动态调用WebService方法

C#动态调用WebService

object item = InvokeWebService(this._webServicesUrl, "HelloWorld", new object[] { "参数" });

public static object InvokeWebService(string url, string methodname, object[] args)
{
return InvokeWebService(url, null, methodname, args);
}

public static object InvokeWebService(string url, string classname, string methodname, object[] args)
{
string @namespace = "ServiceBase.WebService.DynamicWebLoad";
if (classname == null || classname == "")
{
classname = GetClassName(url.Replace("?wsdl", ""));
}
//获取服务描述语言(WSDL)
WebClient wc = new WebClient();
Stream stream = wc.OpenRead(url);
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);
Microsoft.CSharp.CSharpCodeProvider csc = new Microsoft.CSharp.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);

System.Reflection.MethodInfo mt = t.GetMethod("set_Url");
mt.Invoke(obj, new object[] { url });
object result;
try
{
result = mi.Invoke(obj, args);
}
catch (Exception ex)
{
result = ex.InnerException;
}
return result;
}

private static string GetClassName(string url)
{
string[] parts = url.Split('/');
string[] pps = parts[parts.Length - 1].Split('.');
return pps[0];
}

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以上为网上参考,谢谢