.Net动态调用webservice-优快云博客

1.CSharp实现类

代码

using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.IO;
using System.Web.Services.Description;
using System.CodeDom;
using Microsoft.CSharp;
using System.CodeDom.Compiler;

namespace WindowsApplication1
{
     /// <summary>
     /// 动态调用WebService
     /// </summary>
     public class WsCaller
    {
         /// <summary>
         /// 获取WebService类型
         /// </summary>
         /// <param name="wsUrl"> WebService地址 </param>
         /// <returns></returns>
         private static string GetWsClassName( string wsUrl)
        {
             string [] parts = wsUrl.Split( ' / ' );
             string [] pps = parts[parts.Length - 1 ].Split( ' . ' );

             return pps[ 0 ];
        }

         /// <summary>
         /// 调用WebService
         /// </summary>
         /// <param name="wsUrl"> WebService地址 </param>
         /// <param name="methodName"> 方法名称 </param>
         /// <param name="args"> 参数列表 </param>
         /// <returns></returns>
         public static object InvokeWebService( string wsUrl, string methodName, object [] args)
        {
             return InvokeWebService(wsUrl, null , methodName, args);
        }

         /// <summary>
         /// 调用WebService
         /// </summary>
         /// <param name="wsUrl"> WebService地址 </param>
         /// <param name="className"> 类名 </param>
         /// <param name="methodName"> 方法名称 </param>
         /// <param name="args"> 参数列表 </param>
         /// <returns></returns>
         public static object InvokeWebService( string wsUrl, string className, string methodName, object [] args)
        {
             string @namespace = " EnterpriseServerBase.WebService.DynamicWebCalling " ;
             if ((className == null ) || (className == "" ))
            {
                className = GetWsClassName(wsUrl);
            }

             try
            {
                 // 获取WSDL
                WebClient wc = new WebClient();
                Stream stream = wc.OpenRead(wsUrl + " ?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 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);
                System.Reflection.MethodInfo mi = t.GetMethod(methodName);

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

2.调用测试

A:建立Java编写的WebService,公布的一个方法为:HelloWorld,返回值为HelloWorld

发布地址为：http://127.0.0.1:8090/HelloWorld/services/Service

B:建立CSharp编写的WebService,公布的一个方法为:HelloWorld,返回值为HelloWorld

发布地址为：http://127.0.0.1/WebService/Service.asmx

调用方法代码如下：

            try
            {
                string url = "http://127.0.0.1:8090/HelloWorld/services/Service";
                //string url = "http://localhost/WebService/Service.asmx";
                //string[] args = new string[1];
                //args[0] = "P000001";
                object result = WsCaller.InvokeWebService(url, "HelloWorld", null);
                this.textBox1.Text = result.ToString();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
         调用成功，返回值均可看到结果:HelloWorld!

本文来自优快云博客，转载请标明出处：http://blog.youkuaiyun.com/zhoen/archive/2009/08/06/4419862.aspx

转载于:https://www.cnblogs.com/Memory/archive/2010/01/25/1655811.html