不懂

aban-mtd

博客专家认证

2009-10-21 03:57:48

怎样上传东西

...全文

139 6 打赏收藏转发到动态举报

写回复

用AI写文章

6 条回复

切换为时间正序

请发表友善的回复…

发表回复

chinaboyzyq 2009-10-22

打赏
举报

资源里上传~~

HooverHuang 2009-10-21

打赏
举报

给你点上传代码



        /// <summary>

        /// 创建一个随机的文件名

        /// </summary>

        /// <param name="extension"></param>

        /// <returns></returns>

        public static string CreateRandomFileName(string exfilename,string extension) {

            Random rnd = new Random((int)DateTime.Now.Ticks);

            //Random rnd = new Random();

            string rndFileName = rnd.Next(1,100).ToString();

            //rndFileName = rndFileName.Substring(0, 6);

            //return exfilename + DateTime.Now.ToString("yyyyMMddhhmmss") + rndFileName + extension;

            return exfilename + DateTime.Now.ToString("yyyyMMddhhmmss") + rndFileName;

        }







 public static bool UploadFile(HttpPostedFile file, string uploadpath,string exfilename,out string saveAsFileName, out string errorMessage) {

                       

            string fname = Path.GetFileName(file.FileName);

			

			saveAsFileName = "";

            errorMessage = "";            



            if (fname.Length > 0) {

                //bool allowed = IsAllowedFileExtension(fname);

                //if (!allowed) {

                //    errorMessage = "文件的扩展名不符合要求：" + fname;

                //    return false;

                //}



                //if (!CheckSize(file,Config.fileSize)) {

                //    errorMessage = "文件超出规定大小，不能超过"+Config.fileSize+"K";

                //    return false;

                //}



                string extension = fname.Substring(fname.LastIndexOf("."));



                saveAsFileName = CreateRandomFileName(exfilename, extension) + fname;

                try {

                    string path = uploadpath + "\\" + saveAsFileName;

                    file.SaveAs(path);

                } catch (Exception ex) {

                    errorMessage = "上传文件失败：" + fname;

                    throw ex;

                }

                return true;

            } else {

                errorMessage = "您选择的上传文件不包含有效的文件名。";

                return false;

            }

		}