动态添加web引用

link这篇文章,本来是我写在csdn上的
http://blog.csdn.net/yangang0201/archive/2007/08/23/1756320.aspx


项目:xx  之 手工派单

内容介绍:/Files/yanchanggang/BOCO.APP.Common.DynWSCall.DynWSCallLib.rar

在本系统中，考虑到各个大区emos系统提供的鉴权服务 webserverce的地址不同,因此,不可能在系统中 把wsdl路径设定死,需要可以动态的引用wsdl.幸好,公司同事给了个dll,满足了该功能.

dll 文件:

Code
[ClassInterface(ClassInterfaceType.AutoDual)]
public class DynWebService : IDisposable
{
    // Fields
    private Assembly assembly = null;
    private const string defNameSpace = "BOCO.APP.Common.DynWSCallDefaultNameSpace";
    private string nameSpace = "BOCO.APP.Common.DynWSCallDefaultNameSpace";

    // Methods
    public bool Binding(string url, string keyFile, ClassInterfaceType intfType)
    {
        if (url.ToLower().EndsWith(".dll"))
        {
            this.assembly = Assembly.LoadFile(url);
            return true;
        }
        string wsdlUrl = url;
        CompilerResults results = this.CompilerCSharp(wsdlUrl, keyFile, intfType, false);
        if (results == null)
        {
            return false;
        }
        if (results.Errors.HasErrors)
        {
            StringBuilder builder = new StringBuilder();
            foreach (CompilerError error in results.Errors)
            {
                builder.Append(error.ToString());
                builder.Append(Environment.NewLine);
            }
            throw new Exception(builder.ToString());
        }
        this.assembly = results.CompiledAssembly;
        return true;
    }

    public DynWSClassBinding BindingClass(string className)
    {
        if (this.assembly == null)
        {
            throw new Exception("请先绑定Web服务。");
        }
        DynWSClassBinding binding = new DynWSClassBinding();
        string str = this.FormatClassName(className);
        if (binding.BindingClass(this.assembly, str))
        {
            return binding;
        }
        return null;
    }

    public DynWSMethodBinding BindingMethod(string className, string methodName)
    {
        if (this.assembly == null)
        {
            throw new Exception("请先绑定Web服务。");
        }
        string str = "";
        if ((className == null) || (className.Length == 0))
        {
            str = this.FindClassNameByMethoadName(methodName);
        }
        else
        {
            str = this.FormatClassName(className);
        }
        DynWSClassBinding binding = this.BindingClass(str);
        if (binding == null)
        {
            return null;
        }
        return binding.BindingMethod(methodName);
    }

    public CompilerResults CompilerCSharp(string wsdlUrl, string keyFile, ClassInterfaceType intfType, bool generateInMemory)
    {
        CodeCompileUnit compilationUnit = this.GeneratorCodeUnit(wsdlUrl, keyFile, intfType);
        if (compilationUnit == null)
        {
            return null;
        }
        ICodeCompiler compiler = new CSharpCodeProvider().CreateCompiler();
        CompilerParameters options = new CompilerParameters();
        options.GenerateExecutable = false;
        options.GenerateInMemory = generateInMemory;
        options.ReferencedAssemblies.Add("System.dll");
        options.ReferencedAssemblies.Add("System.XML.dll");
        options.ReferencedAssemblies.Add("System.Web.Services.dll");
        options.ReferencedAssemblies.Add("System.Data.dll");
        return compiler.CompileAssemblyFromDom(options, compilationUnit);
    }

    public void Dispose()
    {
        Assembly assembly = this.assembly;
    }

    public string FindClassNameByMethoadName(string methodName)
    {
        foreach (Type type in this.assembly.GetExportedTypes())
        {
            if (type.IsSubclassOf(typeof(SoapHttpClientProtocol)))
            {
                MethodInfo method = null;
                try
                {
                    method = type.GetMethod(methodName);
                }
                catch (Exception exception)
                {
                    throw new Exception(string.Format("从{0}查找方法{1}异常：{2}", type.FullName, methodName, exception.Message));
                }
                if (method != null)
                {
                    return type.FullName;
                }
            }
        }
        return "";
    }

