如何在Spring MVC 3.1中重定向后读取flash属性？

<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">
   <property name="messageConverters">
        <list>
            <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"/>
            <bean class="org.springframework.http.converter.StringHttpMessageConverter"/>
        </list>
    </property>
</bean>

@RequestMapping(value = "/save", method = RequestMethod.POST)
public String save(Model model, @ModelAttribute("user") User user, RedirectAttributes redirectAttributes) {
    // 保存用户操作
    redirectAttributes.addFlashAttribute("message", "User saved successfully!");
    return "redirect:/user/list";
}

@RequestMapping(value = "/list", method = RequestMethod.GET)
public String list(Model model, @ModelAttribute("message") String message) {
    // 显示用户列表
    if (message != null) {
        model.addAttribute("message", message);
    }
    return "user/list";
}

<div>${message}</div>