• 动态调用webservice 接口


    1.url:http://localhost:8002/名称.asmx(asmx结尾)

    2.需要引用的命名空间:System.Web.Services

    3.调用代码:

    public class DynamicWebService
        {
            
            /// <summary>
            /// 动态调用WebService
            /// </summary>
            /// <param name="url">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 InvokeWebService(url, null, methodname, args);
            }
            /// <summary>
            /// 动态调用WebService
            /// </summary>
            /// <param name="url">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);
                }
                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 = csc.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));
                }
            }
    
            private static string GetWsClassName(string wsUrl)
            {
                string[] parts = wsUrl.Split('/');
                string[] pps = parts[parts.Length - 1].Split('.');
    
                return pps[0];
            }
        }//end

    3.调用示例:

    string url = "http://localhost:8002/方法.asmx";
    string[] args = new string[2];
    args[0] = "123";
    object result = DynamicWebService.InvokeWebService(url, "方法名", args);
    欢迎指正:haizi2014@qq.com
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  • 原文地址:https://www.cnblogs.com/hcfan/p/4910676.html
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