code: public boolean set(String field, Object value) {
  		boolean result = false;
  		if(value == null)return false;
  		//返回值（1:新字段被设置,0:已经存在值被更新）
  		try {
  			if (isCluster(groupName)) {
  				result = getBinaryJedisClusterCommands(groupName)
  						.hset(keyBytes, SafeEncoder.encode(field), valueSerialize(value)) >= 0;
  			} else {
  				result = getBinaryJedisCommands(groupName).hset(keyBytes, SafeEncoder.encode(field), valueSerialize(value)) >= 0;
  			}		
  			//设置超时时间
  			if(result)setExpireIfNot(expireTime);
  			return result;
  		} finally {
  			getJedisProvider(groupName).release();
  		}
  	}
docs: 设置ç
  
  @param field
  @param value
  @return