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1.WCF中的 "A","B","C" 介绍
我们先看个生活中的例子，某一天，公司的领导让你去送一份合同文件，送文件的过程你可以选择的交通方式为“打车”、“公交”、“地铁”，当然费用是根据发票来报销的，到了对方公司后你要找到某经理，并且要一份收到合同文件的回执和相关文件。
要完成这项工作任务我们执行以下几个主要的步骤：
(1)我们首先要知道对方公司的地址，引出WCF中的"A"。
A(Address)：英文理解为"地址"，在计算机中是通过一个URI唯一地址标识，通过这个地址我们可以找到我们要调用的WCF服务。
A解决了：Where to locate the WCF Service？
(2)我们还要选择我们的交通方式，每种交通方式达到的结果不一样。如：打车费用较贵、但是过程舒服些，时间上视道路情况而定。公交最便宜，并且可选择多条线路。地铁最方便，但是偶尔会很挤，一般都没座等等，引出WCF中的"B"。
B(Binding)：英文理解为"捆绑，绑定"， Binding实现在Client和Service通信的所有底层细节。如：我们在客户端与服务端传输的时候采用的是什么样的编码，XML？Text？二进制？...采用哪种传输协议进行传输，TCP？Http？以及采用什么样的机制解决安全问题，SSL？加密？...
B解决了：How to communicate with service？
(3)到了对方公司之后我们能做哪些事？I.送合同，II.拿回执。我们不能要求对方公司给我们其他的东西，引出WCF中的"C"。
C(Contract)：英文理解为"合同"，合同是什么？告诉我们哪些事能做，如些事不能做。 Contract的主要的作用是暴露某个WCF Service所提供的所有有效的方法。Contract实际上是把每个方法的转化成为相对应的消息。
C解决了：What functionalities do the Service provide？
2.简化WCF的配置
我们可以通过单击“工具”--“WCF服务配置编辑器”，开启WCF服务配置编辑器。
3.构建一个简单的WCF应用
接口ICalculator
[ServiceContract(Name = "CalculatorService", Namespace ="http://www.wzl.com/")]
public interface ICalculator
{
[OperationContract]
double Add(double x, double y);
[OperationContract]
double Subtract(double x, double y);
[OperationContract]
double Multiply(double x, double y);
[OperationContract]
double Divide(double x, double y);
}
实现接口Service
public class CalculatorService : ICalculator
{
public double Add(double x, double y)
{
return x + y;
}
public double Subtract(double x, double y)
{
return x - y;
}
public double Multiply(double x, double y)
{
return x * y;
}
public double Divide(double x, double y)
{
return x / y;
}
第一种：
Host启用服务：不需要任何配置文件
static void Main(string[] args)
{
using (ServiceHost host = new ServiceHost(typeof(CalculatorService)))
{
host.AddServiceEndpoint(typeof(ICalculator), new WSHttpBinding(),"http://127.0.0.1:3721/calculatorservice");
if (host.Description.Behaviors.Find<ServiceMetadataBehavior>() == null)
{
ServiceMetadataBehavior behavior = new ServiceMetadataBehavior();
behavior.HttpGetEnabled = true;
behavior.HttpGetUrl = new Uri("http://127.0.0.1:3721/calculatorservice/metadata");
host.Description.Behaviors.Add(behavior);
}
host.Opened += delegate
{
Console.WriteLine("CalculaorService已经启动，按任意键终止服务！");
};
host.Open();
Console.Read();
}
}
Client调用：通过添加服务引用的方式(右键引用-添加服务引用)
static void Main(string[] args)
{
using (CalculatorServiceClient proxy = new CalculatorServiceClient())
{
Console.WriteLine("x + y = {2} when x = {0} and y = {1}", 1, 2, proxy.Add(1, 2));
Console.WriteLine("x - y = {2} when x = {0} and y = {1}", 1, 2, proxy.Subtract(1, 2));
Console.WriteLine("x * y = {2} when x = {0} and y = {1}", 1, 2, proxy.Multiply(1, 2));
Console.WriteLine("x / y = {2} when x = {0} and y = {1}", 1, 2, proxy.Divide(1, 2));
}
Console.Read();
}
第二种：
Host启用服务：通过配置文件
