文章内容
1、在没有设置Redis的Value的时候，设置key的失效时间没有用
1 2 3 | String redisKey = "test:string";BoundValueOperations<String, String> redisOper = redisTemplate.boundValueOps(redisKey);redisOper.expire(10, TimeUnit.DAYS); |
2、对于Redis 字符串(String)，设置了失效日期之后再设置值，那么将会丢掉失效日期
01 02 03 04 05 06 07 08 09 10 11 | String redisKey = "test:string";BoundValueOperations<String, String> redisOper = redisTemplate.boundValueOps(redisKey);redisOper.expire(10, TimeUnit.DAYS);System.out.println(redisOper.getExpire());redisOper.set("----------");redisOper.expire(10, TimeUnit.DAYS);System.out.println(redisOper.get());System.out.println(redisOper.getExpire());redisOper.set("-----+-----");System.out.println(redisOper.get());System.out.println(redisOper.getExpire()); |
3、当Redis hash中的键值对清空的时候，这个Redis Key也被Redis删除了,也就没有失效日期了
01 02 03 04 05 06 07 08 09 10 11 12 13 14 | String redisKey = "test:hash";BoundHashOperations<String,String,String> redisOper = redisTemplate.boundHashOps(redisKey);System.out.println(redisOper.getExpire());redisOper.put("name","xiaoming");redisOper.put("sex","man");redisOper.expire(10, TimeUnit.DAYS);System.out.println(redisOper.size());System.out.println(redisOper.getExpire());redisOper.delete("name");System.out.println(redisOper.size());System.out.println(redisOper.getExpire());redisOper.delete("sex");System.out.println(redisOper.size());System.out.println(redisOper.getExpire()); |