WCF入门（五）---创建WCF服务

使用Microsoft Visual Studio2012创建WCF服务，理解如下所有必要的编码，更好地创建WCF服务的概念，这里做一个简单的任务。

启动Visual Studio 2012。
单击新建项目，然后在Visual C＃标签，选择WCF选项。

WCF服务创建，执行如加法，减法，乘法和除法基本的算术运算。主要的代码是在两个不同的文件 - 一个接口和一个类。

一个WCF中包含一个或多个接口和实现类。

	
using System; using System.Collections.Generic; using System.Linq; using System.Runtime.Serialization; using System.ServiceModel; using System.Text; namespace WcfServiceLibrary1 { //NOTE: You can use the "Rename" command on the "Refactor" menu to change the  //interface name "IService1" in both code and config file together. [ServiceContract] Public interface IService1 { [OperationContract] int sum(int num1, int num2); [OperationContract] int Subtract(int num1, int num2); [OperationContract] int Multiply(int num1, int num2); [OperationContract] int Divide(int num1, int num2); } //Use a data contract as illustrated in the sample below to add composite types  //to service operations. [DataContract] Public class CompositeType { Bool boolValue = true; String stringValue = "Hello "; [DataMember] Public bool BoolValue { get { return boolValue; } set { boolValue = value; } } [DataMember] Public string StringValue { get { return stringValue; } set { stringValue = value; } } } }

而其后面是类的代码，

using System;
usingSystem.Collections.Generic; usingSystem.Linq; usingSystem.Runtime.Serialization; usingSystem.ServiceModel; usingSystem.Text; namespace WcfServiceLibrary1 { //NOTE: You can use the "Rename" command on the "Refactor" menu to change the  //class name "Service1" in both code and config file together. publicclassService1 :IService1 { /// This Function Return summation of two integer numbers publicint sum(int num1, int num2) { return num1 + num2; } ///This function returns subtraction of two numbers.  ///If num1 is smaller than number two then this function returns 0. publicint Subtract(int num1, int num2) { if (num1 > num2) { return num1 - num2; } else { return 0; } } ///This function returns multiplication of two integer numbers. publicint Multiply(int num1, int num2) { return num1 * num2; } ///This function returns integer value of two integer number.  ///If num2 is 0 then this function returns 1. publicintDivide(int num1, int num2) { if (num2 != 0) { return (num1 / num2); } else { return 1; } } } }