public void CollectFile(string AID)
        {
            int    ret    = 0;
            string UserID = CommonUtil.GetSession(Session, "id");

            try
            {
                if (string.IsNullOrEmpty(UserID)) //用户未登录
                {
                    ret = 3;
                }
                else
                {
                    using (JSZX_ResourceEntities db = new JSZX_ResourceEntities())
                    {
                        int i = db.T_MyCollection.Count(t => t.USERID.Equals(UserID) && t.AID.Equals(AID) && t.IS_DEL == false);
                        if (i > 0) //已收藏了的,不能再收藏
                        {
                            ret = 2;
                        }
                        else
                        {
                            T_MyCollection model = new T_MyCollection();
                            model.ID         = Guid.NewGuid().ToString();
                            model.USERID     = UserID;
                            model.AID        = AID;
                            model.CreateTime = DateTime.Now;
                            model.IS_DEL     = false;
                            db.T_MyCollection.Add(model);
                            db.SaveChanges();
                            ret = 1;
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                clsLog.ErrorLog("MineController", "CollectFile", "Error! " + ex.Message);
            }
            finally
            {
                /**返回js (0:收藏失败;1:收藏成功;2:已收藏;3:用户未登录。)**/
                HttpContext.Response.Write(ret.ToString());
            }
        }
        public void DeleteMyCollect(string myId)
        {
            bool ret = false;

            try
            {
                using (JSZX_ResourceEntities db = new JSZX_ResourceEntities())
                {
                    T_MyCollection model = db.T_MyCollection.First(t => t.ID == myId);
                    model.IS_DEL = true;
                    db.SaveChanges();
                    ret = true;
                }
            }
            catch (Exception ex)
            {
                clsLog.ErrorLog("MineController", "DeleteMyCollect", "Error! " + ex.Message);
            }
            finally
            {
                HttpContext.Response.Write(ret.ToString().ToLower());
            }
        }