/// <summary> /// 动态调用WebService /// </summary> /// <param name="url">WebService地址</param> /// <param name="classname">类名</param> /// <param name="methodname">方法名(模块名)</param> /// <param name="args">参数列表</param> /// <returns>object</returns> public static object InvokeWebService(string url, string classname, string methodname, object[] args) { string @namespace = "ServiceBase.WebService.DynamicWebLoad"; if (classname == null || classname == "") { classname = WebServiceHelper.GetClassName(url); } //获取服务描述语言(WSDL) WebClient wc = new WebClient(); Stream stream = wc.OpenRead(url + "?WSDL"); ServiceDescription sd = ServiceDescription.Read(stream); ServiceDescriptionImporter sdi = new ServiceDescriptionImporter(); sdi.AddServiceDescription(sd, "", ""); CodeNamespace cn = new CodeNamespace(@namespace); //生成客户端代理类代码 CodeCompileUnit ccu = new CodeCompileUnit(); ccu.Namespaces.Add(cn); sdi.Import(cn, ccu); CSharpCodeProvider csc = new CSharpCodeProvider(); ICodeCompiler icc = csc.CreateCompiler(); //设定编译器的参数 CompilerParameters cplist = new CompilerParameters(); cplist.GenerateExecutable = false; cplist.GenerateInMemory = true; cplist.ReferencedAssemblies.Add("System.dll"); cplist.ReferencedAssemblies.Add("System.XML.dll"); cplist.ReferencedAssemblies.Add("System.Web.Services.dll"); cplist.ReferencedAssemblies.Add("System.Data.dll"); //编译代理类 CompilerResults cr = icc.CompileAssemblyFromDom(cplist, ccu); if (true == cr.Errors.HasErrors) { System.Text.StringBuilder sb = new StringBuilder(); foreach (CompilerError ce in cr.Errors) { sb.Append(ce.ToString()); sb.Append(System.Environment.NewLine); } throw new Exception(sb.ToString()); } //生成代理实例,并调用方法 Assembly assembly = cr.CompiledAssembly; Type t = assembly.GetType(@namespace + "." + classname, true, true); object obj = Activator.CreateInstance(t); MethodInfo mi = t.GetMethod(methodname); return(mi.Invoke(obj, args)); }
/// <summary> /// 根据WebService的URL,生成一个本地的dll,并返回WebService的实例 /// 创建人:程媛媛 创建时间:2010-6-21 /// </summary> /// <param name="url">WebService的UR</param> /// <returns></returns> public static object GetWebServiceInstance(string url) { string @namespace = "ServiceBase.WebService.DynamicWebLoad"; string classname = WebServiceHelper.GetClassName(url); // 1. 使用 WebClient 下载 WSDL 信息。 WebClient web = new WebClient(); Stream stream = web.OpenRead(url + "?WSDL"); // 2. 创建和格式化 WSDL 文档。 ServiceDescription description = ServiceDescription.Read(stream); // 3. 创建客户端代理代理类。 ServiceDescriptionImporter importer = new ServiceDescriptionImporter(); importer.ProtocolName = "Soap"; // 指定访问协议。 importer.Style = ServiceDescriptionImportStyle.Client; // 生成客户端代理。 importer.CodeGenerationOptions = CodeGenerationOptions.GenerateProperties | CodeGenerationOptions.GenerateNewAsync; importer.AddServiceDescription(description, null, null); // 添加 WSDL 文档。 // 4. 使用 CodeDom 编译客户端代理类。 CodeNamespace nmspace = new CodeNamespace(@namespace); // 为代理类添加命名空间,缺省为全局空间。 CodeCompileUnit unit = new CodeCompileUnit(); unit.Namespaces.Add(nmspace); ServiceDescriptionImportWarnings warning = importer.Import(nmspace, unit); CodeDomProvider provider = CodeDomProvider.CreateProvider("CSharp"); CompilerParameters parameter = new CompilerParameters(); parameter.GenerateExecutable = false; parameter.OutputAssembly = Application.StartupPath + "//DBMS_Service.dll"; // 可以指定你所需的任何文件名。 parameter.ReferencedAssemblies.Add("System.dll"); parameter.ReferencedAssemblies.Add("System.XML.dll"); parameter.ReferencedAssemblies.Add("System.Web.Services.dll"); parameter.ReferencedAssemblies.Add("System.Data.dll"); CompilerResults result = provider.CompileAssemblyFromDom(parameter, unit); if (result.Errors.HasErrors) { // 显示编译错误信息 System.Text.StringBuilder sb = new StringBuilder(); foreach (CompilerError ce in result.Errors) { sb.Append(ce.ToString()); sb.Append(System.Environment.NewLine); } throw new Exception(sb.ToString()); } //生成代理实例 System.Reflection.Assembly assembly = Assembly.Load("DBMS_Service"); Type t = assembly.GetType(@namespace + "." + classname, true, true); object obj = Activator.CreateInstance(t); return(obj); }