Servlet和JSP的数值传递

1、Servlet如何放数据并传递？

request.setAttribute("key",object);

2、JSP如何接收数据

Object obj=request.getAttribute("key");

eg:servlet

1 //获取票据id
2 Long id=Long.parseLong(requet.getParameter("id"));
3 //调用dao的方法
4 TicketDao ticketDao=new TicketDao();
5 Ticket ticket =ticketDao.findById(id);
6 
7 request.setAttribute("ticket",ticket);
8 request.getRequestDispcher("/WEB-INF/template/ticket/view.jsp").forwars(request,response);

eg:jsp

1 <%
2     Ticket ticket=(Ticket)request.getAttribute("ticket");
3 %>

 

posted @ 2020-04-07 22:47  codeing123  阅读(253)  评论(0)  编辑  收藏  举报