UEditor上传自定义文件夹

UEditor上传自定义文件夹

需求：使用UEditor上传时需要知道具体到哪个章节得图片，所以得根据Session中得文件重新定义

修改Handler类：

public HttpSessionState Session {get; private set; }

找到上下问得Session：

public Handler(HttpContext context) { this.Request = context.Request; this.Response = context.Response; this.Context = context; this.Server = context.Server; this.Session = context.Session; }

在controller.ashx中添加

public class UEditorHandler : IHttpHandler,System.Web.SessionState.IRequiresSessionState

实现方法：

public bool IsReusable { get { return false; } }

由于截屏后得图片得名字都一样所以需要随机生成：

在UploadHandler添加：

//var savePath = PathFormatter.Format(uploadFileName, UploadConfig.PathFormat); //截屏过来的图片文件名固定，固定名称换成随机数 //if (uploadFileName == "image.png") uploadFileName = random.Next(100000).ToString("D5")+".png"; var zhang = Session[""]; var jie = 2; // Session[""]; var xiaojie = 3; // Session[""]; var savePath = string.Format("upload/image/{0:00}{1:00}{2:00}/{3}", zhang, jie, xiaojie, uploadFileName);

生成得文件就到了自定义得目录下：

如果想其他UEditor走以前得方法做一个判断：

var savePath = PathFormatter.Format(uploadFileName, UploadConfig.PathFormat); //截屏过来的图片文件名固定，固定名称换成随机数 //if (uploadFileName == "image.png") //章节内容编辑上传图片，路径名加章节号，文件名称随机 if (Session["zhangClass"] != null) { uploadFileName = random.Next(100000).ToString("D5") + ".png"; int zhang = Convert.ToInt32(Session["zhangClass"]); int jie = Convert.ToInt32(Session["jieClass"]); int xiaojie = Convert.ToInt32(Session["xiaojieClass"]); savePath = string.Format("upload/image/{0:00}{1:00}{2:00}/{3}", zhang, jie, xiaojie, uploadFileName); }

截屏图片的处理：

private static string GenerateImageFileName(string uploadFileName, string folder) { string[] files = Directory.GetFiles(folder); List fileLenths =new List(); for (int i = 0; i < files.Count(); i++) { var fileLenth = files[i].Substring(files[i].LastIndexOf(@"\") + 1); var fileLenthNew = fileLenth.Substring(0, fileLenth.LastIndexOf(".")); fileLenths.Add(fileLenthNew); } var allNames = from file in fileLenths where file.Length==5 //&& Regex.IsMatch(file, @"^\d{5}\.+$") orderby file select file; int num=0; if (allNames.Count() > 0) { var last = allNames.Last(); if (last == null) return 1.ToString("D5"); //num = Convert.ToInt32(last.Substring(0, last.IndexOf("."))); num = Convert.ToInt32(last); } return (num + 1).ToString("D5"); //随机生成 //{ // //uploadFileName = random.Next(100000).ToString("D5") // // + uploadFileName.Substring(uploadFileName.LastIndexOf("."));//".png"; //} }

判断是否为int

public static bool IsNumeric(string str) { if (str == null || str.Length == 0) //验证这个参数是否为空 return false; //是，就返回False ASCIIEncoding ascii = new ASCIIEncoding();//new ASCIIEncoding 的实例 byte[] bytestr = ascii.GetBytes(str); //把string类型的参数保存到数组里 foreach (byte c in bytestr) //遍历这个数组里的内容 { if (c < 48 || c > 57) //判断是否为数字 { return false; //不是，就返回False } } return true; //是，就返回True }

汉字转拼音：

private static string NormalizeImageFileName(string uploadFileName, string folder) { string uploadNum= uploadFileName.Substring(0, uploadFileName.LastIndexOf(".")); if (IsNumeric(uploadNum) == true) { return uploadFileName; } else { string pingyin = uploadFileName.Replace(" ", "").Replace("+", ""); var pingyins = PinYinConverterHelp.GetTotalPingYin(uploadFileName); pingyin = String.Join(",", pingyins.TotalPingYin); return pingyin; } }

拼音扩展类：（nuget安装程序包ChnCharInfo）

public class PinYinConverterHelp { public static PingYinModel GetTotalPingYin(string str) { var chs = str.ToCharArray(); //记录每个汉字的全拼 Dictionary> totalPingYins = new Dictionary>(); for (int i = 0; i < chs.Length; i++) { var pinyins = new List(); var ch = chs[i]; //是否是有效的汉字 if (ChineseChar.IsValidChar(ch)) { ChineseChar cc = new ChineseChar(ch); pinyins = cc.Pinyins.Where(p => !string.IsNullOrWhiteSpace(p)).ToList(); } else { pinyins.Add(ch.ToString()); } //去除声调，转小写 pinyins = pinyins.ConvertAll(p => Regex.Replace(p, @"\d", "").ToLower()); //去重 pinyins = pinyins.Where(p => !string.IsNullOrWhiteSpace(p)).Distinct().ToList(); if (pinyins.Any()) { totalPingYins[i] = pinyins; } } PingYinModel result = new PingYinModel(); foreach (var pinyins in totalPingYins) { var items = pinyins.Value; if (result.TotalPingYin.Count <= 0) { result.TotalPingYin = items; result.FirstPingYin = items.ConvertAll(p => p.Substring(0, 1)).Distinct().ToList(); } else { //全拼循环匹配 var newTotalPingYins = new List(); foreach (var totalPingYin in result.TotalPingYin) { newTotalPingYins.AddRange(items.Select(item => totalPingYin + item)); } newTotalPingYins = newTotalPingYins.Distinct().ToList(); result.TotalPingYin = newTotalPingYins; //首字母循环匹配 var newFirstPingYins = new List(); foreach (var firstPingYin in result.FirstPingYin) { newFirstPingYins.AddRange(items.Select(item => firstPingYin + item.Substring(0, 1))); } newFirstPingYins = newFirstPingYins.Distinct().ToList(); result.FirstPingYin = newFirstPingYins; } } return result; } } public class PingYinModel { public PingYinModel() { TotalPingYin = new List(); FirstPingYin = new List(); } //全拼 public List TotalPingYin { get; set; } //首拼 public List FirstPingYin { get; set; } }

这样有重复的就可以删除：

try { if (!string.IsNullOrEmpty(oldPath)) { File.Delete(Server.MapPath(oldPath)); } } catch (Exception) { throw new ArgumentOutOfRangeException("删除原文件，如果不能删除不做处理!!"); //删除原文件，如果不能删除不做处理!! }

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