SummaryThis chapter covered a lot of ground,beginning with a look at the purpose of WCF,the problems it solves and its alignment with SOA,through discussion of the fundamentals developers should know before they begin working with WCF. I also touched…

How messages reach a service endpoint is a matter of protocols and hosting. IIS can host services over HTTP protocol,the Windows Activation Service (WAS) can support others such as TCP and named pipes,and self-hosting can support many protocols and i…

In the previous lab,you created a service and client from scratch without leveraging the tools available to WCF developers. Although this helps you to understand the raw requirements for sending messages between clients and services,in reality,develo…

You’re about to be introduced to the WCF service. This lab isn’t your typical “Hello World”—it’s “Hello Indigo”! In this lab,you will learn how to build a new WCF service and in the process learn the minimum requirements of service development and co…

So far in this chapter,I have shown you different ways to create services,how to expose a service endpoint and metadata exchange endpoint,how to generate client proxies,how to work with metadata,and how to configure service behaviors. In this section…

Learning WCF Download Example Code 第一个压缩文件LearningWCF.zip是VS2005创建的项目,不要下载这个. 建议下载VS2008版的,以及Media…

At its core,WCF is a development platform for service-oriented applications. As I mentioned earlier,WCF is part of the .NET Framework 3.0,which comprises a set of new assemblies that rely on the .NET Framework 2.0. System.ServiceModel is the assembly…

WCF ServicesWCF services are the new distributed boundary in an enterprise application—with an emphasis on SOA. In the past,you had to deliberate between Enterprise Services,.NET Remoting,or ASMX to distribute and reuse functionality,WCF provides you…

A data contract describes how CLR types map to XSD schema definitions. Data contracts are the preferred way to enable serialization of complex types included in operation signatures as parameters or return values. You create a data contract by applyi…

A service contract describes the operations supported by a service,the message exchange pattern they use,and the format of each message. The service contract is also the main driver for generating a service description. A valid WCF service implements…

So far I’ve talked about the standards behind it all,but in fact WCF hides most of this from the developer by providing a programming interface for designing service contracts and controlling the message format. Application messaging requirementsare…

While messaging protocols are responsible for message serialization formats,there must be a way to capture the protocols required to communicate between clients and services. In Chapter 1,you worked with WSDL documents,which describe the requirements…

In Chapter 1,you were introduced to fundamental WCF concepts,      在章节1中,学习了wcf中的基础概念including how to create and consume a service,           包括如何创建以及调用服务how to host a service and expose endpoints where it can be reached by clients,    如何托管服务,使得客户端可以…

One-Way and Duplex Communication A message exchange pattern describes the way messages are sent between applica-tions. There are three classic message exchange patterns: request-reply, one-way, and duplex (callbacks). Figure 3-7 illustrates these pat…

There are two types of Execptions which can be throwed from the WCF service. They are Application excepiton and Infrastructure exception. Handle Application Exception If we do nothing, a FaultException always be throwed when your WCF service appear a…

示例代码下载地址:WCFDemo1Day 概述 客户端向WCF服务发出请求后,服务端会实例化一个Service对象(实现了契约接口的对象)用来处理请求,实例化Service对象以及维护其生命周期的方式在WCF中共有三种不同的类型,分别是: Per-Call Per-Session Single 程序中通过设置ServiceBehavior特性来指定,如下: [ServiceBehavior(InstanceContextMode = InstanceContextMode.PerCall)] p…

This is a very simple demo which can help you create a wcf applition quickly. Create a Solution Open Vistual Stuido and create a solution named WCFDemoJoey. It looks like this: Crate a Entity using System.Runtime.Serialization; namespace Entities { […

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;usi…

引用就不说明,直接贴上: using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.ServiceModel;using System.Configuration;using System.Collections; public class WCFServiceHelper { private static List<ServiceHost> _ServiceHo…

原文:[SignalR]SignalR与WCF双工模式结合实现服务端数据直推浏览器端 之前开发基于WinForm监控的软件,服务端基于Wcf实现,里面涉及双工模式,在客户端里面,采用心跳包机制保持与服务端链接,现在有了新需求,需要开发网页版形式,所以怎么保持与服务端链接是重要点,由于数据量比较大,所以不能采用客户端发起请求不断轮询的方式.参考各种资料后,使用SignalR,主要是支持WebSockets通信.并且Hub链接方式解决了realtime 信息交换的功能问题. 下图是MSDN关于解释:…

添加wcf服务引用时,vs.net本来就会帮我们在app.config/web.config里生成各种配置,这没啥好研究的,但本文谈到的配置并不是这个.先看下面的图: 通常,如果采用.NET的WCF技术来架构SOA风格的应用,我们会把项目做一些基本的分层,如上图: 01. contract层:通常定义服务的接口(即服务契约ServiceContract,指明该服务提供了哪些方法可供外部调用).以及接口方法中传输的Model定义(即:数据契约DataContract,指明方法中的对象参数的Clas…

