本人在学习servlet的,发现在一个Aservlet中setAttribute后,再Bservlet中用getAttribute中拿不到,查了很多信息都说要使用request.getRequestDispatcher(),但是request.getRequestDispatcher()只有在Bservlet中使用有效,如何在Aservlet中使用求大神指导具体怎么用,怎么实现Aservlet的setAttribute在Bservlet中getAttribute?
Aservlet中的setAttribute
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
request.setAttribute("imessage","hi,fServlet,i'm hServlet");
}
Bservlet中的getAttribute
String imessage =request.getAttribute ("imessage").toString();
if(imessage!=null&&!"".equals(imessage)&&imessage.contains("hServlet")){
response.getWriter().print("hi,hServlet,i'm fServlet,i'm waitting for you!!!");
}else {
response.getWriter().print("nobodys!");
}
}