图片文件上传

C# code

/// <summary>
    /// 上传图片
    /// </summary>
    /// <param name="caseid">案件号</param>
    /// <param name="twoid">车编号、人编号</param>
    /// <param name="pic">压缩后二进制格式的图片</param>
    /// <param name="picmemo">图片备注</param>
    /// <param name="tablename">存储在数据库中的表名</param>
    /// <param name="filedname">单证类型</param>
    /// <param name="exifTime">EXIF信息</param>
    /// <returns></returns>
    public string CaseUpLoadImage(string caseid, int twoid, byte[] pic,
        string picmemo, string tablename, string filedname,
        string exifTime)
    {
        try
        {
            MyFrame.Base.CompressionHelper ch = new CompressionHelper();
            byte[] images = ch.DecompressToBytes(pic);  //解压
            MemoryStream ms = new MemoryStream(images);
            Bitmap img = new Bitmap(ms);

            string picTmpFilesPath = DateTime.Now.Year.ToString() + DateTime.Now.Month.ToString() + DateTime.Now.Day.ToString();

            string picTmpFiles = picTmpFilesPath + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString() + DateTime.Now.Millisecond.ToString() + ".jpg";

            picTmpFilesPath = Server.MapPath("~/uploadfiles/" + picTmpFilesPath);

            if (!Directory.Exists(picTmpFilesPath))
            {
                Directory.CreateDirectory(picTmpFilesPath);
            }

            picTmpFilesPath = picTmpFilesPath + @"\" + picTmpFiles;

            img.Save(picTmpFilesPath);

            DataOperation mydo = new DataOperation();

            string strsql = "";

            if (filedname != "")
            {
                strsql = "Insert into " + tablename + "(TWOID,CASEID,PICPATH,NOTE,ADDDATE,DZCLASS,EXIFTIME)"
                               + " values (" + twoid + ",'" + caseid + "','" + picTmpFilesPath + "','" + picmemo
                               + "',to_date('" + DateTime.Now.ToString() + "','yyyy-mm-dd hh24-mi-ss'),'" + filedname + "','" + exifTime + "')";
            }
            else
            {
                strsql = "Insert into " + tablename + "(TWOID,CASEID,PICPATH,NOTE,ADDDATE,EXIFTIME)"
                               + " values (" + twoid + ",'" + caseid + "','" + picTmpFilesPath + "','" + picmemo
                               + "',to_date('" + DateTime.Now.ToString() + "','yyyy-mm-dd hh24-mi-ss'),'" + exifTime + "')";
            }
            if (!mydo.SetExeSql(strsql))
            {
                return mydo.ErrInfo;
            }

            return "1";
        }
        catch (Exception ex)
        {
            return ex.Message;
        }
    }

 private void c_OnShangChuan(object sender, EventArgs e)
        {

            UpLoadPic[] abc = uploadimages1.FileNames;
            uploadimages1.ProgressBarMax = abc.Length;
            string a = ""; string b = "";

            for (int i = 0; i < abc.Length; i++)
            {
                a = abc[i].path;
                b = abc[i].exifTime;
                Bitmap bmp = new Bitmap(a);

                string aa = sc.CaseUpLoadImage(caseid, TwoId, 
                    ImageGdi(bmp), "", imagePath, DzClass,b);

                if (aa != "1")
                {
                    uploadimages1.AddSangChuanInfo(aa);
                }
                else
                {
                    uploadimages1.ProgressBarStep(i+1);
                    uploadimages1.AddSangChuanInfo(string.Format("上传{0}图片成功！",abc[i].path));
                }
                Application.DoEvents();
            }
            uploadimages1.AddSangChuanInfo("----------------------------");
            uploadimages1.AddSangChuanInfo("所有图片上传完毕！");
            uploadimages1.UpLoadOver();
            Application.DoEvents();

        }