302重定向问题

[qq_45822778]

我退出时访问exit能删除数据但是显示302，用户数据还在，要刷新一下页面数据就没了，怎么解决这种问题？？？ public void exit(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
//销毁数据
// request.getSession().invalidate();
//获取所有Cookie
Cookie[] cookies = request.getCookies();
//清除所有Cookie for (Cookie c:cookies){
c.setValue(null);
c.setMaxAge(0);
System.out.println(c.getValue());
}

//重定向转到登录页面
response.sendRedirect(request.getContextPath() + "/login.html");

} public void findOne(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

//获取所有Cookie
Cookie[] cookies = request.getCookies();
//排除自带的Cookie
for (Cookie c:cookies){
if (c.getName().equalsIgnoreCase("JSESSIONID")){
c.setMaxAge(0);
c.setValue(null);
}
} if (cookies[0].getName() != null && cookies[0].getValue() != null) {
String name = cookies[0].getValue();
User user = new User();
user.setName(name);

//返回数据给客户端
writeValue(user, response);
} else {

writeValue(null, response);
}