WCF:没有端点侦听，可以接受消息 [英] WCF: There was no endpoint listening at, that could accept the message
问题描述
我有 WCF 服务 (JSON) 和 ASP.NET 网站，我们向连接到 wcf 服务的站点添加了服务引用.
I have WCF Service (JSON), and ASP.NET website that we add a service reference to that site connected to the wcf service.
当我使用 POSTMAN 和 SOAPUI 测试服务时以及当我尝试以下代码时:
when i test the service using POSTMAN and SOAPUI and also when i try the following code:
WebClient client = new WebClient();
client.Headers["Content-type"] = "application/json";
client.Encoding = System.Text.Encoding.UTF8;
string result = client.UploadString("http://localhost:1122/Service.svc/GetInfo", string.Empty);
它工作正常(请注意，我所有的服务功能都是 POST).
It works fine (note that all my service functions are POST).
但是当我将服务添加到服务引用并连接到服务并尝试调用函数 GetInfo() 时，会出现以下问题.
But when i add the service to service reference an connect to the service and try to call the function GetInfo(), the following issue appears.
异常信息
There was no endpoint listening at http://localhost:1122/Service.svc that could
accept the message. This is often caused by an incorrect address or SOAP action.
See InnerException, if present, for more details.
内部异常信息
The remote server returned an error: (404) Not Found.
服务器堆栈跟踪:
at System.ServiceModel.Channels.HttpChannelUtilities.ProcessGetResponseWebException(WebException webException, HttpWebRequest request, HttpAbortReason abortReason)
at System.ServiceModel.Channels.HttpChannelFactory`1.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout)
at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout)
at System.ServiceModel.Dispatcher.RequestChannelBinder.Request(Message message, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
我认为这个问题是由于 webservice 和网站的配置文件配置不正确，所以你可以在下面找到这两个配置文件:
I think this issue is due to incorrect configuration on the config file for the webservice and website, so you can find below both config files:
Web 服务配置文件:
<system.serviceModel>
<services>
<service name="WCFService.Service" behaviorConfiguration="ServiceBehavior">
<endpoint address="" binding="webHttpBinding" contract="WCFService.IService" name="WebHttp_IService"
bindingConfiguration="WebHttpBinding_IService" behaviorConfiguration="ServiceBehaviorEndpoint" />
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
</service>
</services>
<bindings>
<webHttpBinding>
<binding name="WebHttpBinding_IService" maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647"
maxBufferSize="2147483647" openTimeout="00:20:00" receiveTimeout="00:20:00" closeTimeout="00:20:00" sendTimeout="00:20:00">
<readerQuotas maxDepth="200" maxStringContentLength="8388608" maxArrayLength="16384" maxBytesPerRead="2147483647" maxNameTableCharCount="16384" />
</binding>
</webHttpBinding>
</bindings>
<behaviors>
<serviceBehaviors>
<behavior name="ServiceBehavior">
<serviceMetadata httpGetEnabled="true" httpsGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="true"/>
</behavior>
</serviceBehaviors>
<endpointBehaviors>
<behavior name="ServiceBehaviorEndpoint">
<webHttp helpEnabled="true" />
</behavior>
</endpointBehaviors>
</behaviors>
<protocolMapping>
<add binding="basicHttpsBinding" scheme="https" />
</protocolMapping>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />
</system.serviceModel>
网站配置文件:
<system.serviceModel>
<bindings>
<basicHttpBinding>
<binding name="BasicHttpBinding_IService"/>
</basicHttpBinding>
<webHttpBinding>
<binding maxBufferSize="2147483647" maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647">
<readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647"
maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647"/>
</binding>
</webHttpBinding>
</bindings>
<client>
<endpoint address="http://localhost:1122/Service.svc" bindingConfiguration="BasicHttpBinding_IService"
contract="WCFServices.IService" name="BasicHttpBinding_IService" binding="basicHttpBinding" />
</client>
</system.serviceModel>
注意网站中的Service Reference名称是WCFService，我们尝试将服务托管到公网ip的iis上，并打开防火墙，但出现同样问题.
Note that the Service Reference name in the Website is WCFService, and we try to host the service to the iis with public IP and open the firewall, but the same issue appears.
推荐答案
当我们通过客户端代理类调用使用 WebHttpBinding 创建的服务时，可能会与其他绑定存在一些差异.我们需要手动配置客户端的配置，比如将端点行为添加到服务端点，通过添加服务引用将webget/webinvoke属性添加到自动生成的操作方法中.
我做了一个demo，希望对你有用.
服务器端(控制台应用程序).
When we invoke the service which created with WebHttpBinding via client proxy class, there may be some differences from other bindings. We need to configure the client configuration manually, such as adding the endpoint behavior to service endpoint and webget/webinvoke attribute to the automatically generated operation method by adding service reference.
I have made a demo, wish it is useful to you.
Server end (console application).
class Program
{
static void Main(string[] args)
{
using (ServiceHost sh=new ServiceHost(typeof(MyService)))
{
sh.Opened += delegate
{
Console.WriteLine("Service is ready......");
};
sh.Closed += delegate
{
Console.WriteLine("Service is closed");
};
sh.Open();
Console.ReadLine();
sh.Close();
}
}
}
[ServiceContract]
public interface IService
{
[OperationContract]
[WebGet]
string SayHello();
}
public class MyService : IService
{
public string SayHello()
{
return "Hello, Busy world"; }
}
App.config
<system.serviceModel>
<services>
<service behaviorConfiguration="Service1Behavior" name="VM1.MyService">
<endpoint address="" binding="webHttpBinding" contract="VM1.IService" behaviorConfiguration="rest" >
</endpoint>
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
<host>
<baseAddresses>
<add baseAddress="http://localhost:13008"/>
</baseAddresses>
</host>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="Service1Behavior">
<serviceMetadata httpGetEnabled="true"/>
<serviceDebug includeExceptionDetailInFaults="False"/>
</behavior>
</serviceBehaviors>
<endpointBehaviors>
<behavior name="rest">
<webHttp/>
</behavior>
</endpointBehaviors>
</behaviors>
</system.serviceModel>
客户端(控制台应用)
static void Main(string[] args)
{
ServiceReference1.ServiceClient client = new ServiceReference1.ServiceClient();
try
{
Console.WriteLine(client.SayHello());
}
catch (Exception)
{
throw;
}
}
App.config
<system.serviceModel>
<behaviors>
<endpointBehaviors>
<behavior name="rest">
<webHttp />
</behavior>
</endpointBehaviors>
</behaviors>
<client>
<endpoint address="http://10.157.13.69:13008/" binding="webHttpBinding" contract="ServiceReference1.IService" behaviorConfiguration="rest">
</endpoint>
</client>
</system.serviceModel>
我们还需要为操作方法添加WebGet属性.
We also need to add the WebGet attribute to the operation method.
[System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "4.0.0.0")] [System.ServiceModel.ServiceContractAttribute(ConfigurationName="ServiceReference1.IService")]
public interface IService {
[System.ServiceModel.OperationContractAttribute(Action="http://tempuri.org/IService/SayHello", ReplyAction="http://tempuri.org/IService/SayHelloResponse")]
[WebGet]
string SayHello();
结果.
如果有什么我可以帮忙的，请随时告诉我.
Result.
Feel free to let me know if there is anything I can help with.
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