ASP.NET网站版本自动更新程序及代码[转]

1、自动更新程序主要负责从服务器中获取相应的更新文件，并且把这些文件下载到本地，替换现有的文件。达到修复Bug，更新功能的目的。用户手工点击更新按钮启动更新程序。已测试。
2、环境VS2008，采用C#.NET和ASP.NET实现。
3、服务器：提供下载文件，发布出去。 文件包括：dll, xml,aspx等格式文件。其中update.xml 是记录更新文件的。
4、客户端：项目里面添加一个autoupdate.xml 文件，该文件里有连接服务器的发布更新文件的服务器地址。当客户端里userupdate.xml文件里的版本号和服务器中update.xml里的版本号对比，如果服务器的版本号高，提醒客户端更新。
5、源代码如下所示。

1）、服务端发布至IIS如下图所示。

 图1

 

其中bin目录下的dll文件属性写入打勾。

图2

Update.xml源码如下所示。

 

代码

< update >
    < version > 1.0.1.9 version >      
    < datetime > 2009-12-14  datetime >        
    < filelist  filescount ="5"  itemcount ="11"  sourcepath ="http://Localhost/UpdateServ/" >

    < file  filesname =""   >  
    < item  name ="xiaxia.txt"  size ="" >  
     item >
    file >
 
   < file  filesname ="UpFile" >  
     < item  name ="2222.dll"  size ="" >  
     item >  
     < item  name ="1162193918505.doc"  size ="" >   
     item >  
     < item  name ="xd.doc"  size ="" >  
     item >  
     < item  name ="s2.txt"  size ="" >  
     item >
     < item  name ="a.dll"  size ="" >  
     item >
     < item  name ="WebUPFILE.dll"  size ="" >  
     item >
   file >


< file  filesname ="test" >  

< item  name ="aa.txt"  size ="" >   
item >  
< item  name ="2.txt"  size ="" >   
item >  
file >


< file  filesname ="Copy" >


< item  name ="bb.doc"  size ="" >   
item >
< item  name ="b.dll"  size ="" >  
item >
file >  


< file  filesname ="hehe" >

< item  name ="hehe.txt"  size ="" >  
item >
< item  name ="WebUPFILE.dll"  size ="" >  
item >
file >  

filelist >  
update >  

 

 

2）、客户端代码，结构如下图所示。

图3

代码内有注释，在此不再多说。

Config.cs

 

代码

using  System;
using  System.Collections.Generic;
using  System.Linq;
using  System.Text;
using  System.IO;
using  System.Xml;

namespace  WebUpdate
{
     public   class  Config
    {
         public   string  url  =   null ;
         public   string  cmd  =   null ;

         // 读文件autoUpdate.xml
         public  Config()
        {
             string  path  =  AppDomain.CurrentDomain.BaseDirectory  +   " autoUpdate.xml " ;

             try
            {
                 if  (path  !=   null )
                {
                    XmlDocument xmlDoc  =   new  XmlDocument();
                    xmlDoc.Load(path);
                    url  =  xmlDoc.SelectSingleNode( " /update/url " ).InnerText;

                }
            }
             catch  (Exception ex)
            {
                 throw   new  Exception( " 找不到autoUpdate.xml文件 "   +  ex.Message);

            }
        }

         // 获取服务器的版本
         public  Version GetServerVersion()
        {
            XmlDocument xmlDoc  =   new  XmlDocument();
            xmlDoc.Load(url);
             return   new  Version(xmlDoc.SelectSingleNode( " /update/version " ).InnerText);
        }

         // 获取客户端版本
         public   string  GetClientVersion()
        {
            url  =  AppDomain.CurrentDomain.BaseDirectory  +   " userVersion.xml " ;
            XmlDocument xmlUser  =   new  XmlDataDocument();
            xmlUser.Load(url);
            XmlElement root  =  xmlUser.DocumentElement;
            XmlNode updateNode  =  root.SelectSingleNode( " version " );
             string  version  =  updateNode.Attributes[ " value " ].Value;
             return  version;

        }

         // 为了进行版本比较，进行转换为整数比较
         public   int  ConvertVersion( string  value)
        {
             int  w, z, x, y, temp;
            w  =   int .Parse(value.Substring( 0 ,  1 ));
            z  =   int .Parse(value.Substring( 2 ,  1 ));
            x  =   int .Parse(value.Substring( 4 ,  1 ));
            y  =   int .Parse(value.Substring( 6 ,  1 ));
            temp  =  w  *   1000   +  z  *   100   +  x  *   10   +  y;
             return  temp;
        }

