在遠程調用WebService時出現下面的情況：
這種情況一般是由於證書有問題時出現，如果在瀏覽器中打開是這種情況：
解決方法新建一個類，代碼如下：
1 public static class CertificateTrust 2 { 3 4 public static void SetCertificatePolicy() 5 { 6 ServicePointManager.ServerCertificateValidationCallback 7 += RemoteCertificateValidate; 8 } 9 private static bool RemoteCertificateValidate( 10 object sender, X509Certificate cert, 11 X509Chain chain, SslPolicyErrors error) 12 { 13 14 System.Console.WriteLine("Warning, trust any certificate"); 15 return true; 16 } 17 }
在動態編譯WebService的代碼中調用上面的類就可以了，注意調用的位置，一定要在打開前調用，下面代碼的紅色部分
動態編譯WebSerivce的代碼如下：
1 public class WSHelper 2 { 3 /// < summary> 4 /// 動態調用web服務 5 /// < /summary> 6 /// < param name="url">WSDL服務地址< /param> 7 /// < param name="methodname">方法名< /param> 8 /// < param name="args">參數< /param> 9 /// < returns>< /returns> 10 public static object InvokeWebService(string url, string methodname, object[] args) 11 { 12 return WSHelper.InvokeWebService(url, null, methodname, args); 13 } 14 /// < summary> 15 /// 動態調用web服務 16 /// < /summary> 17 /// < param name="url">WSDL服務地址< /param> 18 /// < param name="classname">類名< /param> 19 /// < param name="methodname">方法名< /param> 20 /// < param name="args">參數< /param> 21 /// < returns>< /returns> 22 public static object InvokeWebService(string url, string classname, string methodname, object[] args) 23 { 24 string @namespace = "EnterpriseServerBase.WebService.DynamicWebCalling"; 25 if ((classname == null) || (classname == "")) 26 { 27 classname = WSHelper.GetWsClassName(url); 28 } 29 try 30 { //獲取WSDL 31 WebClient wc = new WebClient(); 32 33 CertificateTrust.SetCertificatePolicy();//證書出現問題時調用此代碼 34 35 Stream stream = wc.OpenRead(url + "?WSDL"); 36 ServiceDescription sd = ServiceDescription.Read(stream); 37 ServiceDescriptionImporter sdi = new ServiceDescriptionImporter(); 38 sdi.AddServiceDescription(sd, "", ""); 39 CodeNamespace cn = new CodeNamespace(@namespace); 40 //生成客戶端代理類代碼 41 CodeCompileUnit ccu = new CodeCompileUnit(); 42 ccu.Namespaces.Add(cn); 43 sdi.Import(cn, ccu); 44 CSharpCodeProvider icc = new CSharpCodeProvider(); 45 //設定編譯參數添加所需要的DLL文件 46 CompilerParameters cplist = new CompilerParameters(); 47 cplist.GenerateExecutable = false; 48 cplist.GenerateInMemory = true; 49 cplist.ReferencedAssemblies.Add("System.dll"); 50 cplist.ReferencedAssemblies.Add("System.XML.dll"); 51 cplist.ReferencedAssemblies.Add("System.Web.Services.dll"); 52 cplist.ReferencedAssemblies.Add("System.Data.dll"); 53 //編譯代理類 54 CompilerResults cr = icc.CompileAssemblyFromDom(cplist, ccu); 55 if (true == cr.Errors.HasErrors) 56 { 57 System.Text.StringBuilder sb = new System.Text.StringBuilder(); 58 foreach (System.CodeDom.Compiler.CompilerError ce in cr.Errors) 59 { 60 sb.Append(ce.ToString()); 61 sb.Append(System.Environment.NewLine); 62 } 63 throw new Exception(sb.ToString()); 64 } 65 //生成代理實例，並調用方法 66 System.Reflection.Assembly assembly = cr.CompiledAssembly; 67 Type t = assembly.GetType(@namespace + "." + classname, true, true); 68 object obj = Activator.CreateInstance(t); 69 System.Reflection.MethodInfo mi = t.GetMethod(methodname); 70 return mi.Invoke(obj, args); 71 } 72 catch (Exception ex) 73 { 74 throw new Exception(ex.InnerException.Message, new Exception(ex.InnerException.StackTrace)); 75 } 76 } 77 private static string GetWsClassName(string wsUrl) 78 { 79 string[] parts = wsUrl.Split('/'); 80 string[] pps = parts[parts.Length - 1].Split('.'); 81 return pps[0]; 82 } 83 }
調用動態編譯的代碼如下：
1 string url = "http://localhost:81/WebServiceLogin.asmx"; 2 string[] args = new string[2]; 3 args[0] = "參數1"; 4 args[1] = "參數2"; 5 object result = WSHelper.InvokeWebService(url, "HelloWorld", args);