我有简单的代码，我只是在一个servlet中设置一个cookie，然后尝试在另一个servlet中输出它，但不知怎的，我无法在另一个页面中检索cookie。
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
int life = 3600;
Cookie para = new Cookie("para1","someValue");
para.setMaxAge(life);
response.addCookie(para);
response.sendRedirect("/HelloWorld2/EndServlet");
}
//EndServlet code:
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
PrintWriter out = response.getWriter();
Cookie[] cookie = request.getCookies();
if (cookie!=null)
for (Cookie c : cookie)
if(c.getName().equalsIgnoreCase("para1"))
out.println("<html><head/><body><h1>"+c.getValue()+"</h1></body></html>");
}