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最近做一个项目，由于是在别人框架里开发app,导致了很多限制，其中一个就是不能直接引用webservice 。 我们都知道，调用webserivice 最简单的方法就是在 "引用"  那里点击右键，然后选择"引用web服务"，再输入服务地址。 确定后，会生成一个app.config 里面就会自动生成了一些配置信息。 现在正在做的这个项目就不能这么干。后来经过一番搜索，就找出另外几种动态调用webservice 的方法。 废话少说，下面是webservice 代码 。

复制代码代码如下

View Code  using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Services; namespace TestWebService {     /// <summary>     /// Service1 的摘要说明     /// </summary>     [WebService(Namespace = "http://tempuri.org/",Description="我的Web服务")]     [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]     [System.ComponentModel.ToolboxItem(false)]     // 若要允许使用 ASP.NET AJAX 从脚本中调用此 Web 服务，请取消对下行的注释。     // [System.Web.Script.Services.ScriptService]     public class TestWebService : System.Web.Services.WebService     {         [WebMethod]         public string HelloWorld()         {             return "测试Hello World";         }         [WebMethod]         public string Test()         {             return "测试Test";         }         [WebMethod(CacheDuration = 60,Description = "测试")]         public List<String> GetPersons()         {             List<String> list = new List<string>();             list.Add("测试一");             list.Add("测试二");             list.Add("测试三");             return list;         }       } } 。

动态调用示例： 方法一： 看到很多动态调用WebService都只是动态调用地址而已，下面发一个不光是根据地址调用，方法名也可以自己指定的,主要原理是根据指定的WebService地址的WSDL,然后解析模拟生成一个代理类,通过反射调用里面的方法 。

复制代码代码如下

View Code  using System; using System.IO; using System.Collections.Generic; using System.Linq; using System.Collections; using System.Web; using System.Net; using System.Reflection; using System.CodeDom; using System.CodeDom.Compiler; using System.Web.Services; using System.Text; using System.Web.Services.Description; using System.Web.Services.Protocols; using System.Xml.Serialization; using System.Windows.Forms; namespace ConsoleApplication1 {     class Program     {         static void Main(string[] args)         {             WebClient client = new WebClient();             String url = "http://localhost:3182/Service1.asmx?WSDL";//这个地址可以写在Config文件里面，这里取出来就行了.在原地址后面加上： ?WSDL             Stream stream = client.OpenRead(url);             ServiceDescription description = ServiceDescription.Read(stream);             ServiceDescriptionImporter importer = new ServiceDescriptionImporter();//创建客户端代理代理类。             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。             CodeNamespace nmspace = new CodeNamespace(); //命名空间             nmspace.Name = "TestWebService";             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 = "MyTest.dll";//输出程序集的名称             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             }             Assembly asm = Assembly.LoadFrom("MyTest.dll");//加载前面生成的程序集             Type t = asm.GetType("TestWebService.TestWebService");             object o = Activator.CreateInstance(t);             MethodInfo method = t.GetMethod("GetPersons");//GetPersons是服务端的方法名称,你想调用服务端的什么方法都可以在这里改,最好封装一下             String[] item = (String[])method.Invoke(o, null);             //注：method.Invoke(o, null)返回的是一个Object,如果你服务端返回的是DataSet,这里也是用(DataSet)method.Invoke(o, null)转一下就行了,method.Invoke(0,null)这里的null可以传调用方法需要的参数,string[]形式的             foreach (string str in item)                 Console.WriteLine(str);             //上面是根据WebService地址，模似生成一个代理类,如果你想看看生成的代码文件是什么样子，可以用以下代码保存下来，默认是保存在bin目录下面             TextWriter writer = File.CreateText("MyTest.cs");              provider.GenerateCodeFromCompileUnit(unit, writer, null);             writer.Flush();             writer.Close();         }      } } 。

方法二：利用 wsdl.exe生成webservice代理类: 根据提供的wsdl生成webservice代理类，然后在代码里引用这个类文件。 步骤： 1、在开始菜单找到  Microsoft Visual Studio 2010 下面的Visual Studio Tools ， 点击Visual Studio 命令提示(2010)，打开命令行。 2、 在命令行中输入：  wsdl /language:c# /n:TestDemo /out:d:/Temp/TestService.cs http://jm1.services.gmcc.net/ad/Services/AD.asmx?wsdl 这句命令行的意思是：对最后面的服务地址进行编译，在D盘temp 目录下生成testservice文件。 3、 把上面命令编译后的cs文件，复制到我们项目中，在项目代码中可以直接new 一个出来后，可以进行调用。 贴出由命令行编译出来的代码:

复制代码代码如下

