序列化工具

java serialize
1 MessagePack is faster and smalle than JSON with large message (>100kb)
no need to consider the serializer and deserializer on small msg (<10byte)
deserializing is more complex than serializing for json

测试：https://medium.com/@hugovs/the-need-for-speed-experimenting-with-message-serialization-93d7562b16e4
java示例 https://www.cwiki.us/display/Serialization/MessagePack+Jackson+Dataformat
协议详情 https://gitee.com/zsx950110/msgpack/blob/master/spec.md#extension-types
2.JSON parse bytes with Base64 algorithm