Question

Gentelmens，

我正在使用WCF服务，我希望将结果视为JSON。但我对如何做到这一点没有任何想法。我已将方法标记为

[WebGet(ResponseFormat = WebMessageFormat.Json)]

但这对我没有帮助。在“Wcf测试客户端”中，我将结果视为xml。

我试图将行为（带有Json的WebHttp）添加到端点但我有错误：

The endpoint at 'http://localhost:8732/Design_Time_Addresses/PlayingWithWCF2/Service1/' does not have a Binding
with the None MessageVersion.  'System.ServiceModel.Description.WebHttpBehavior' is only intended for use 
with WebHttpBinding or similar bindings.

DataContract：

  [DataContract]
  public class Foo
  {
    [DataMember]
    public string Name { get; set; } 
  }

接口：

  [ServiceContract]
  public interface IFooService
  {
    [OperationContract]
    List<Foo> GetList();
  }

服务：

  [ServiceBehavior(InstanceContextMode = InstanceContextMode.PerCall)]
  [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
  public class FooSerivce : IFooService
  {
    [WebGet(ResponseFormat = WebMessageFormat.Json)]
    public List<Foo> GetList()
    {
      return new List<Foo> {new Foo {Name = "Name1"}, new Foo {Name = "Name2"}};
    }
  }

的Web.config：

<system.serviceModel>
    <services>
      <service name="PlayingWithWCF2.FooSerivce">
        <endpoint address="" behaviorConfiguration="" binding="wsHttpBinding"
         contract="PlayingWithWCF2.IFooService">
          <identity>
            <dns value="localhost" />
          </identity>
        </endpoint>
        <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
        <host>
          <baseAddresses>
            <add baseAddress="http://localhost:8732/Design_Time_Addresses/PlayingWithWCF2/Service1/" />
          </baseAddresses>
        </host>
      </service>
    </services>
    <behaviors>
      <serviceBehaviors>
        <behavior name="">
          <serviceMetadata httpGetEnabled="true" />
          <serviceDebug includeExceptionDetailInFaults="false" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
  </system.serviceModel>

你能给我一些建议我如何解决这个问题吗？

P.S。对不起，如果问题很愚蠢，但我是WCF的新手

Answer 1

要返回JSON，您必须使用WCF测试客户端不支持的REST服务。您已定义服务以支持REST，但未将其配置为公开REST端点。您需要此配置：

  <system.serviceModel>
    <services>
      <service name="PlayingWithWCF2.FooSerivce">
        <endpoint address="webHttp" binding="webHttpBinding" contract="PlayingWithWCF2.IFooService" />
        <host>
          <baseAddresses>
            <add baseAddress="http://localhost:8732/PlayingWithWCF2/Service1/" />
          </baseAddresses>
        </host>
      </service>
    </services>
    <behaviors>
      <endpointBehaviors>
        <behavior name="webHttp">
          <webHttp />
        </behavior>
      </endpointBehaviors>
    </behaviors>
  </system.serviceModel>

Answer 2

我相信您的问题在于您的web.config，您的绑定配置应该设置为webHttp。在stackoverflow上查看以下question/answer

WCF和JSON的问题

2 个答案: