public boolean exists ( String key ) throws Exception { boolean isExist = false ; Jedis jedis = null ; try { jedis = this . jedisPool . getResource ( ) ; isExist = jedis . exists ( SafeEncoder . encode ( key ) ) ; } catch ( Exception e ) { logger . error ( e . getMessage ( ) , e ) ; this . jedisPool . returnBrokenResource ( jedis ) ; throw e ; } finally { if ( jedis != null ) { this . jedisPool . returnResource ( jedis ) ; } } return isExist ; }
Test if the specified key exists .