jsp 跳转及数据传输有关问题

jsp 跳转及数据传输问题
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tian.jsp????
<%request.setAttribute("river","redwater");
????request.setAttribute("country","daguaiwan");
%>
<jsp:forward page="fengshan.jsp" />
??donglan.jsp????
<%request.setAttribute("river","redwater");
????request.setAttribute("country","daguaiwan");
%>
<a href="fengshan.jsp">fengshan</a>
??bama.jsp????
<%request.setAttribute("river","redwater");
????request.setAttribute("country","daguaiwan");
????response.sendRedirect("fengshan.jsp");
%>
??fengshan.jsp
<%=request.getAttribute("river")%><br/>
<%=request.getAttribute("country")%>
servlettiane.jsp????
<%request.setAttribute("river","redwater");
????request.setAttribute("country","daguaiwan");
%>
<jsp:forward page="/tiane" />
?servletbama.jsp????
<%request.setAttribute("river","redwater");
????request.setAttribute("country","daguaiwan");
????response.sendRedirect("/ForwardRedirect/tiane");
%>
?Tiane.java
publicclass Tiane extends HttpServlet {

??publicvoid doGet(HttpServletRequest request, HttpServletResponse response)
??????throws ServletException, IOException {
//????response.sendRedirect("/ForwardRedirect/fengshan.jsp");
????this.getServletConfig().getServletContext()
????????????.getRequestDispatcher("/fengshan.jsp").forward(request, response);
??}

??publicvoid doPost(HttpServletRequest request, HttpServletResponse response)
??????throws ServletException, IOException {
????doGet(request, response);
??}????
}
?再在web.xml中配置servlet：
??<servlet>
??<servlet-name>tiane</servlet-name>
??<servlet-class>com.dvnchina.test.Tiane</servlet-class>
??</servlet>
??<servlet-mapping>
??<servlet-name>tiane</servlet-name>
??<url-pattern>/tiane</url-pattern>
</servlet-mapping>

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