昨天看了别人的在线升级程序代码，然后复制代码实验了下，发现客户端貌似只能下载文件不能下载文件夹，所以简单的修改了下，循环下载文件夹下的文件
服务器端代码
<%@ WebHandler Language="C#" Class="UpdateSize" %> using System; using System.Web; using System.IO; public class UpdateSize : IHttpHandler { public void ProcessRequest (HttpContext context) { len = 0; string dirPath = context.Server.MapPath("~/AutoUpdater/"); context.Response.ContentType = "text/xml"; context.Response.Expires = -1; context.Response.Write("<?xml version=\"1.0\" encoding=\"utf-8\" ?>"); context.Response.Write("<UpdateSize Size=\"" + GetUpdateSize(dirPath) + "\" />"); context.Response.End(); } /// <summary> /// 获取所有下载文件大小 /// </summary> /// <returns>返回值</returns> static long len = 0; private static long GetUpdateSize(string dirPath) { //判断文件夹是否存在，不存在则退出 if (!Directory.Exists(dirPath)) return 0; DirectoryInfo di = new DirectoryInfo(dirPath); //获取所有文件大小 //foreach (FileInfo fi in di.GetFiles()) foreach (FileSystemInfo fi in di.GetFileSystemInfos()) { //剔除升级数据文件 if (fi.Name != "AutoUpdater.xml") { GetUpdateSize(fi.FullName); FileInfo f = fi as FileInfo; if (f!=null) { len += f.Length; } } } return len; } public bool IsReusable { get { return false; } } }
AutoUpdater目录下的AutoUpdater.xml文件代码
<?xml version="1.0" encoding="utf-8" ?> <AutoUpdater> <UpdateInfo> <!--升级文件的更新日期--> <UpdateTime Date = "2008-09-06"/> </UpdateInfo> <!--升级文件列表--> <UpdateFileList> <UpdateFile>1\3.txt</UpdateFile> </UpdateFileList> <UpdateFileList> <UpdateFile>1\4.txt</UpdateFile> </UpdateFileList> <UpdateFileList> <UpdateFile>1.txt</UpdateFile> </UpdateFileList> <UpdateFileList> <UpdateFile>2.txt</UpdateFile> </UpdateFileList> </AutoUpdater>
客户端代码
using System; using System.ComponentModel; using System.Data; using System.Globalization; using System.IO; using System.Net; using System.Text; using System.Windows.Forms; using System.Xml; using System.Windows.Forms.Design; namespace QWeiXinPrinter { public partial class AutoUpdater : Form { private WebClient downWebClient = new WebClient(); private static string dirPath; private static long size;//所有文件大小 private static int count;//文件总数 private static string[] fileNames; private static int num;//已更新文件数 private static long upsize;//已更新文件大小 private static string fileName;//当前文件名 private static long filesize;//当前文件大小 public AutoUpdater() { InitializeComponent(); } private void AutoUpdater_Load(object sender, EventArgs e) { dirPath = GetConfigValue("conf.config", "Url"); string thePreUpdateDate = GetTheLastUpdateTime(dirPath); string localUpDate = GetConfigValue("conf.config", "UpDate"); if (!String.IsNullOrEmpty(thePreUpdateDate) && !String.IsNullOrEmpty(localUpDate)) { if (DateTime.Compare( Convert.ToDateTime(thePreUpdateDate, CultureInfo.InvariantCulture), Convert.ToDateTime(localUpDate, CultureInfo.InvariantCulture)) > 0) { if (Directory.Exists(Application.StartupPath + "\\"+"AutoUpdater")) { Directory.Move(Application.StartupPath + "\\" + "AutoUpdater", Application.StartupPath + "\\" + "AutoUpdater" + DateTime.Now.Ticks);//备份原先的升级文件 Directory.CreateDirectory(Application.StartupPath + "\\" + "AutoUpdater"); } else { Directory.CreateDirectory(Application.StartupPath + "\\" + "AutoUpdater"); } UpdaterStart(); } else { UpdaterClose(); } } else { UpdaterClose(); } //UpdaterStart(); } /// <summary> /// 开始更新 /// </summary> private void UpdaterStart() { try { float tempf; //委托下载数据时事件 this.downWebClient.DownloadProgressChanged += delegate(object wcsender, DownloadProgressChangedEventArgs