View Code  //------------------------------------------------------------------------------ // <auto-generated> //     此代码由工具生成。 //     运行时版本:4.0.30319.225 // //     对此文件的更改可能会导致不正确的行为，并且如果 //     重新生成代码，这些更改将会丢失。 // </auto-generated> //------------------------------------------------------------------------------ //  // 此源代码由 wsdl 自动生成, Version=4.0.30319.1。 //  namespace Bingosoft.Module.SurveyQuestionnaire.DAL {     using System;     using System.Diagnostics;     using System.Xml.Serialization;     using System.ComponentModel;     using System.Web.Services.Protocols;     using System.Web.Services;     using System.Data;          /// <remarks/>     [System.CodeDom.Compiler.GeneratedCodeAttribute("wsdl", "4.0.30319.1")]     [System.Diagnostics.DebuggerStepThroughAttribute()]     [System.ComponentModel.DesignerCategoryAttribute("code")]     [System.Web.Services.WebServiceBindingAttribute(Name="WebserviceForILookSoap", Namespace="http://tempuri.org/")]     public partial class WebserviceForILook : System.Web.Services.Protocols.SoapHttpClientProtocol {         private System.Threading.SendOrPostCallback GetRecordNumOperationCompleted;         private System.Threading.SendOrPostCallback GetVoteListOperationCompleted;         private System.Threading.SendOrPostCallback VoteOperationCompleted;         private System.Threading.SendOrPostCallback GiveUpOperationCompleted;         private System.Threading.SendOrPostCallback GetQuestionTaskListOperationCompleted;         /// <remarks/>         public WebserviceForILook() {             this.Url = "http://st1.services.gmcc.net/qnaire/Services/WebserviceForILook.asmx";         }         /// <remarks/>         public event GetRecordNumCompletedEventHandler GetRecordNumCompleted;         /// <remarks/>         public event GetVoteListCompletedEventHandler GetVoteListCompleted;         /// <remarks/>         public event VoteCompletedEventHandler VoteCompleted;         /// <remarks/>         public event GiveUpCompletedEventHandler GiveUpCompleted;         /// <remarks/>         public event GetQuestionTaskListCompletedEventHandler GetQuestionTaskListCompleted;         /// <remarks/>         [System.Web.Services.Protocols.SoapDocumentMethodAttribute("http://tempuri.org/GetRecordNum", RequestNamespace="http://tempuri.org/", ResponseNamespace="http://tempuri.org/", Use=System.Web.Services.Description.SoapBindingUse.Literal, ParameterStyle=System.Web.Services.Protocols.SoapParameterStyle.Wrapped)]         public int[] GetRecordNum(string appcode, string userID) {             object[] results = this.Invoke("GetRecordNum", new object[] {                         appcode,                         userID});             return ((int[])(results[0]));         }         /// <remarks/>         public System.IAsyncResult BeginGetRecordNum(string appcode, string userID, System.AsyncCallback callback, object asyncState) {             return this.BeginInvoke("GetRecordNum", new object[] {                         appcode,                         userID}, callback, asyncState);         }         /// <remarks/>         public int[] EndGetRecordNum(System.IAsyncResult asyncResult) {             object[] results = this.EndInvoke(asyncResult);             return ((int[])(results[0]));         }         /// <remarks/>         public void GetRecordNumAsync(string appcode, string userID) {             this.GetRecordNumAsync(appcode, userID, null);         }         /// <remarks/>         public void GetRecordNumAsync(string appcode, string userID, object userState) {             if ((this.GetRecordNumOperationCompleted == null)) {                 this.GetRecordNumOperationCompleted = new System.Threading.SendOrPostCallback(this.OnGetRecordNumOperationCompleted);             }             this.InvokeAsync("GetRecordNum", new object[] {                         appcode,                         userID}, this.GetRecordNumOperationCompleted, userState);         }         private void OnGetRecordNumOperationCompleted(object arg) {             if ((this.GetRecordNumCompleted != null)) {                 System.Web.Services.Protocols.InvokeCompletedEventArgs invokeArgs = ((System.Web.Services.Protocols.InvokeCompletedEventArgs)(arg));                 this.GetRecordNumCompleted(this, new GetRecordNumCompletedEventArgs(invokeArgs.Results, invokeArgs.Error, invokeArgs.Cancelled, invokeArgs.UserState));             }         }         /// <remarks/>         [System.Web.Services.Protocols.SoapDocumentMethodAttribute("http://tempuri.org/GetVoteList", RequestNamespace="http://tempuri.org/", ResponseNamespace="http://tempuri.org/", Use=System.Web.Services.Description.SoapBindingUse.Literal, ParameterStyle=System.Web.Services.Protocols.SoapParameterStyle.Wrapped)]         public System.Data.DataSet GetVoteList(string