@RequestMapping("/index")
	public String getAllArticle(Integer page ,String tag,HttpServletRequest request){
	    if(null==tag||"".equals(tag)){
	    	request.getSession().setAttribute("tag", "");
	    }
		if(page == null){
			page =0;
		}else{
			ArticleController.page = page;
		}
		List<Article> list =articleManager.getAllArticleByPage(0, ArticleController.page,(String)request.getSession().getAttribute("tag"));
		List<String> taglist = articleManager.getAllTag();
		request.setAttribute("articleList", list);
		request.setAttribute("tagList", taglist);
		Integer totlepages = articleManager.getTotlePages((String)request.getSession().getAttribute("tag"));
		request.setAttribute("page",ArticleController.page);
		request.setAttribute("isLast", (page+1)==totlepages);
		return "/webpages/index";
	}