Web服务调用错误

Question

I have created a WCF Service Reference from a provided WSDL file. in C# i've created an instance of the proxy client with a basic binding and called the required method:

    public static bool main()
    {
        Debugger.Launch();
        var binding = new BasicHttpsBinding();

        binding.Security.Mode = BasicHttpsSecurityMode.Transport;
        binding.TextEncoding = System.Text.Encoding.UTF8;

        var remoteAddress = new System.ServiceModel.EndpointAddress("https://tester.mysite.de:8443/webservice/OrderNumber");

        using (var orderNumberClient = new orderNumberClient(new System.ServiceModel.BasicHttpBinding(BasicHttpSecurityMode.Transport), remoteAddress))
        {
            string IDSystem = "123";
            string IDOSystem = "abc";

            //set timeout
            orderNumberClient.Endpoint.Binding.SendTimeout = new TimeSpan(0, 0, 0, 10000);
            orderNumberClient.ClientCredentials.UserName.UserName = "test";
            orderNumberClient.ClientCredentials.UserName.Password = "test";

            //call web service method
            string productResponse = orderNumberClient.getNewOrderNumber(IDSystem, "01", IDOSystem); ;

            MessageBox.Show(productResponse);
        }

        return true;
    }

Unfortunately I'm receiving a fairly unhelpful error when i call the 'getNewOrderNumber' method:

System.Reflection.TargetInvocationException: Ein Aufrufziel hat einen Ausnahmefehler verursacht. ---> System.ServiceModel.FaultException: WebService processing Exception

Server stack trace:

bei System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, ProxyRpc& rpc)

bei System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)

bei System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)

...

It's not an error on the web service side as that works fine in SOAPUI, am i possibly missing something in the binding?

Hopefully someone more knowledgable on web-services can shine a light on the root cause.

Answer 1

It turns out I wasn't sending the 'Authorization' header with the call. To overcome the issue I used the OperationContextScope class to add the required HttpRequestMessageProperty to the proxy instances inner channel before making the actual web service method call:

using (OperationContextScope scope = new OperationContextScope(orderNumberClient.InnerChannel))
{
    var httpRequestProperty = new HttpRequestMessageProperty();
    httpRequestProperty.Headers[System.Net.HttpRequestHeader.Authorization] = "Basic " +
    Convert.ToBase64String(Encoding.ASCII.GetBytes(orderNumberClient.ClientCredentials.UserName.UserName + ":" +
    orderNumberClient.ClientCredentials.UserName.Password));
    OperationContext.Current.OutgoingMessageProperties[HttpRequestMessageProperty.Name] = httpRequestProperty;

    string Response = orderNumberClient.getNewOrderNumber(IDSystem, "01", IDOSystem);
}