public static object InvokeWebService(string url, string className, string methodName, object[] args)
{
const string nameSpace = "ChaYeFeng.WebService.DynamicWebCalling";
if (string.IsNullOrEmpty(className))
{
className = WebServiceHelper.GetWsClassName(url);
}
try
{
//获取wsdl
WebClient wc = new WebClient();
Stream stream = wc.OpenRead(url + "?WSDL");
ServiceDescription sd = ServiceDescription.Read(stream);
ServiceDescriptionImporter sdi = new ServiceDescriptionImporter();
sdi.AddServiceDescription(sd, "", "");
CodeNamespace cn = new CodeNamespace(nameSpace);
//生成客户端代理代码
CodeCompileUnit ccu = new CodeCompileUnit();
ccu.Namespaces.Add(cn);
sdi.Import(cn, ccu);
CSharpCodeProvider cscp = new CSharpCodeProvider();
//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 = cscp.CompileAssemblyFromDom(cplist, ccu);
if (cr.Errors.HasErrors == true)
{
StringBuilder sb = new StringBuilder();
foreach (CompilerError error in cr.Errors)
{
sb.Append(error.ToString());
sb.Append(Environment.NewLine);
}
throw new Exception(sb.ToString());
}
//生成代理实例
Assembly assembly = cr.CompiledAssembly;
Type t = assembly.GetType(nameSpace + "." + className, true, false);
object obj = Activator.CreateInstance(t);
MethodInfo mi = t.GetMethod(methodName);
//调用方法并返回结果
return(mi.Invoke(obj, args));
}
catch (Exception ex)
{
throw new Exception(ex.InnerException.Message, new Exception(ex.InnerException.StackTrace));
}
}
public static object InvokeWebService(string url, string methodName, object[] args)
{
return(WebServiceHelper.InvokeWebService(url, null, methodName, args));
}
