webservice 调用天气 用代理类的方式 

 1 class WebServiceHelper
 2     {
 3         /// <summary>
 4         /// 动态调用WebService
 5         /// </summary>
 6         /// <param name="url">WebService地址</param>
 7         /// <param name="methodname">方法名(模块名)</param>
 8         /// <param name="args">参数列表,无参数为null</param>
 9         /// <returns>object</returns>
10         public static object InvokeWebService(string url, string methodname, object[] args)
11         {
12             return InvokeWebService(url, null, methodname, args);
13         }
14         /// <summary>
15         /// 动态调用WebService
16         /// </summary>
17         /// <param name="url">WebService地址</param>
18         /// <param name="classname">类名</param>
19         /// <param name="methodname">方法名(模块名)</param>
20         /// <param name="args">参数列表</param>
21         /// <returns>object</returns>
22         public static object InvokeWebService(string url, string classname, string methodname, object[] args)
23         {
24             string @namespace = "fangqm.Netbank.WebService.webservice";
25             if (classname == null || classname == "")
26             {
27                 classname = WebServiceHelper.GetClassName(url);
28             }
29             //获取服务描述语言(WSDL)
30             WebClient wc = new WebClient();
31             Stream stream = wc.OpenRead(url + "?WSDL");//【1】
32             System.Web.Services.Description.ServiceDescription sd = System.Web.Services.Description.ServiceDescription.Read(stream);//【2】
33             ServiceDescriptionImporter sdi = new ServiceDescriptionImporter();//【3】
34             sdi.AddServiceDescription(sd, "", "");
35             CodeNamespace cn = new CodeNamespace(@namespace);//【4】
36                                                              //生成客户端代理类代码
37             CodeCompileUnit ccu = new CodeCompileUnit();//【5】
38             ccu.Namespaces.Add(cn);
39             sdi.Import(cn, ccu);
40             CSharpCodeProvider csc = new CSharpCodeProvider();//【6】
41             ICodeCompiler icc = csc.CreateCompiler();//【7】
42                                                      //设定编译器的参数
43             CompilerParameters cplist = new CompilerParameters();//【8】
44             cplist.GenerateExecutable = false;
45             cplist.GenerateInMemory = true;
46             cplist.ReferencedAssemblies.Add("System.dll");
47             cplist.ReferencedAssemblies.Add("System.XML.dll");
48             cplist.ReferencedAssemblies.Add("System.Web.Services.dll");
49             cplist.ReferencedAssemblies.Add("System.Data.dll");
50             //编译代理类
51             CompilerResults cr = icc.CompileAssemblyFromDom(cplist, ccu);//【9】
52             if (true == cr.Errors.HasErrors)
53             {
54                 System.Text.StringBuilder sb = new StringBuilder();
55                 foreach (CompilerError ce in cr.Errors)
56                 {
57                     sb.Append(ce.ToString());
58                     sb.Append(System.Environment.NewLine);
59                 }
60                 throw new Exception(sb.ToString());
61             }
62 
63             //生成代理实例,并调用方法
64             System.Reflection.Assembly assembly = cr.CompiledAssembly;
65             Type t = assembly.GetType(@namespace + "." + classname, true, true);
66             object bj = Activator.CreateInstance(t);//【10】
67             System.Reflection.MethodInfo mi = t.GetMethod(methodname);//【11】
68             return mi.Invoke(bj, args);
69 
70         }
71         private static string GetClassName(string url)
72         {
73             //假如URL为"http://localhost/InvokeService/Service1.asmx"
74             //最终的返回值为 Service1
75             string[] parts = url.Split('/');
76             string[] pps = parts[parts.Length - 1].Split('.');
77             return pps[0];
78         }
79     }

下面是调用

 1 string url = "http://www.webxml.com.cn/WebServices/WeatherWebService.asmx";
 2 string[] array = new string[1];
 3 array[0] = city.Replace("市", "");
 4 object tresult = WebServiceHelper.InvokeWebService(url, "getWeatherbyCityName", array);
 5 string[] result = (string[])tresult;
 6 if (result[8] == "")
 7 {
 8    content = result[0] + result[6];
 9 }
10 else
11 {
12   //对应的天气图片  天气区间  晴  当前气温  城市名称
13   int startIndex = result[10].IndexOf("气温：");
14   int endIndex = result[10].IndexOf("℃");
15   string currentDegree = result[10].Substring(startIndex + 3, endIndex - startIndex - 3);
16   content = result[8] + "&&" + result[5] + "&&" + result[6].Split(' ')[1] + "&&" + currentDegree + "&&" + city;
17 }

声明转载自 https://www.cnblogs.com/MrZivChu/p/webservice.html

posted on 2019-04-06 21:53  WINSH  阅读(76)  评论(0)    收藏  举报

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