C#动态调用带有SoapHeader验证的WebServices

来源：互联网发布：一白遮三丑知乎编辑：程序博客网时间：2024/05/19 14:36

本文记录C#中通过反射动态的调用带有SoapHeader验证的WebServices服务，基于 Windows8.1、Visual Studio 2013、IIS8 环境实现。
关于WebService创建、部署及静态调用等内容，可以见：C#静态调用带有SoapHeader验证的WebServices。

创建动态调用类

创建一个客户端控制台程序，并新建类DynamicInvokeService.cs , 文件内容如下：

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Net;using System.IO;using System.Web.Services.Description;using System.CodeDom;using Microsoft.CSharp;using System.CodeDom.Compiler;using System.Reflection;namespace DynamicInvoke{    /// <summary>    /// Web Service服务类    /// </summary>    public class WSHelper    {        /// < summary>         /// 动态调用web服务 （不含有SoapHeader）        /// < /summary>         /// < param name="url">WSDL服务地址< /param>         /// < param name="methodname">方法名< /param>         /// < param name="args">参数< /param>         /// < returns>< /returns>         public static object InvokeWebService(string url, string methodname, object[] args)        {            return WSHelper.InvokeWebService(url, null, methodname, null, args);        }        /// <summary>        /// 动态调用web服务（含有SoapHeader）        /// </summary>        /// <param name="url"></param>        /// <param name="methodname"></param>        /// <param name="soapHeader"></param>        /// <param name="args"></param>        /// <returns></returns>        public static object InvokeWebService(string url, string methodname, SoapHeader soapHeader, object[] args)        {            return WSHelper.InvokeWebService(url, null, methodname, soapHeader, args);        }        /// < summary>         /// 动态调用web服务         /// < /summary>         /// < param name="url">WSDL服务地址< /param>         /// < param name="classname">类名< /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, SoapHeader soapHeader, object[] args)        {            string @namespace = "EnterpriseServerBase.WebService.DynamicWebCalling";            if ((classname == null) || (classname == ""))            {                classname = WSHelper.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 icc = 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 = icc.CompileAssemblyFromDom(cplist, ccu);                if (cr.Errors.HasErrors)                {                    System.Text.StringBuilder sb = new System.Text.StringBuilder();                    foreach (System.CodeDom.Compiler.CompilerError ce in cr.Errors)                    {http://localhost:38076/Properties/                        sb.Append(ce.ToString());                        sb.Append(System.Environment.NewLine);                    }                    throw new Exception(sb.ToString());                }                //保存生产的代理类，默认是保存在bin目录下面                  TextWriter writer = File.CreateText("MyWebServices.cs");                icc.GenerateCodeFromCompileUnit(ccu, writer, null);                writer.Flush();                writer.Close();                 //生成代理实例                 System.Reflection.Assembly assembly = cr.CompiledAssembly;                Type t = assembly.GetType(@namespace + "." + classname, true, true);                object obj = Activator.CreateInstance(t);                #region 设置SoapHeader                FieldInfo client = null;                object clientkey = null;                if (soapHeader != null)                {                    client = t.GetField(soapHeader.ClassName + "Value");                    //获取客户端验证对象    soap类                      Type typeClient = assembly.GetType(@namespace + "." + soapHeader.ClassName);                    //为验证对象赋值  soap实例                        clientkey = Activator.CreateInstance(typeClient);                    //遍历属性                      foreach (KeyValuePair<string, object> property in soapHeader.Properties)                    {                        typeClient.GetField(property.Key).SetValue(clientkey, property.Value);                        // typeClient.GetProperty(property.Key).SetValue(clientkey, property.Value, null);                      }                }                #endregion                if (soapHeader != null)                {                    //设置Soap头                      client.SetValue(obj, clientkey);                    //pro.SetValue(obj, soapHeader, null);                  }                //调用指定的方法                System.Reflection.MethodInfo mi = t.GetMethod(methodname);                //方法名错误（找不到方法），给出提示                if (null == mi)                {                    return "方法名不存在，请检查方法名是否正确！";                }                return mi.Invoke(obj, args);                // PropertyInfo propertyInfo = type.GetProperty(propertyname);                 //return propertyInfo.GetValue(obj, null);             }            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];        }        /// <summary>          /// 构建SOAP头，用于SoapHeader验证          /// </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);            }        }      }}

注意代码中有如下代码：

    //保存生产的代理类，默认是保存在bin目录下面      TextWriter writer = File.CreateText("MyWebServices.cs");    icc.GenerateCodeFromCompileUnit(ccu, writer, null);    writer.Flush();    writer.Close();

此代码可以保存生成的代理类，可以在工程目录下的bin目录下查看文件。

测试端代码

using System;using System.Collections.Generic;using System.Linq;using System.Text;namespace DynamicInvokeService{    class Program    {        static void Main(string[] args)        {            string url = "http://192.168.1.109:81/WebService1.asmx";            //string url = "http://192.168.1.109:82/WebService2.asmx";            Dictionary<string, object> properties = new Dictionary<string, object>();            properties.Add("UserName", "admin");            properties.Add("PassWord", "admin123");            DynamicInvoke.WSHelper.SoapHeader soapHeader = new DynamicInvoke.WSHelper.SoapHeader("MySoapHeader", properties);            Object obj1 = DynamicInvoke.WSHelper.InvokeWebService(url, "HelloWorld", null);            Object obj2 = DynamicInvoke.WSHelper.InvokeWebService(url, "HelloWorld", soapHeader, null);            Object obj3 = DynamicInvoke.WSHelper.InvokeWebService(url, "getNum", new Object[] { 1, 2 });            Object obj4 = DynamicInvoke.WSHelper.InvokeWebService(url, "getNum", soapHeader, new Object[] { 1, 2 });            Object obj5 = DynamicInvoke.WSHelper.InvokeWebService(url, "getList", null);            Object obj6 = DynamicInvoke.WSHelper.InvokeWebService(url, "getList", soapHeader, null);            Console.WriteLine("无SoapHeader调用HelloWorld：" + obj1);            Console.WriteLine("有SoapHeader调用HelloWorld：" + obj2);            Console.WriteLine("无SoapHeader调用getNum：" + obj3);            Console.WriteLine("有SoapHeader调用getNum：" + obj4);            Console.WriteLine("无SoapHeader调用无验证方法getList：" + obj5.GetType().IsArray);            Console.WriteLine("有SoapHeader调用无验证方法getList：" + obj6);            Console.ReadKey();        }    }}

运行后测试结果显示如下：

动态调用运行结果

源码：C#动态调用带有SoapHeader验证的WebServices

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