c# 动态调用.net编写的webservices接口

<span style="font-family:Verdana, Arial, Helvetica, sans-serif;font-size:14px;color:#333333;font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; line-height: 25.2px; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; display: inline !important; float: none; background-color: rgb(255, 255, 255);">创建类WebServiceHelper：</span>

public class WebServiceHelper
{
#region 动态调用WebService动态调用地址
/// < 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 WebServiceHelper.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">服务接口类名</param>
/// <param name="methodname">方法名</param>
/// <param name="args">参数值</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 = WebServiceHelper.GetWsClassName(url);
}
try
{

//获取WSDL
WebClient wc = new WebClient();
Stream stream = wc.OpenRead(url + "?WSDL");
ServiceDescription sd = ServiceDescription.Read(stream);
//注意classname一定要赋值获取
classname = sd.Services[0].Name;

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);

}
catch (Exception ex)
{
throw new Exception(ex.InnerException.Message, new Exception(ex.InnerException.StackTrace));
// return "Error:WebService调用错误！" + ex.Message;
}
}
private static string GetWsClassName(string wsUrl)
{
string[] parts = wsUrl.Split('/');
string[] pps = parts[parts.Length - 1].Split('.');
return pps[0];
}
#endregion
}
}

调用操作：

/// <summary>
/// 调用操作
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button1_Click(object sender, EventArgs e)
{
#region 动态调用 webservices地址
try
{

object[] args = new object[3];
args[0] = ("参数一");
args[1] = ("参数二");
args[2] = ("参数三");

object result = WebServiceHelper.InvokeWebService("http://112.160.100.110:8000/Service1.asmx", "服务方法：send_message", args);
string message = result.ToString();

}

catch { }
#endregion
}
原文地址：http://www.cnblogs.com/Warmsunshine/p/3813551.html