基于 Spring MVC 的站点(注解控制器)上的状态消息 [英] Status messages on the Spring MVC-based site (annotation controller)

问题描述

使用注解控制器在基于 Spring MVC 的站点上组织状态消息(您的数据已成功保存/添加/删除")的最佳方法是什么?

What is the best way to organize status messages ("Your data has been successfully saved/added/deleted") on the Spring MVC-based site using annotation controller?

因此，问题在于控制器中从 POST 方法发送消息的方式.

So, the issue is in the way of sending the message from POST-method in contoller.

推荐答案

正如 muanis 所提到的，从 spring 3.1 开始，最好的方法是使用 RedirectAttributes.我在博客中给出的示例中添加了 i18n.所以这将是一个完整的样本.

As mentioned by muanis, since spring 3.1, the best approach would be to use RedirectAttributes. I added i18n to the sample given in the blog. So this would be a complete sample.

@RequestMapping("/users")
@Controller
public class UsersController {

            @Autowired
            private MessageSource messageSource;

            @RequestMapping(method = RequestMethod.POST, produces = "text/html")
            public String create(@Valid User user, BindingResult bindingResult, Model uiModel, HttpServletRequest httpServletRequest, Locale locale, RedirectAttributes redirectAttributes) {
                ...
                ...
                redirectAttributes.addFlashAttribute("SUCCESS_MESSAGE", messageSource.getMessage("label_user_saved_successfully", new String[] {user.getUserId()}, locale));
                return "redirect:/users/" + encodeUrlPathSegment("" + user.getId(), httpServletRequest);
            }
    ...
    ...
}

在您的消息包中添加适当的消息，例如 messages.properties.

Add appropriate message in your message bundle, say messages.properties.

label_user_saved_successfully=Successfully saved user: {0}

编辑您的 jspx 文件以使用相关属性

Edit your jspx file to use the relevant attribute

<c:if test="${SUCCESS_MESSAGE != null}">
  <div id="status_message">${SUCCESS_MESSAGE}</div>
</c:if> 

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