Unable to generate a proxy for a self-hosted service with “Add Service Reference”

问题

I created a basic calculator service called MiniCalc that only has two operations. Add and Mul, and hosted it in a Console Application.

using(ServiceHost host = new ServiceHost(typeof(MiniCalcService.Service),
                                         new Uri("http://localhost:8091/MiniCalcService")))
{
    host.AddServiceEndpoint(typeof(MiniCalcService.IService),
                            new BasicHttpBinding(),
                            "Service");
    host.Open();
    Console.Write("Press ENTER key to terminate the MiniCalcHost . . . ");
}

Then I created a console application to consume the service and created the proxy manually by creating a proxy class and then created a ChannelFactory to invoke the service.

EndpointAddress ep = new EndpointAddress("http://localhost:8091/MiniCalcService/Service");
IService proxy = ChannelFactory<IService>.CreateChannel(new BasicHttpBinding(),ep);

I was able to invoke the service contract properly and retrieve the result as expected.

Now I wanted to create the proxy using the Add Service Reference.

I get the following error when I click Go in the Add Service Reference window

There was an error downloading 'http://localhost:8091/MiniCalcService/Service'.
The request failed with HTTP status 400: Bad Request.
Metadata contains a reference that cannot be resolved: 'http://localhost:8091/MiniCalcService/Service'.
Content Type application/soap+xml; charset=utf-8 was not supported by service http://localhost:8091/MiniCalcService/Service.  The client and service bindings may be mismatched.
The remote server returned an error: (415) Cannot process the message because the content type 'application/soap+xml; charset=utf-8' was not the expected type 'text/xml; charset=utf-8'..
If the service is defined in the current solution, try building the solution and adding the service reference again.

What am I missing or doing wrong?

回答1:

Enable Metadata exchange behavior in your ServiceHost.

using(ServiceHost host = new ServiceHost(typeof(MiniCalcService.Service),
                             new Uri("http://localhost:8091/MiniCalcService")))
{
    host.AddServiceEndpoint(typeof(MiniCalcService.IService),
                            new BasicHttpBinding(),
                            "Service");

    //Enable metadata exchange
    ServiceMetadataBehavior smb = new ServiceMetadataBehavior();
    smb.HttpGetEnabled = true;
    host.Description.Behaviors.Add(smb);

    host.Open();
    Console.Write("Press ENTER key to terminate the MiniCalcHost . . . ");
}

http://wcftutorial.net/WCF-Self-Hosting.aspx

回答2:

Since you don't have a .svc I think you must have this in your service .config:

<serviceHostingEnvironment multipleSiteBindingsEnabled="true">
        <serviceActivations>
            <add relativeAddress="Service.svc" service="MiniCalcService.Service" />
        </serviceActivations>
    </serviceHostingEnvironment>

After that you need an option to allow service metadata:

<serviceMetadata httpGetEnabled="true" />

This is a bit more complicated so I advise you tu create a new WCF Service in a new Solution then you can see how this configuration looks like. So you only need to make some copy/paste configurations.

After that point to:

http://localhost:8091/MiniCalcService/Service.svc

来源：https://stackoverflow.com/questions/9852019/unable-to-generate-a-proxy-for-a-self-hosted-service-with-add-service-reference

标签

wcf

visual-studio-2010

service-reference