菜鹏

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub String contentType = response.getContent

PrintWriter pw = response.getWriter(); pw.close(); System.out.println("start"); Cookie c = new Cookie("myname", "yangdapeng"); c.setMaxAge(3600); response.addCookie(c); System.

原因是response已经提交过，比如代码里含有