appcode, string userID) {             object[] results = this.Invoke("GetVoteList", new object[] {                         appcode,                         userID});             return ((System.Data.DataSet)(results[0]));         }         /// <remarks/>         public System.IAsyncResult BeginGetVoteList(string appcode, string userID, System.AsyncCallback callback, object asyncState) {             return this.BeginInvoke("GetVoteList", new object[] {                         appcode,                         userID}, callback, asyncState);         }         /// <remarks/>         public System.Data.DataSet EndGetVoteList(System.IAsyncResult asyncResult) {             object[] results = this.EndInvoke(asyncResult);             return ((System.Data.DataSet)(results[0]));         }         /// <remarks/>         public void GetVoteListAsync(string appcode, string userID) {             this.GetVoteListAsync(appcode, userID, null);         }         /// <remarks/>         public void GetVoteListAsync(string appcode, string userID, object userState) {             if ((this.GetVoteListOperationCompleted == null)) {                 this.GetVoteListOperationCompleted = new System.Threading.SendOrPostCallback(this.OnGetVoteListOperationCompleted);             }             this.InvokeAsync("GetVoteList", new object[] {                         appcode,                         userID}, this.GetVoteListOperationCompleted, userState);         }         private void OnGetVoteListOperationCompleted(object arg) {             if ((this.GetVoteListCompleted != null)) {                 System.Web.Services.Protocols.InvokeCompletedEventArgs invokeArgs = ((System.Web.Services.Protocols.InvokeCompletedEventArgs)(arg));                 this.GetVoteListCompleted(this, new GetVoteListCompletedEventArgs(invokeArgs.Results, invokeArgs.Error, invokeArgs.Cancelled, invokeArgs.UserState));             }         }         /// <remarks/>         [System.Web.Services.Protocols.SoapDocumentMethodAttribute("http://tempuri.org/Vote", RequestNamespace="http://tempuri.org/", ResponseNamespace="http://tempuri.org/", Use=System.Web.Services.Description.SoapBindingUse.Literal, ParameterStyle=System.Web.Services.Protocols.SoapParameterStyle.Wrapped)]         public bool Vote(string appcode, string userID, string qTaskID, string answer) {             object[] results = this.Invoke("Vote", new object[] {                         appcode,                         userID,                         qTaskID,                         answer});             return ((bool)(results[0]));         }         /// <remarks/>         public System.IAsyncResult BeginVote(string appcode, string userID, string qTaskID, string answer, System.AsyncCallback callback, object asyncState) {             return this.BeginInvoke("Vote", new object[] {                         appcode,                         userID,                         qTaskID,                         answer}, callback, asyncState);         }         /// <remarks/>         public bool EndVote(System.IAsyncResult asyncResult) {             object[] results = this.EndInvoke(asyncResult);             return ((bool)(results[0]));         }         /// <remarks/>         public void VoteAsync(string appcode, string userID, string qTaskID, string answer) {             this.VoteAsync(appcode, userID, qTaskID, answer, null);         }         /// <remarks/>         public void VoteAsync(string appcode, string userID, string qTaskID, string answer, object userState) {             if ((this.VoteOperationCompleted == null)) {                 this.VoteOperationCompleted = new System.Threading.SendOrPostCallback(this.OnVoteOperationCompleted);             }             this.InvokeAsync("Vote", new object[] {                         appcode,                         userID,                         qTaskID,                         answer}, this.VoteOperationCompleted, userState);         }         private void OnVoteOperationCompleted(object arg) {             if ((this.VoteCompleted != null)) {                 System.Web.Services.Protocols.InvokeCompletedEventArgs invokeArgs = ((System.Web.Services.Protocols.InvokeCompletedEventArgs)(arg));                 this.VoteCompleted(this, new VoteCompletedEventArgs(invokeArgs.Results, invokeArgs.Error, invokeArgs.Cancelled, invokeArgs.UserState));             }         }         /// <remarks/>         [System.Web.Services.Protocols.SoapDocumentMethodAttribute("http://tempuri.org/GiveUp", RequestNamespace="http://tempuri.org/", ResponseNamespace="http://tempuri.org/", Use=System.Web.Services.Description.SoapBindingUse.Literal, ParameterStyle=System.Web.Services.Protocols.SoapParameterStyle.Wrapped)]         public bool GiveUp(string appcode, string userID, string qTaskID) {             object[] results = this.Invoke("GiveUp", new object[] {                         appcode,                         userID,                         qTaskID});             return ((bool)(results[0]));         }         /// <remarks/>         public System.IAsyncResult BeginGiveUp(string appcode, string userID, string qTaskID, System.AsyncCallback callback, object asyncState) {             return this.BeginInvoke("GiveUp", new object[] {                         appcode,                         userID,                         qTaskID}, callback, asyncState);         }         /// <remarks/>         public bool EndGiveUp(System.IAsyncResult asyncResult) {             object[] results = this.EndInvoke(asyncResult);             return ((bool)(results[0]));         }         /// <remarks/>         public void GiveUpAsync(string appcode, string userID, string qTaskID) {             this.GiveUpAsync(appcode, userID, qTaskID, null);         }         /// <remarks/>         public void GiveUpAsync(string appcode, string userID, string qTaskID, object userState) {             if ((this.GiveUpOperationCompleted == null)) {                 this.GiveUpOperationCompleted = new System.Threading.SendOrPostCallback(this.OnGiveUpOperationCompleted);             }             this.InvokeAsync("GiveUp", new object[] {                         appcode,                         userID,                         qTaskID}, this.GiveUpOperationCompleted, userState);         }         private void OnGiveUpOperationCompleted(object arg) {             if ((this.GiveUpCompleted != null)) {                 System.Web.Services.Protocols.InvokeCompletedEventArgs invokeArgs = ((System.Web.Services.Protocols.InvokeCompletedEventArgs)(arg));                 this.GiveUpCompleted(this, new GiveUpCompletedEventArgs(invokeArgs.Results, invokeArgs.Error, invokeArgs.Cancelled, invokeArgs.UserState));             }         }         /// <remarks/>         [System.Web.Services.Protocols.SoapDocumentMethodAttribute("http://tempuri.org/GetQuestionTaskList", RequestNamespace="http://tempuri.org/", ResponseNamespace="http://tempuri.org/", Use=System.Web.Services.Description.SoapBindingUse.Literal, ParameterStyle=System.Web.Services.Protocols.SoapParameterStyle.Wrapped)]         public System.Data.DataSet GetQuestionTaskList(string appcode, string userID) {             object[] results = this.Invoke("GetQuestionTaskList", new object[] {                         appcode,                         userID});             return ((System.Data.DataSet)(results[0]));         }         /// <remarks/>         public System.IAsyncResult BeginGetQuestionTaskList(string appcode, string userID, System.AsyncCallback callback, object asyncState) {             return this.BeginInvoke("GetQuestionTaskList", new object[] {                         appcode,                         userID}, callback, asyncState);         }         /// <remarks/>         public System.Data.DataSet EndGetQuestionTaskList(System.IAsyncResult asyncResult) {             object[] results = this.EndInvoke(asyncResult);             return ((System.Data.DataSet)(results[0]));         }         /// <remarks/>         public void GetQuestionTaskListAsync(string appcode, string userID) {             this.GetQuestionTaskListAsync(appcode, userID, null);         }         /// <remarks/>         public void GetQuestionTaskListAsync(string appcode, string userID, object userState) {             if ((this.GetQuestionTaskListOperationCompleted == null)) {                 this.GetQuestionTaskListOperationCompleted = new System.Threading.SendOrPostCallback(this.OnGetQuestionTaskListOperationCompleted);             }             this.InvokeAsync("GetQuestionTaskList", new object[] {                         appcode,                         userID}, this.GetQuestionTaskListOperationCompleted, userState);         }         private void OnGetQuestionTaskListOperationCompleted(object arg) {             if ((this.GetQuestionTaskListCompleted != null)) {                 System.Web.Services.Protocols.InvokeCompletedEventArgs