深入.net調用webservice的總結分析_.Net教程

      編輯Tag賺U幣

      推薦:c#自定義控件中事件的處理
      using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; namespace ClientControl { //1.定義委托 public delegate void NewsClickEventHandle(obj

      最近做一個項目,由于是在別人框架里開發app,導致了很多限制,其中一個就是不能直接引用webservice
      我們都知道,調用webserivice 最簡單的方法就是在 "引用" 那里點擊右鍵,然后選擇"引用web服務",再輸入服務地址。
      確定后,會生成一個app.config 里面就會自動生成了一些配置信息。
      現在正在做的這個項目就不能這么干。后來經過一番搜索,就找出另外幾種動態調用webservice 的方法。
      廢話少說,下面是webservice 代碼
      復制代碼 代碼如下:www.wf0088.com

      View Code
      using System;
      using System.Collections.Generic;
      using System.Linq;
      using System.Web;
      using System.Web.Services;
      namespace TestWebService
      {
      /// <summary>
      /// Service1 的摘要說明
      /// </summary>
      [WebService(Namespace = "http://tempuri.org/",Description="我的Web服務")]
      [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
      [System.ComponentModel.ToolboxItem(false)]
      // 若要允許使用 ASP.NET AJAX 從腳本中調用此 Web 服務,請取消對下行的注釋。
      // [System.Web.Script.Services.ScriptService]
      public class TestWebService : System.Web.Services.WebService
      {
      [WebMethod]
      public string HelloWorld()
      {
      return "測試Hello World";
      }
      [WebMethod]
      public string Test()
      {
      return "測試Test";
      }

      [WebMethod(CacheDuration = 60,Description = "測試")]
      public List<String> GetPersons()
      {
      List<String> list = new List<string>();
      list.Add("測試一");
      list.Add("測試二");
      list.Add("測試三");
      return list;
      }
      }
      }

      動態調用示例:
      方法一:
      看到很多動態調用WebService都只是動態調用地址而已,下面發一個不光是根據地址調用,方法名也可以自己指定的,主要原理是根據指定的WebService地址的WSDL,然后解析模擬生成一個代理類,通過反射調用里面的方法
      復制代碼 代碼如下:www.wf0088.com

      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";//這個地址可以寫在Config文件里面,這里取出來就行了.在原地址后面加上: ?WSDL
      Stream stream = client.OpenRead(url);
      ServiceDescription description = ServiceDescription.Read(stream);
      ServiceDescriptionImporter importer = new ServiceDescriptionImporter();//創建客戶端代理代理類。
      importer.ProtocolName = "Soap"; //指定訪問協議。
      importer.Style = ServiceDescriptionImportStyle.Client; //生成客戶端代理。
      importer.CodeGenerationOptions = CodeGenerationOptions.GenerateProperties | CodeGenerationOptions.GenerateNewAsync;
      importer.AddServiceDescription(description, null, null); //添加WSDL文檔。
      CodeNamespace nmspace = new CodeNamespace(); //命名空間
      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";//輸出程序集的名稱
      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)
      {
      // 顯示編譯錯誤信息
      }
      Assembly asm = Assembly.LoadFrom("MyTest.dll");//加載前面生成的程序集
      Type t = asm.GetType("TestWebService.TestWebService");
      object o = Activator.CreateInstance(t);
      MethodInfo method = t.GetMethod("GetPersons");//GetPersons是服務端的方法名稱,你想調用服務端的什么方法都可以在這里改,最好封裝一下
      String[] item = (String[])method.Invoke(o, null);
      //注:method.Invoke(o, null)返回的是一個Object,如果你服務端返回的是DataSet,這里也是用(DataSet)method.Invoke(o, null)轉一下就行了,method.Invoke(0,null)這里的null可以傳調用方法需要的參數,string[]形式的
      foreach (string str in item)
      Console.WriteLine(str);
      //上面是根據WebService地址,模似生成一個代理類,如果你想看看生成的代碼文件是什么樣子,可以用以下代碼保存下來,默認是保存在bin目錄下面
      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代理類:
      根據提供的wsdl生成webservice代理類,然后在代碼里引用這個類文件。
      步驟:
      1、在開始菜單找到 Microsoft Visual Studio 2010 下面的Visual Studio Tools , 點擊Visual Studio 命令提示(2010),打開命令行。
      2、 在命令行中輸入: wsdl /language:c# /n:TestDemo /out:d:/Temp/TestService.cs http://jm1.services.gmcc.net/ad/Services/AD.asmx?wsdl
      這句命令行的意思是:對最后面的服務地址進行編譯,在D盤temp 目錄下生成testservice文件。
      3、 把上面命令編譯后的cs文件,復制到我們項目中,在項目代碼中可以直接new 一個出來后,可以進行調用。
      貼出由命令行編譯出來的代碼:
      復制代碼 代碼如下:www.wf0088.com

      View Code
      //------------------------------------------------------------------------------
      // <auto-generated>
      // 此代碼由工具生成。
      // 運行時版本:4.0.30319.225
      //
      // 對此文件的更改可能會導致不正確的行為,并且如果
      // 重新生成代碼,這些更改將會丟失。
      // </auto-generated>
      //------------------------------------------------------------------------------
      //
      // 此源代碼由 wsdl 自動生成, 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 協議的get和post
      這是最為靈活的方法。
      復制代碼 代碼如下:www.wf0088.com

      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進行WebService調用的類
      /// </summary>
      public class WebServiceCaller
      {
      #region Tip:使用說明
      //webServices 應該支持Get和Post調用,在web.config應該增加以下代碼
      //<webServices>
      // <protocols>
      // <add name="HttpGet"/>
      // <add name="HttpPost"/>
      // </protocols>
      //</webServices>
      //調用示例:
      //Hashtable ht = new Hashtable(); //Hashtable 為webservice所需要的參數集
      //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調用
      /// </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調用
      /// </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調用(Soap),參數Pars為String類型的參數名、參數值
      /// </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;//加入緩存,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("http://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("http://@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>
      /// 設置憑證與超時時間
      /// </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();//緩存xmlNamespace,避免重復調用GetNamespace
      }
      }

      分享:ASP.NET利用MD.DLL轉EXCEL具體實現
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      來源:模板無憂//所屬分類:.Net教程/更新時間:2013-05-22
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