    private string FormatClassName(string cls)
    {
        if (cls.Length == 0)
        {
            return this.GetFirstClassName();
        }
        if ((this.nameSpace.Length > 0) && !cls.StartsWith(this.nameSpace))
        {
            cls = this.nameSpace + "." + cls;
        }
        return cls;
    }

    private string FormatWSDLUrl(string url)
    {
        string str = url.ToLower();
        if (!str.StartsWith("http:"))
        {
            return url;
        }
        if (str.EndsWith("?wsdl"))
        {
            return url;
        }
        return (url + "?WSDL");
    }

    private CodeCompileUnit GeneratorCodeUnit(string wsdlUrl, string keyFile, ClassInterfaceType intfType)
    {
        if (this.nameSpace.Length == 0)
        {
            this.nameSpace = "BOCO.APP.Common.DynWSCallDefaultNameSpace";
        }
        WebClient client = new WebClient();
        ServiceDescription description = ServiceDescription.Read(client.OpenRead(this.FormatWSDLUrl(wsdlUrl)));
        ServiceDescriptionImporter importer = new ServiceDescriptionImporter();
        importer.AddServiceDescription(description, "", "");
        CodeCompileUnit unit = new CodeCompileUnit();
        if ((keyFile != null) && (keyFile.Length > 0))
        {
            unit.AssemblyCustomAttributes.Add(new CodeAttributeDeclaration("System.Reflection.AssemblyKeyFile", new CodeAttributeArgument[] { new CodeAttributeArgument(new CodePrimitiveExpression(keyFile)) }));
            unit.AssemblyCustomAttributes.Add(new CodeAttributeDeclaration("System.Reflection.AssemblyKeyName", new CodeAttributeArgument[] { new CodeAttributeArgument(new CodePrimitiveExpression("")) }));
        }
        CodeNamespace namespace2 = new CodeNamespace(this.nameSpace);
        unit.Namespaces.Add(namespace2);
        importer.Import(namespace2, unit);
        if (intfType != ClassInterfaceType.None)
        {
            foreach (CodeNamespace namespace3 in unit.Namespaces)
            {
                foreach (CodeTypeDeclaration declaration in namespace3.Types)
                {
                    declaration.CustomAttributes.Insert(0, new CodeAttributeDeclaration("System.Runtime.InteropServices.ClassInterfaceAttribute", new CodeAttributeArgument[] { new CodeAttributeArgument(new CodePrimitiveExpression((int) intfType)) }));
                }
            }
        }
        return unit;
    }

    public bool GeneratorCSharpCode(string wsdlUrl, string keyFile, ClassInterfaceType intfType, out string code)
    {
       code = null;
        CodeCompileUnit e = this.GeneratorCodeUnit(wsdlUrl, keyFile, intfType);
        if (e == null)
        {
            return false;
        }
        new CSharpCodeProvider();
        ICodeGenerator generator = new CSharpCodeProvider().CreateGenerator();
        CodeGeneratorOptions o = new CodeGeneratorOptions();
        o.BlankLinesBetweenMembers = true;
        o.BracingStyle = "C";
        o.ElseOnClosing = false;
        o.IndentString = "    ";
        StringBuilder sb = new StringBuilder();
        StringWriter w = new StringWriter(sb);
        generator.GenerateCodeFromCompileUnit(e, w, o);
        code = sb.ToString();
        w.Close();
        return true;
    }

    public string GetFirstClassName()
    {
        foreach (Type type in this.assembly.GetExportedTypes())
        {
            if (type.IsSubclassOf(typeof(SoapHttpClientProtocol)))
            {
                return type.FullName;
            }
        }
        return "";
    }

