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  • 动态调用webservice

    public class WebServiceHelper
    {
    /// <summary>
    /// 动态调用WebService
    /// </summary>
    /// <param name="url">WebService地址</param>
    /// <param name="methodname">方法名(模块名)</param>
    /// <param name="args">参数列表,无参数为null</param>
    /// <returns>object</returns>
    public static object InvokeWebService(string url, string methodname, object[] args)
    {
    return InvokeWebService(url, null, methodname, args);
    }
    /// <summary>
    /// 动态调用WebService
    /// </summary>
    /// <param name="url">WebService地址</param>
    /// <param name="classname">类名</param>
    /// <param name="methodname">方法名(模块名)</param>
    /// <param name="args">参数列表</param>
    /// <returns>object</returns>
    public static object InvokeWebService(string url, string classname, string methodname, object[] args)
    {
    string @namespace = "webservice";
    if (classname == null || classname == "")
    {
    classname = WebServiceHelper.GetClassName(url);
    }
    //获取服务描述语言(WSDL)
    WebClient wc = new WebClient();
    Stream stream = wc.OpenRead(url);
    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();
    //设定编译器的参数
    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 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);

    }
    private static string GetClassName(string url)
    {
    //假如URL为"http://localhost/InvokeService/Service1.asmx"
    //最终的返回值为 Service1
    string[] parts = url.Split('/');
    string[] pps = parts[parts.Length - 1].Split('.');
    return pps[0];
    }
    }

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  • 原文地址:https://www.cnblogs.com/AbelAngelo/p/13391591.html
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