WCF简单示例

工程结构：

注意三个项目都需要引用System.ServiceModel以及System.Runtime.Serialization。

CommonLib工程：

1     [ServiceContract]//, ServiceKnownType(typeof(User))]
2     public interface  IMyObject
3     {
4         [OperationContract]
5         int Add(int x, int y);
6         [OperationContract]//, ServiceKnownType(typeof(User))]
7         User GetInstance();
8     }

IMyObject

WCF接口需要添加ServiceContract特性，方法需要添加OperationContract。

User类是需要传输的数据类型

 1     [DataContract]
 2     public class User
 3     {
 4         private string _name;
 5         private int _age;
 6         public User(string name, int age)
 7         {
 8             _name = name;
 9             _age = age;
10         }
11         [DataMember]
12         public string Name
13         {
14             get { return _name; }
15             set { _name = value; }
16         }
17         [DataMember]
18         public int Age
19         {
20             get { return _age; }
21             set { _age = value; }
22         }
23     }

User.cs

类特性添加DataContract，需要暴露的属性添加特性：DataMember，注意属性需要实现Get，Set方法，缺一不可。

Server工程：

 1     [ServiceBehaviorAttribute(IncludeExceptionDetailInFaults = true)]
 2     class MyObject:IMyObject
 3     {
 4         User _student;
 5         public int Add(int x, int y)
 6         {
 7             return x + y;
 8         }
 9
10         public User GetInstance()
11         {
12             if (_student == null)
13                 _student = new User("Jashon Han", 26);
14             return _student;
15         }
16     }

MyObject.cs

IMyObject接口的实现。

 1   class Program
 2     {
 3         static void Main(string[] args)
 4         {
 5             try
 6             {
 7                 Console.WriteLine("Start my service!");
 8                 Uri baseAddress = new Uri("net.tcp://localhost:8011/MyService");
 9                 ServiceHost host = new ServiceHost(typeof(MyObject), baseAddress);
10
11                 ServiceMetadataBehavior smb = new ServiceMetadataBehavior();
12
13                 host.Description.Behaviors.Add(smb);
14
15                 host.AddServiceEndpoint(typeof(IMetadataExchange), MetadataExchangeBindings.CreateMexTcpBinding(), "mex");
16                 host.AddServiceEndpoint(typeof(IMyObject), new NetTcpBinding() { MaxReceivedMessageSize = 2147483647, ReaderQuotas = new System.Xml.XmlDictionaryReaderQuotas() { MaxArrayLength = 2147483647 } }, baseAddress);
17
18                 host.Open();
19                 Console.WriteLine("The service is ready.");
20                 Console.WriteLine("Press <ENTER> to terminate service.");
21                 Console.WriteLine();
22             }
23             catch (Exception ex)
24             { Console.WriteLine(ex); }
25
26             Console.ReadLine();
27
28         }
29     }

Program.cs

MaxReceivedMessageSize属性和MaxArrayLength是设定传输数据大小，如果没有特别需求，默认就好。

Client 工程：

 1     class Program
 2     {
 3         static void Main(string[] args)
 4         {
 5             System.ServiceModel.NetTcpBinding binding = new System.ServiceModel.NetTcpBinding() { MaxReceivedMessageSize = 2147483647 };
 6             binding.ReaderQuotas = new System.Xml.XmlDictionaryReaderQuotas() { MaxArrayLength = 2147483647 };
 7             System.ServiceModel.ChannelFactory<IMyObject> factory = new System.ServiceModel.ChannelFactory<IMyObject>(binding, new System.ServiceModel.EndpointAddress("net.tcp://localhost:8011/MyService"));
 8             IMyObject test = factory.CreateChannel();
 9             var result = test.Add(12, 13);
10             var student = test.GetInstance();
11             Console.WriteLine("Student Name:{0},Age{1}", student.Name, student.Age);
12             Console.WriteLine(result);
13             Console.ReadKey();
14
15         }
16     }

Program.cs

以上服务的绑定等操作都是通过代码实现，也可以通过配置文件实现。