动态调用WebService 【原创+整理】

来源：互联网发布：作死知乎编辑：程序博客网时间：2024/05/17 09:00

动态调用WebService 类

using System;
using System.Collections.Generic;
using System.Text;
using System.Web.Services.Description;
using System.Xml.Serialization;
using System.Net;
using System.CodeDom;
using System.CodeDom.Compiler;
using System.Reflection;
using System.IO;

namespace XYH.Common
{
    public class WebServiceClass
    {
        private Log log = new Log(AppDomain.CurrentDomain.BaseDirectory + @"/up.txt");

        public Object GetWebServiceObje(params string[] msgInfos)
        {
            try
            {
                WebClient client = new WebClient();
                //这个地址在Config文件里面，这里取出来就行了.在原地址后面加上： ?WSDL
                String url = ConfigManager.GetValue("WebServiceUrl");
                Stream stream = client.OpenRead(url);
                ServiceDescription description = ServiceDescription.Read(stream);
                //创建客户端代理代理类。
                ServiceDescriptionImporter importer = new ServiceDescriptionImporter();
                //指定访问协议。
                importer.ProtocolName = "Soap";
                //生成客户端代理。
                importer.Style = ServiceDescriptionImportStyle.Client;
                importer.CodeGenerationOptions = CodeGenerationOptions.GenerateProperties | CodeGenerationOptions.GenerateNewAsync;
                //添加WSDL文档。
                importer.AddServiceDescription(description, null, null);
                //命名空间
                CodeNamespace nmspace = new CodeNamespace();
                // 写在配置文件里
                nmspace.Name = ConfigManager.GetValue("Namespace");
                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;
                //输出程序集的名称，在配置文件中配置
                string outDllName = ConfigManager.GetValue("OutDllName");
                parameter.OutputAssembly = outDllName;
                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
                    log.log("动态调用webService错误：" + result.Errors.ToString());
                }
                //加载前面生成的程序集
                Assembly asm = Assembly.LoadFrom(outDllName);
                string webServiceClassName = ConfigManager.GetValue("WebServiceClassName");
                Type typeObj = asm.GetType(webServiceClassName);
                object obj = Activator.CreateInstance(typeObj);
                int count = msgInfos.Length;
                object[] objParams = new object[count];
                int i = 0;
                foreach (string str in msgInfos)
                {
                    objParams[i] = (object)str;
                    i++;
                    log.log("参数"+i+": "+str);
                }
                /// 从配置文件获取方法名称
                string methodName = ConfigManager.GetValue("WebServiceMethodName");
                object objResult = typeObj.InvokeMember(methodName, BindingFlags.Default | BindingFlags.InvokeMethod, null, obj, objParams);
                if (objResult == null)
                    log.log("调用失败");
                log.log("调用成功" + objResult.ToString());
                return objResult;
            }
            catch (Exception ex)
            {
                log.log("异常错误：" + ex.ToString());
            }
            return null;
        }
    }
}

配置文件