WCF简单实例

一 简单示例结构

 [此实例纯手动实现，更简单地可以使用WCF的工程向导来创建wcf service，WCF Service也可以使用config文件，可以使用project的add referece来自动生成proxy和config]

二 WCFServer

1) wcfserver.cs文件如下：（需要引用system.servicemodel assembly）

using System;
using System.ServiceModel;
using System.ServiceModel.Description;

namespace Microsoft.ServiceModel.Samples
{
    // Define a service contract.
    [ServiceContract(Namespace = "http://Microsoft.ServiceModel.Samples")]
    public interface ICalculator
    {
        [OperationContract]
        double Add(double n1, double n2);
        [OperationContract]
        double Subtract(double n1, double n2);
        [OperationContract]
        double Multiply(double n1, double n2);
        [OperationContract]
        double Divide(double n1, double n2);
    }

    // Service class that implements the service contract.
    // Added code to write output to the console window.
    public class CalculatorService : ICalculator
    {
        public double Add(double n1, double n2)
        {
            double result = n1 + n2;
            Console.WriteLine("Received Add({0},{1})", n1, n2);
            Console.WriteLine("Return: {0}", result);
            return result;
        }
        public double Subtract(double n1, double n2)
        {
            double result = n1 - n2;
            Console.WriteLine("Received Subtract({0},{1})", n1, n2);
            Console.WriteLine("Return: {0}", result);
            return result;
        }
        public double Multiply(double n1, double n2)
        {
            double result = n1 * n2;
            Console.WriteLine("Received Multiply({0},{1})", n1, n2);
            Console.WriteLine("Return: {0}", result);
            return result;
        }
        public double Divide(double n1, double n2)
        {
            double result = n1 / n2;
            Console.WriteLine("Received Divide({0},{1})", n1, n2);
            Console.WriteLine("Return: {0}", result);
            return result;
        }
    }

    class WCFServer
    {
        static void Main(string[] args)
        {
            // Step 1 of the address configuration procedure: 

            // Create a URI to serve as the base address.
            Uri baseAddress = new Uri("http://localhost:8000/ServiceModelSamples/Service");

            // Step 2 of the hosting procedure: Create ServiceHost
            ServiceHost selfHost = new ServiceHost(typeof(CalculatorService), baseAddress);

            try
            {
                // Step 3 of the hosting procedure: Add a service endpoint.
                selfHost.AddServiceEndpoint(
                    typeof(ICalculator),
                    new WSHttpBinding(),
                    "CalculatorService");

                // Step 4 of the hosting procedure: Enable metadata exchange.
                ServiceMetadataBehavior smb = new ServiceMetadataBehavior();
                smb.HttpGetEnabled = true;
                selfHost.Description.Behaviors.Add(smb);

                // Step 5 of the hosting procedure: Start (and then stop) the service.
                selfHost.Open();
                Console.WriteLine("The service is ready.");
                Console.WriteLine("Press <ENTER> to terminate service.");
                Console.WriteLine();
                Console.ReadLine();

                // Close the ServiceHostBase to shutdown the service.
                selfHost.Close();
            }
            catch (CommunicationException ce)
            {
                Console.WriteLine("An exception occurred: {0}", ce.Message);
                selfHost.Abort();
            }
        }
    }
}

2) 运行wcfserver后，在浏览器中查看wcfserver提供的wcf service如下：（此时scfserver必须处于运行状态）

三 WCFClient （控制台程序）

1) 使用svcutil.exe生成wcfserver提供的wcf service的代理和wcfclient需要的config文件，如下：（此时scfserver必须处于运行状态）

"C:\Program Files\Microsoft SDKs\Windows\v6.0A\bin\svcutil.exe" /language:cs /out:WCFClient\generatedProxy.cs /config:WCFClient\app.config http://localhost:8000/ServiceModelSamples/service

2）将生成的generatedproxy.cs和app.config加入wcfclient工程中，

generatedproxy.cs如下： 

//------------------------------------------------------------------------------
// <auto-generated>
//     This code was generated by a tool.
//     Runtime Version:2.0.50727.3615
//
//     Changes to this file may cause incorrect behavior and will be lost if
//     the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------



[System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "3.0.0.0")]
[System.ServiceModel.ServiceContractAttribute(Namespace="http://Microsoft.ServiceModel.Samples", ConfigurationName="ICalculator")]
public interface ICalculator
{
    
    [System.ServiceModel.OperationContractAttribute(Action="http://Microsoft.ServiceModel.Samples/ICalculator/Add", ReplyAction="http://Microsoft.ServiceModel.Samples/ICalculator/AddResponse")]
    double Add(double n1, double n2);
    
    [System.ServiceModel.OperationContractAttribute(Action="http://Microsoft.ServiceModel.Samples/ICalculator/Subtract", ReplyAction="http://Microsoft.ServiceModel.Samples/ICalculator/SubtractResponse")]
    double Subtract(double n1, double n2);
    
