最近，拿到的專案程式碼是用WPF寫的。C/S結構的東西更新起來不太方便。於是，就決定做個自動更新程式吧。軟體本身是用VS2010寫的WPF版本的，所以更新程式也就決定用WPF來做吧。雖說，以前用WinForm做過，感覺應該是差不多。可實際操作過程中間，還是碰到了一些不太一樣的地方吧。不過，原理都是一樣一樣滴。

　　這裡，只是更新程式的程式碼，至於版本判斷的方法，方式多多吧。這裡的更新程式，需要放在軟體主程式同目錄下，而且我把客戶端的版本號放在了軟體的配置檔案中了。在更新完成後會去修改裡邊的版本資訊。至於，zip包的解壓，引用了ICSharpCode.SharpZipLib.dll，網上很多下載的。

　　App.xaml.cs程式碼

using System; using System.Collections.Generic; using System.Configuration; using System.Data; using System.Linq; using System.Windows; namespace AutoUpdate { /// <summary> /// App.xaml 的互動邏輯 /// </summary> public partial class App : Application { //重寫OnStartup，獲得啟動程式 protected override void OnStartup(StartupEventArgs e) { if (e.Args != null && e.Args.Count() > 0) { this.Properties["startexe"] = e.Args[0]; this.Properties["version"] = e.Args[1]; } base.OnStartup(e); } } }

　　MainWindow.xaml.cs程式碼

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Windows; using System.Windows.Controls; using System.Windows.Data; using System.Windows.Documents; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Imaging; using System.Windows.Navigation; using System.Windows.Shapes; using System.Net; using System.Configuration; using System.IO; using System.Diagnostics; using System.Xml; using ICSharpCode.SharpZipLib.Zip; namespace AutoUpdate { /// <summary> /// MainWindow.xaml 的互動邏輯 /// </summary> public partial class MainWindow : Window { //更新包地址 private string url = ""; //檔名字 private string filename = ""; //下載檔案存放全路徑 private string filepath = ""; //更新後開啟的程式名 string startexe = ""; //新版本號 string version = ""; public MainWindow() { InitializeComponent(); pgbUpdate.Maximum = 3; if (Application.Current.Properties["startexe"] != null) { startexe = Application.Current.Properties["startexe"].ToString().Trim(); } if (Application.Current.Properties["version"] != null) { version = Application.Current.Properties["version"].ToString().Trim(); } } private void Window_Activated(object sender, EventArgs e) { pgbUpdate.Value++; url = ConfigurationSettings.AppSettings["Url"].Trim(); if (url != "") { filename = url.Substring(url.LastIndexOf("/") + 1); //下載檔案存放在臨時資料夾中 filepath = Environment.GetEnvironmentVariable("TEMP") + @"/" + filename; if (filename != "") { try { KillExeProcess(); DownloadFile(); UnZipFile(); UpdateVersionInfo(); OpenUpdatedExe(); writeLog("更新成功！"); } catch (Exception ex) { writeLog(ex.Message); } } else { writeLog("更新失敗：下載的檔名為空！"); return; } } else { writeLog("更新失敗：未在App.config中指定需要下載的檔案位置！"); } if (File.Exists(filepath)) { File.Delete(filepath); } this.Close(); } /// <summary> /// 殺掉正在執行的需要更新的程式 /// </summary> private void KillExeProcess() { //字尾起始位置 int startpos = -1; try { if (startexe != "") { if (startexe.EndsWith(".EXE")) { startpos = startexe.IndexOf(".EXE"); } else if (startexe.EndsWith(".exe")) { startpos = startexe.IndexOf(".exe"); } foreach (Process p in Process.GetProcessesByName(startexe.Remove(startpos))) { p.Kill(); } } } catch (Exception ex) { throw new Exception("清殺原程式程序出錯：" + ex.Message); } } private void pgbUpdate_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e) { pgbUpdate.Dispatcher.Invoke(new Action<DependencyProperty, object>(pgbUpdate.SetValue), System.Windows.Threading.DispatcherPriority.Background, ProgressBar.ValueProperty, pgbUpdate.Value); } /// <summary> /// 下載更新包 /// </summary> public void DownloadFile() { pgbUpdate.Value++; WebClient client = new WebClient(); try { Uri address = new Uri(url); if (File.Exists(filepath)) { File.Delete(filepath); } client.DownloadFile(address, filepath); } catch (Exception ex) { throw new Exception("下載更新檔案出錯：" + ex.Message); } } private void UpdateVersionInfo() { try { Configuration cfa = ConfigurationManager.OpenExeConfiguration(startexe); cfa.AppSettings.Settings["Version"].Value = version; cfa.Save(); } catch (Exception ex) { throw new Exception("更新版本資訊出錯：" + ex.Message); } } /// <summary> /// 開啟更新後的程式 /// </summary> private void OpenUpdatedExe() { try { if (ConfigurationManager.AppSettings["StartAfterUpdate"] == "true" && startexe != "") { Process openupdatedexe = new Process(); openupdatedexe.StartInfo.FileName = startexe; openupdatedexe.Start(); } } catch (Exception ex) { throw new Exception("開啟更新後程序出錯：" + ex.Message); } } #region 不好用 /// <summary> /// 解壓壓縮包，格式必須是*.zip,否則不能解壓 /// 需要新增System32下的Shell32.dll /// 不好用總是彈出來對話方塊 /// </summary> //private void UnZip() //{ // try // { // ShellClass sc = new ShellClass(); // Folder SrcFolder = sc.NameSpace(filepath); // Folder DestFolder = sc.NameSpace(System.Environment.CurrentDirectory); // FolderItems items = SrcFolder.Items(); // DestFolder.CopyHere(items, 16); // } // catch (Exception ex) // { // MessageBox.Show("解壓縮更新包出錯：" + ex.Message, "提示資訊", MessageBoxButton.OK, MessageBoxImage.Error); // } //} #endregion #region 解壓zip /// <summary> /// 解壓壓縮包，格式必須是*.zip,否則不能解壓 /// </summary> /// <returns></returns> private void UnZipFile() { pgbUpdate.Value++; try { using (ZipInputStream zis = new ZipInputStream(File.OpenRead(filepath))) { ZipEntry theEntry; while ((theEntry = zis.GetNextEntry()) != null) { string directoryName = System.IO.Path.GetDirectoryName(theEntry.Name); string zipfilename = System.IO.Path.GetFileName(theEntry.Name); if (directoryName.Length > 0 && !Directory.Exists(directoryName)) { Directory.CreateDirectory(directoryName); } if (zipfilename != String.Empty) { using (FileStream streamWriter = File.Create(theEntry.Name)) { int size = 2048; byte[] data = new byte[2048]; while (true) { size = zis.Read(data, 0, data.Length); if (size > 0) { streamWriter.Write(data, 0, size); } else { break; } } } } } } } catch (Exception ex) { throw new Exception("解壓縮更新包出錯：" + ex.Message); } } #endregion private void writeLog(string str) { string strLog = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + " " + str + "/r/n"; StreamWriter errorlog = new StreamWriter(System.IO.Path.Combine(Environment.CurrentDirectory, @"log.txt"), true); errorlog.Write(strLog); errorlog.Flush(); errorlog.Close(); } } }

　　更新程式的App.config

<?xml version="1.0" encoding="utf-8" ?> <configuration> <appSettings> <!--更新包下載地址，注意要是zip--> <add key="Url" value=""/> <!--更新完畢是否啟動--> <add key="StartAfterUpdate" value="false"/> </appSettings> </configuration>