         // 更新客户版本号为服务器的版本号
         public   string  UpdateVersion( string  serVersion)
        {
            url  =  AppDomain.CurrentDomain.BaseDirectory  +   " userVersion.xml " ;
            XmlDocument xmlUser  =   new  XmlDataDocument();
            xmlUser.Load(url);
            XmlElement root  =  xmlUser.DocumentElement;
            XmlNode updateNode  =  root.SelectSingleNode( " version " );
             string  strVer  =  updateNode.Attributes[ " value " ].Value;
            updateNode.Attributes[ " value " ].Value  =  serVersion;
            xmlUser.Save(url);
             return  serVersion;
        }

    }
}

DownFile.cs

 

代码

using  System;
using  System.Collections.Generic;
using  System.Linq;
using  System.Text;
using  System.Net;
using  System.IO;


namespace  WebUpdate
{
     public   class  DownFile
    {
         // 从服务器下载文件,若目录存在，直接复制新文件，不存在则新建目录并复制文件，成功后返回1
         public   bool  DownFileFromServ( string  url,  string  fileName)
        {
             bool  downsucess  =   false ;
             try
            {
                 string  fileExtraName  =  url.Split( char .Parse( " . " ))[ 0 ];                               // 文件名
                 string  fileAfterName  =  System.IO.Path.GetExtension(url);                 // 文件的扩展名
                 if  (fileAfterName  ==   " .aspx " )
                    url  =  fileAfterName  +   " .txt " ;
                HttpWebRequest myReq  =  (HttpWebRequest)WebRequest.Create(url);
                myReq.KeepAlive  =   true ;
                HttpWebResponse myRes  =  (HttpWebResponse)myReq.GetResponse();

                downsucess  =   this .CopyFileAndDirectory(myRes, fileName);

            }
             catch  (Exception e)
            {
                Console.WriteLine(e.ToString());
            }

             return  downsucess;
        }

         // 返回复制文件或创建目录是否成功
         public   bool  CopyFileAndDirectory(WebResponse myResp,  string  fileName)
        {
             bool  flag  =   true ;
             byte [] buffer  =   new   byte [ 0x400 ];
             try
            {
                 int  num;
                 // 若本身已有该目录则删除
                 if  (System.IO.File.Exists(fileName))
                {
                    System.IO.File.Delete(fileName);
                }
                 // 创建目录更新到Updat目录下
                 string  directoryName  =  Path.GetDirectoryName(fileName);
                 if  ( ! Directory.Exists(directoryName))
                {
                    Directory.CreateDirectory(directoryName);
                }

                 // 指定文件fileName不存在时创建它
                Stream streamRead  =  System.IO.File.Open(fileName, FileMode.Create);

                Stream responseStream  =  myResp.GetResponseStream();

                 do
                {
                     // 从当前读取的字节流数,复制
                    num  =  responseStream.Read(buffer,  0 , buffer.Length);
                     if  (num  >   0 )
                    {
                        streamRead.Write(buffer,  0 , num);
                    }
                }
                 while  (num  >   0 );
                streamRead.Close();
                responseStream.Close();
            }
             catch
            {
                flag  =   false ;
            }

             return  flag;

        }

    }
}

 

Update.cs

 

代码

using  System;
using  System.Collections.Generic;
using  System.Linq;
using  System.Text;
using  System.Xml;

namespace  WebUpdate
{
     public   class  Update
    {
         // 从服务器文件update.xml中获取要下载的文件列表
         public   bool  flag  =   false ;

         public   string [] GetFileList( string  url)
        {
            XmlDocument xmlDoc  =   new  XmlDocument();
            xmlDoc.Load(url);
            XmlElement root  =  xmlDoc.DocumentElement;
            XmlNode updateNode  =  root.SelectSingleNode( " filelist " );
             string  soucePath  =  updateNode.Attributes[ " sourcepath " ].Value;

             string  fileName  =   null ;
             string  fileList  =   null ;
             // 取出服务器里update.xml里更新的file文件
            XmlNodeList fileNode  =  updateNode.SelectNodes( " file " );
             if  (fileNode  !=   null )
            {
                 foreach  (XmlNode i  in  fileNode)
                {
                     foreach  (XmlNode j  in  i)
                    {
                         if  (i.Attributes[ " filesname " ].Value  !=   "" )
                            fileName  =  soucePath  +  i.Attributes[ " filesname " ].Value  +   " / "   +  j.Attributes[ " name " ].Value  +
                                 " $ "   +  i.Attributes[ " filesname " ].Value  +   " / "   +  j.Attributes[ " name " ].Value;
                         else
                            fileName  =  soucePath  +  j.Attributes[ " name " ].Value  +
                                 " $ "   +  j.Attributes[ " name " ].Value;

                        fileName  +=   " , " ;
                        fileList  +=  fileName;
                    }
                }

                 string [] splitFile  =  fileList.Split( ' , ' );
                flag  =   true ;
                 return  splitFile;
            }
             return   null ;
        }

    }
}

 