    [System.ServiceModel.OperationContractAttribute(Action="http://Microsoft.ServiceModel.Samples/ICalculator/Multiply", ReplyAction="http://Microsoft.ServiceModel.Samples/ICalculator/MultiplyResponse")]
    double Multiply(double n1, double n2);
    
    [System.ServiceModel.OperationContractAttribute(Action="http://Microsoft.ServiceModel.Samples/ICalculator/Divide", ReplyAction="http://Microsoft.ServiceModel.Samples/ICalculator/DivideResponse")]
    double Divide(double n1, double n2);
}

[System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "3.0.0.0")]
public interface ICalculatorChannel : ICalculator, System.ServiceModel.IClientChannel
{
}

[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "3.0.0.0")]
public partial class CalculatorClient : System.ServiceModel.ClientBase<ICalculator>, ICalculator
{
    
    public CalculatorClient()
    {
    }
    
    public CalculatorClient(string endpointConfigurationName) : 
            base(endpointConfigurationName)
    {
    }
    
    public CalculatorClient(string endpointConfigurationName, string remoteAddress) : 
            base(endpointConfigurationName, remoteAddress)
    {
    }
    
    public CalculatorClient(string endpointConfigurationName, System.ServiceModel.EndpointAddress remoteAddress) : 
            base(endpointConfigurationName, remoteAddress)
    {
    }
    
    public CalculatorClient(System.ServiceModel.Channels.Binding binding, System.ServiceModel.EndpointAddress remoteAddress) : 
            base(binding, remoteAddress)
    {
    }
    
    public double Add(double n1, double n2)
    {
        return base.Channel.Add(n1, n2);
    }
    
    public double Subtract(double n1, double n2)
    {
        return base.Channel.Subtract(n1, n2);
    }
    
    public double Multiply(double n1, double n2)
    {
        return base.Channel.Multiply(n1, n2);
    }
    
    public double Divide(double n1, double n2)
    {
        return base.Channel.Divide(n1, n2);
    }
}

app.config如下： 

<?xml version="1.0" encoding="utf-8"?>
<configuration>
    <system.serviceModel>
        <bindings>
            <wsHttpBinding>
                <binding name="WSHttpBinding_ICalculator" closeTimeout="00:01:00"
                    openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
                    bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard"
                    maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
                    messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true"
                    allowCookies="false">
                    <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
                        maxBytesPerRead="4096" maxNameTableCharCount="16384" />
                    <reliableSession ordered="true" inactivityTimeout="00:10:00"
                        enabled="false" />
                    <security mode="Message">
                        <transport clientCredentialType="Windows" proxyCredentialType="None"
                            realm="" />
                        <message clientCredentialType="Windows" negotiateServiceCredential="true"
                            algorithmSuite="Default" establishSecurityContext="true" />
                    </security>
                </binding>
            </wsHttpBinding>
        </bindings>
        <client>
            <endpoint address="http://localhost:8000/ServiceModelSamples/Service/CalculatorService"
                binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_ICalculator"
                contract="ICalculator" name="WSHttpBinding_ICalculator">
                <identity>
                    <userPrincipalName value="itech@example.com/>
                </identity>
            </endpoint>
        </client>
    </system.serviceModel>
</configuration>

3）wcfclient.cs文件如下： 

using System;
using System.ServiceModel;

namespace Microsoft.ServiceModel.Samples
{

    class WCFClient
    {
        static void Main()
        {
            //Step 1: Create an endpoint address and an instance of the WCF Client.
            CalculatorClient client = new CalculatorClient();


            // Step 2: Call the service operations.
            // Call the Add service operation.
            double value1 = 100.00D;
            double value2 = 15.99D;
            double result = client.Add(value1, value2);
            Console.WriteLine("Add({0},{1}) = {2}", value1, value2, result);

            // Call the Subtract service operation.
            value1 = 145.00D;
            value2 = 76.54D;
            result = client.Subtract(value1, value2);
            Console.WriteLine("Subtract({0},{1}) = {2}", value1, value2, result);

            // Call the Multiply service operation.
            value1 = 9.00D;
            value2 = 81.25D;
            result = client.Multiply(value1, value2);
            Console.WriteLine("Multiply({0},{1}) = {2}", value1, value2, result);

            // Call the Divide service operation.
            value1 = 22.00D;
            value2 = 7.00D;
            result = client.Divide(value1, value2);
            Console.WriteLine("Divide({0},{1}) = {2}", value1, value2, result);

            //Step 3: Closing the client gracefully closes the connection and cleans up resources.
            client.Close();


            Console.WriteLine();
            Console.WriteLine("Press <ENTER> to terminate client.");
            Console.ReadLine();

        }
    }
}

4）运行wcfserver后如下：

四 其他

完！