完全使用接口方式调用WCF 服务

 

客户端调用WCF服务可以通过添加服务引用的方式添加，这种方式使用起来比较简单，适合小项目使用。服务端与服务端的耦合较深，而且添加服务引用的方式生成一大堆臃肿的文件。本例探讨一种使用接口的方式使用WCF服务，克服通过服务引用方式产生的弊端。同时希望抛砖引玉，探讨更好的方式使用WCF。

1. 架构概述

解决方案

说明：

接口层：数字计算接口

服务实现层：实现数字计算接口

发布：同过IIS方式发布WCF服务

客户端：引用接口层，通过配置文件调用WCF服务

2. 接口层

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.ServiceModel;

namespace Hbb0b0.WCF.Inteface

{

/// <summary>

/// 数学计算服务

/// </summary>

[ServiceContract]

public interface IMathService

{

/// <summary>

/// 相加服务

/// </summary>

/// <param name="p1"></param>

/// <param name="p2"></param>

/// <returns></returns>

[OperationContract]

int Add(int p1,int p2);

}

}

3. 实现层

using System;

using System.Collections.Generic;

using System.Linq;

using System.Runtime.Serialization;

using System.ServiceModel;

using System.Text;

using Hbb0b0.WCF.Inteface;

namespace Hbb0b0.WCF.ServiceImp

{

/// <summary>

/// 计算服务实现

/// </summary>

public class MathService : IMathService

{

#region IMathService 成员

public int Add(int p1, int p2)

{

return p1 + p2;

}

#endregion

}

}

4. 发布层

1. SVC

<%@ServiceHost language=c# Debug="true" Service="Hbb0b0.WCF.ServiceImp.MathService" %>

2. Web.Config

<?xml version="1.0"?>

<configuration>

<system.serviceModel>

<bindings>

<basicHttpBinding>

<binding name="NewBinding0" />

</basicHttpBinding>

</bindings>

<services>

<service behaviorConfiguration="MyServiceTypeBehaviors" name="Hbb0b0.WCF.ServiceImp.MathService">

<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />

<endpoint address="http://localhost:1331/MathService.svc" binding="basicHttpBinding" bindingName="NewBinding0"

name="address" contract="Hbb0b0.WCF.Inteface.IMathService" />

</service>

</services>

<behaviors>

<serviceBehaviors>

<behavior name="MyServiceTypeBehaviors" >

<!-- 将下列元素添加到服务行为配置中。 -->

<serviceMetadata httpGetEnabled="true" />

</behavior>

</serviceBehaviors>

</behaviors>

</system.serviceModel>

</configuration>

3. 调用层

1. Client

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.ServiceModel;

using System.Configuration;

using System.ServiceModel.Configuration;

using Hbb0b0.WCF.Inteface;

using System.Reflection;

using System.ServiceModel.Channels;

namespace MathServiceClient

{

class Program

{

/// <summary>

/// ServiceModel 属性

/// </summary>

static ServiceModelSectionGroup ServiceModelConfig;

/// <summary>

/// 构造函数中初始化ServiceModelConfig

/// </summary>

static Program()

{

if(ServiceModelConfig==null)

{

ServiceModelConfig = GetServiceModelSectionGroup();

}

}

static void Main(string[] args)

{

//不知道如何使用配置初始化Binding

//Binding binding = Assembly.GetCallingAssembly().CreateInstance(ServiceModelConfig.Bindings["NewBinding0"].BindingType.FullName) as Binding;

//初始化Endpoint

EndpointAddress point = new EndpointAddress(ServiceModelConfig.Client.Endpoints[0].Address);

//创建通道

IMathService service = ChannelFactory<IMathService>.CreateChannel(

new BasicHttpBinding () ,

point);

//调用

int result= service.Add(2, 3);

Console.WriteLine(string.Format("result={0}", result));

Console.Read();

}

/// <summary>

/// 获取ServiceModel配置信息

/// </summary>

/// <returns></returns>

static ServiceModelSectionGroup GetServiceModelSectionGroup()

{

Configuration conf = ConfigurationManager.OpenExeConfiguration(Assembly.GetEntryAssembly().Location);

ServiceModelSectionGroup svcmod = (ServiceModelSectionGroup)conf.GetSectionGroup("system.serviceModel");

return svcmod;

}

}

}

2. AppConfig

<?xml version="1.0" encoding="utf-8" ?>

<configuration>

<system.serviceModel>

<client>

<endpoint address="http://localhost:1331/MathService.svc" binding="basicHttpBinding"

contract="Hbb0b0.WCF.Inteface.IMathService" name="mathService" />

</client>

</system.serviceModel>

</configuration>