5

我正在使用启用 ajax 的 WCF，当我在 Web 浏览器中打开 url 时出现此错误。

由于 EndpointDispatcher 的 ContractFilter 不匹配，接收方无法处理带有 Action ' http://localhost:22219/MobileService.svc/GetProductCategories ' 的消息。这可能是因为合约不匹配（发送方和接收方之间的操作不匹配）或发送方和接收方之间的绑定/安全不匹配。检查发送方和接收方是否具有相同的合同和相同的绑定（包括安全要求，例如消息、传输、无）。

移动服务代码如下

namespace MobileService
{
    [ServiceContract(Namespace = "")]
    [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
    public class MobileService
    {
        // To use HTTP GET, add [WebGet] attribute. (Default ResponseFormat is WebMessageFormat.Json)
        // To create an operation that returns XML,
        //     add [WebGet(ResponseFormat=WebMessageFormat.Xml)],
        //     and include the following line in the operation body:
        //         WebOperationContext.Current.OutgoingResponse.ContentType = "text/xml";
        [OperationContract]
        public void DoWork()
        {
            // Add your operation implementation here
            return;
        }
        [OperationContract]
        [WebInvoke(Method = "POST", RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.Wrapped, UriTemplate = "GetProductCategories")]
        public List<String> GetProductCategories()
        {
            List<String> categoryList = new List<string>();

            categoryList.AddRange(new String[] { "Electronics", "Housewares", "Computers", "Software", "Music" });

            return categoryList;
        }
        // Add more operations here and mark them with [OperationContract]
    }
}

和服务 web.config 文件是

<?xml version="1.0"?>
<configuration>

  <system.web>
    <compilation debug="true" targetFramework="4.0" />
  </system.web>
  <system.serviceModel>

    <behaviors>
      <endpointBehaviors>
        <behavior name="MobileService.MobileServiceAspNetAjaxBehavior">

        </behavior>
      </endpointBehaviors>
    </behaviors>
    <serviceHostingEnvironment aspNetCompatibilityEnabled="true"
      multipleSiteBindingsEnabled="true" />
    <services>
      <service name="MobileService.MobileService">
        <endpoint address="" behaviorConfiguration="MobileService.MobileServiceAspNetAjaxBehavior"
          binding="webHttpBinding" contract="MobileService.MobileService"  />
      </service>
    </services>
  </system.serviceModel>
 <system.webServer>
    <modules runAllManagedModulesForAllRequests="true"/>
  </system.webServer>

</configuration>

任何人都可以在我犯错的地方帮助我。

4

1 回答 1

14

您需要端点的<webHttp/>端点行为。如果您添加它（见下文），它应该可以工作。

  <endpointBehaviors>
    <behavior name="MobileService.MobileServiceAspNetAjaxBehavior">
      <webHttp/>
    </behavior>
  </endpointBehaviors>
于 2013-01-19T15:25:41.970 回答