动态调用webservice(部分转载)

动态调用webservice,做个笔记：

public class WSHelper
    {
        /// < summary>           
        /// 动态调用web服务         
        /// < /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, 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, 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 (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);
                // 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];
        }
    }

需要在web.config中添加webservice的地址。

<add key="ConnetionHisExist" value="http://10.10.99.8:8808/HisIsExist.asmx"/>
<!--<add key="ConnetionUrlMsg" value="http://10.10.99.8:8082/MessageApi.asmx"/>-->
<add key="ConnetionUrlMsg" value="http://112.74.203.57:8000/MessageApi.asmx"/>

动态调用方式:

1、取得webconfig中的webservice的值

string MsgWebServiceurl = ConfigurationManager.AppSettings["ConnetionUrlMsg"].ToString();//取得webconfig中webservice值

2、组建字符串数组，访问

string strxml = "<?xml version="1.0" encoding="utf-8" ?>" +
"<data>" +
"<OrderNo>" + dt.Rows[0]["order_no"].ToString() + "</OrderNo>" +
"<MerBillNo>" + dt.Rows[0]["merchant_billno"].ToString() + "</MerBillNo>" +
"<RefundMethod>" + "02" + "</RefundMethod>" +
"<Amount>" + dt.Rows[0]["real_cost"].ToString() + "</Amount>" +
"<OperUser>" + dt.Rows[0]["oper_user"].ToString() + "</OperUser>" +
"<TermNo>" + dt.Rows[0]["termno"].ToString() + "</TermNo>" +
"<HisRefundNo>" + dt.Rows[0]["merchant_billno"].ToString() + "</HisRefundNo>" +
"<HisNo>" + dt.Rows[0]["merchant_billno"].ToString() + "</HisNo>" +
"<ChannelTransNo>" + dt.Rows[0]["tran_no"].ToString() + "</ChannelTransNo>" +
"<PayAppSource>" + dt.Rows[0]["payappcode"].ToString() + "</PayAppSource>" +
"<PaySourceCode>" + dt.Rows[0]["paysourcecode"].ToString() + "</PaySourceCode>" +
"<Flushes>" + "1" + "</Flushes>" +//0-退款 1-冲正
"<SignType>" + "01" + "</SignType>" +
"<SignData>" + SignData + "</SignData>" +
"</data>";



string[] argsMsg = new string[3];//组建字符串数组
argsMsg[0] = "F000105";//访问类型
argsMsg[1] = strxml;//入参
argsMsg[2] = "xml";//返回类型 xml ,json
object Msgresult = WSHelper.InvokeWebService(MsgWebServiceurl, "MuPayInterface", argsMsg);

3、接下来对返回的object转化为字符串，然后解析这个字符串xml。

4、调用其他入参不是xml类型的

string isExistWebServiceurl = ConfigurationManager.AppSettings["ConnetionHisExist"].ToString();//取得webconfig中webservice值

string[] args = new string[1];
args[0] = tran_no;

object result = WSHelper.InvokeWebService(isExistWebServiceurl, "HisExistsOrNot", args);

返回的result是一个int类型，进行转换后，即可用了。