/// <summary>
/// InvokeWebService 动态调用web服务
/// </summary>
public static object InvokeWebService(string wsUrl, string classname, string methodname, object[] args)
{
try
{
Type wsProxyType = WebServiceHelper.GetWsProxyType(wsUrl, classname);
object obj = Activator.CreateInstance(wsProxyType);
MethodInfo mi = wsProxyType.GetMethod(methodname);
return(mi.Invoke(obj, args));
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// GetWsProxyType 获取目标Web服务对应的代理类型
/// </summary>
/// <param name="wsUrl">目标Web服务的url</param>
/// <param name="classname">Web服务的class名称，如果不需要指定，则传入null</param>
public static Type GetWsProxyType(string wsUrl, string classname)
{
string @namespace = "ESBasic.WebService.DynamicWebCalling";
if ((classname == null) || (classname == ""))
{
classname = WebServiceHelper.GetWsClassName(wsUrl);
}
string cacheKey = wsUrl + "@" + classname;
if (WebServiceHelper.WSProxyTypeDictionary.ContainsKey(cacheKey))
{
return(WebServiceHelper.WSProxyTypeDictionary[cacheKey]);
}
//获取WSDL
WebClient wc = new WebClient();
Stream stream = wc.OpenRead(wsUrl + "?WSDL");
ServiceDescription sd = ServiceDescription.Read(stream);
ServiceDescriptionImporter sdi = new ServiceDescriptionImporter();
sdi.AddServiceDescription(sd, "", "");
CodeNamespace cn = new CodeNamespace(@namespace);
//生成客户端代理类代码
CodeCompileUnit ccu = new CodeCompileUnit();
ccu.Namespaces.Add(cn);
sdi.Import(cn, ccu);
CSharpCodeProvider csc = new CSharpCodeProvider();
ICodeCompiler icc = csc.CreateCompiler();
//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 = icc.CompileAssemblyFromDom(cplist, ccu);
if (true == cr.Errors.HasErrors)
{
System.Text.StringBuilder sb = new System.Text.StringBuilder();
foreach (System.CodeDom.Compiler.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[] ts = assembly.GetTypes();
Type wsProxyType = assembly.GetType(@namespace + "." + classname, true, true);
lock (WebServiceHelper.WSProxyTypeDictionary)
{
if (!WebServiceHelper.WSProxyTypeDictionary.ContainsKey(cacheKey))
{
WebServiceHelper.WSProxyTypeDictionary.Add(cacheKey, wsProxyType);
}
}
return(wsProxyType);
}
/// <summary>
/// InvokeWebService 动态调用web服务
/// </summary>
/// <param name="wsUrl">WebService 地址</param>
/// <param name="methodname">方法名</param>
/// <param name="args">参数，仅仅支持简单类型</param>
public static object InvokeWebService(string wsUrl, string methodname, object[] args)
{
return(WebServiceHelper.InvokeWebService(wsUrl, null, methodname, args));
}