Spring MVC redirect url 不带参数

@RequestMapping(value = "/loginFail", produces = "application/json;charset=UTF-8")
	public String  loginFail(RedirectAttributes attr ,HttpServletResponse response,HttpServletRequest request) {
		attr.addFlashAttribute("failureMessage", "用户名或密码错误");
		return "redirect:login";
	}

 用RedirectAttributes.addFlashAttribute就可以做到了