Spring MVC学习笔记（2 ）

   关于控制器Controller，我用一段代码来理解一下@Controller

@RequestMapping("/articles")
public class ArticleController {

	@Autowired
	private ArticleService articleService;

	@RequestMapping(value = "/save", method = RequestMethod.POST)
	public ModelAndView saveArticle(@ModelAttribute(" article") Article  article,
			BindingResult result) {
		 articleService.addArticle( article);
		return new ModelAndView("redirect:/articles.html");
	}

	@RequestMapping(method = RequestMethod.GET)
	public ModelAndView listArticles() {
		Map<String, Object> model = new HashMap<String, Object>();
		model.put("articles",  articleService.listArticles());

		return new ModelAndView("articlesList", model);
	}

	@RequestMapping(value = "/add", method = RequestMethod.GET)
	public ModelAndView addArticle(@ModelAttribute("article") Article article,
			BindingResult result) {
		return new ModelAndView("addArticle");
	}

} 

    

    当请求为/article.do的时候就这个controller就起作用了，@RequestMapping(method = RequestMethod.GET)会调用这个方法，返回的视图是articleList.jsp

   当你的请求为article/add.do的时候，就进入@RequestMapping(value = "/add", method = RequestMethod.GET)的这个方法，然后返回的视图是addArticle.jsp的这个视图。

   当请求为...(略)

对控制器controller的理解初步差不多了...