/**
* 通过key获取value值的长度
*
* @param key
* @return 失败返回null
*/
public Long serlen(String key) {
ShardedJedis jedis = null;
Long res = null;
try {
jedis = pool.getResource();
res = jedis.strlen(key);
} catch (Exception e) {
pool.returnBrokenResource(jedis);
e.printStackTrace();
} finally {
returnResource(pool, jedis);
}
return res;
}
