using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Net;
using System.CodeDom;
using System.CodeDom.Compiler;
using System.Web.Services.Description;
using Microsoft.CSharp;
using System.Reflection;
namespace VionDataHandler
{
public static class WebServiceHelper
{
/// <summary>
/// 動態調用WebService
/// </summary>
/// <param name="url">WebService地址</param>
/// <param name="methodname">方法名(模塊名)</param>
/// <param name="args">參數列表,無參數爲null</param>
/// <returns>object</returns>
public static object InvokeWebService(string url, string methodname, object[] args)
{
return InvokeWebService(url, null, methodname, args);
}
/// <summary>
/// 動態調用WebService
/// </summary>
/// <param name="url">WebService地址</param>
/// <param name="classname">類名</param>
/// <param name="methodname">方法名(模塊名)</param>
/// <param name="args">參數列表</param>
/// <returns>object</returns>
public static object InvokeWebService(string url, string classname, string methodname, object[] args)
{
string @namespace = "EnterpriseServerBase.WebService.DynamicWebCalling";
if (classname == null || classname == "")
{
classname = WebServiceHelper.GetClassName(url);
}
//獲取服務描述語言(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);
//生成客戶端代理類代碼
CodeCompileUnit ccu = new CodeCompileUnit();
ccu.Namespaces.Add(cn);
sdi.Import(cn, ccu);
CSharpCodeProvider csc = new CSharpCodeProvider();//【6】
ICodeCompiler icc = csc.CreateCompiler();//【7】
//設定編譯器的參數
CompilerParameters cplist = new CompilerParameters();//【8】
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");
//編譯代理類
CompilerResults cr = icc.CompileAssemblyFromDom(cplist, ccu);//【9】
////生成代理實例,並調用方法
//System.Reflection.Assembly assembly1 = cr.CompiledAssembly;
////ExcMsg.WriteLog("----------獲取所有的類與方法信息--------" + "。" + "(正常執行!)");
//Type[] allTypes = assembly.GetTypes();
//foreach (Type type in allTypes)
//{
// //ExcMsg.WriteLog("--類:" + type.FullName);
// MethodInfo[] methods = type.GetMethods();
// foreach (MethodInfo info in methods)
// {
// //ExcMsg.WriteLog(string.Format("----方法:{0}", info.Name));
// }
//}
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());
}
//生成代理實例,並調用方法
System.Reflection.Assembly assembly = cr.CompiledAssembly;
//Type[] allTypes = assembly.GetTypes();
//foreach (Type type in allTypes)
//{
// //ExcMsg.WriteLog("--類:" + type.FullName);
// MethodInfo[] methods = type.GetMethods();
// foreach (MethodInfo info in methods)
// {
// //ExcMsg.WriteLog(string.Format("----方法:{0}", info.Name));
// }
//}
Type t = assembly.GetType(@namespace + "." + classname, true, true);
object obj = Activator.CreateInstance(t);//【10】
MethodInfo mi = t.GetMethod(methodname);//【11】
//getRegionCountry
return mi.Invoke(obj, args);
}
private static string GetClassName(string url)
{
string[] parts = url.Split('/');
string[] pps = parts[parts.Length - 1].Split('.');
return pps[0];
}
}
}