 

autoUpdate.xml

 

< update >
   < url > http://Localhost/UpdateServ/update.xml url >
update >

 

 

userVersion.xml

 

xml version="1.0" encoding="utf-8" ?>
< update >
   < version  value ="1.0.1.9" > 客户端版本号 version >
update >

 

 

Update.aspx

 

代码

<% @ Page Language = " C# "  AutoEventWireup = " true "   CodeFile = " Update.aspx.cs "  Inherits = " _Default "   %>    
  
DOCTYPE html PUBLIC  " -//W3C//DTD XHTML 1.0 Transitional//EN "   " http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd " >    
  
< html xmlns = " http://www.w3.org/1999/xhtml " >    
< head runat = " server " >    
     < title > 自动更新 title >    
head >    
< body >    
     < form id = " form1 "  runat = " server " >    
     < div >    
       
         < br  />    
         < br  />    
                                                                          
         < asp:Label ID = " lblDisplay "  runat = " server "  style = " text-align: center "  mce_style = " text-align: center "     
            Text = " Label "  Visible = " False " > asp:Label >    
         < br  />    
         < br  />    
                                                              
         < asp:Button ID = " btnUpdate "  runat = " server "  style = " text-align: center "  mce_style = " text-align: center "     
            Text = " 更新 "  onclick = " btnUpdate_Click "  Visible = " False "  Height = " 34px "     
            Width = " 145px "   />    
         < br  />    
                              
       
         < br  />    
         < asp:Label ID = " NewVersion "  runat = " server "  Text = " Label1 "  Visible = " false " > asp:Label >    
         < br  />    
         < br  />    
         < asp:Label ID = " CurrentVersion "  runat = " server "  Text = " Label2 "  Visible = " false " > asp:Label >    
       
     div >    
     form >    
body >    
html >   

 

Update.aspx.cs

 

代码

using  System;
using  System.Configuration;
using  System.Data;
using  System.Linq;
using  System.Web;
using  System.Web.Security;
using  System.Web.UI;
using  System.Web.UI.HtmlControls;
using  System.Web.UI.WebControls;
using  System.Web.UI.WebControls.WebParts;
using  System.Xml.Linq;
using  WebUpdate;

public   partial   class  _Default : System.Web.UI.Page 
{
     protected   void  Page_Load( object  sender, EventArgs e)
    {
        lblDisplay.Text  =   "" ;
        btnUpdate.Visible  =   false ;


        Config cf  =   new  Config();

        NewVersion.Text  =  cf.GetServerVersion().ToString();
        CurrentVersion.Text  =  cf.GetClientVersion().ToString();

         int  clientversion  =  cf.ConvertVersion(CurrentVersion.Text);
         int  serverversion  =  cf.ConvertVersion(NewVersion.Text);
         if  (serverversion  >  clientversion)
        {
            btnUpdate.Visible  =   true ;
        }
         else
        {
            lblDisplay.Text  =   " 已是最新版本，不需要更新！ " ;
            lblDisplay.Visible  =   true ;
        }

    }
     protected   void  btnUpdate_Click( object  sender, EventArgs e)
    {
         string  url  =   null ;
         string [] files  =   null ;
        Config updatecf  =   new  Config();
        url  =  updatecf.url;
        Update upd  =   new  Update();
        files  =  upd.GetFileList(url);

        UpdateFile(files);

        CurrentVersion.Text  =  updatecf.UpdateVersion(NewVersion.Text);

        lblDisplay.Text  =   " 更新完成。 " ;
        lblDisplay.Visible  =   true ;
        btnUpdate.Visible  =   false ;

    }

     private   void  UpdateFile( string [] files)
    {
         if  ((files  ==   null )  ||  (files.Length  <=   0 ))
        {
            Response.Write( " 升级完成 " );
        }
         else
        {
             int  num  =   0 ;
             for  ( int  i  =   0 ; i  <  files.Length; i ++ )
            {
                 string  str  =  files[i];
                 if  ((str  !=   null )  &&  (str.Split( new   char [] {  ' $ '  }).Length  ==   2 ))
                {
                     string [] strArray  =  str.Split( new   char [] {  ' $ '  });
                     this .UpdateFile(strArray[ 0 ], strArray[ 1 ]);
                    num ++ ;
                }
            }
             if  (num  ==   0 )
            {
                Response.Write( " 升级完成 " );
            }
        }
    }

     private   void  UpdateFile( string  url,  string  filename)
    {
         string  fileName  =  AppDomain.CurrentDomain.BaseDirectory  +  filename;
         try
        {
            DownFile file  =   new  DownFile();
             bool  flag  =  file.DownFileFromServ(url, fileName);
        }
         catch
        {

        }
    }
}

转载于:https://www.cnblogs.com/PingleDay/p/3494350.html