回<[开源]EFW框架系列文章索引>        EFW框架源代码下载V1.3:http://pan.baidu.com/s/1c0dADO0 EFW框架实例源代码下载:http://pan.baidu.com/s/1eQCc69G        前言:以前的系统都是直接客户端直连数据库服务器,后来考虑到服务器的安全性.数据库连接数的限制.分布能力差等问题,特别是那几年中间件.SOA.ESB等炒得比较火,为了跟上时代脚本有必要开发一个中间件,把后台逻辑业务在中间件中运行.刚开始考虑过WebS…

回<[开源]EFW框架系列文章索引> EFW框架源代码下载V1.1:http://pan.baidu.com/s/1qWJjo3U EFW框架实例源代码下载:http://pan.baidu.com/s/1o6MAKCa 只有当你需要开发三层架构的系统并利用WCF作为系统的中间件,那么就需要使用WCF控制器.EFW框架中的Wcf控制器分为两个部分WcfClientController和WcfController,两者利用Wcf服务进行通讯,其中WcfClientController的功能与上章…

WCF服务的寄宿方式 WCF寄宿方式是一种非常灵活的操作,可以寄宿在各种进程之中,常见的寄宿有: IIS服务.Windows服务.Winform程序.控制台程序中进行寄宿,从而实现WCF服务的运行,为调用者方便.高效提供服务调用. 签名 前面介绍过了WCF常用的一种寄宿方式,IIS服务寄宿.这种寄宿方式是最为方便的方式,而且由于服务只需要IIS运行就能自动运行起来,因此广为使用. 创建这种方式IIS寄宿方式的,只需要在解决方案里面,添加WCF服务应用程序,就可以生成这种的服务模块了. 将WCF服…

Applied Deep Learning Resources A collection of research articles, blog posts, slides and code snippets about deep learning in applied settings. Including trained models and simple methods that can be used out of the box. Mainly focusing on Convoluti…

为了程序的健壮性.扩展性.可维护性,依赖抽象而不是具体实现类等等,于是我选择了Autofac依赖注入容器 就是这个工厂来降低耦合.之前买东西是自己去超市,现在呢 我需要什么东西,他们给送过来直接拿到了.  本例中将会分享 1.Autofac在Mvc的Controller控制器.Filter过滤器的使用 2.WCF中的使用 3.用Autofac来完成Unit Of Work工作单元模式 即同一个界限上下文内可以共享同一个工作单元实例.这样就可以统一提交,起到事务作用.数据统一性.一个http请求只…

WCF - net.pipe vs. net.tcp vs. http Bindings 问题: I'm new to WCF and would like to know the differences/advantages/limitations/etc of each of the following bindings: net.pipe net.tcp http Supporting scenarios on when to use each binding and other exam…

1.第一种情况 百度上找到了这篇文章  http://blog.sina.com.cn/s/blog_6b44b2ba01016j0z.html 讲的是使用了using用完之后就释放了,得到启发,仔细检查了Host的代码 对比了Learning WCF第一章中的示例代码,发现用try finally来执行的 在finally中将服务关闭了 try { //打开服务的代码 //有2个Service打开 } finally { CloseHost(hostA); CloseHost(hostB);…

WCF服务的寄宿方式 WCF寄宿方式是一种非常灵活的操作,可以寄宿在各种进程之中,常见的寄宿有: IIS服务.Windows服务.Winform程序.控制台程序中进行寄宿,从而实现WCF服务的运行,为调用者方便.高效提供服务调用. 面介绍过了WCF常用的一种寄宿方式,IIS服务寄宿.这种寄宿方式是最为方便的方式,而且由于服务只需要IIS运行就能自动运行起来,因此广为使用. 创建这种方式IIS寄宿方式的,只需要在解决方案里面,添加WCF服务应用程序,就可以生成这种的服务模块了. 将WCF服务寄宿到…

设计原则:万物皆对象 背景:微软提供了一套强大的通信框架Wcf,了解请看百度百科:ttps://baike.baidu.com/item/Wcf/7374854?fr=aladdin 虽然这套通信框架很强大,但是配置起来也不简单,因此导致很多人望而却步(包括我),我这人向来不喜欢麻烦,喜欢简单,最好就是给我一个对象,告诉我怎么传参就使用是最爽的,我相信应该有很多人跟我一样的想法,因此,这篇文章应运而生,没错,就是零配置使用Wcf,下面我会详细道来. 正文: 1.核心类库,注意,需要引用程序集 S…