne(string param1, string param2) { return 1; } 

   Now your raw request should looks something like below:

    POST http://localhost/SampleService/RestService/ValidateUser HTTP/1.1 User-Agent: Fiddler Content-Type: application/json Host: localhost Content-Length: 86 {"param1":"my param1","param2":"my param 2"} 

3. Change your WCF REST method to be as below:

    [OperationContract] [WebInvoke(Method="POST", BodyStyle=WebMessageBodyStyle.WrappedRequest, ResponseFormat=WebMessageFormat.Xml, RequestFormat= WebMessageFormat.Xml)] public int GetOne(string param1, string param2) { return 1; } 

   Now your raw request would look like something below:

    POST http://localhost/SampleService/RestService/ValidateUser HTTP/1.1 User-Agent: Fiddler Content-Type: application/xml Host: localhost Content-Length: 116 <ValidateUser xmlns="http://tempuri.org/"><Username>my param1</Username><Password>myparam2</Password></ValidateUser> 

Answer 2

Valid XML must have a single root element. Also there's no magic in WCF REST that maps XML elements to string parameters. You could take an XElement as your operation parameter.

[OperationContract]
[WebInvoke(Method = "POST", BodyStyle = WebMessageBodyStyle.Bare, ResponseFormat = WebMessageFormat.Xml, RequestFormat = WebMessageFormat.Xml)]
public int GetOne(XElement content)
{
    string param1 = content.Elements().First(element => element.Name == "param1").Value;
    string param2 = content.Elements().First(element => element.Name == "param2").Value;

    return 1;
}

The data you send would be something like:

<parameters>
    <param1>something</param1>
    <param2>something</param2>
</parameters>