WCF之服务说明

实质：服务说明实质上就是服务相关的一些信息。

１．服务端代码添加了如下黄色代码：

 1 class Program
 2     {
 3         static void Main(string[] args)
 4         {
 5             //创建一个ServiceHost
 6             using (ServiceHost serviceHost = new ServiceHost(typeof(CalculatorService)))
 7             {
 8                 // Open the ServiceHost to create listeners
 9                 serviceHost.Open();
10                 Console.WriteLine("服务已经开启！");
11                 Console.WriteLine("按回车键结束服务！");
12                 Console.WriteLine();
13                 Console.ReadLine();
14             }
15         }
16 
17     }
18     [ServiceContract]//定义服务协定完成
19     public interface ICalculator
20     {
21         [OperationContract]
22         double Add(double n1, double n2);
23         [OperationContract]
24         double Subtract(double n1, double n2);
25         [OperationContract]
26         double Multiply(double n1, double n2);
27         [OperationContract]
28         double Divide(double n1, double n2);
29     }
30 
31     [ServiceContract]
32     public interface ICalculatorSession
33     {
34         [OperationContract]
35         string test(string s);
36 
37         [OperationContract]
38         string GetServiceDescriptionInfo();
39     }
40 
41     public class CalculatorService : ICalculator, ICalculatorSession
42     {
43         public double Add(double n1, double n2)
44         {
45             return n1 + n2;
46         }
47 
48         public double Subtract(double n1, double n2)
49         {
50             return n1 - n2;
51         }
52 
53         public double Multiply(double n1, double n2)
54         {
55             return n1 * n2;
56         }
57 
58         public double Divide(double n1, double n2)
59         {
60             return n1 / n2;
61         }
62 
63         public string test(string s)
64         {
65             return s;
66         }
67 
68         public string GetServiceDescriptionInfo()
69         {
70             StringBuilder sb = new StringBuilder();
71             OperationContext operationContext = OperationContext.Current;
72             ServiceHost serviceHost = (ServiceHost)operationContext.Host;
73             ServiceDescription dec = serviceHost.Description;
74             sb.Append("Base addresses:
");
75             foreach (Uri url in serviceHost.BaseAddresses)
76             {
77                 sb.Append(" " + url + "
");
78             }
79             sb.Append("Service endpoint:
");
80             foreach (ServiceEndpoint endPoint in dec.Endpoints)
81             {
82                 sb.Append("Address:" + endPoint.Address + "
");
83                 sb.Append("Binding:" + endPoint.Binding + "
");
84                 sb.Append("Contract:" + endPoint.Contract + "
");
85             }
86 
87             return sb.ToString();
88         }
89     }

２．客户端和服务端的配置可前面随笔中的配置

３．客户端的代码：

 1  class Program
 2     {
 3         static void Main(string[] args)
 4         {
 5             CalculatorClient client = new CalculatorClient("secure");
 6             double n1 = 5.6;
 7             double n2 = 7.3;
 8             double result;
 9 
10             result = client.Add(n2,n1);           
11             Console.WriteLine("执行加法后的结果为：{0}", result.ToString());
12 
13             result = client.Subtract(n2, n1);
14             Console.WriteLine("执行减法后的结果为：{0}", result.ToString());
15 
16             result = client.Multiply(n1, n2);
17             Console.WriteLine("执行乘法后的结果为：{0}", result.ToString());
18 
19             result = client.Divide(n1, n2);
20             Console.WriteLine("执行除法后的结果为：{0}", result.ToString());
21 
22             CalculatorSessionClient clientSeesion = new CalculatorSessionClient();
23             string s = clientSeesion.test("你好我做一个测试！");
24             string b = clientSeesion.GetServiceDescriptionInfo();
25             Console.WriteLine(s);
26             Console.WriteLine(b);
27             Console.ReadLine();
28 
29         }
30     }

４．运行结果如下图：