public partial class update : Form
{
private WebClient client;
int downfilenum = 0; //已下载文件数
int downlistnum = 0;//总下载文件数
List<string> list;
private string URl;
private string fileName;
private const string applicationFile = "Setup";
public update()
{
InitializeComponent();
}
//检测网络状态
[DllImport("wininet.dll")]
private extern static bool InternetGetConnectedState(out int connectionDescription, int reservedValue);
private void update_Load(object sender, EventArgs e)
{
if (isConnected())
{
client = new WebClient();
client.DownloadProgressChanged += new DownloadProgressChangedEventHandler(client_DownloadProgressChanged);
client.DownloadFileCompleted += new AsyncCompletedEventHandler(client_DownloadFileCompleted);
client.Proxy = WebRequest.DefaultWebProxy;
client.Proxy.Credentials = new NetworkCredential();
updateFile();
}
else
{
lblMsg.Text = "网络连接异常，请联系管理员处理";
}
}
/// <summary>
/// 检测网络状态
/// </summary>
private bool isConnected()
{
int I = 0;
bool state = InternetGetConnectedState(out I, 0);
return state;
}
/// <summary>
/// 获取xml文件，判断是否升级
/// </summary>
/// <param name="Dir"></param>
/// <returns></returns>
private string getSoftUpdate()
{
if (!File.Exists(Application.StartupPath + @"\update.xml"))
{
return "nofile";
}
DateTime newDateTime;
try
{
SrmUpdate.updateSoapClient s = new SrmUpdate.updateSoapClient();
newDateTime = Convert.ToDateTime(s.GetSoftUpDateTime());//获取服务器最新更新日期
}
catch (Exception)
{
throw;
}
DateTime oldDateTime;
XmlDocument doc = new XmlDocument();
doc.Load(Application.StartupPath + @"\update.xml");
oldDateTime = Convert.ToDateTime(doc.SelectSingleNode("/AutoUpdate/SoftUpdateTime").Attributes["Date"].Value);
return newDateTime >= oldDateTime ? "true" : "false";
}
/// <summary>
/// 开始下载文件
/// </summary>
private void updateFile()
{
//判断系统有无更新，如果需要升级系统，开始下载
string isUpdate = getSoftUpdate();
if (isUpdate == "true")
{
lblMsg.Text = "检测到版本有更新，准备升级";
progressBar1.Visible = true;
startDownload();
}
else if (isUpdate == "false")
{
lblMsg.Text = "无需更新，直接启动系统";
runSystem();
}
else if (isUpdate == "nofile")
{
lblMsg.Text = "缺少系统文件，请您联系管理员处理";
}
}
/// <summary>
/// 下载完成调用
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void client_DownloadFileCompleted(object sender, AsyncCompletedEventArgs e)
{
downfilenum++;
if (client != null) { client.CancelAsync(); }
if (downfilenum < downlistnum) downLoadFile(list[downfilenum].ToString()); //下载剩余的
if (downfilenum == downlistnum) { init(); } //初始化
}
//下载某个文件
private void downLoadFile(string fileName)
{
downLoad(URl + fileName, Application.StartupPath + "\temp\" + fileName, true); //异步下载远程文件
}
/// <summary>
/// 下载进度条
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void client_DownloadProgressChanged(object sender, DownloadProgressChangedEventArgs e)
{
int a = e.ProgressPercentage;
progressBar1.Value = a;
lblMsg.Text = a + "% Downloading... ";
}
/// <summary>
/// HTTP下载远程文件并保存本地的函数
/// </summary>
private void downLoad(string downAddress, string savePath, Boolean Async)
{
DirectoryInfo di = Directory.GetParent(savePath);
if (!di.Exists) di.Create();
WebClient client = new WebClient(); //再次new 避免WebClient不能I/O并发
if (Async)
{ //异步下载
client.DownloadProgressChanged += new DownloadProgressChangedEventHandler(client_DownloadProgressChanged);
client.DownloadFileCompleted += new AsyncCompletedEventHandler(client_DownloadFileCompleted);
client.DownloadFileAsync(new Uri(downAddress), savePath);
}
else client.DownloadFile(new Uri(downAddress), savePath);
}
/// <summary>
/// 开始下载
/// </summary>
private void startDownload()
{
SrmUpdate.updateSoapClient ws = new SrmUpdate.updateSoapClient();
URl = ws.GetSoftUpdateUrl();
list = ws.GetSoftUpdateFileList();
downlistnum = list.Count;
fileName = list[0].Substring(list[0].LastIndexOf("/") + 1, list[0].Length - list[0].LastIndexOf("/") - 1);
downLoad(URl + list[0], Application.StartupPath + "\temp\" + fileName, true);
}
private void init()
{
string curdir = Application.StartupPath;
DirectoryInfo theFolder = new DirectoryInfo(curdir + @" emp");
if (theFolder.Exists)
{
copyDirectory(curdir + @" emp", curdir);
}
if (Directory.Exists(curdir + @" emp")) Directory.Delete(curdir + @" emp", true); //删除临时目录
runSystem();
}
/// <summary>
/// 复制文件夹中的所有文件到指定文件夹
/// </summary>
/// <param name="DirectoryPath">源文件夹路径</param>
/// <param name="DirAddress">保存路径</param>
private void copyDirectory(string DirectoryPath, string DirAddress)//复制文件夹，
{
if(!Directory.Exists(DirAddress)) Directory.CreateDirectory(DirAddress);
DirectoryInfo DirectoryArray = new DirectoryInfo(DirectoryPath);
FileInfo[] Files = DirectoryArray.GetFiles();//获取该文件夹下的文件列表
DirectoryInfo[] Directorys = DirectoryArray.GetDirectories();//获取该文件夹下的文件夹列表
foreach (FileInfo theFile in Files)//逐个复制文件
{
//如果临时文件夹下存在与应用程序所在目录下的文件同名的文件，则删除应用程序目录下的文件
if (File.Exists(DirAddress + "\" + Path.GetFileName(theFile.FullName)))
File.Delete(DirAddress + "\" + Path.GetFileName(theFile.FullName));
//将临时文件夹的文件移到应用程序所在的目录下
File.Copy(theFile.FullName, DirAddress + "\" + Path.GetFileName(theFile.FullName));
}
foreach (DirectoryInfo Dir in Directorys)//逐个获取文件夹名称，并递归调用方法本身
{
copyDirectory(DirectoryPath + "\" + Dir.Name, DirAddress + "\" + Dir.Name);
}
}
/// <summary>
/// 启动主程序
/// </summary>
private void runSystem()
{
//启动安装程序
this.lblMsg.Text = "正在启动主程序....";
System.Diagnostics.Process.Start(Application.StartupPath + @"SRMClientAppLoader.exe");
this.Close();
}
}