ex) { this.label2.Text = String.Format( CultureInfo.InvariantCulture, "正在下载:{0} [ {1}/{2} ]", fileName, ConvertSize(ex.BytesReceived), ConvertSize(ex.TotalBytesToReceive)); filesize = ex.TotalBytesToReceive; tempf = ((float)(upsize + ex.BytesReceived) / size); this.progressBar1.Value = Convert.ToInt32(tempf * 100); this.progressBar2.Value = ex.ProgressPercentage; }; //委托下载完成时事件 this.downWebClient.DownloadFileCompleted += delegate(object wcsender, AsyncCompletedEventArgs ex) { if (ex.Error != null) { MeBox(ex.Error.Message); } else { //if (File.Exists(Application.StartupPath + "\\" + fileName)) //{ // File.Delete(Application.StartupPath + "\\" + fileName); //} //if (File.Exists(Application.StartupPath + "\\" + file_path + fileName)) //{ // File.Delete(Application.StartupPath + "\\" + file_path + fileName); //} if (m_files.Length>1) { if (!Directory.Exists(Application.StartupPath + "\\" + file_path)) { Directory.CreateDirectory(Application.StartupPath + "\\" + file_path); } } File.Copy(loc_path + file_path+fileName, Application.StartupPath + "\\" + file_path+fileName,true); upsize += filesize; if (fileNames.Length > num) { DownloadFile(num); } else { SetConfigValue("conf.config", "UpDate", GetTheLastUpdateTime(dirPath)); UpdaterClose(); } } }; size = GetUpdateSize(dirPath + "UpdateSize.ashx"); if (size == 0) UpdaterClose(); num = 0; upsize = 0; UpdateList(); if (fileNames != null) DownloadFile(0); } catch (Exception ex) { MessageBox.Show(ex.Message); } } /// <summary> /// 获取更新文件大小统计 /// </summary> /// <param name="filePath">更新文件数据XML</param> /// <returns>返回值</returns> private static long GetUpdateSize(string filePath) { long len; len = 0; try { WebClient wc = new WebClient(); Stream sm = wc.OpenRead(filePath); XmlTextReader xr = new XmlTextReader(sm); while (xr.Read()) { if (xr.Name == "UpdateSize") { len = Convert.ToInt64(xr.GetAttribute("Size"), CultureInfo.InvariantCulture); break; } } xr.Close(); sm.Close(); } catch (WebException ex) { MeBox(ex.Message); } return len; } /// <summary> /// 获取文件列表并下载 /// </summary> private static void UpdateList() { string xmlPath = dirPath + "AutoUpdater/AutoUpdater.xml"; WebClient wc = new WebClient(); DataSet ds = new DataSet(); ds.Locale = CultureInfo.InvariantCulture; try { Stream sm = wc.OpenRead(xmlPath); ds.ReadXml(sm); DataTable dt = ds.Tables["UpdateFileList"]; StringBuilder sb = new StringBuilder(); count = dt.Rows.Count; for (int i = 0; i < dt.Rows.Count; i++) { if (i == 0) { sb.Append(dt.Rows[i]["UpdateFile"].ToString()); } else { sb.Append("," + dt.Rows[i]["UpdateFile"].ToString()); } } fileNames = sb.ToString().Split(‘,‘); sm.Close(); } catch (WebException ex) { MeBox(ex.Message); } } /// <summary> /// 下载文件 /// </summary> /// <param name="arry">下载序号</param> string m_file; string[] m_files; string ser_path; string loc_path; string file_path; private void DownloadFile(int arry) { try { num++; file_path = ""; m_file = fileNames[arry]; m_files = m_file.Split(‘\\‘); fileName=m_files[m_files.Length-1]; //fileName = fileNames[arry]; this.label1.Text = String.Format( CultureInfo.InvariantCulture, "更新进度 {0}/{1} [ {2} ]", num, count, ConvertSize(size)); ser_path = dirPath + "AutoUpdater/"; loc_path = Application.StartupPath + "\\AutoUpdater\\"; //string ser_path = dirPath + "AutoUpdater/" + fileName; //string loc_path = Application.StartupPath + "\\AutoUpdater\\" + fileName; this.progressBar2.Value = 0; foreach (string item in