严重: Servlet.service() for servlet [jsp] in context with path [/CookieDemo1] threw exception [An exception occurred processing JSP page /dologin.jsp at line 41

38:             usernameCookie.setMaxAge(864000);
39:             passwordCookie.setMaxAge(864000);
40:             
41:             response.addCookie(usernameCookie);
42:             response.addCookie(passwordCookie);
43:         }  else
44:         {


Stacktrace:] with root cause