    // Properties
    public string NameSpace
    {
        get
        {
            return this.nameSpace;
        }
        set
        {
            if ((value != null) && (value.Length > 0))
            {
                this.nameSpace = value;
            }
            else
            {
                this.nameSpace = "";
            }
        }
    }
}

 
[ClassInterface(ClassInterfaceType.AutoDual)]
public class DynWSClassBinding : IDisposable
{
    // Fields
    private Assembly assembly = null;
    private string className = "";
    private object classObject = null;
    private SoapHttpClientProtocol classObjectSoapHttpClient = null;
    private Type classType = null;

    // Methods
    public bool BindingClass(Assembly assembly, string className)
    {
        this.assembly = assembly;
        this.className = className;
        this.classType = this.assembly.GetType(this.className, true, true);
        this.classObject = Activator.CreateInstance(this.classType);
        try
        {
            this.classObjectSoapHttpClient = this.classObject as SoapHttpClientProtocol;
        }
        catch
        {
        }
        return true;
    }

    public DynWSMethodBinding BindingMethod(string methodName)
    {
        if ((this.assembly == null) || (this.classObject == null))
        {
            throw new Exception("请先绑定类。");
        }
        DynWSMethodBinding binding = new DynWSMethodBinding();
        if (binding.BindingMethod(this, methodName))
        {
            return binding;
        }
        return null;
    }

    public void Dispose()
    {
        if (this.classObjectSoapHttpClient != null)
        {
            this.classObjectSoapHttpClient.Dispose();
        }
    }

    public object GetFieldValue(string attName)
    {
        if (this.classObject == null)
        {
            throw new Exception("请先绑定类。");
        }
        try
        {
            return this.classType.InvokeMember(attName, BindingFlags.GetProperty, null, this.classObject, new object[0]);
        }
        catch
        {
            return this.classType.InvokeMember(attName, BindingFlags.GetField, null, this.classObject, new object[0]);
        }
    }

    public bool SetFieldValue(string attName, object attValue)
    {
        if (this.classObject == null)
        {
            throw new Exception("请先绑定类。");
        }
        try
        {
            this.classType.InvokeMember(attName, BindingFlags.SetProperty, null, this.classObject, new object[] { attValue });
        }
        catch
        {
            this.classType.InvokeMember(attName, BindingFlags.SetField, null, this.classObject, new object[] { attValue });
        }
        return true;
    }

    // Properties
    public Assembly Assembly
    {
        get
        {
            return this.assembly;
        }
    }

    public string ClassName
    {
        get
        {
            return this.className;
        }
    }

    public object ClassObject
    {
        get
        {
            return this.classObject;
        }
    }

    public Type ClassType
    {
        get
        {
            return this.classType;
        }
    }

    public string Url
    {
        get
        {
            return this.GetFieldValue("Url").ToString();
        }
        set
        {
            this.SetFieldValue("Url", value);
        }
    }
}

 
 [ClassInterface(ClassInterfaceType.AutoDual)]
public class DynWSMethodBinding : IDisposable
{
    // Fields
    private DynWSClassBinding classBinding = null;
    private MethodInfo methodInfo = null;
    private string methodName = "";
    private ParameterInfo[] methodParams = null;
    private object[] methodParamsValue = null;

    // Methods
    public bool BindingMethod(DynWSClassBinding classBND, string methodName)
    {
        this.classBinding = classBND;
        this.methodName = methodName;
        this.methodInfo = this.classBinding.ClassType.GetMethod(this.methodName);
        if (this.methodInfo != null)
        {
            this.methodParams = this.methodInfo.GetParameters();
            this.methodParamsValue = new object[this.methodParams.Length];
            return true;
        }
        return false;
    }

    public void ClearParamsValue()
    {
        this.methodParamsValue = new object[this.methodParams.Length];
    }

    public void Dispose()
    {
        if (this.classBinding != null)
        {
            this.classBinding.Dispose();
        }
    }

