using System;
using System.Collections.Generic;
using System.Net;
using System.IO;
using System.Web.Services.Description;
using System.CodeDom;
using System.CodeDom.Compiler;
using Microsoft.CSharp;
using System.Collections;
using System.Web;
namespace Wicresoft.ITSG.Components.Utilities
{
/// <summary>
/// 调用WebService帮助类
/// </summary>
public class WebServiceHelper
{
/// <summary>
/// 动态调用web服务
/// </summary>
/// <param name="url"></param>
/// <param name="methodname"></param>
/// <param name="args"></param>
/// <returns></returns>
public static object InvokeWebService(string url, string methodname, object[] args)
{
return InvokeWebService(url, null, methodname, args);
}
#region 原方法
/// <summary>
/// 动态调用web服务
/// </summary>
/// <param name="url">>WSDL服务地址</param>
/// <param name="classname"></param>
/// <param name="methodname">方法名</param>
/// <param name="args">参数</param>
/// <returns></returns>
public static object InvokeWebService(string url, string classname, string methodname, object[] args)
{
string @namespace = "EnterpriseServerBase.WebService.DynamicWebCalling";
if ((classname == null) || (classname == ""))
{
classname = GetWsClassName(url);
}
WebClient wc = null;
Stream stream = null;
CSharpCodeProvider csc = null;
try
{
//获取WSDL
wc = new WebClient();
stream = wc.OpenRead(url + "?WSDL");
ServiceDescription sd = ServiceDescription.Read(stream);
ServiceDescriptionImporter sdi = new ServiceDescriptionImporter();
sdi.AddServiceDescription(sd, "", "");
CodeNamespace cn = new CodeNamespace(@namespace);
//生成客户端代理类代码
CodeCompileUnit ccu = new CodeCompileUnit();
ccu.Namespaces.Add(cn);
sdi.Import(cn, ccu);
//设定编译参数
csc = new CSharpCodeProvider();
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 = csc.CompileAssemblyFromDom(cplist, ccu);
if (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 t = assembly.GetType(@namespace + "." + classname, true, true);
object obj = Activator.CreateInstance(t);
System.Reflection.MethodInfo mi = t.GetMethod(methodname);
return mi.Invoke(obj, args);
}
catch (Exception ex)
{
throw new Exception(ex.InnerException.Message, new Exception(ex.InnerException.StackTrace));
}
finally //最后要释放资源
{
if (stream != null)
{
stream.Close();
//stream.Dispose();
}
if (wc != null)
{
wc.Dispose();
}
if (csc != null)
{
csc.Dispose();
}
}
}
#endregion
private static string GetWsClassName(string wsUrl)
{
string className = null;
if (!String.IsNullOrEmpty(wsUrl))
{
int startIndex = wsUrl.LastIndexOf('/') + 1;
if (startIndex > 0)
{
className = wsUrl.Substring(startIndex).Split('.')[0];
}
}
return className;
}
#region sso专用方法
/// <summary>
/// 动态调用web服务
/// </summary>
/// <param name="url"></param>
/// <param name="classname"></param>
/// <param name="methodname"></param>
/// <param name="args"></param>
/// <param name="dllCacheHours"></param>
/// <returns></returns>
public static object InvokeSSO_WebService(string url, string Dllname, string methodname, object[] args, int dllCacheHours)
{
string @namespace = "EnterpriseServerBase.WebService.DynamicWebCalling";
string classname = GetWsClassName(url);
System.Web.Caching.Cache myAssemblyCache = HttpContext.Current.Cache;
//初始缓存信息
if (myAssemblyCache["AssemblyCache"] == null)
{
myAssemblyCache.Insert("AssemblyCache", new Hashtable(), null, DateTime.Now.AddHours(dllCacheHours), TimeSpan.Zero);
if (myAssemblyCache["AssemblyCache"] == null)
{
//防配置失效
myAssemblyCache.Insert("AssemblyCache", new Hashtable(), null, DateTime.Now.AddHours(24), TimeSpan.Zero);
}
}
//取得缓存
Hashtable myHS = (Hashtable)myAssemblyCache["AssemblyCache"];
WebClient wc = null;
Stream stream = null;
CSharpCodeProvider csc = null;
ServiceDescription sd = null;
ServiceDescriptionImporter sdi = null;
CodeNamespace cn = null;
CodeCompileUnit ccu = null;
CompilerParameters cplist = null;
CompilerResults cr = null;
System.Reflection.Assembly assembly = null;
System.Reflection.MethodInfo mi = null;
try
{
//没缓存重新生成
if (!myHS.ContainsKey(Dllname))
{
//获取WSDL
wc = new WebClient();
stream = wc.OpenRead(url + "?WSDL");
sd = ServiceDescription.Read(stream);
sdi = new ServiceDescriptionImporter();
sdi.AddServiceDescription(sd, "", "");
cn = new CodeNamespace(@namespace);
//生成客户端代理类代码
ccu = new CodeCompileUnit();
ccu.Namespaces.Add(cn);
sdi.Import(cn, ccu);
//设定编译参数
csc = new CSharpCodeProvider();
cplist = new CompilerParameters();
cplist.GenerateExecutable = false;
cplist.GenerateInMemory = true;
//cplist.OutputAssembly = Dllname;
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
cr = csc.CompileAssemblyFromDom(cplist, ccu);
if (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
assembly = cr.CompiledAssembly;
//记录缓存
myHS.Add(Dllname, assembly);
Wicresoft.ITSG.Components.Utilities.LogUtility.CreateLogManager().Debug("DLL记缓存:" + System.DateTime.Now.ToString("yyyy-MM-dd HH:mm") + "*" + myHS.Count.ToString() + "*" + Dllname);
}
assembly = (System.Reflection.Assembly)myHS[Dllname];
Wicresoft.ITSG.Components.Utilities.LogUtility.CreateLogManager().Debug("DLL取缓存:" + System.DateTime.Now.ToString("yyyy-MM-dd HH:mm") + "*" + Dllname);
//assembly = System.Reflection.Assembly.LoadFrom(@"C:inetpubwwwrootwssVirtualDirectories80in" + Dllname);
Type t = assembly.GetType(@namespace + "." + classname, true, true);
object obj = Activator.CreateInstance(t);
mi = t.GetMethod(methodname);
return mi.Invoke(obj, args);
}
catch (Exception ex)
{
throw new Exception(ex.InnerException.Message, new Exception(ex.InnerException.StackTrace));
}
finally
{
if (stream != null)
{
stream.Close();
//stream.Dispose();
}
if (wc != null)
{
wc.Dispose();
}
if (csc != null)
{
csc.Dispose();
}
if (sd != null)
{
sd = null;
}
if (sdi != null)
{
sdi = null;
}
if (cn != null)
{
cn = null;
}
ccu = null;
cplist = null;
cr = null;
mi = null;
}
}
#endregion
}
}