using System; using System.Web; using System.IO; using System.Net; using System.Xml; using System.Collections; using System.Windows.Forms; using System.ComponentModel; namespace AutoUpdate { /// /// updater 的摘要说明。 /// public class AppUpdater:IDisposable { #region 成员与字段属性 private string _updaterUrl; private string _updaterUrl1; private bool disposed = false; private IntPtr handle; private Component component = new Component(); [System.Runtime.InteropServices.DllImport("Kernel32")] private extern static Boolean CloseHandle(IntPtr handle); public string UpdaterUrl { set{_updaterUrl = value;} get{return this._updaterUrl;} } public string UpdaterUrl1 { set { _updaterUrl1 = value; } get { return this._updaterUrl1; } } #endregion /// /// AppUpdater构造函数 /// public void Dispose() { Dispose(true); GC.SuppressFinalize(this); } private void Dispose(bool disposing) { if(!this.disposed) { if(disposing) { component.Dispose(); } CloseHandle(handle); handle = IntPtr.Zero; } disposed = true; } ~AppUpdater() { Dispose(false); } /// /// 检查更新文件 /// /// /// /// /// public int CheckForUpdate(string serverXmlFile,string localXmlFile,out Hashtable updateFileList) { updateFileList = new Hashtable(); if(!File.Exists(localXmlFile) || !File.Exists(serverXmlFile)) { return -1; } XmlFiles serverXmlFiles = new XmlFiles(serverXmlFile); XmlFiles localXmlFiles = new XmlFiles(localXmlFile); XmlNodeList newNodeList = serverXmlFiles.GetNodeList("AutoUpdater/Files"); XmlNodeList oldNodeList = localXmlFiles.GetNodeList("AutoUpdater/Files");//5+1+a+s+p+x int k = 0; for(int i = 0;i < newNodeList.Count;i++) { string [] fileList = new string[4]; string newFileName = newNodeList.Item(i).Attributes["Name"].Value.Trim(); string newVer = newNodeList.Item(i).Attributes["Ver"].Value.Trim(); string newUpdateTxt = newNodeList.Item(i).Attributes["UpdateTxt"].Value.Trim(); ArrayList oldFileAl = new ArrayList(); for(int j = 0;j < oldNodeList.Count;j++) { string oldFileName = oldNodeList.Item(j).Attributes["Name"].Value.Trim(); string oldVer = oldNodeList.Item(j).Attributes["Ver"].Value.Trim(); string oldUpdateTxt = oldNodeList.Item(j).Attributes["UpdateTxt"].Value.Trim(); oldFileAl.Add(oldFileName); oldFileAl.Add(oldVer); } int pos = oldFileAl.IndexOf(newFileName); if(pos == -1) { fileList[0] = newFileName; fileList[1] = newVer; fileList[3] = newUpdateTxt; updateFileList.Add(k,fileList); k++; } else if(pos > -1 && newVer.CompareTo(oldFileAl[pos+1].ToString())>0 ) { fileList[0] = newFileName; fileList[1] = newVer; fileList[3] = newUpdateTxt; updateFileList.Add(k,fileList); k++; } } return k; } /// /// 检查更新文件 /// /// /// /// /// public int CheckForUpdate() { string localXmlFile = Application.StartupPath + "\\UpdateList.xml"; if(!File.Exists(localXmlFile)) { return -1; } XmlFiles updaterXmlFiles = new XmlFiles(localXmlFile ); string tempUpdatePath = Environment.GetEnvironmentVariable("Temp") + "\\"+ "_"+ updaterXmlFiles.FindNode("//Application").Attributes["applicationId"].Value+"_"+"y"+"_"+"x"+"_"+"m"+"_"+"\\"; this.UpdaterUrl = updaterXmlFiles.GetNodeValue("//Url") + "/UpdateList.xml"; this.DownAutoUpdateFile(tempUpdatePath); string serverXmlFile = tempUpdatePath +"\\UpdateList.xml"; if(!File.Exists(serverXmlFile)) { return -1; } XmlFiles serverXmlFiles = new XmlFiles(serverXmlFile); XmlFiles localXmlFiles = new XmlFiles(localXmlFile); XmlNodeList newNodeList = serverXmlFiles.GetNodeList("AutoUpdater/Files"); XmlNodeList oldNodeList = localXmlFiles.GetNodeList("AutoUpdater/Files"); int k = 0; for(int i = 0;i < newNodeList.Count;i++) { string [] fileList = new string[3]; string newFileName = newNodeList.Item(i).Attributes["Name"].Value.Trim(); string newVer = newNodeList.Item(i).Attributes["Ver"].Value.Trim(); ArrayList oldFileAl = new ArrayList(); for(int j = 0;j < oldNodeList.Count;j++) { string oldFileName = oldNodeList.Item(j).Attributes["Name"].Value.Trim(); string oldVer = oldNodeList.Item(j).Attributes["Ver"].Value.Trim(); oldFileAl.Add(oldFileName); oldFileAl.Add(oldVer); } int pos = oldFileAl.IndexOf(newFileName); if(pos == -1) { fileList[0] = newFileName; fileList[1] = newVer; k++; } else if(pos > -1 && newVer.CompareTo(oldFileAl[pos+1].ToString())>0 ) { fileList[0] = newFileName; fileList[1] = newVer; k++; } } return k; } /// /// 返回下载更新文件的临时目录 /// /// public void DownAutoUpdateFile(string downpath) { if(!System.IO.Directory.Exists(downpath)) System.IO.Directory.CreateDirectory(downpath); string serverXmlFile = downpath+@"/UpdateList.xml"; string serverXmlFile1 = downpath + @"/Update.xml"; try { WebRequest req = WebRequest.Create(this.UpdaterUrl); WebResponse res = req.GetResponse(); if(res.ContentLength >0) { try { WebClient wClient = new WebClient(); wClient.DownloadFile(this.UpdaterUrl,serverXmlFile); wClient.DownloadFile(this.UpdaterUrl1, serverXmlFile1); } catch { return; } } } catch { return; } //return tempPath; } } }