ASP.NET MVC使用JSAjaxFileUploader插件实现单文件上传_实用技巧_

 public class UploadFileResult { public string FileName { get; set; } public int Length { get; set; } public string Type { get; set; } public bool IsValid { get; set; } public string Message { get; set; } public string FilePath { get; set; } }

 #region 上传单个文件 //显示 public ActionResult Index() { return View(); } //接收上传 [HttpPost] public ActionResult UploadFile() { List results = new List(); foreach (string file in Request.Files) { HttpPostedFileBase hpf = Request.Files[file] as HttpPostedFileBase; if (hpf.ContentLength == 0 || hpf == null) { continue; } var fileName = DateTime.Now.ToString("yyyyMMddhhmmss") + hpf.FileName.Substring(hpf.FileName.LastIndexOf('.')); string pathForSaving = Server.MapPath("~/AjaxUpload"); if (this.CreateFolderIfNeeded(pathForSaving)) { hpf.SaveAs(Path.Combine(pathForSaving, fileName)); results.Add(new UploadFileResult() { FilePath = Url.Content(String.Format("~/AjaxUpload/{0}", fileName)), FileName = fileName, IsValid = true, Length = hpf.ContentLength, Message = "上传成功", Type = hpf.ContentType }); } } return Json(new { name = results[0].FileName, type = results[0].Type, size = string.Format("{0} bytes", results[0].Length), path = results[0].FilePath, msg = results[0].Message }); } #region 共用方法 /// 
 /// 检查是否要创建上传文件夹，如果没有就创建 /// 
 /// 路径 ///  private bool CreateFolderIfNeeded(string path) { bool result = true; if (!Directory.Exists(path)) { try { Directory.CreateDirectory(path); } catch (Exception) { //TODO：处理异常 result = false; } } return result; } //根据文件名称删除文件 [HttpPost] public ActionResult DeleteFileByName(string name) { string pathForSaving = Server.MapPath("~/AjaxUpload"); System.IO.File.Delete(Path.Combine(pathForSaving, name)); return Json(new { msg = true }); } #endregion