wpf学习笔记（4）《都是自己根据网络资源学习记录的仅供参考》

技术2022-05-11 80

什么是WCF ?WCF和WPF怎么整合在一起。wcf是微软下一代的通讯标准,是将很多种通讯标准整合在一起，提供统一的通信操作方式.他的底层把这些服务整合在一起，上层提供给用户统一的访问方式，就是说写程序的时候不用再考虑是采用web服务还是其他通讯方式，如tcp它是一个通讯框架，不是任何服务.

来我们写个小程序看下,下面是修改从微软官方下载的一个程序.(我用的是Visual Studio 2005 Extensions for Windows Workflow Foundation (CHS) CTP版本的).

首先我们创建服务端的wcf项目起名叫service 添加一个类service.代码: // Copyright (c) Microsoft Corporation. All Rights Reserved. using System; using System.ServiceModel; 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 which implements the service contract. public class CalculatorService : ICalculator { public double Add(double n1, double n2) { return n1 + n2; } public double Subtract(double n1, double n2) { return n1 - n2; } public double Multiply(double n1, double n2) { return n1 * n2; } public double Divide(double n1, double n2) { return n1 / n2; } }} 添加一个service.svc的文件.代码: < %> @ServiceHost language = c# Debug = " true " Service = " Microsoft.ServiceModel.Samples.CalculatorService " % 添加一个web.config文件.代码： <? xml version = " 1.0 " encoding = " utf-8 " ?> < configuration > < system.serviceModel > < services > < service name = " Microsoft.ServiceModel.Samples.CalculatorService " behaviorConfiguration = " CalculatorServiceBehavior " >  < endpoint address = "" binding = " wsHttpBinding " contract = " Microsoft.ServiceModel.Samples.ICalculator " />  < endpoint address = " mex " binding = " mexHttpBinding " contract = " IMetadataExchange " /> </ service > </ services >  < behaviors > < serviceBehaviors > < behavior name = " CalculatorServiceBehavior " > < serviceMetadata httpGetEnabled = " True " /> < serviceDebug includeExceptionDetailInFaults = " False " /> </ behavior > </ serviceBehaviors > </ behaviors > </ system.serviceModel > </ configuration > 服务端写好了

我们再写个客户端

建立个client项目. 增加app.config文件.代码： <? xml version = " 1.0 " encoding = " utf-8 " ?> < configuration > < system.serviceModel > < client > < endpoint address = " http://localhost/servicemodelsamples/service.svc?wsdl " binding = " wsHttpBinding " contract = " Microsoft.ServiceModel.Samples.ICalculator " /> </ client > </ system.serviceModel > </ configuration > 增加client类.代码： // Copyright (c) Microsoft Corporation. All Rights Reserved. using System; using System.ServiceModel; namespace Microsoft.ServiceModel.Samples { //The service contract is defined in generatedClient.cs, generated from the service by the svcutil tool. //Client implementation code. class Client { static void Main() { // Create a client CalculatorClient client = new CalculatorClient(); // 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); //Closing the client gracefully closes the connection and cleans up resources client.Close(); Console.WriteLine(); Console.WriteLine("Press <ENTER> to terminate client."); Console.ReadLine(); } }} 增加generatedClient类.代码： // ------------------------------------------------------------------------------ // <auto-generated> // This code was generated by a tool. // Runtime Version:2.0.50727.42 // // Changes to this file may cause incorrect behavior and will be lost if // the code is regenerated. // </auto-generated> // ------------------------------------------------------------------------------ namespace Microsoft.ServiceModel.Samples { [System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "3.0.0.0")] [System.ServiceModel.ServiceContractAttribute(Namespace = "http://Microsoft.ServiceModel.Samples", ConfigurationName = "Microsoft.ServiceModel.Samples.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 : Microsoft.ServiceModel.Samples.ICalculator, System.ServiceModel.IClientChannel { } [System.Diagnostics.DebuggerStepThroughAttribute()] [System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "3.0.0.0")] public partial class CalculatorClient : System.ServiceModel.ClientBase<Microsoft.ServiceModel.Samples.ICalculator>, Microsoft.ServiceModel.Samples.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); } }}

好了我们开始配置服务端．

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