public void ProcessRequest(HttpContext context)

    {

        string esOIDs = System.Web.HttpContext.Current.Request["esOIDs"];

        string userID=System.Web.HttpContext.Current.Session["USER_ID"].ToString();

        context.Response.ContentType = "text/plain";

        context.Response.Charset = "utf-8";

        HttpPostedFile file = context.Request.Files["Filedata"];

        string Path = HttpContext.Current.Server.MapPath(@context.Request["folder"]) + "\\AccessoryFiles";

        if (!Directory.Exists(Path))//判断文件是否存在

        {

            Directory.CreateDirectory(Path);

        }

        if (file != null)

        {

            if (file.ContentLength <=  *  * )//限定文件小于100M

            {

                bool fileOK = false;

                string fileExtension = System.IO.Path.GetExtension(file.FileName).ToLower(); //得到选择文件 扩展名

                string[] allowedExtensions = { ".doc", ".docx", ".ppt", ".pptx", ".xls", ".xlsx", ".pdf",".wmv",".avi", ".gif", ".png", ".bmp", ".jpg", ".mp4", ".rar", ".zip" }; //可上传文件类型列表

                for (int i = ; i < allowedExtensions.LongLength; i++)//判断上传文件是否为上述合法类型

                {

                    if (fileExtension == allowedExtensions[i])

                    {

                        fileOK = true;

                        break;

                    }

                }

                if (fileOK == true)//如果文件格式正确

                {

                    string uploadPath = Path + "\\" + esOIDs;

                    if (!Directory.Exists(uploadPath))//判断文件是否存在

                    {

                        Directory.CreateDirectory(uploadPath);

                    }

                    string fileNewName = DateTime.Now.ToString("yyyyMMddHHmmss") + System.IO.Path.GetExtension(file.FileName).ToLower();

                    file.SaveAs(uploadPath + "\\" + fileNewName);

                    if (!Directory.Exists(uploadPath + "\\" + fileNewName))

                    {

                        AccessoryObj accessoryObj = new AccessoryObj();

                        accessoryObj.REFOID = esOIDs;

                        accessoryObj.ReftypeVal = AccessoryType.项目;

                        accessoryObj.FILENAME = file.FileName;

                        accessoryObj.FILETYPE = fileExtension;

                        accessoryObj.FILEPATH = "FileUpLoad/AccessoryFiles/" + esOIDs + "/" + fileNewName;

                        accessoryObj.UPLOADUSER = userID;

                        accessoryObj.UPLOADDATE = DateTime.Now;

                        List<AccessoryObj> accList = new List<AccessoryObj>();

                        accList.Add(accessoryObj);

                        new AccessoryRepository().AddAccessoryObj(accList);

                    }

                    //下面这句代码缺少的话，上传成功后上传队列的显示不会自动消失

                    context.Response.Write("");

                }

            }

        }

        else

        {

            context.Response.Write("");

        }

    }

    public bool IsReusable

    {

        get

        {

            return false;

        }

    }