WCF实现客户端自动更新

IServiceUpdate

 using System.IO;
 using System.ServiceModel;
 using System.ServiceModel.Web;

 namespace ServiceUpdater
 {
     // 注意: 使用“重构”菜单上的“重命名”命令，可以同时更改代码和配置文件中的接口名“IServiceUpdate”。
     [ServiceContract]
     public interface IServiceUpdate
     {
         [OperationContract, WebInvoke(Method = "GET", UriTemplate = "SyncTool/{fileName}")]
         Stream SyncTool(string fileName);

         [OperationContract, WebInvoke(Method = "POST", RequestFormat = WebMessageFormat.Json)]
         Stream DownloadFile(PostData postData);
     }

     public class PostData
     {
         public string CustomerCode { get; set; }
         public string Token { get; set; }
         public string Mac { get; set; }
         public string Filename { get; set; }
     }
 }

ServiceUpdate

 using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Runtime.Serialization;
 using System.ServiceModel;
 using System.ServiceModel.Web;
 using System.Text;
 using log4net;

 namespace ServiceUpdater
 {
     // 注意: 使用“重构”菜单上的“重命名”命令，可以同时更改代码和配置文件中的类名“ServiceUpdate”。
     public class ServiceUpdate : IServiceUpdate
     {
         public Stream SyncTool(string fileName)
         {
             string basePath = AppDomain.CurrentDomain.BaseDirectory + "Release\\SyncTool\\";
             string downloadFileName = basePath + fileName;
             if (File.Exists(downloadFileName) && WebOperationContext.Current != null)
             {
                 var fileExt = Path.GetExtension(downloadFileName);
                 switch (fileExt.ToLower())
                 {
                     case ".js":
                         WebOperationContext.Current.OutgoingResponse.ContentType = "text/javascript";
                         break;
                     case ".css":
                         WebOperationContext.Current.OutgoingResponse.ContentType = "text/css";
                         break;
                     case ".html":
                     case ".htm":
                         WebOperationContext.Current.OutgoingResponse.ContentType = "text/html";
                         break;
                 }
                 LogManager.GetLogger(this.GetType()).Info("File downloaded = " + downloadFileName);
                 return File.OpenRead(downloadFileName);
             }
             return null;
         }

         public Stream DownloadFile(PostData postData)
         {
             if (postData != null
                 && !string.IsNullOrEmpty(postData.CustomerCode)
                 && !string.IsNullOrEmpty(postData.Token)
                 && !string.IsNullOrEmpty(postData.Mac)
                 && !string.IsNullOrEmpty(postData.Filename))
             {
                 string downFilename = AppDomain.CurrentDomain.BaseDirectory + "Release\\" + postData.CustomerCode + "\\" + postData.Filename;
                 if (File.Exists(downFilename))
                 {
                     LogManager.GetLogger(this.GetType()).Info(
                         "File download = " + downFilename
                         + Environment.NewLine + "CustomerCode = " + postData.CustomerCode
                         + Environment.NewLine + "Token = " + postData.Token
                         + Environment.NewLine + "Mac = " + postData.Mac);
                     return File.OpenRead(downFilename);
                 }
             }
             return null;
         }
     }
 }