动态调用webservice，如何接受out返回值。
问题是这样的。
客户端不是直接调用webservice，中间还有个代理类，这个类负责动态编译调用，webservice。
客户端代码
using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;using ShangWu168.Tools;using ShangWu168.Service.Dynamic;using System.Data;using System.Diagnostics;using System.Runtime.Serialization.Formatters.Binary;using System.IO;namespace ShangWu168.Web{ public partial class test : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { this.InitialList(); } private void InitialList() { int intCurrentPage = RequestClass.GetQueryInt("page", 1);//当前页 int PageSize = RequestClass.GetQueryInt("PageSize", 15);//每页条数 string PageCount = "0";//这个地方想接收webservice返回的out值 string RowsCount = "0";//这个地方想接收webservice返回的out string strUrl = "http://127.0.0.1:78/Pagination.asmx"; string[] args = new string[10]; args[0] = "web_member"; args[1] = "member_id"; args[2] = "*"; args[3] = "desc"; args[4] = "member_id"; args[5] = intCurrentPage.ToString(); args[6] = PageSize.ToString(); args[7] = "member_id>1"; args[8] = PageCount; args[9] = RowsCount; Stopwatch sw = new Stopwatch(); sw.Start(); byte[] zipBuffer = (byte[])WebServiceDynamicInvoke.InvokeWebService(strUrl, "Pagination", "GetDataSetSurrogateZipBytes", args); ; byte[] buffer = UnZip.Decompress(zipBuffer); BinaryFormatter bf = new BinaryFormatter(); DataSetSurrogate dss = bf.Deserialize(new MemoryStream(buffer)) as DataSetSurrogate; DataSet ds = dss.ConvertToDataSet(); GridView1.DataSource = ds.Tables[0].DefaultView; GridView1.DataBind(); sw.Stop(); } }}using System;using System.Collections.Generic;using System.Text;using System.Net;using System.IO;using Microsoft.CSharp;using System.CodeDom.Compiler;using System.CodeDom;using System.Web.Services.Description;namespace ShangWu168.Service.Dynamic{ public class WebServiceDynamicInvoke { /// <summary> /// 动态调用WebService /// </summary> /// <param name="url">WebService地址</param> /// <param name="methodname">方法名(模块名)</param> /// <param name="args">参数列表</param> /// <returns>object</returns> public static object InvokeWebService(string url, string methodname, object[] args) { return InvokeWebService(url, null, methodname, args); } /// <summary> /// 动态调用WebService /// </summary> /// <param name="url">WebService地址</param> /// <param name="classname">类名</param> /// <param name="methodname">方法名(模块名)</param> /// <param name="args">参数列表</param> /// <returns>object</returns> public static object InvokeWebService(string url, string classname, string methodname, object[] args) { string @namespace = "ServiceBase.WebService.DynamicWebLoad"; if (classname == null || classname == "") { classname = WebServiceDynamicInvoke.GetClassName(url); } //获取服务描述语言(WSDL) WebClient wc = new WebClient(); Stream stream = wc.OpenRead(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); CSharpCodeProvider csc = new CSharpCodeProvider(); ICodeCompiler icc = csc.CreateCompiler(); //设定编译器的参数 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 = icc.CompileAssemblyFromDom(cplist, ccu); if (true == cr.Errors.HasErrors) { System.Text.StringBuilder sb = new StringBuilder(); foreach (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); System.Reflection.MethodInfo mi = t.GetMethod(methodname); return mi.Invoke(obj, args);//这里不知道如何接受webservice的out值 } /// <summary> /// 解析url获取类名 /// </summary> /// <param name="url">url地址</param> /// <returns>string</returns> private static string GetClassName(string url) { string[] parts = url.Split('/'); string[] pps = parts[parts.Length - 1].Split('.'); return pps[0]; } }}
public static object InvokeWebService(string url, string classname, string methodname, object[] args,params Type[] types){ …………………… System.Reflection.MethodInfo mi = null; if (types.Length == 0) mi=t.GetMethod(methodname); else mi=t.GetMethod(methodname, types); return mi.Invoke(obj, args);//这里不知道如何接受webservice的out值}调用你另外一个贴子中4楼的helloworld方法 string msg; string result=string.Empty; object[] args=new object[]{result}; Type[] type=new Type[]{Type.GetType("System.String&")}; msg= WebServiceDynamicInvoke.InvokeWebService("http://localhost:10189/web1/WebService.asmx",null, "HelloWorld", args,type).ToString(); MessageBox.Show(msg); MessageBox.Show(args[0].ToString());