Question

我使用Ajax调用我的wcf服务，为此我配置了web.config文件。但现在当我运行我的服务时，它会给出这样的错误。

Failed to add a service. Service metadata may not be accessible. Make sure your service is running and exposing metadata.

这是我的Interface

namespace WcfWithJson
{
    [ServiceContract]
    public interface IMyservice
    {
        [WebInvoke(Method = "POST", ResponseFormat = WebMessageFormat.Json)]
        UserDetails[] GetUserDetails(string Username);
    }
}

注意： userDetails是我的班级名称。现在我在这里实现了mY接口

namespace WcfWithJson
{
   [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
    public class MyService : IMyservice
    {
        public UserDetails[] GetUserDetails(string Username)
        {
            string strConnection = ConfigurationManager.ConnectionStrings["MyDbEntities"].ConnectionString;
            List<UserDetails> userdetails = new List<UserDetails>();
            using (SqlConnection con = new SqlConnection(strConnection))
            {
              // some sql Code here
            }
            return userdetails.ToArray();
        }
    }
}

这是我的web.config文件

    <system.serviceModel>
    <serviceHostingEnvironment aspNetCompatibilityEnabled="true" />
    <services>
      <service name="WcfWithJson.MyService" behaviorConfiguration="metadataBehavior">
        <endpoint address="" binding="basicHttpBinding" contract="WcfWithJson.IMyservice" behaviorConfiguration="EndPointBehavior" />
        <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
      </service>
    </services>
    <behaviors>
      <serviceBehaviors>
        <behavior name="ServiceBehavior">
          <serviceMetadata httpGetEnabled="true"/>
          <serviceDebug includeExceptionDetailInFaults="true"/>
        </behavior>
      </serviceBehaviors>
      <endpointBehaviors>
        <behavior name="EndPointBehavior">
          <enableWebScript />
        </behavior>
      </endpointBehaviors>
    </behaviors>
  </system.serviceModel>
  <system.webServer>
    <modules runAllManagedModulesForAllRequests="true"/>
  </system.webServer>

这是完整错误：

Error: Cannot obtain Metadata from http://localhost:61762/MyService.svc If this is a Windows (R) Communication Foundation service to which you have access, please check that you have enabled metadata publishing at the specified address. For help enabling metadata publishing, please refer to the MSDN documentation at http://go.microsoft.com/fwlink/?LinkId=65455.WS-Metadata Exchange Error URI: http://localhost:61762/MyService.svc Metadata contains a reference that cannot be resolved: 'http://localhost:61762/MyService.svc'. Content Type application/soap+xml; charset=utf-8 was not supported by service http://localhost:61762/MyService.svc. The client and service bindings may be mismatched. The remote server returned an error: (415) Unsupported Media Type.HTTP GET Error URI: http://localhost:61762/MyService.svc The HTML document does not contain Web service discovery information.

Answer 1

对于使用Ajax的WCF，服务的<endpoint />应使用WebHttpBinding和<endpointBehaviors>标记下配置的ASP.NET AJAX行为。

因此，条目应为：

<services>
 <service name="WcfWithJson.MyService" behaviorConfiguration="ServiceBehavior">
  <endpoint address="" binding="webHttpBinding" 
    contract="WcfWithJson.IMyservice" behaviorConfiguration="EndPointBehavior" />
  <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
 </service>
</services>

[行为配置＆＃39; <service>标签的属性应设置为为服务配置的相应行为。在这里您已配置了该行为对于名称为&& 34的服务; ServiceBehaviour＆＃34; ]

check here the article正确使用各种内置WCF绑定。

在WCF中可能无法访问服务元数据

1 个答案: