code: public <T> Map<String, T> get(String... fields) {
  		try {
  			List<byte[]> datas = null;
  			Map<String, T> result = new HashMap<>();
  			
  			byte[][] encodeFileds = SafeEncoder.encodeMany(fields);
  			if (isCluster(groupName)) {
  				datas = getBinaryJedisClusterCommands(groupName).hmget(keyBytes, encodeFileds);
  			} else {
  				datas = getBinaryJedisCommands(groupName).hmget(keyBytes, encodeFileds);
  			}
  			for (int i = 0; i < fields.length; i++) {
  				result.put(fields[i], (T)valueDerialize(datas.get(i)));
  			}
  			return result;
  		} finally {
  			getJedisProvider(groupName).release();
  		}
  
  	}
docs: 获取多个key的值
  
  @param fields
  @return