How to: Define a Windows Communication Foundation Service Contract
https://msdn.microsoft.com/en-us/library/ms731835.aspx
This is the first of six tasks required to create a basic Windows Communication Foundation (WCF) application. For an overview of all six of the tasks, see the Getting Started Tutorial topic.
创建一个wcf应用需要6个步骤,本篇文章涉及的是第一个步骤。
When creating a WCF service, the first task is to define a service contract.
创建一个wcf服务的时候,第一个任务就是定义服务契约
The service contract specifies what operations the service supports.
服务契约规定了服务能够支持的操作
An operation can be thought of as a Web service method.
一个操作可以看做是一个web服务的方法
Contracts are created by defining a C++, C#, or Visual Basic (VB) interface.
契约是通过创建一个由C++,C#或VB定义的接口
Each method in the interface corresponds to a specific service operation.
接口中的每一个方法都对应到一个指定的服务操作
Each interface must have the ServiceContractAttribute applied to it and each operation must have the OperationContractAttribute attribute applied to it.
每一个接口必须应用service contract,每一个操作必须应用operation contract
If a method within an interface that has the ServiceContractAttribute attribute does not have the OperationContractAttribute attribute, that method is not exposed by the service.
如果有service contract属性的接口中的某一个方法没有operation contract属性,那么这个方法就不会被服务公开。
The code used for this task is provided in the example following the procedure.
用于这个任务的代码如下所示
To define a service contract 定义一个服务契约
- 1.Open Visual Studio 2012 as an administrator by right-clicking the program in the Start menu and selecting Run as administrator.
使用管理员权限打开VS2012
- 2.Create a WCF Service Library project by clicking the File menu and selecting New, Project. In the New Project dialog, on the left-hand side of the dialog expand Visual C# for a C# project or Other Languagesand then Visual Basic for a Visual Basic project. Under the language selected select WCF and a list of project templates will be displayed on the center section of the dialog. Select WCF Service Library, and type GettingStartedLib in the Name textbox and GettingStarted in the Solution name textbox at the bottom of the dialog.
创建一个wcf服务的类库,在新建项目的对话框中,左边选择C#,然后选择wcf,然后选择wcf服务类库。项目名为GettingStartedLib ,解决方案名为GettingStarted
- 3.Visual Studio will create the project which contains 3 files: IService1.cs (or IService1.vb), Service1.cs (or Service1.vb), and App.config. The IService1 file contains a default service contract. The Service1 file contains a default implementation of the service contract. The App.config file contains configuration needed to load the default service with the Visual Studio WCF Service Host. For more information about the WCF Service Host tool, see WCF Service Host (WcfSvcHost.exe)
VS会创建一个包含3个文件的项目:文件分别是IService1.cs,Service1.cs ,App.config。 IService1文件包含了默认的服务契约,Service1文件包含了实现了默认服务契约的代码。配置文件包含了加载默认服务所需要的配置
- 4.Open the IService1.cs or IService1.vb file and delete the code within the namespace declaration leaving the namespace declaration. Inside the namespace declaration define a new interface called ICalculator as shown in the code below.
打开 IService1.cs 文件,删除命名空间内的代码,保留命名空间的声明。在命名空间中定义一个新的接口,接口名称为ICalculator ,接口的代码如下
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.Text; namespace GettingStartedLib
{
[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);
}
}
This contract defines an online calculator. Notice the ICalculator interface is marked with the ServiceContractAttribute attribute. This attribute defines a namespace that is used to disambiguate the contract name. Each calculator operation is marked with the OperationContractAttribute attribute.
Note:
When using attributes to annotate an interface, member, or class, you can drop the "Attribute" part from the attribute name. So ServiceContractAttribute becomes [ServiceContract] in C#, or<ServiceContract> in Visual Basic.
How to: Define a Windows Communication Foundation Service Contract的更多相关文章
- Step1 - How to: Define a Windows Communication Foundation Service Contract
https://msdn.microsoft.com/en-us/library/ms731835.aspx This is the first of six tasks required to cr ...
