Wcf 基础编程

1.设计服务协定 比较好的方法是接口来定义服务的协定

 

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Runtime.Serialization;
 5 using System.ServiceModel;
 6 using System.Text;
 7 
 8 namespace WcfService2
 9 {
10     [ServiceContract]   //服务协定定义
11 
12     public interface IInterface1
13     {
14         [OperationContract]  //要公开的服务方法
15         string Function1(int value);
16 
17     }
18     [ServiceContract]  //定义的第二个服务协定 
19     public interface IService1
20     {
21 
22         [OperationContract]
23         string GetData(int value);
24 
25         [OperationContract]
26         CompositeType GetDataUsingDataContract(CompositeType composite);
27 
28         // TODO: Add your service operations here
29     }
30 
31 
32     [DataContract]   //数据协定 定义
33     public class CompositeType
34     {
35         bool boolValue = true;
36         string stringValue = "Hello ";
37 
38         [DataMember]
39         public bool BoolValue
40         {
41             get { return boolValue; }
42             set { boolValue = value; }
43         }
44 
45         [DataMember]
46         public string StringValue
47         {
48             get { return stringValue; }
49             set { stringValue = value; }
50         }
51     }
52 }

2.实现服务协定  也就是用类实现已定义好的接口

 

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Runtime.Serialization;
 5 using System.ServiceModel;
 6 using System.Text;
 7 
 8 namespace WcfService2
 9 {
10     public class Service1 : IService1,IInterface1
11     {
12         public string GetData(int value)
13         {
14             return string.Format("You entered: {0}", value);
15         }
16 
17         public CompositeType GetDataUsingDataContract(CompositeType composite)
18         {
19             if (composite.BoolValue)
20             {
21                 composite.StringValue += "Suffix";
22             }
23             return composite;
24         }
25 
26         public string Function1(int a)
27         {
28             return "hello world!";
29         }
30     }
31 }

3.承载服务的实现 实现服务的宿主

a.用windowform 实现的宿主

 

 1 using System;
 2 using System.Collections.Generic;
 3 using System.ComponentModel;
 4 using System.Data;
 5 using System.Drawing;
 6 using System.Linq;
 7 using System.Text;
 8 using System.Windows.Forms;
 9 using WcfService2;
10 using System.ServiceModel;
11 using System.ServiceModel.Description;
12 
13 namespace Host001
14 {
15     public partial class Form1 : Form
16     {
17         ServiceHost sHost = null;
18 
19         public Form1()
20         {
21             InitializeComponent();
22         }
23 
24         private void button1_Click(object sender, EventArgs e)
25         {
26             Uri uri = new Uri("http://localhost:8000");   //服务的地址
27 
28             sHost = new ServiceHost(typeof(Service1), uri);   //创建服务宿主
29 
30             sHost.AddServiceEndpoint(typeof(IService1), new WSHttpBinding(), "Service1");  //添加第一个终结点
31             sHost.AddServiceEndpoint(typeof(IInterface1), new WSHttpBinding(), "Interface1");//第二个终结点
32 
33             ServiceMetadataBehavior smb = new ServiceMetadataBehavior();  //定义服务传输层
34             smb.HttpGetEnabled = true;   //定义传输的属性
35             sHost.Description.Behaviors.Add(smb);
36 
37             
38             sHost.Open();   //打开服务
39         }
40     }
41 }

b.用web服务器做为wcf 的宿主

实现wcf 服务发布 .svc文件

 

<%@ServiceHost language="c#" Debug="true" Service="WcfService2.Service1"%>

 

 

在web.config 中配置wcf 服务

 

 1  <system.serviceModel>
 2     <services>
 3       <service name="WcfService2.Service1" behaviorConfiguration="MyServiceTypeBehaviors">
 4 
 5         <!-- This endpoint is exposed at the base address provided by host:                                        http://localhost/servicemodelsamples/service.svc  -->
 6         <endpoint address="Service1"
 7                   binding="wsHttpBinding"
 8                   contract="WcfService2.IService1" />
 9         <endpoint address="Interface1"
10                   binding="wsHttpBinding"
11                   contract="WcfService2.IInterface1" />
12 
13         <!-- The mex endpoint is explosed at http://localhost/servicemodelsamples/service.svc/mex -->
14         <endpoint address="mex"
15                   binding="mexHttpBinding"
16                   contract="IMetadataExchange" />
17 
18       </service>
19     </services>
20       <behaviors>
21         <serviceBehaviors>
22           <behavior name="MyServiceTypeBehaviors" >
23             <serviceMetadata httpGetEnabled="true" />
24           </behavior>
25         </serviceBehaviors>
26       </behaviors>
27 
28     </system.serviceModel>

 

4.添加wcf 服务引用

 用.net IDE 或 用 svcutil.exe 工具 生成 wcf 服务的 stub 文件
 

5. 创建wcf 服务 的客户端

 1 using System;
 2 using System.Collections.Generic;
 3 using System.ComponentModel;
 4 using System.Data;
 5 using System.Drawing;
 6 using System.Linq;
 7 using System.Text;
 8 using System.Windows.Forms;
 9 using Client1.ServiceReference2;
10 
11 namespace Client1
12 {
13     public partial class Form1 : Form
14     {
15         Service1Client service1 = new Service1Client();  //实例化终结点1
16         Interface1Client interface1 = new Interface1Client();  //实例化第二个终结点
17 
18         public Form1()
19         {
20             InitializeComponent();
21             service1.Open();
22         }
23 
24         private void button1_Click(object sender, EventArgs e)
25         {
26             label1.Text = service1.GetData(21);   //调用wcf的方法
27             CompositeType v = new CompositeType() ;   //生成传入数据协定的数据实例
28             v.BoolValue = true;
29             v.StringValue = "hello";
30             CompositeType type = service1.GetDataUsingDataContract(v);   //调用wcf的方法
31             string s = interface1.Function1(1);   //调用wcf的方法
32         }
33     }
34 }