动态调用WebService的工具类（做个记录，备忘）

using ?System;
using ?System.Collections.Generic;
using ?System.Text;

using ?System.Net;
using ?System.Web.Services.Description;
using ?System.CodeDom;
using ?System.CodeDom.Compiler;
using ?Microsoft.CSharp;

namespace ?Gren.Framework
{
???? /// ? <summary>
???? /// ?动态调用WebService的工具类
???? /// ? </summary>
???? public ? class ?WebServiceUtils
????{
???????? private ? string ?url;
???????? private ? string ?methodName;
???????? private ? object []?args;

???????? private ? string ?username;
???????? private ? string ?password;
???????? private ? string ?domain;
???????? private ? bool ?needCredential;

???????? /// ? <summary>
???????? /// ?web服务的地址
???????? /// ? </summary>
???????? public ? string ?Url
????????{
???????????? get ?{? return ?url;?}
???????????? set ?{?url? = ?value;?}
????????}

???????? /// ? <summary>
???????? /// ?web服务的方法名
???????? /// ? </summary>
???????? public ? string ?MethodName
????????{
???????????? get ?{? return ?methodName;?}
???????????? set ?{?methodName? = ?value;?}
????????}

???????? /// ? <summary>
???????? /// ?web服务的方法参数
???????? /// ? </summary>
???????? public ? object []?Args
????????{
???????????? get ?{? return ?args;?}
???????????? set ?{?args? = ?value;?}
????????}

???????? /// ? <summary>
???????? /// ?用户名
???????? /// ? </summary>
???????? public ? string ?Username
????????{
???????????? get ?{? return ?username;?}
???????????? set ?{?username? = ?value;?}
????????}

???????? /// ? <summary>
???????? /// ?密码
???????? /// ? </summary>
???????? public ? string ?Password
????????{
???????????? get ?{? return ?password;?}
???????????? set ?{?password? = ?value;?}
????????}

???????? /// ? <summary>
???????? /// ?域名
???????? /// ? </summary>
???????? public ? string ?Domain
????????{
???????????? get ?{? return ?domain;?}
???????????? set ?{?domain? = ?value;?}
????????}

???????? /// ? <summary>
???????? /// ?是否需要身份验证
???????? /// ? </summary>
???????? public ? bool ?NeedCredential
????????{
???????????? get ?{? return ?needCredential;?}
???????????? set ?{?needCredential? = ?value;?}
????????}

???????? public ?WebServiceUtils()
????????{?
???????????? this .url? = ? string .Empty;
???????????? this .methodName? = ? string .Empty;
???????????? this .args? = ? null ;
???????????? this .username? = ? string .Empty;
???????????? this .password? = ? string .Empty;
???????????? this .domain? = ? string .Empty;
???????????? this .needCredential? = ? false ;
????????}

???????? /// ? <summary>
???????? /// ?调用WebService
???????? /// ? </summary>
???????? public ? object ?Response()
????????{
???????????? object ?obj? = ? null ;

????????????Type?t? = ? typeof (WebServiceProxy);
????????????
????????????AppDomain?otherDomain? = ?AppDomain.CreateDomain( " WebServieDoamin " );

???????????? try
????????????{
????????????????WebServiceProxy?proxy? = ?(WebServiceProxy)otherDomain.CreateInstanceAndUnwrap(t.Assembly.FullName,?t.FullName);
????????????????proxy.Url? = ? this .url;
????????????????proxy.MethodName? = ? this .methodName;
????????????????proxy.Args? = ? this .args;
????????????????proxy.Username? = ? this .username;
????????????????proxy.Password? = ? this .password;
????????????????proxy.Domain? = ? this .domain;
????????????????proxy.NeedCredential? = ? this .needCredential;

????????????????obj? = ?proxy.InvokeWebService();
????????????}
???????????? finally
????????????{
????????????????AppDomain.Unload(otherDomain);
????????????}

???????????? return ?obj;
????????}?
????}


???? /// ? <summary>
???? /// ?WebService代理类，不直接使用
???? /// ? </summary>
???? public ? class ?WebServiceProxy?:?MarshalByRefObject
????{
???????? private ? string ?url;
???????? private ? string ?methodName;
???????? private ? object []?args;

???????? private ? string ?username;
???????? private ? string ?password;
???????? private ? string ?domain;
???????? private ? bool ?needCredential;

???????? /// ? <summary>
???????? /// ?web服务的地址
???????? /// ? </summary>
???????? public ? string ?Url
????????{
???????????? get ?{? return ?url;?}
???????????? set ?{?url? = ?value;?}
????????}

???????? /// ? <summary>
???????? /// ?web服务的方法名
???????? /// ? </summary>
???????? public ? string ?MethodName
????????{
???????????? get ?{? return ?methodName;?}
???????????? set ?{?methodName? = ?value;?}
????????}

???????? /// ? <summary>
???????? /// ?web服务的方法参数
???????? /// ? </summary>
???????? public ? object []?Args
????????{
???????????? get ?{? return ?args;?}
???????????? set ?{?args? = ?value;?}
????????}

