<&@ webhandler Language="C#" class="FileManager" &> using System; using System.Collections; using System.Web; using System.IO; using System.Text.RegularExpressions; using LitJson; using System.Collections.Generic; public class FileManager : IHttpHandler { public void ProcessRequest(HttpContext context) { String aspxUrl = context.Request.Path.Substring(0, context.Request.Path.LastIndexOf("/") + 1); //根目录路径,相对路径 String rootPath = "~/attached/"; //根目录URL,可以指定绝对路径,比如 http://www.yoursite.com/attached/ String rootUrl ="/attached/"; //图片扩展名 String fileTypes = "gif,jpg,jpeg,png,bmp"; String currentPath = ""; String currentUrl = ""; String currentDirPath = ""; String moveupDirPath = ""; //根据path参数,设置各路径和URL String path = context.Request.QueryString["path"]; path = String.IsNullOrEmpty(path) ? "" : path; if (path == "") { currentPath = context.Server.MapPath(rootPath); currentUrl = rootUrl; currentDirPath = ""; moveupDirPath = ""; } else { currentPath = context.Server.MapPath(rootPath) + path; currentUrl = rootUrl + path; currentDirPath = path; moveupDirPath = Regex.Replace(currentDirPath, @"(.*?)[^\/]+\/$", "$1"); } //排序形式,name or size or type String order = context.Request.QueryString["order"]; order = String.IsNullOrEmpty(order) ? "" : order.ToLower(); //不允许使用..移动到上一级目录 if (Regex.IsMatch(path, @"\.\.")) { context.Response.Write("Access is not allowed."); context.Response.End(); } //最后一个字符不是/ if (path != "" && !path.EndsWith("/")) { context.Response.Write("Parameter is not valid."); context.Response.End(); } //目录不存在或不是目录 if (!Directory.Exists(currentPath)) { context.Response.Write("Directory does not exist."); context.Response.End(); } //遍历目录取得文件信息 string[] dirList = Directory.GetDirectories(currentPath); string[] fileList = Directory.GetFiles(currentPath); switch (order) { case "size": Array.Sort(dirList, new NameSorter()); Array.Sort(fileList, new SizeSorter()); break; case "type": Array.Sort(dirList, new NameSorter()); Array.Sort(fileList, new TypeSorter()); break; case "name": default: Array.Sort(dirList, new NameSorter()); Array.Sort(fileList, new NameSorter()); break; } Hashtable result = new Hashtable(); result["moveup_dir_path"] = moveupDirPath; result["current_dir_path"] = currentDirPath; result["current_url"] = currentUrl; result["total_count"] = dirList.Length + fileList.Length; List dirFileList = new List(); result["file_list"] = dirFileList; for (int i = 0; i < dirList.Length; i++) { DirectoryInfo dir = new DirectoryInfo(dirList[i]); Hashtable hash = new Hashtable(); hash["is_dir"] = true; hash["has_file"] = (dir.GetFileSystemInfos().Length > 0); hash["filesize"] = 0; hash["is_photo"] = false; hash["filetype"] = ""; hash["filename"] = dir.Name; hash["datetime"] = dir.LastWriteTime.ToString("yyyy-MM-dd HH:mm:ss"); dirFileList.Add(hash); } for (int i = 0; i < fileList.Length; i++) { FileInfo file = new FileInfo(fileList[i]); Hashtable hash = new Hashtable(); hash["is_dir"] = false; hash["has_file"] = false; hash["filesize"] = file.Length; hash["is_photo"] = (Array.IndexOf(fileTypes.Split(','), file.Extension.Substring(1).ToLower()) >= 0); hash["filetype"] = file.Extension.Substring(1); hash["filename"] = file.Name; hash["datetime"] = file.LastWriteTime.ToString("yyyy-MM-dd HH:mm:ss"); dirFileList.Add(hash); } context.Response.AddHeader("Content-Type", "application/json; charset=UTF-8"); context.Response.Write(JsonMapper.ToJson(result)); context.Response.End(); public class NameSorter : IComparer { public int Compare(object x, object y) { if (x == null && y == null) { return 0; } if (x == null) { return -1; } if (y == null) { return 1; } FileInfo xInfo = new FileInfo(x.ToString()); FileInfo yInfo = new FileInfo(y.ToString()); return xInfo.FullName.CompareTo(yInfo.FullName); } } public class SizeSorter : IComparer { public int Compare(object x, object y) { if (x == null && y == null) { return 0; } if (x == null) { return -1; } if (y == null) { return 1; } FileInfo xInfo = new FileInfo(x.ToString()); FileInfo yInfo = new FileInfo(y.ToString()); return xInfo.Length.CompareTo(yInfo.Length); } } public class TypeSorter : IComparer { public int Compare(object x, object y) { if (x == null && y == null) { return 0; } if (x == null) { return -1; } if (y == null) { return 1; } FileInfo xInfo = new FileInfo(x.ToString()); FileInfo yInfo = new FileInfo(y.ToString()); return xInfo.Extension.CompareTo(yInfo.Extension); } } public bool IsReusable { get { return true; } } }