放到redis后台代码

后端代码：

@Resourceprivate JedisPool jedisPool;@Overridepublic List<Person> queryAll() {// TODO Auto-generated method stubJedis jedis = jedisPool.getResource();String str = jedis.get("persons");if(str==null){List<Person> persons = personDao.queryAll();String jsonString = JSON.toJSONString(persons);jedis.set("persons", jsonString);return persons;}else{List<Person> persons = (List<Person>) JSON.parse(str);return persons;}}