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  • C# .Net动态调用webService实现思路及代码

    加载:

    using System; 
    using System.Collections.Generic; 
    using System.Linq; 
    using System.Web; 
    using System.Net; 
    using System.IO; 
    using System.Web.Services.Description; 
    using System.CodeDom; 
    using Microsoft.CSharp; 
    using System.CodeDom.Compiler; 
    using System.Reflection; 
    namespace HTTPS 
    { 
    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]; 
    } 
    } 
    } 
    View Code

    调用:

    string url = "http://webservice.webxml.com.cn/WebServices/TrainTimeWebService.asmx"; 
    string[] args = new string[2]; 
    args[0] = "k123"; 
    args[1] = ""; 
    object result = WSHelper.InvokeWebService(url, "getDetailInfoByTrainCode", args); 
    DataSet ds = (DataSet)result; 
    this.GridView1.DataSource = ds; 
    this.GridView1.DataBind(); 
    View Code
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  • 原文地址:https://www.cnblogs.com/tianciliangen/p/6495725.html
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