public IActionResult Message(SendMessageDto model) { if (!ModelState.IsValid) { return(View(model)); } var link = redis.ExistUrlBackLink("receive_msg", model.RequestUrl); if (!string.IsNullOrEmpty(link)) { return(Redirect(link)); } SendMessage(model); TempData["Message"] = "添加成功,请稍后查看...."; return(RedirectToAction("Index")); }