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        深入.net調用webservice的總結分析

        來源:懂視網 責編:小采 時間:2020-11-27 22:41:06
        文檔

        深入.net調用webservice的總結分析

        深入.net調用webservice的總結分析: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
        推薦度:
        導讀深入.net調用webservice的總結分析: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

        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
        代碼如下:
        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
        代碼如下:
        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";//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:
        代碼如下:
        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。
        代碼如下:
        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
            }
        }

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        文檔

        深入.net調用webservice的總結分析

        深入.net調用webservice的總結分析: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
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