C# 下实现在线升级

//这是一个webservice
private AppUpdate.UpdateServ UpdateSvr;
private void button1_Click(object sender, System.EventArgs e)
{
if(LinkWebServices()==true)
{
this.label1.Text=“连接服务器....... PASS“;
if(CheckVer()==true)
{
this.label2.Text=“检查最新版本并下载.......PASS“;
}
else
{
this.label2.Text=“检查最新版本并下载.......FAIL“;
}
}
else
{
this.label1.Text=“连接服务器.......FAIL“;
}
}
//这是用来与升级服务器建立连接
private bool LinkWebServices()
{
try
{
UpdateSvr=new UpdateServ();
return true;
}
catch
{
return false;
}
}
//调用webservice用来检查是不是有最新的版本
private bool CheckVer()
{
string path =Application.StartupPath;
try
{
VersionCheck(path);
return true;
}
catch(Exception ex)
{
MessageBox.Show(ex.ToString());
return false;
}
}
private void VersionCheck(string desPath)
{
try
{
#region 查看文件和目录
if(!desPath.EndsWith(@“\“))
desPath += @“\“;
if(!System.IO.Directory.Exists(desPath))
{
System.IO.Directory.CreateDirectory(desPath);
}
string tempPath = desPath + @“tempDesPathCache\“;
if(System.IO.Directory.Exists(tempPath))
{
System.IO.Directory.Delete(tempPath,true);
System.IO.Directory.CreateDirectory(tempPath);
}
else
System.IO.Directory.CreateDirectory(tempPath);
if(!System.IO.File.Exists(desPath + “UpdateConfig.xml“))
{
System.Xml.XmlDocument updateConfig = new System.Xml.XmlDocument();
updateConfig.LoadXml(@“〈root〉〈/root〉“);
updateConfig.Save(desPath + “UpdateConfig.xml“);
}
#endregion
System.Xml.XmlDocument serverXmlDoc = UpdateSvr.AppUpdateVertion();
System.Xml.XmlDocument localXmlDoc = new System.Xml.XmlDocument();
localXmlDoc.Load(desPath + “UpdateConfig.xml“);
bool newVersionExist = false;
bool moduleExist = false;
System.Xml.XmlNode serverNode0 = serverXmlDoc.ChildNodes[0];
System.Xml.XmlNode localNode0 = localXmlDoc.ChildNodes[0];
foreach(System.Xml.XmlNode serverNode in serverNode0)
{
moduleExist = false;
foreach(System.Xml.XmlNode localNode in localNode0)
{
//找到对应模块
if(localNode.ChildNodes[0].InnerText == serverNode.ChildNodes[0].InnerText)
{
moduleExist = true;
//版本号判断
if(localNode.ChildNodes[1].InnerText.CompareTo(serverNode.ChildNodes[1].InnerText) 〈 0)
{
newVersionExist = true;
if(System.Configuration.ConfigurationSettings.AppSettings[“NetStyle“].ToString()==“internet“)
{
DownloadFile(serverNode.ChildNodes[2].InnerText,tempPath + serverNode.ChildNodes[0].InnerText);
}
else
{
DownloadFile(serverNode.ChildNodes[3].InnerText,tempPath + serverNode.ChildNodes[0].InnerText);
}
}
break;
}
}
//没找到对应模块
if(false == moduleExist)
{
if(System.Configuration.ConfigurationSettings.AppSettings[“NetStyle“].ToString()==“internet“)
{
DownloadFile(serverNode.ChildNodes[2].InnerText,tempPath + serverNode.ChildNodes[0].InnerText);
}
else
{
DownloadFile(serverNode.ChildNodes[3].InnerText,tempPath + serverNode.ChildNodes[0].InnerText);
}
}
}
//写入新UpdateConfig.xml升级完毕后替换
if(newVersionExist)
{
serverXmlDoc.Save(tempPath + “UpdateConfig.xml“);
if(DialogResult.Yes == MessageBox.Show(“有新版本，是否更新?“,“提示“,MessageBoxButtons.YesNo))
{
string[] dirs = System.IO.Directory.GetFiles(tempPath, “*.*“);
string fileName;
foreach (string dir in dirs)
{
fileName = ((dir.Split(Convert.ToChar(@“\“)))[dir.Split(Convert.ToChar(@“\“)).Length - 1]);
if(System.IO.File.Exists(desPath + fileName))
{
//TODO:可以支持备份以前版本
System.IO.File.Delete(desPath + fileName);
}
//TODO:如果系统正在运行，您得停止系统，至于如何停止，也许可以使用System.Diagnostics.Process
System.IO.File.Move(dir,desPath + fileName);
}
MessageBox.Show(“升级完毕“);
}
else
{
//TODO:可以支持重新提示升级
}
}
}
catch(Exception ex)
{
throw new Exception(“升级失败，原因是：“ + ex.Message,ex);
}
}
//下载最新的文件
private void DownloadFile(string source,string fileName)
{
try
{
System.Net.WebClient myWebClient = new System.Net.WebClient();
myWebClient.DownloadFile(source,fileName);
}
catch(Exception ex)
{
throw new Exception(“下载失败，原因是：“ + ex.Message,ex);
}
}