JAVA 分页查询实现判断是否有下一页,并决定是否允许翻页

		String id_String=request.getParameter("id");
		//System.out.println(id);
		int id = Integer.parseInt(id_String);
		
		ArticleDao_news dao = new ArticleDao_news();
		if(id==0) {
			id=1;
		}
		
		LastID listid= dao.findLastID();
		
		//总记录行数/每页数量向上取整 +1  得到页数 
		//如果目标页数大于页数则禁止翻页
		if(id>Math.ceil(listid.getId()/2)+1) {
			id =id-1;
		}

	    List<Article> list =dao.Pagingquery(id);
	    request.setAttribute("articles", list);
	    request.setAttribute("page", id);
	    request.getRequestDispatcher("news-column-cn.jsp").forward(request, response);