ASP.NET文件上传

  //普通文件的上传

        protected void btnUpload_Click(object sender, EventArgs e)

        {

            string fullFileName = this.FileUpload1.PostedFile.FileName;

            string fileName = fullFileName.Substring(fullFileName.LastIndexOf("//") + 1);

            this.FileUpload1.PostedFile.SaveAs(Server.MapPath("upload") + "//" + fileName);

        }

 

        //图片的上传

        protected void btnUploadImage_Click(object sender, EventArgs e)

        {

            string fullFileName = this.FileUpload2.PostedFile.FileName;

            string fileName = fullFileName.Substring(fullFileName.LastIndexOf("//") + 1);

            string fileType = fullFileName.Substring(fullFileName.LastIndexOf(".") + 1);

            if(fileType == "gif" || fileType == "jpg" || fileType == "png")

            {

                this.FileUpload2.PostedFile.SaveAs(Server.MapPath("upload") + "//" + fileName);

                Response.Write("上传成功");

            }

            else

            {

                Response.Write("<script language='javascript'>alert('您的上传文件有误！！！');</script>");

            }

        }