- How to: Implement a Windows Communication Foundation Service Contract
This is the second of six tasks required to create a basic Windows Communication Foundation (WCF) se ...
- Step2 - How to: Implement a Windows Communication Foundation Service Contract
This is the second of six tasks required to create a basic Windows Communication Foundation (WCF) se ...
- How to: Host and Run a Basic Windows Communication Foundation Service
This is the third of six tasks required to create a Windows Communication Foundation (WCF) applicati ...
- Step3 - How to: Host and Run a Basic Windows Communication Foundation Service
This is the third of six tasks required to create a Windows Communication Foundation (WCF) applicati ...
- How to: Create a Windows Communication Foundation Client
How to: Create a Windows Communication Foundation Client To create a Windows Communication Foundatio ...
- Windows Communication Foundation (WCF)和Windows CardSpace的示例程序
微软公司昨天发布了一个Windows Communication Foundation (WCF)和Windows CardSpace的示例程序包,内容极为丰富,从最简单的Hello World到复杂 ...
- 为应用程序池“XX”提供服务的进程在与 Windows Process Activation Service 通信时出现严重错误
场景 WCF应用程序部署在IIS7中,使用net.tcp协议对外给几百台客户端提供服务,应用程序池不断崩溃重启. 分析过程 在事件查看器中看到的错误信息类似于 为应用程序池“XX”提供服务的进程在与 ...
- Workflow-Microsoft:Windows Workflow Foundation
ylbtech-Workflow-Microsoft:Windows Workflow Foundation 1. Windows Workflow Foundation返回顶部 1.1. Windo ...
随机推荐
- 2.1 JavaScript应用开发实践指南
创建交互层 循环 示例代码如下: var people = family, peopleCount = items.length, i; if(peopleCount>0){ for(i=0; ...
- (转)安装程序发布利器——InstallShield 2011 Limited Edition
最近经常写WCF服务和Windows服务,之前知道可以通过vs2010自带的“安装项目”可以发布程序,但是自vs2010起,同时提供了InstallShield LE. 下面我们通过图示,来了解Ins ...
- 392. Is Subsequence
392. Is Subsequence 水题,先是判断长度,长度t比s小,返回false,然后从左到右扫描t,然后同时扫描s,如果相同,s的index就往后拉一个,如果s的index等于s长度,返回t ...
- Error 1937.An error occurred during the installation of assembly...
工具:Installshield 2008 任务: 1. 创建一个 Merge Module 工程, 在 Merge Module 中包含若干 dll, 在安装过程中,dll 会被安装到指定路径. 2 ...
- apache 工作模式
apache三种工作模式: prefork(2.4前默认)/worker/event(2.4默认)内容整理来自以下网站http://m.blog.csdn.net/article/details?id ...
- 如何编写规范,灵活,稳定,高质量的HTML和css代码
黄金定律 永远遵循同一套编码规范,不管有多少人共同参与同一项目,一定要确保每一行代码都像是同一个人编写的. 语法: 1.用两个空格来代替制表符(tab);2.嵌套元素应当缩进一次(两个空格); 3.对 ...
- 网站重构-你了解AJAX吗?
AJAX是时下最流行的一种WEB端开发技术,而你真正了解它的一些特性吗?--IT北北报 XMLHTTPRequest(XHR)是目前最常用的技术,它允许异步接收和发送数据,所有的主流浏览器都对它有不错 ...
- Yii 配置默认controller和action
设置默认controller 在/protected/config/main.php添加配置 <?php return array( 'name'=>'Auto', 'defaultCon ...
- testlink的下载地址
http://sourceforge.jp/projects/sfnet_testlink/downloads/TestLink%201.9/TestLink%201.9.12/testlink-1. ...
- UML用户指南--UML图简介
本节和大家一起学习一下UML图,这里主要介绍UML结构图和UML行为图两部分,下面让我们一起看一下UML图的详细介绍吧. UML图 这里再次提到对软件体系结构进行可视化.详述.构造和文档化,有5种最重 ...