wcf学习笔记1 hello world程序

1.wcf入门示例

2.源代码下载

 

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1.wcf入门示例

 

1.1 定义contract

 

其实这里的contract简单的将就是一个interface，但是注意的是这里的接口需要添加ServiceContract属性，接口中的方法只有添加了OperationContract才是公开的contract方法。

 

[ServiceContract(Namespace = "http://Microsoft.ServiceModel.Samples")] public interface ICalculator { [OperationContract] double Add(double d1, double d2); [OperationContract] double Minus(double d1, double d2); [OperationContract] double Divide(double d1, double d2); [OperationContract] double Multiply(double d1, double d2); }

 

1.2 实现该contract的service

 

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.ServiceModel;namespace Microsoft.ServiceModel.Samples{ class CalculatorService : ICalculator { #region ICalculator 成员 public double Add(double d1, double d2) { double result = d1 + d2; Console.WriteLine("Received ({0},{1})", d1, d2); Console.WriteLine("Return: {0}", result); return result; } public double Minus(double d1, double d2) { double result = d1 - d2; Console.WriteLine("Received ({0},{1})", d1, d2); Console.WriteLine("Return: {0}", result); return result; } public double Divide(double d1, double d2) { double result = d1 / d2; Console.WriteLine("Received ({0},{1})", d1, d2); Console.WriteLine("Return: {0}", result); return result; } public double Multiply(double d1, double d2) { double result = d1 * d2; Console.WriteLine("Received ({0},{1})", d1, d2); Console.WriteLine("Return: {0}", result); return result; } #endregion }}

 

1.3 承载service

 

承载一个wcf服务可以使用下面的步骤：

 

1.创建ServiceHost承载该服务

ServiceHost selfHost = new ServiceHost(typeof(CalculatorService), baseAddress);

 

2.使用try...catch块，并在其中添加下面三步中的代码：

try{ // ...}catch (CommunicationException ce){ Console.WriteLine("An exception occurred: {0}", ce.Message); selfHost.Abort();}

 

3.添加服务终结点

selfHost.AddServiceEndpoint( typeof(ICalculator), new WSHttpBinding(), "CalculatorService");

 

4.Enable Metadata Exchange

ServiceMetadataBehavior smb = new ServiceMetadataBehavior(); smb.HttpGetEnabled = true; selfHost.Description.Behaviors.Add(smb);

 

5.打开ServiceHost

selfHost.Open();

 

完整代码如下：

static void Main(string[] args) { Uri baseAddress = new Uri("http://localhost:8000/ServiceModelSamples/Service"); 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(); } }

 

1.4生成客户端使用代码

 

svcutil.exe /language:cs /out:generatedProxy.cs /config:app.config http://localhost:8000/ServiceModelSamples/service

生成app.config和generatedProxy.cs两个文件：

app.config

<?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="">                            <extendedProtectionPolicy policyEnforcement="Never" />                        </transport>                        <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="home-PC/home" />                </identity>            </endpoint>        </client>    </system.serviceModel></configuration> 

generatedProxy.cs

//------------------------------------------------------------------------------// <auto-generated>//     此代码由工具生成。//     运行时版本:2.0.50727.4927////     对此文件的更改可能会导致不正确的行为，并且如果//     重新生成代码，这些更改将会丢失。// </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 d1, double d2);        [System.ServiceModel.OperationContractAttribute(Action="http://Microsoft.ServiceModel.Samples/ICalculator/Minus", ReplyAction="http://Microsoft.ServiceModel.Samples/ICalculator/MinusResponse")]    double Minus(double d1, double d2);        [System.ServiceModel.OperationContractAttribute(Action="http://Microsoft.ServiceModel.Samples/ICalculator/Divide", ReplyAction="http://Microsoft.ServiceModel.Samples/ICalculator/DivideResponse")]    double Divide(double d1, double d2);        [System.ServiceModel.OperationContractAttribute(Action="http://Microsoft.ServiceModel.Samples/ICalculator/Multiply", ReplyAction="http://Microsoft.ServiceModel.Samples/ICalculator/MultiplyResponse")]    double Multiply(double d1, double d2);}[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 d1, double d2)    {        return base.Channel.Add(d1, d2);    }        public double Minus(double d1, double d2)    {        return base.Channel.Minus(d1, d2);    }        public double Divide(double d1, double d2)    {        return base.Channel.Divide(d1, d2);    }        public double Multiply(double d1, double d2)    {        return base.Channel.Multiply(d1, d2);    }} 

1.5 客户端程序

 

static void Main(string[] args)        {            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.Minus(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();        }

2.源代码下载

 

源代码下载