???????? /// ? <summary>
???????? /// ?用户名
???????? /// ? </summary>
???????? public ? string ?Username
????????{
???????????? get ?{? return ?username;?}
???????????? set ?{?username? = ?value;?}
????????}

???????? /// ? <summary>
???????? /// ?密码
???????? /// ? </summary>
???????? public ? string ?Password
????????{
???????????? get ?{? return ?password;?}
???????????? set ?{?password? = ?value;?}
????????}

???????? /// ? <summary>
???????? /// ?域名
???????? /// ? </summary>
???????? public ? string ?Domain
????????{
???????????? get ?{? return ?domain;?}
???????????? set ?{?domain? = ?value;?}
????????}

???????? /// ? <summary>
???????? /// ?是否需要身份验证
???????? /// ? </summary>
???????? public ? bool ?NeedCredential
????????{
???????????? get ?{? return ?needCredential;?}
???????????? set ?{?needCredential? = ?value;?}
????????}

???????? private ? string ?GetWsClassName( string ?wsUrl)
????????{
???????????? string []?parts? = ?wsUrl.Split( ' / ' );
???????????? string []?pps? = ?parts[parts.Length? - ? 1 ].Split( ' . ' );

???????????? return ?pps[ 0 ];
????????}

???????? public ? object ?InvokeWebService()
????????{
???????????? string ?@namespace? = ? " EnterpriseServerBase.WebService.DynamicWebCalling " ;
????????????
???????????? string ?classname? = ? this .GetWsClassName( this .url);

???????????? try
????????????{
????????????????NetworkCredential?myCredential? = ? new ?NetworkCredential( this .username,? this .password,? this .domain);

???????????????? // 获取WSDL
????????????????WebClient?wc? = ? new ?WebClient();

???????????????? if ?( this .needCredential)
????????????????{
????????????????????wc.Credentials? = ?myCredential;
????????????????}

????????????????System.IO.Stream?stream? = ?wc.OpenRead( this .url? + ? " ?WSDL " );
????????????????ServiceDescription?sd? = ?ServiceDescription.Read(stream);
????????????????ServiceDescriptionImporter?sdi? = ? new ?ServiceDescriptionImporter();
????????????????sdi.AddServiceDescription(sd,? "" ,? "" );
????????????????CodeNamespace?cn? = ? new ?CodeNamespace(@namespace);

???????????????? // 生成客户端代理类代码
????????????????CodeCompileUnit?ccu? = ? new ?CodeCompileUnit();
????????????????ccu.Namespaces.Add(cn);
????????????????sdi.Import(cn,?ccu);

????????????????CodeDomProvider?csc? = ?CodeDomProvider.CreateProvider( " C# " );

???????????????? // 设定编译参数
????????????????CompilerParameters?cplist? = ? new ?CompilerParameters();
????????????????cplist.GenerateExecutable? = ? false ;
????????????????cplist.GenerateInMemory? = ? true ;
????????????????cplist.ReferencedAssemblies.Add( " System.dll " );
????????????????cplist.ReferencedAssemblies.Add( " System.XML.dll " );
????????????????cplist.ReferencedAssemblies.Add( " System.Web.Services.dll " );
????????????????cplist.ReferencedAssemblies.Add( " System.Data.dll " );

???????????????? // 编译代理类
????????????????CompilerResults?cr? = ?csc.CompileAssemblyFromDom(cplist,?ccu);
???????????????? if ?(cr.Errors.HasErrors)
????????????????{
????????????????????System.Text.StringBuilder?sb? = ? new ?System.Text.StringBuilder();
???????????????????? foreach ?(System.CodeDom.Compiler.CompilerError?ce? in ?cr.Errors)
????????????????????{
????????????????????????sb.Append(ce.ToString());
????????????????????????sb.Append(System.Environment.NewLine);
????????????????????}
???????????????????? throw ? new ?Exception(sb.ToString());
????????????????}

???????????????? // 生成代理实例，并调用方法
????????????????System.Reflection.Assembly?assembly? = ?cr.CompiledAssembly;
????????????????Type?t? = ?assembly.GetType(@namespace? + ? " . " ? + ?classname,? true ,? true );
???????????????? object ?obj? = ?Activator.CreateInstance(t);

???????????????? if ?( this .needCredential)
????????????????{
????????????????????System.Reflection.PropertyInfo?pi? = ?t.GetProperty( " Credentials " );
????????????????????pi.SetValue(obj,?myCredential,? null );
????????????????}
????????????????
????????????????System.Reflection.MethodInfo?mi? = ?t.GetMethod( this .methodName);

???????????????? return ?mi.Invoke(obj,?args);
????????????}
???????????? catch ?(Exception?ex)
????????????{
???????????????? throw ? new ?Exception(ex.InnerException.Message,? new ?Exception(ex.InnerException.StackTrace));????????????}????????}????????????}}