invokeArgs = ((System.Web.Services.Protocols.InvokeCompletedEventArgs)(arg));                 this.GetQuestionTaskListCompleted(this, new GetQuestionTaskListCompletedEventArgs(invokeArgs.Results, invokeArgs.Error, invokeArgs.Cancelled, invokeArgs.UserState));             }         }         /// <remarks/>         public new void CancelAsync(object userState) {             base.CancelAsync(userState);         }     }     /// <remarks/>     [System.CodeDom.Compiler.GeneratedCodeAttribute("wsdl", "4.0.30319.1")]     public delegate void GetRecordNumCompletedEventHandler(object sender, GetRecordNumCompletedEventArgs e);     /// <remarks/>     [System.CodeDom.Compiler.GeneratedCodeAttribute("wsdl", "4.0.30319.1")]     [System.Diagnostics.DebuggerStepThroughAttribute()]     [System.ComponentModel.DesignerCategoryAttribute("code")]     public partial class GetRecordNumCompletedEventArgs : System.ComponentModel.AsyncCompletedEventArgs {         private object[] results;         internal GetRecordNumCompletedEventArgs(object[] results, System.Exception exception, bool cancelled, object userState) :                  base(exception, cancelled, userState) {             this.results = results;         }         /// <remarks/>         public int[] Result {             get {                 this.RaiseExceptionIfNecessary();                 return ((int[])(this.results[0]));             }         }     }     /// <remarks/>     [System.CodeDom.Compiler.GeneratedCodeAttribute("wsdl", "4.0.30319.1")]     public delegate void GetVoteListCompletedEventHandler(object sender, GetVoteListCompletedEventArgs e);     /// <remarks/>     [System.CodeDom.Compiler.GeneratedCodeAttribute("wsdl", "4.0.30319.1")]     [System.Diagnostics.DebuggerStepThroughAttribute()]     [System.ComponentModel.DesignerCategoryAttribute("code")]     public partial class GetVoteListCompletedEventArgs : System.ComponentModel.AsyncCompletedEventArgs {         private object[] results;         internal GetVoteListCompletedEventArgs(object[] results, System.Exception exception, bool cancelled, object userState) :                  base(exception, cancelled, userState) {             this.results = results;         }         /// <remarks/>         public System.Data.DataSet Result {             get {                 this.RaiseExceptionIfNecessary();                 return ((System.Data.DataSet)(this.results[0]));             }         }     }     /// <remarks/>     [System.CodeDom.Compiler.GeneratedCodeAttribute("wsdl", "4.0.30319.1")]     public delegate void VoteCompletedEventHandler(object sender, VoteCompletedEventArgs e);     /// <remarks/>     [System.CodeDom.Compiler.GeneratedCodeAttribute("wsdl", "4.0.30319.1")]     [System.Diagnostics.DebuggerStepThroughAttribute()]     [System.ComponentModel.DesignerCategoryAttribute("code")]     public partial class VoteCompletedEventArgs : System.ComponentModel.AsyncCompletedEventArgs {         private object[] results;         internal VoteCompletedEventArgs(object[] results, System.Exception exception, bool cancelled, object userState) :                  base(exception, cancelled, userState) {             this.results = results;         }         /// <remarks/>         public bool Result {             get {                 this.RaiseExceptionIfNecessary();                 return ((bool)(this.results[0]));             }         }     }     /// <remarks/>     [System.CodeDom.Compiler.GeneratedCodeAttribute("wsdl", "4.0.30319.1")]     public delegate void GiveUpCompletedEventHandler(object sender, GiveUpCompletedEventArgs e);     /// <remarks/>     [System.CodeDom.Compiler.GeneratedCodeAttribute("wsdl", "4.0.30319.1")]     [System.Diagnostics.DebuggerStepThroughAttribute()]     [System.ComponentModel.DesignerCategoryAttribute("code")]     public partial class GiveUpCompletedEventArgs : System.ComponentModel.AsyncCompletedEventArgs {         private object[] results;         internal GiveUpCompletedEventArgs(object[] results, System.Exception exception, bool cancelled, object userState) :                  base(exception, cancelled, userState) {             this.results = results;         }         /// <remarks/>         public bool Result {             get {                 this.RaiseExceptionIfNecessary();                 return ((bool)(this.results[0]));             }         }     }     /// <remarks/>     [System.CodeDom.Compiler.GeneratedCodeAttribute("wsdl", "4.0.30319.1")]     public delegate void GetQuestionTaskListCompletedEventHandler(object sender, GetQuestionTaskListCompletedEventArgs e);     /// <remarks/>     [System.CodeDom.Compiler.GeneratedCodeAttribute("wsdl", "4.0.30319.1")]     [System.Diagnostics.DebuggerStepThroughAttribute()]     [System.ComponentModel.DesignerCategoryAttribute("code")]     public partial class GetQuestionTaskListCompletedEventArgs : System.ComponentModel.AsyncCompletedEventArgs {         private object[] results;         internal GetQuestionTaskListCompletedEventArgs(object[] results, System.Exception exception, bool cancelled, object userState) :                  base(exception, cancelled, userState) {             this.results = results;         }         /// <remarks/>         public System.Data.DataSet Result {             get {                 this.RaiseExceptionIfNecessary();                 return ((System.Data.DataSet)(this.results[0]));             }         }     } } 。

方法三：利用http 协议的get和post 这是最为灵活的方法.

复制代码代码如下

View Code  using System; using System.Collections; using System.IO; using System.Net; using System.Text; using System.Xml; using System.Xml.Serialization; namespace Bingosoft.RIA.Common {     /// <summary>     ///  利用WebRequest/WebResponse进行WebService调用的类     /// </summary>     public class WebServiceCaller     {         #region Tip:使用说明         //webServices 应该支持Get和Post调用，在web.config应该增加以下代码         //<webServices>         //  <protocols>         //    <add name="HttpGet"/>         //    <add name="HttpPost"/>         //  </protocols>         //</webServices>         //调用示例：         //Hashtable ht = new Hashtable();  //Hashtable 为webservice所需要的参数集         //ht.Add("str", "test");         //ht.Add("b", "true");         //XmlDocument xx = WebSvcCaller.QuerySoapWebService("http://localhost:81/service.asmx", "HelloWorld", ht);         //MessageBox.Show(xx.OuterXml);         #endregion         /// <summary>         /// 需要WebService支持Post调用         /// </summary>         public static XmlDocument QueryPostWebService(String URL, String MethodName, Hashtable Pars)         {             HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(URL + "/" + MethodName);             request.Method = "POST";             request.ContentType = "application/x-www-form-urlencoded";             SetWebRequest(request);             byte[] data = EncodePars(Pars);             WriteRequestData(request, data);             return ReadXmlResponse(request.GetResponse());         }         /// <summary>         /// 需要WebService支持Get调用         /// </summary>         public static XmlDocument QueryGetWebService(String URL, String MethodName, Hashtable Pars)         {             HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(URL + "/" + MethodName + "?" + ParsToString(Pars));             request.Method = "GET";             request.ContentType = "application/x-www-form-urlencoded";             SetWebRequest(request);             return ReadXmlResponse(request.GetResponse());         }         /// <summary>         /// 通用WebService调用(Soap),参数Pars为String类型的参数名、参数值         /// </summary>         public static XmlDocument QuerySoapWebService(String URL, String MethodName, Hashtable Pars)         {             if (_xmlNamespaces.ContainsKey(URL))             {                 return QuerySoapWebService(URL, MethodName, Pars, _xmlNamespaces[URL].ToString());             }             else             {                 return QuerySoapWebService(URL, MethodName, Pars, GetNamespace(URL));             }         }         private static XmlDocument QuerySoapWebService(String URL, String MethodName, Hashtable Pars, string XmlNs)         {             _xmlNamespaces[URL] = XmlNs;//加入缓存，提高效率             HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(URL);             request.Method = "POST";             request.ContentType = "text/xml; charset=utf-8";             request.Headers.Add("SOAPAction", "\"" + XmlNs + (XmlNs.EndsWith("/") ? "" : "/") + MethodName + "\"");             SetWebRequest(request);             byte[] data = EncodeParsToSoap(Pars, XmlNs, MethodName);             WriteRequestData(request, data);             XmlDocument doc = new XmlDocument(), doc2 = new XmlDocument();             doc = ReadXmlResponse(request.GetResponse());             XmlNamespaceManager mgr = new XmlNamespaceManager(doc.NameTable);             