WCF服务.使用“接受HTTP标头"将响应类型设置为XML/JSON?

问题描述

我希望我的WCF服务接受并响应JSON或XML的请求.我认为WCF应该根据客户端指定的Accept标头自动解释响应类型.但是，在我的客户请求中，我将accept标头指定为application/json，但是我收到了XML响应.

I want my WCF service to accept and respond to requests in JSON or XML.I thought that WCF was supposed to automatically interpret the response type based on the Accept header that the client specifies.However in my client request I specify the accept header to be application/json but I receive an XML response.

这是我的服务定义:

[OperationContract]
[WebInvoke(Method = "POST", UriTemplate = "/GetChecks", BodyStyle = WebMessageBodyStyle.Bare)]
Check[] GetChecks(MyCustomObj Object);

我在这里提出请求:

using (WebClient client = new WebClient())
{
    client.Headers["Content-type"] = "application/json";
    client.Headers["Accept"] = "application/json";

    string response = client.UploadString(endpoint, JSONRequestString);
    // Response is XML
}

我知道我可以创建两个端点，并将一个端点指定为XML，将另一个端点指定为JSON，但是id却不这样做.

I know I can make two endpoints and specify one as XML and the other as JSON but id rather not do this.

有什么想法吗?

推荐答案

为此，您需要在服务器上将属性automaticFormatSelectionEnabled设置为true

For that you have on server set a property automaticFormatSelectionEnabled to true

您可以在config中完成

You can do it either in config

<webHttpEndpoint>
    <standardEndpoint name="" helpEnabled="true"
                                automaticFormatSelectionEnabled="true"/>
</webHttpEndpoint>

或在代码中

var host = new ServiceHost(typeof (PricingService));
var beh = new WebHttpBehavior { AutomaticFormatSelectionEnabled = true };
host.AddServiceEndpoint(typeof (IPricingService), new WebHttpBinding(), uri)
            .Behaviors.Add(beh);

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