using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Net;
using System.IO;
using System.Web.Services.Description;
using System.CodeDom;
using Microsoft.CSharp;
using System.CodeDom.Compiler;
namespace Winning.Tjgl.ExternalInterface
{
public static class WebServiceHelper
{
#region InvokeWebService
//动态调用web服务
public static object InvokeWebService(string url, string methodname, object[] args)
{
return WebServiceHelper.InvokeWebService(url, null, methodname, args);
}
public static object InvokeWebService(string url, string classname, string methodname, object[] args)
{
string @namespace = "EnterpriseServerBase.WebService.DynamicWebCalling";
if ((classname == null) || (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 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));
}
}
/// <summary>
/// 调用WebService 包含SoapHeader
/// </summary>
/// <param name="wsUrl">WebService地址</param>
/// <param name="classname">类名</param>
/// <param name="methodName">方法名称</param>
/// <param name="soapHeader">SOAP头</param>
/// <param name="args">参数列表</param>
/// <returns>返回调用结果</returns>
public static object InvokeWebService(string wsUrl, string className, string methodName, SoapHeader soapHeader, object[] args)
{
string @namespace = "EnterpriseServerBase.WebService.DynamicWebCalling";
if ((className == null) || (className == ""))
{
className = GetWsClassName(wsUrl);
}
try
{
//获取WSDL
WebClient wc = new WebClient();
Stream stream = wc.OpenRead(wsUrl + "?wsdl");
System.Web.Services.Description.ServiceDescription sd = System.Web.Services.Description.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 t = assembly.GetType(@namespace + "." + className, true, true);
FieldInfo[] arry = t.GetFields();
FieldInfo client = null;
object clientkey = null;
if (soapHeader != null)
{
//Soap头开始
client = t.GetField(soapHeader.ClassName + "Value");
//获取客户端验证对象
Type typeClient = assembly.GetType(@namespace + "." + soapHeader.ClassName);
//为验证对象赋值
clientkey = Activator.CreateInstance(typeClient);
foreach (KeyValuePair<string, object> property in soapHeader.Properties)
{
typeClient.GetField(property.Key).SetValue(clientkey, property.Value);
}
//Soap头结束
}
//实例类型对象
object obj = Activator.CreateInstance(t);
if (soapHeader != null)
{
//设置Soap头
client.SetValue(obj, clientkey);
}
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));
}
}
private static string GetWsClassName(string wsUrl)
{
string[] parts = wsUrl.Split('/');
string[] pps = parts[parts.Length - 1].Split('.');
return pps[0];
}
#endregion
#region SOAP头
/// <summary>
/// SOAP头
/// </summary>
public class SoapHeader
{
/// <summary>
/// 构造一个SOAP头
/// </summary>
public SoapHeader()
{
this.Properties = new Dictionary<string, object>();
}
/// <summary>
/// 构造一个SOAP头
/// </summary>
/// <param name="className">SOAP头的类名</param>
public SoapHeader(string className)
{
this.ClassName = className;
this.Properties = new Dictionary<string, object>();
}
/// <summary>
/// 构造一个SOAP头
/// </summary>
/// <param name="className">SOAP头的类名</param>
/// <param name="properties">SOAP头的类属性名及属性值</param>
public SoapHeader(string className, Dictionary<string, object> properties)
{
this.ClassName = className;
this.Properties = properties;
}
/// <summary>
/// SOAP头的类名
/// </summary>
public string ClassName { get; set; }
/// <summary>
/// SOAP头的类属性名及属性值
/// </summary>
public Dictionary<string, object> Properties { get; set; }
/// <summary>
/// 为SOAP头增加一个属性及值
/// </summary>
/// <param name="name">SOAP头的类属性名</param>
/// <param name="value">SOAP头的类属性值</param>
public void AddProperty(string name, object value)
{
if (this.Properties == null)
{
this.Properties = new Dictionary<string, object>();
}
Properties.Add(name, value);
}
}
#endregion
//调用方法
/*
WebServiceHelper.SoapHeader header = new WebServiceHelper.SoapHeader("Variable");
header.AddProperty("UserName", "aa");
header.AddProperty("Password", "bb");
object r = WebServiceHelper.InvokeWebService(
"http://localhost:2996/WebService1.asmx",
"HelloWorld",
header,
null);*/
}
}
