Csharp使用FTP实现客户端程序自动更新

C#使用FTP实现客户端程序自动更新最近做的一个项目中需要用到客户端自动更新功能，最初的想法是利用ClickOnce技术来完成，但在实践中发现根本行不能，原因如下：1）项目应用到了DevExpress控件包，用ClickOnce发布的自动更新程序，客户在安装时报在GAC中找不到控件dll的错。2）ClickOnce安装无法实现根据用户安装时录入的参数（比如数据库服务器名、数据库用户名和密码等）来动态修改配置文件的功能。3）最后一下其实不重要了，就是ClickOnce无法实现用户自定义安装文件夹。 最后决定放弃使用ClickOnce,使用ftp方式进行，实现思路如下：用户启动程序时，先运行update.exe，该文件会自动比较本地配置文件和ftp服务器上配置文件的异同，会自动下载上次更新后变化的文件以及新加入的文件。（因为都是基本配置文件，所以开发了一个配置文件生成工具，用户只需要选择根目录后，就会自动生成配置文件。）文件下载结束后，再启动实际的客户端程序。1using System; 2using System.Collections.Generic; 3using System.Diagnostics; 4using System.IO; 5using System.Net; 6using System.Threading; 7using System.Windows.Forms; 8 9namespace Update 10 11 /*/ 12 / Description: 13 / Author: ZhangRongHua 14 / Create DateTime: 2009-6-21 12:25 15 / UpdateHistory: 16 / 17 public partial class frmUpdate : Form 18 19 Fields#region Fields 20 21 private const string CONFIGFILE = update.xml; 22 private const string UPDATEDIR = PMS; 23 private string appPath = Application.StartupPath; 24 private List errorList = new List(); 25 private string locFile = String.Concat(Application.StartupPath, , CONFIGFILE); 26 private string tmpUpdateFile = TmpUpdate.xml; 27 private List updateList; 28 private string updateTmpPath = string.Concat(Path.GetTempPath(), , UPDATEDIR); 29 private string url = String.Empty; 30 31 private FTP ftp = null; 32 33 #endregion 34 35 Delegates#region Delegates 36 37 public delegate void AsycDownLoadFile(string srcFile, string destFile, int i); 38 39 public delegate void ExecuteUpdateFiles(string srcPath, string destPath); 40 41 public delegate void UpdateComplete(); 42 43 public delegate void UpdateUI(int i, string message); 44 45 #endregion 46 47 public event UpdateComplete OnUpdateComplete; 48 49 Constructor#region Constructor 50 51 public frmUpdate() 52 53 InitializeComponent(); 54 OnUpdateComplete += new UpdateComplete(frmUpdate_OnUpdateComplete); 55 56 57 #endregion 58 59 Event Handler#region Event Handler 60 61 private void frmUpdate_Load(object sender, EventArgs e) 62 63 if(Directory.Exists(updateTmpPath) 64 65 Directory.Delete(updateTmpPath, true); 66 67 68 / 如果有主程序启动，则关闭 69 Process ps = Process.GetProcesses(); 70 foreach (Process p in ps) 71 72 /MessageBox.Show(p.ProcessName); 73 if (p.ProcessName.ToLower() = wat.pms.winform) 74 75 p.Kill(); 76 break; 77 78 79 80 GetUpdateFiles(); 81 82 83 private void frmUpdate_OnUpdateComplete() 84 85 ExecuteUpdateFiles dExecuteUpdateFiles = new ExecuteUpdateFiles(ExecuteUpdate); 86 Invoke(dExecuteUpdateFiles, new object updateTmpPath, appPath); 87 88 89 private void frmUpdate_Shown(object sender, EventArgs e) 90 91 Thread updateThread = new Thread(new ThreadStart(DownLoadUpdateFiles); 92 updateThread.SetApartmentState(ApartmentState.STA); 93 updateThread.IsBackground = true; 94 Thread.Sleep(500); 95 updateThread.Start(); 96 97 98 99100 #endregion101102 Private Methods#region Private Methods103104 /*/ 105 / 将目标文件替换为本地文件106 / 107 / Author:ZhangRongHua 108 / Create DateTime: 2009-6-21 10:28109 / Update History: 110 / 111 / 112 / The SRC file.113 / The dest file.114 private void DownLoadFile(string srcFile, string destFile)115 116 if(ftp = null )117 118 ftp = new FTP(Updater.URL, , Updater.User, Updater.Password);119 120121 122123 if(!ftp.Connected)124 125 MessageBox.Show(无法连接远程服务器，无法更新程序, 提示, MessageBoxButtons.OK, MessageBoxIcon.Information);126 Process.Start(Updater.MainProgram);127 Close();128 129 130131 / 得到服务器端的配置文件132 ftp.Get(srcFile, updateTmpPath, destFile);133134 135 136 137138 /*/ 139 / 得到需要更新的文件清单140 / 141 / Author:ZhangRongHua 142 / Create DateTime: 2009-6-21 10:29143 / Update History: 144 / 145 / 146 private void GetUpdateFiles()147 148 Updater.GetBaseInfo(locFile);149 url = Updater.URL;150 string svrFile = String.Concat(url, CONFIGFILE);151152 if (String.IsNullOrEmpty(svrFile)153 154 BroadCastOnUpdateComplete();155 return;156 157158 Directory.CreateDirectory(updateTmpPath);159 try160 161 DownLoadFile(CONFIGFILE, tmpUpdateFile);162 163 catch (Exception ex)164 165 MessageBox.Show(无法连接远程服务器，无法更新程序, 提示, MessageBoxButtons.OK, MessageBoxIcon.Information);166 Process.Start(Updater.MainProgram);167 Close();168 169170 updateList = Updater.GetUpdateFileList(locFile, tmpUpdateFile);171 if (updateList = null | updateList.Count 1)172 173 BroadCastOnUpdateComplete();174 return;175 176177 pbUpdate.Maximum = updateList.Count;178 pbUpdate.Minimum = 0;179 lblInfo.Text = String.Concat(updateList.Count, 个文件需要更新!);180 lblInfo.BringToFront();181 lblState.BringToFront();182 lblInfo.Update();183184 pbUpdate.Maximum = updateList.Count;185 pbUpdate.Minimum = 0;186187 for (int i = 0; i updateList.Count; i+)188 189 string file = updateList;190 ListViewItem lvItem = new ListViewItem();191 lvItem.Text = file;192 lvItem.SubItems.Add(Updater.MainProgramVersion);193 lvUpdateList.Items.Add(lvItem);194 195 196197 private void UpdateUIInfo(int i, string message)198 199 pbUpdate.Value = i + 1;200 lblState.Text = message;201 lblState.Update();202 203204 private void BroadCastOnUpdateComplete()205 206 if (OnUpdateComplete != null)207 208 OnUpdateComplete();209 210 211212 private void DownLoadUpdateFiles()213 214 if (updateList = null | updateList.Count 1)215 216 BroadCastOnUpdateComplete();217 return;218 219220 try221 222 UpdateUI dUpdateUI = new UpdateUI(UpdateUIInfo);223 AsycDownLoadFile dAsycDownLoadFile = new AsycDownLoadFile(DownLoadFile);224 for (int i = 0; i updateList.Count; i+)225 226 string file = updateList;227 string destFile = String.Concat(updateTmpPath, , file);228 string destFileName = destFile.Substring(destFile.LastIndexOf(/) + 1);229 string srcFile = String.Concat(url, file);230 var srcFileName = file.Trim(/);231 destFile = destFile.Replace(/, );232 Directory.CreateDirectory(destFile.Substring(0, destFile.LastIndexOf();233 string curentFile = String.Concat(正在更新第, i + 1, /, updateList.Count, 个, file);234 235 Invoke(dAsycDownLoadFile, new object srcFileName, srcFileName, i );236 Thread.Sleep(50);237 Invoke(dUpdateUI, new object i, curentFile);238 239 240 catch (Exception ex)241 242 Debug.WriteLine(ex.Message);243 244245 BroadCastOnUpdateComplete();246 247248 249250 private void CopyUpdateFiles(string srcPath, string destPath)251 252 string files = Directory.GetFiles(srcPath);253 for (int i = 0; i files.Length; i+)254 255 string srcFile = files;256 string destFile = string.Concat(destPath, , Path.GetFileName(srcFile);257 try258 259 File.Copy(srcFile, destFile, true);260 261 catch (System.IO.IOException ex)262 263 264 265 266 267 268269 string dirs = Directory.GetDirectories(srcPath);270 for (int i = 0; i dirs.Length; i+)271 272 srcPath = dirs;273 string tmpDestPath = String.Concat(destPath, , Path.GetFileName(srcPath);274 Directory.CreateDirectory(tmpDestPath);275 CopyUpdateFiles(srcPath, tmpDestPath);276 277 278279280281 /*/ 282 / 更新完成后，要执行的动作（将下载的文件从临时目录复制到主目录，重启主程序）283 / 284 / Author:ZhangRongHua 285 / Create DateTime: 2009-6-21 12:25286 / Update History: 287 / 288 / 289 / The SRC path.290 / The dest path.291 private void ExecuteUpdate(string srcPath, string destPath)292 293 if (errorList != null & errorList.Count 1)294 295 lblInfo.Text = 正在执行更新;296 lblInfo.Update();297 CopyUpdateFiles(srcPath, destPath);298 File.Copy(tmpUpdateFile, locFile, true);299 300 Process.Start(Updater.MainProgram);301302 Close();303 304305 private void DownLoadFile(string srcFile, string destFile, ListViewItem lvItem)306 307 try308 309 DownLoadFile(srcFile, destFile);310 lvItem.SubItems.Add(Ok);311 312 catch (Exception ex)313 314 Debug.WriteLine(ex.Message);315 lvItem.SubItems.Add(fail);316 ErrorInfo errorInfo = new ErrorInfo();317 errorInfo.File = srcFile;318 errorInfo.ErrorLevel = ErrorLevel.Serious;319 errorInfo.Message = ex.Message;320 errorList.Add(errorInfo);321 322 323324 private void DownLoadFile(string srcFile, string destFile, int i)325 326 ListViewItem lvItem = lvUpdateList.Items;327328 lvUpdateList.Items.EnsureVisible();329 try330 331 DownLoadFile(srcFile, destFile);332 lvItem.SubItems.Add(Ok);333 334 catch (Exception ex)335 336 Debug.WriteLine(ex.Message);337 lvItem.SubItems.Add(fail);338 ErrorInfo errorInfo = new ErrorInfo();339 errorInfo.File = srcFile;340 errorInfo.ErrorLevel = ErrorLevel.Serious;341 errorInfo.Message = ex.Message;342 errorList.Add(errorInfo);343 MessageBox.Show(destFile);344 345 346347 #endregion348 349