.net 调用webservice 总结【转】

.net 调用webservice 总结

最近做一个项目，由于是在别人框架里开发app,导致了很多限制，其中一个就是不能直接引用webservice 。

我们都知道，调用webserivice 最简单的方法就是在 "引用"? 那里点击右键，然后选择"引用web服务"，再输入服务地址。

确定后，会生成一个app.config 里面就会自动生成了一些配置信息。

现在正在做的这个项目就不能这么干。后来经过一番搜索，就找出另外几种动态调用webservice 的方法。

?

废话少说，下面是webservice 代码

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

动态调用示例：

方法一：

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

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

?

在网上找了一个更为详细的

http://www.voidcn.com/article/p-kthiqwfl-qo.html

方法二：利用 wsdl.exe生成webservice代理类:

根据提供的wsdl生成webservice代理类，然后在代码里引用这个类文件。

步骤：1、在开始菜单找到? Microsoft Visual Studio 2010 下面的Visual Studio Tools ， 点击Visual Studio 命令提示(2010)，打开命令行。

????????? 2、?在命令行中输入：? wsdl /language:c# /n:TestDemo /out:d:/Temp/TestService.cs?http://jm1.services.gmcc.net/ad/Services/AD.asmx?wsdl

??????????????? 这句命令行的意思是：对最后面的服务地址进行编译，在D盘temp 目录下生成testservice文件。

????????? 3、 把上面命令编译后的cs文件，复制到我们项目中，在项目代码中可以直接new 一个出来后，可以进行调用。

???贴出由命令行编译出来的代码：

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

更为详细的可以参见：http://www.voidcn.com/article/p-drlofvnv-dn.html

方法三：利用http 协议的get? 和post

这是最为灵活的方法。

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