1 <system.serviceModel> 2 <behaviors> 3 <serviceBehaviors> 4 <behavior name="metadataBehavior"> 5 <serviceMetadata httpGetEnabled="true" 6 httpGetUrl="http://127.0.0.1:3721/calculatorservice/metadata" /> 7 </behavior> 8 </serviceBehaviors> 9 </behaviors> 10 <services> 11 <service name="Artech.WcfServices.Service.CalculatorService" 12 behaviorConfiguration="metadataBehavior" > 13 <endpoint address="http://127.0.0.1:3721/calculatorservice" 14 binding="wsHttpBinding" 15 contract="Artech.WcfServices.Service.Interface.ICalculator" /> 16 </service> 17 </services> 18 </system.serviceModel>
启用
1 static void Main(string[] args) 2 { 3 using (ServiceHost host = new ServiceHost(typeof(CalculatorService))) 4 { 5 host.Opened += delegate 6 { 7 Console.WriteLine("CalculaorService已经启动，按任意键终止服务！"); 8 }; 9 10 host.Open(); 11 Console.Read(); 12 } 13 }
Client调用：
1 static void Main(string[] args) 2 { 3 using (ChannelFactory<ICalculator> channelFactory = new ChannelFactory<ICalculator>(new WSHttpBinding(), "http://127.0.0.1:3721/calculatorservice")) 4 { 5 ICalculator proxy = channelFactory.CreateChannel(); 6 Console.WriteLine("x + y = {2} when x = {0} and y = {1}", 1, 2, proxy.Add(1, 2)); 7 Console.WriteLine("x - y = {2} when x = {0} and y = {1}", 1, 2, proxy.Subtract(1, 2)); 8 Console.WriteLine("x * y = {2} when x = {0} and y = {1}", 1, 2, proxy.Multiply(1, 2)); 9 Console.WriteLine("x / y = {2} when x = {0} and y = {1}", 1, 2, proxy.Divide(1, 2)); 10 } 11 Console.Read(); 12 }
第三种：
Host启用服务：通过配置文件
1 <system.serviceModel> 2 <behaviors> 3 <serviceBehaviors> 4 <behavior name="metadataBehavior"> 5 <serviceMetadata httpGetEnabled="true" 6 httpGetUrl="http://127.0.0.1:3721/calculatorservice/metadata" /> 7 </behavior> 8 </serviceBehaviors> 9 </behaviors> 10 <services> 11 <service name="Artech.WcfServices.Service.CalculatorService" 12 behaviorConfiguration="metadataBehavior" > 13 <endpoint address="http://127.0.0.1:3721/calculatorservice" 14 binding="wsHttpBinding" 15 contract="Artech.WcfServices.Service.Interface.ICalculator" /> 16 </service> 17 </services> 18 </system.serviceModel>
启用
1 static void Main(string[] args) 2 { 3 using (ServiceHost host = new ServiceHost(typeof(CalculatorService))) 4 { 5 host.Opened += delegate 6 { 7 Console.WriteLine("CalculaorService已经启动，按任意键终止服务！"); 8 }; 9 10 host.Open(); 11 Console.Read(); 12 } 13 }
Client调用：通过配置文件
1 <system.serviceModel> 2 <client> 3 <endpoint name="calculatorservice" 4 address="http://127.0.0.1:3721/calculatorservice" 5 binding="wsHttpBinding" 6 contract="Artech.WcfServices.Service.Interface.ICalculator" /> 7 </client> 8 </system.serviceModel>
调用
1 static void Main(string[] args) 2 { 3 using (ChannelFactory<ICalculator> channelFactory = new ChannelFactory<ICalculator>("calculatorservice")) 4 { 5 ICalculator proxy = channelFactory.CreateChannel(); 6 Console.WriteLine("x + y = {2} when x = {0} and y = {1}", 1, 2, proxy.Add(1, 2)); 7 Console.WriteLine("x - y = {2} when x = {0} and y = {1}", 1, 2, proxy.Subtract(1, 2)); 8 Console.WriteLine("x * y = {2} when x = {0} and y = {1}", 1, 2, proxy.Multiply(1, 2)); 9 Console.WriteLine("x / y = {2} when x = {0} and y = {1}", 1, 2, proxy.Divide(1, 2)); 10 } 11 Console.Read(); 12 }
第四种：通过发布部署到IIS的方式
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原文地址：http://www.cnblogs.com/cnki/p/5216420.html
