    @Test
    public void testRemove() {

        Person p = new Person(5, "name1", 12, "address1");
        personService.save(p);
        log.info("缓存中一个缓存 id = 5 的 Person 对象");

        personService.remove(5L);
        log.info("删除一个缓存 id = 5 的 Person 对象");

        Person person = personService.findOne(p);
        log.info("从数据库中抓取一个 id = 2 的对象，并存入缓存");
        Assert.assertEquals(person.getId(), 2);
    }