C#调用webservice接口的最新方法教程

另外一种方式是使用动态编译：

Uri uri = new Uri(txt_url.Text);
  WebRequest webRequest = WebRequest.Create(uri);
  webRequest.Credentials = new NetworkCredential("hjq", "123");
  System.IO.Stream requestStream = webRequest.GetResponse().GetResponseStream();
  // Get a WSDL file describing a service
  ServiceDescription sd = ServiceDescription.Read(requestStream);
  string sdName = sd.Services[0].Name;
  // Add in tree view


  // Initialize a service description servImport
  ServiceDescriptionImporter servImport = new ServiceDescriptionImporter();
  servImport.AddServiceDescription(sd, String.Empty, String.Empty);
  servImport.ProtocolName = "Soap";

  servImport.CodeGenerationOptions = CodeGenerationOptions.GenerateProperties;


  CodeNamespace nameSpace = new CodeNamespace();
  CodeCompileUnit codeCompileUnit = new CodeCompileUnit();
  codeCompileUnit.Namespaces.Add(nameSpace);
  // Set Warnings
  ServiceDescriptionImportWarnings warnings = servImport.Import(nameSpace, codeCompileUnit);

  if (warnings == 0)
  {
   StringWriter stringWriter = new StringWriter(System.Globalization.CultureInfo.CurrentCulture);
   Microsoft.CSharp.CSharpCodeProvider prov = new Microsoft.CSharp.CSharpCodeProvider();
   prov.GenerateCodeFromNamespace(nameSpace, stringWriter, new CodeGeneratorOptions());



   // Compile the assembly with the appropriate references
   //string[] assemblyReferences = new string[2] { "System.Web.Services.dll", "System.Xml.dll" };
   string[] assemblyReferences = new string[3] {"System.dll", "System.dll", "System.dll" };
   CompilerParameters param = new CompilerParameters(assemblyReferences);
   param.GenerateExecutable = false;
   param.GenerateInMemory = true;
   param.TreatWarningsAsErrors = false;
   param.WarningLevel = 4;

   CompilerResults results = new CompilerResults(new TempFileCollection());
   results = prov.CompileAssemblyFromDom(param, codeCompileUnit);
   Assembly assembly = results.CompiledAssembly;
   Type service = assembly.GetType(sdName);

   MethodInfo[] methodInfo = service.GetMethods();
   foreach (MethodInfo t in methodInfo)
   {
   if (t.Name == "Discover")
    break;

   if (t.Name == cbMethods.Text)
   {
    //MessageBox.Show(t.ToString());
    //Invoke Method
    
    Object obj = Activator.CreateInstance(service);
    Object response = t.Invoke(obj, new object[] { "1","2","3"});
    MessageBox.Show("Result = " + response.ToString());
    break;
   }
   }
  }

  }
  catch (Exception ex)
  {
  MessageBox.Show(ex.Message);
  }