code: public boolean delete(String key) {
          Jedis jedis = null;
          try {
              jedis = this.jedisPool.getResource();
              jedis.del(SafeEncoder.encode(key));
              logger.info("delete key:" + key);
  
              return true;
          } catch (Exception e) {
              logger.error(e.getMessage(), e);
              this.jedisPool.returnBrokenResource(jedis);
          } finally {
              if (jedis != null) {
                  this.jedisPool.returnResource(jedis);
              }
          }
          return false;
      }
docs: Remove the specified keys.
  
  @param key
  
  @return false if redis did not execute the option