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87 lines
3.5 KiB
87 lines
3.5 KiB
using Microsoft.CSharp;
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using System;
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using System.CodeDom;
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using System.CodeDom.Compiler;
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using System.Net;
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using System.Text;
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using System.Web.Services.Description;
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namespace EasyBL
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{
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public class WebServiceUtil
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{
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/// <summary>
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/// 实例化WebServices
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/// </summary>
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/// <param name="url">WebServices地址</param>
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/// <param name="methodname">调用的方法</param>
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/// <param name="args">把webservices里需要的参数按顺序放到这个object[]里</param>
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public static object InvokeWebService(string url, string methodname, object[] args)
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{
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//这里的namespace是需引用的webservices的命名空间，在这里是写死的，大家可以加一个参数从外面传进来。
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var @namespace = "client";
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try
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{
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//获取WSDL
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using (var wc = new WebClient())
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{
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var stream = wc.OpenRead(url + "?WSDL");
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var sd = ServiceDescription.Read(stream);
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var classname = sd.Services[0].Name;
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var sdi = new ServiceDescriptionImporter();
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sdi.AddServiceDescription(sd, "", "");
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var cn = new CodeNamespace(@namespace);
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//生成客户端代理类代码
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var ccu = new CodeCompileUnit();
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ccu.Namespaces.Add(cn);
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sdi.Import(cn, ccu);
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using (var csc = new CSharpCodeProvider())
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{
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#pragma warning disable CS0618 // 类型或成员已过时
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var icc = csc.CreateCompiler();
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#pragma warning restore CS0618 // 类型或成员已过时
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//设定编译参数
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#pragma warning disable IDE0017 // 简化对象初始化
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var cplist = new CompilerParameters
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{
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#pragma warning restore IDE0017 // 简化对象初始化
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GenerateExecutable = false,
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GenerateInMemory = true
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};
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cplist.ReferencedAssemblies.Add("System.dll");
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cplist.ReferencedAssemblies.Add("System.XML.dll");
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cplist.ReferencedAssemblies.Add("System.Web.Services.dll");
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cplist.ReferencedAssemblies.Add("System.Data.dll");
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//编译代理类
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var cr = icc.CompileAssemblyFromDom(cplist, ccu);
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if (cr.Errors.HasErrors)
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{
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var sb = new StringBuilder();
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foreach (CompilerError ce in cr.Errors)
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{
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sb.Append(ce.ToString());
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sb.Append(Environment.NewLine);
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}
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throw new Exception(sb.ToString());
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}
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//生成代理实例，并调用方法
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var assembly = cr.CompiledAssembly;
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var t = assembly.GetType(@namespace + "." + classname, true, true);
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var obj = Activator.CreateInstance(t);
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var mi = t.GetMethod(methodname);
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return mi.Invoke(obj, args);
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}
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}
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}
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catch
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{
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return null;
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}
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}
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}
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}
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