将JWT生成的token存入redis

 @Autowired
    private StringRedisTemplate redisTemplate;
@Override
    public String getTokenEntity(User user) {
        String token = null;
        try {
            token = JwtUtil.createToken(user.getId());
            if (token!=null){
                redisTemplate.opsForValue().set("token",token);
                redisTemplate.expire("token",3000, TimeUnit.DAYS);
            }
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
        return token;
    }