1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Text;
5 using System.ServiceModel;
6 using System.ServiceModel.Channels;
7 using System.Net;
8 using System.Web.Services.Description;
9 using System.CodeDom;
10 using Microsoft.CSharp;
11 using System.CodeDom.Compiler;
12 using System.IO;
13
14 namespace Common
15 {
16 public class WebServiceHelper
17 {
18 #region 动态调用WebService动态调用地址
19 /// < summary>
20 /// 动态调用web服务
21 /// < /summary>
22 /// < param name="url">WSDL服务地址< /param>
23 /// < param name="methodname">方法名< /param>
24 /// < param name="args">参数< /param>
25 /// < returns>< /returns>
26 public static object InvokeWebService(string url, string methodname, object[] args)
27 {
28 return WebServiceHelper.InvokeWebService(url, null, methodname, args);
29 }
30 /// <summary>
31 /// 动态调用web服务
32 /// </summary>
33 /// <param name="url">WSDL服务地址</param>
34 /// <param name="classname">服务接口类名</param>
35 /// <param name="methodname">方法名</param>
36 /// <param name="args">参数值</param>
37 /// <returns></returns>
38 public static object InvokeWebService(string url, string classname, string methodname, object[] args)
39 {
40
41 string @namespace = "EnterpriseServerBase.WebService.DynamicWebCalling";
42 if ((classname == null) || (classname == ""))
43 {
44 classname = WebServiceHelper.GetWsClassName(url);
45 }
46 try
47 {
48
49 //获取WSDL
50 WebClient wc = new WebClient();
51 Stream stream = wc.OpenRead(url + "?wsdl");
52 ServiceDescription sd = ServiceDescription.Read(stream);
53 //注意classname一定要赋值获取
54 classname = sd.Services[0].Name;
55
56 ServiceDescriptionImporter sdi = new ServiceDescriptionImporter();
57 sdi.AddServiceDescription(sd, "", "");
58 CodeNamespace cn = new CodeNamespace(@namespace);
59
60 //生成客户端代理类代码
61 CodeCompileUnit ccu = new CodeCompileUnit();
62 ccu.Namespaces.Add(cn);
63 sdi.Import(cn, ccu);
64 CSharpCodeProvider icc = new CSharpCodeProvider();
65
66
67 //设定编译参数
68 CompilerParameters cplist = new CompilerParameters
69 {
70 GenerateExecutable = false,
71 GenerateInMemory = true
72 };
73 cplist.ReferencedAssemblies.Add("System.dll");
74 cplist.ReferencedAssemblies.Add("System.XML.dll");
75 cplist.ReferencedAssemblies.Add("System.Web.Services.dll");
76 cplist.ReferencedAssemblies.Add("System.Data.dll");
77 //编译代理类
78 CompilerResults cr = icc.CompileAssemblyFromDom(cplist, ccu);
79 if (true == cr.Errors.HasErrors)
80 {
81 System.Text.StringBuilder sb = new System.Text.StringBuilder();
82 foreach (System.CodeDom.Compiler.CompilerError ce in cr.Errors)
83 {
84 sb.Append(ce.ToString());
85 sb.Append(System.Environment.NewLine);
86 }
87 throw new Exception(sb.ToString());
88 }
89 //生成代理实例，并调用方法
90 System.Reflection.Assembly assembly = cr.CompiledAssembly;
91 Type t = assembly.GetType(@namespace + "." + classname, true, true);
92 object obj = Activator.CreateInstance(t);
93 System.Reflection.MethodInfo mi = t.GetMethod(methodname);
94 return mi.Invoke(obj, args);
95
96 }
97 catch (Exception ex)
98 {
99 //throw new Exception(ex.InnerException.Message, new Exception(ex.InnerException.StackTrace));
100 return "Error:WebService调用错误！" + ex.Message;
101 }
102 }
103 private static string GetWsClassName(string wsUrl)
104 {
105 string[] parts = wsUrl.Split('/');
106 string[] pps = parts[parts.Length - 1].Split('.');
107 return pps[0];
108 }
109 #endregion
110 }
111 }
