.net 調用webservice 總結【轉】

時間 2019-11-07

標籤調用 webservice 總結欄目 WebService 简体版

原文原文鏈接

.net 調用webservice 總結

最近作一個項目，因爲是在別人框架裏開發app,致使了不少限制，其中一個就是不能直接引用webservice 。html

咱們都知道，調用webserivice 最簡單的方法就是在 "引用" 那裏點擊右鍵，而後選擇"引用web服務"，再輸入服務地址。web

肯定後，會生成一個app.config 裏面就會自動生成了一些配置信息。c#

如今正在作的這個項目就不能這麼幹。後來通過一番搜索，就找出另外幾種動態調用webservice 的方法。緩存

廢話少說，下面是webservice 代碼app

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="個人Web服務")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [System.ComponentModel.ToolboxItem(false)]
    // 若要容許使用 ASP.NET AJAX 從腳本中調用此 Web 服務，請取消對下行的註釋。
    // [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：框架

方法一：async

看到不少動態調用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，方法名也能夠本身指定的,主要原理是根據指定的WebService地址的WSDL,而後解析模擬生成一個代理類,經過反射調用裏面的方法 ide

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";//這個地址能夠寫在Config文件裏面，這裏取出來就好了.在原地址後面加上： ?WSDL
            Stream stream = client.OpenRead(url);
            ServiceDescription description = ServiceDescription.Read(stream);
            ServiceDescriptionImporter importer = new ServiceDescriptionImporter();//建立客戶端代理代理類。
            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麼方法均可以在這裏改,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,若是你服務端返回的是DataSet,這裏也是用(DataSet)method.Invoke(o, null)轉一下就好了,method.Invoke(0,null)這裏的null能夠傳調用方法須要的參數,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,若是你想看看生成的代碼文件是什麼樣子，能夠用如下代碼保存下來，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();
        } 
    }
}

在網上找了一個更爲詳細的工具

http://blog.csdn.net/ysq5202121/article/details/6942813post

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，而後在代碼裏引用這個類文件。

步驟：一、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。

二、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：對最後面的服務地址進行編譯，在D盤temp 目錄下生成testservice文件。

三、把上面命令編譯後的cs文件，複製到咱們項目中，在項目代碼中能夠直接new 一個出來後，能夠進行調用。

貼出由命令行編譯出來的代碼：

 //------------------------------------------------------------------------------
// <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致使不正確的行爲，而且若是
//     從新生成代碼，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]));
            }
        }
    }
}

更爲詳細的能夠參見：http://blog.csdn.net/slimboy123/article/details/4344914

方法三：利用http 協議的get 和post

這是最爲靈活的方法。

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應該增長如下代碼
        //<webServices>
        //  <protocols>
        //    <add name="HttpGet"/>
        //    <add name="HttpPost"/>
        //  </protocols>
        //</webServices>
        //調用示例：
        //Hashtable ht = new Hashtable();  //Hashtable 爲webservice所須要的參數集
        //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>
        /// 須要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>
        /// 須要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爲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，提升效率
            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>
        /// 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，避免重複調用GetNamespace
    }
}

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