public ActionResult AddFriend(int FriendID) { Friend entity = new Friend(); entity.FriendID = FriendID; entity.UserInfoID = LoginUser.ID; entity.DelFlag = true; entity.RegTime = DateTime.Now; entity.Status = 1; var user = FriendService.GetEntity(u => u.FriendID == FriendID && u.UserInfoID == LoginUser.ID).FirstOrDefault(); if (user == null) { FriendService.Add(entity); return(Json(new { status = 1, msg = "成功" })); } return(Json(new { status = 0, msg = "你们已经是好友了!!" })); }