动态调用webservices

服务端：

using System; using System.Web; using System.Web.Services; using System.Web.Services.Protocols; using System.Collections.Generic; [WebService(Namespace = "http://tempuri.org/")] [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)] public class Service : System.Web.Services.WebService { public Service () { //如果使用设计的组件，请取消注释以下行 //InitializeComponent(); } [WebMethod] public string HelloWorld() { return "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; } } ?

客户端：

using System; using System.IO; using System.Collections.Generic; //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 DynmicWebSev { class Program { static void Main(string[] args) { WebClient client = new WebClient(); //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 String url = "http://localhost:4371/mysev/Service.asmx?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 = "mysev"; 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 } //加载前面生成的程序集 Assembly asm = Assembly.LoadFrom("MyTest.dll"); Type t = asm.GetType("mysev.Service"); object o = Activator.CreateInstance(t); //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 MethodInfo method = t.GetMethod("GetPersons"); 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 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(); Console.ReadLine(); } } } ?