mgr.AddNamespace("soap", "http://schemas.xmlsoap.org/soap/envelope/");             String RetXml = doc.SelectSingleNode("//soap:Body/*/*", mgr).InnerXml;             doc2.LoadXml("<root>" + RetXml + "</root>");             AddDelaration(doc2);             return doc2;         }         private static string GetNamespace(String URL)         {             HttpWebRequest request = (HttpWebRequest)WebRequest.Create(URL + "?WSDL");             SetWebRequest(request);             WebResponse response = request.GetResponse();             StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8);             XmlDocument doc = new XmlDocument();             doc.LoadXml(sr.ReadToEnd());             sr.Close();             return doc.SelectSingleNode("//@targetNamespace").Value;         }         private static byte[] EncodeParsToSoap(Hashtable Pars, String XmlNs, String MethodName)         {             XmlDocument doc = new XmlDocument();             doc.LoadXml("<soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\"></soap:Envelope>");             AddDelaration(doc);             //XmlElement soapBody = doc.createElement_x_x("soap", "Body", "http://schemas.xmlsoap.org/soap/envelope/");             XmlElement soapBody = doc.CreateElement("soap", "Body", "http://schemas.xmlsoap.org/soap/envelope/");             //XmlElement soapMethod = doc.createElement_x_x(MethodName);             XmlElement soapMethod = doc.CreateElement(MethodName);             soapMethod.SetAttribute("xmlns", XmlNs);             foreach (string k in Pars.Keys)             {                 //XmlElement soapPar = doc.createElement_x_x(k);                 XmlElement soapPar = doc.CreateElement(k);                 soapPar.InnerXml = ObjectToSoapXml(Pars[k]);                 soapMethod.AppendChild(soapPar);             }             soapBody.AppendChild(soapMethod);             doc.DocumentElement.AppendChild(soapBody);             return Encoding.UTF8.GetBytes(doc.OuterXml);         }         private static string ObjectToSoapXml(object o)         {             XmlSerializer mySerializer = new XmlSerializer(o.GetType());             MemoryStream ms = new MemoryStream();             mySerializer.Serialize(ms, o);             XmlDocument doc = new XmlDocument();             doc.LoadXml(Encoding.UTF8.GetString(ms.ToArray()));             if (doc.DocumentElement != null)             {                 return doc.DocumentElement.InnerXml;             }             else             {                 return o.ToString();             }         }         /// <summary>         /// 设置凭证与超时时间         /// </summary>         /// <param name="request"></param>         private static void SetWebRequest(HttpWebRequest request)         {             request.Credentials = CredentialCache.DefaultCredentials;             request.Timeout = 10000;         }         private static void WriteRequestData(HttpWebRequest request, byte[] data)         {             request.ContentLength = data.Length;             Stream writer = request.GetRequestStream();             writer.Write(data, 0, data.Length);             writer.Close();         }         private static byte[] EncodePars(Hashtable Pars)         {             return Encoding.UTF8.GetBytes(ParsToString(Pars));         }         private static String ParsToString(Hashtable Pars)         {             StringBuilder sb = new StringBuilder();             foreach (string k in Pars.Keys)             {                 if (sb.Length > 0)                 {                     sb.Append("&");                 }                 //sb.Append(HttpUtility.UrlEncode(k) + "=" + HttpUtility.UrlEncode(Pars[k].ToString()));             }             return sb.ToString();         }         private static XmlDocument ReadXmlResponse(WebResponse response)         {             StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8);             String retXml = sr.ReadToEnd();             sr.Close();             XmlDocument doc = new XmlDocument();             doc.LoadXml(retXml);             return doc;         }         private static void AddDelaration(XmlDocument doc)         {             XmlDeclaration decl = doc.CreateXmlDeclaration("1.0", "utf-8", null);             doc.InsertBefore(decl, doc.DocumentElement);         }         private static Hashtable _xmlNamespaces = new Hashtable();//缓存xmlNamespace，避免重复调用GetNamespace     } } 。

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