WebService WSDL动态访问

  1 using System;
  2 using System.CodeDom;
  3 using System.CodeDom.Compiler;
  4 using System.IO;
  5 using System.Linq;
  6 using System.Net;
  7 using System.Reflection;
  8 using System.Text;
  9 using System.Web.Services.Description;
 10 using Microsoft.CSharp;
 11 
 12 /// <summary>
 13 ///动态链接web server
 14 /// </summary>
 15 public class WebServiceInvoke
 16 {
 17     public WebServiceInvoke()
 18     {
 19         //
 20         //TODO: 在此处添加构造函数逻辑
 21         //
 22     }
 23 
 24     /// <summary>
 25     /// 调用web 服务
 26     /// </summary>
 27     /// <param name="url">webServer url</param>
 28     /// <param name="className">web Server ClassName</param>
 29     /// <param name="methodName">web Server methodName</param>
 30     /// <param name="parameters">method parameter</param>
 31     /// <returns>retValue</returns>
 32     public object InvokeWebService(string url,string className,string methodName,object[] parameters)
 33     {
 34         //1. 从目标 URL 下载 WSDL 数据。
 35         //2. 使用 ServiceDescription 创建和格式化 WSDL 文档文件。
 36         //3. 使用 ServiceDescriptionImporter 创建客户端代理类。
 37         //4. 使用 CodeDom 动态创建客户端代理类程序集。
 38         //5. 利用反射调用相关 WebService 方法。
 39 
 40         string @namespace = "EnterpriseServerBase.WebService.DynamicWebCalling";
 41         if (string.IsNullOrEmpty(className))
 42             className = GetClassName(url);
 43 
 44         try
 45         {
 46             //获取WSDL数据
 47             WebClient webClient = new WebClient();
 48             Stream stream= webClient.OpenRead(url + "?WSDL");
 49             ServiceDescription sDescription = ServiceDescription.Read(stream);
 50             ServiceDescriptionImporter sDescriptionImporter = new ServiceDescriptionImporter();
 51             sDescriptionImporter.AddServiceDescription(sDescription, "", "");
 52 
 53             //生成客户端代理类代码
 54             CodeNamespace codeNamespace = new CodeNamespace(@namespace);
 55             CodeCompileUnit codeCompileUnit = new CodeCompileUnit();
 56             codeCompileUnit.Namespaces.Add(codeNamespace);
 57             sDescriptionImporter.Import(codeNamespace, codeCompileUnit);
 58 
 59             //设定编译参数
 60             CompilerParameters compilerList = new CompilerParameters 
 61             {
 62                 GenerateExecutable=false,
 63                 GenerateInMemory=true
 64             };
 65             compilerList.ReferencedAssemblies.Add("System.dll");
 66             compilerList.ReferencedAssemblies.Add("System.XML.dll");
 67             compilerList.ReferencedAssemblies.Add("System.Web.Services.dll");
 68             compilerList.ReferencedAssemblies.Add("System.Data.dll");
 69 
 70             //编译代理类
 71             CSharpCodeProvider csharpCodeProvider = new CSharpCodeProvider();
 72             CompilerResults compilerResult = csharpCodeProvider.CompileAssemblyFromDom(compilerList, codeCompileUnit);
 73             if (compilerResult.Errors.HasErrors == true)
 74             {
 75                 StringBuilder errorSb = new StringBuilder();
 76                 foreach (var item in compilerResult.Errors)
 77                 {
 78                     errorSb.Append(item.ToString());
 79                     errorSb.Append(System.Environment.NewLine);
 80                 }
 81                 throw new Exception(errorSb.ToString());
 82             }
 83 
 84             //生成代理实例，调用方法
 85             Assembly assembly = compilerResult.CompiledAssembly;
 86             Type t = assembly.GetType(@namespace + "." + className, true, true);
 87             object obj = Activator.CreateInstance(t);
 88             MethodInfo methodInfo = t.GetMethod(methodName);
 89             var retValue= methodInfo.Invoke(obj, parameters);
 90             return retValue;
 91         }
 92         catch (Exception ex)
 93         {
 94             throw new Exception(ex.InnerException.Message, new Exception(ex.InnerException.StackTrace));
 95         }
 96     }
 97 
 98     /// <summary>
 99     /// 获取ClassName
100     /// </summary>
101     /// <param name="url">web Server url</param>
102     /// <returns>className</returns>
103     private string GetClassName(string url)
104     {
105         string[] urlArray = url.Split(‘/‘);
106         return urlArray[urlArray.Count() - 1].Split(‘.‘)[0];
107     }
108 }

1   WebServiceInvokewi = new WebServiceInvoke();
2             byte[] byteArray = System.Text.Encoding.Default.GetBytes(XML);
3             object[] parameters = { byteArray, "0" };
4             wi.InvokeWebService(url_to, "DisService", "ImpLes", parameters);