1. Java native serialization

Java native serialization method is to convert through Java native stream (conversion between InputStream and OutputStream).

2. Json serialization

Json serialization generally uses the jackson package and performs some operations through the ObjectMapper class, such as converting objects into byte arrays or converting json strings into objects. Most companies now use json as the data format returned by the server.

3. FastJson serialization

fastjson is a Json parser and generator implemented in Java language with good performance developed by Alibaba. Features: fast speed, tests show that fastjson has extremely fast performance, surpassing any other java json parser. Powerful, fully supports java beans, collections, Maps, dates, Enums, and supports paradigms and introspection.

4. ProtoBuff serialization

ProtocolBuffer is a lightweight and efficient structured data storage format that can be used for structured data serialization. Suitable for data storage or RPC data exchange format. It can be used in communication protocols, data storage and other fields as a language-independent, platform-independent, and extensible serialized structured data format.