    private int GetParamIndex(string paramName)
    {
        if (this.methodParams != null)
        {
            foreach (ParameterInfo info in this.methodParams)
            {
                if (info.Name.ToLower() == paramName.ToLower())
                {
                    return info.Position;
                }
            }
        }
        return -1;
    }

    public ParameterInfo GetParamInfo(string paramName)
    {
        foreach (ParameterInfo info in this.methodParams)
        {
            if (info.Name.ToLower() == paramName.ToLower())
            {
                return info;
            }
        }
        return null;
    }

    public string GetParamInfoString()
    {
        StringBuilder builder = new StringBuilder();
        if (this.methodParams != null)
        {
            int num = 0;
            foreach (ParameterInfo info in this.methodParams)
            {
                object obj2 = (this.methodParamsValue != null) ? this.methodParamsValue[info.Position] : null;
                string str = (obj2 == null) ? "<null>" : obj2.ToString();
                builder.Append(string.Format("序号：{0}/{1} 参数：{2} 值：{3} 类型：{4} ", new object[] { num++, info.Position, info.Name, str, info.ParameterType }));
            }
        }
        return builder.ToString();
    }

    public object Invoke()
    {
        return this.methodInfo.Invoke(this.classBinding.ClassObject, this.methodParamsValue);
    }

    public bool SetParamValue(string paramName, object paramValue)
    {
        try
        {
            object obj2 = null;
            foreach (ParameterInfo info in this.methodParams)
            {
                if (info.Name.ToLower() == paramName.ToLower())
                {
                    obj2 = Convert.ChangeType(paramValue, info.ParameterType);
                    this.methodParamsValue[info.Position] = obj2;
                    return true;
                }
            }
            return false;
        }
        catch
        {
            return false;
        }
    }

    // Properties
    public DynWSClassBinding ClassBinding
   {
        get
        {
            return this.classBinding;
        }
    }

    public MethodInfo MethodInfo
    {
        get
        {
            return this.methodInfo;
        }
    }

    public string MethodName
    {
        get
        {
            return this.methodName;
        }
    }

    public ParameterInfo[] Params
    {
        get
        {
            return this.methodParams;
        }
    }

    public object[] ParamValues
    {
        get
        {
            return this.methodParamsValue;
        }
    }
}

 

使用介绍:

Code
使用介绍:

 

 public bool CheckUser(string strUName, string strPwd)
        {
            try
            {
                DynWebService ws = new DynWebService();
                ws.Binding(WSDLUrl, "", System.Runtime.InteropServices.ClassInterfaceType.None);
                DynWSClassBinding cls = ws.BindingClass("");
                cls.Url = Url;
                DynWSMethodBinding method = cls.BindingMethod("eomsAuthentication");
                method.SetParamValue("serSupplier", "");
                method.SetParamValue("serCaller", "");
                method.SetParamValue("callerPwd", "");
                //pMethod->SetParamValue(_bstr_t("serSupplier"),_variant_t((LPCTSTR)CGlobal::GetAppSetting("Supplier")));
                //pMethod->SetParamValue(_bstr_t("serCaller"),_variant_t((LPCTSTR)CGlobal::GetAppSetting("Caller")));
                //CString strCallerPwd = (LPCTSTR)CGlobal::GetAppSetting("CallerPwd");
                //strCallerPwd = CEnc::DecodeAndAutoCheck(strCallerPwd);
                string callTime = DateTime.Now.ToString("yyyy-mm-hh HH:MM:SS");
                method.SetParamValue("callTime", callTime);
                method.SetParamValue("userName", strUName);
                method.SetParamValue("userPassword", strPwd);

                object ret = method.Invoke();
                string sret = ret == null ? "" : ret.ToString();
                if (sret.Length == 0)
                {
                    return true;
                }
                else
                {
                    throw new Exception("登录失败：" + sret);
                }
            }
            catch
            {
                return false;
            }
        }