m_files) { if (item == m_files[m_files.Length - 1]) { //file_path += item; } else { if (!Directory.Exists(loc_path + file_path + item)) { Directory.CreateDirectory(loc_path + file_path + item); } file_path += item + "\\"; } } this.downWebClient.DownloadFileAsync( new Uri(ser_path+file_path+fileName),loc_path+file_path+fileName); } catch (WebException ex) { MeBox(ex.Message); } } /// <summary> /// 转换字节大小 /// </summary> /// <param name="byteSize">输入字节数</param> /// <returns>返回值</returns> private static string ConvertSize(long byteSize) { string str = ""; float tempf = (float)byteSize; if (tempf / 1024 > 1) { if ((tempf / 1024) / 1024 > 1) { str = ((tempf / 1024) / 1024).ToString("##0.00", CultureInfo.InvariantCulture) + "MB"; } else { str = (tempf / 1024).ToString("##0.00", CultureInfo.InvariantCulture) + "KB"; } } else { str = tempf.ToString(CultureInfo.InvariantCulture) + "B"; } return str; } /// <summary> /// 弹出提示框 /// </summary> /// <param name="txt">输入提示信息</param> private static void MeBox(string txt) { MessageBox.Show( txt, "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Asterisk, MessageBoxDefaultButton.Button1, MessageBoxOptions.DefaultDesktopOnly); } /// <summary> /// 关闭程序 /// </summary> private static void UpdaterClose() { //try //{ // System.Diagnostics.Process.Start(Application.StartupPath + "\\QWeiXinPrinter.exe"); //} //catch (Win32Exception ex) //{ // MeBox(ex.Message); //} //Application.Exit(); } /// <summary> /// 读取.exe.config的值 /// </summary> /// <param name="path">.exe.config文件的路径</param> /// <param name="appKey">"key"的值</param> /// <returns>返回"value"的值</returns> internal static string GetConfigValue(string path, string appKey) { XmlDocument xDoc = new XmlDocument(); XmlNode xNode; XmlElement xElem = null; try { xDoc.Load(path); xNode = xDoc.SelectSingleNode("//appSettings"); xElem = (XmlElement)xNode.SelectSingleNode("//add[@key=\"" + appKey + "\"]"); } catch (XmlException ex) { MeBox(ex.Message); } if (xElem != null) return xElem.GetAttribute("value"); else return ""; } /// <summary> /// 设置.exe.config的值 /// </summary> /// <param name="path">.exe.config文件的路径</param> /// <param name="appKey">"key"的值</param> /// <param name="appValue">"value"的值</param> internal static void SetConfigValue(string path, string appKey, string appValue) { XmlDocument xDoc = new XmlDocument(); try { xDoc.Load(path); XmlNode xNode; XmlElement xElem1; XmlElement xElem2; xNode = xDoc.SelectSingleNode("//appSettings"); xElem1 = (XmlElement)xNode.SelectSingleNode("//add[@key=\"" + appKey + "\"]"); if (xElem1 != null) xElem1.SetAttribute("value", appValue); else { xElem2 = xDoc.CreateElement("add"); xElem2.SetAttribute("key", appKey); xElem2.SetAttribute("value", appValue); xNode.AppendChild(xElem2); } xDoc.Save(Application.StartupPath + "\\" + path); } catch (XmlException ex) { MeBox(ex.Message); } } /// <summary> /// 判断软件的更新日期 /// </summary> /// <param name="Dir">服务器地址</param> /// <returns>返回日期</returns> private static string GetTheLastUpdateTime(string Dir) { string LastUpdateTime = ""; string AutoUpdaterFileName = Dir + "AutoUpdater/AutoUpdater.xml"; try { WebClient wc = new WebClient(); Stream sm = wc.OpenRead(AutoUpdaterFileName); XmlTextReader xml = new XmlTextReader(sm); while (xml.Read()) { if (xml.Name == "UpdateTime") { LastUpdateTime = xml.GetAttribute("Date"); break; } } xml.Close(); sm.Close(); } catch (WebException ex) { MeBox(ex.Message); } return LastUpdateTime; } } }