1. Official website documents
json Chinese official website: http://www.json.org/json-zh.html
json official website: http://www.json.org/
json reference manual: (translation) JSON-RPC 2.0 specification (Chinese version)
Jackson official website Address: https://github.com/FasterXML/jackson
Jackson document address: https://github.com/FasterXML/jackson-docs
2. Jackson Tutorial
https://github.com/FasterXML/jackson-databind/
https://www.baeldung.com/jackson
https://mkyong.com/tutorials/java-json-tutorials/
https://jenkov.com/tutorials/java-json/index.html
https://www.logicbig.com/tutorials/misc/jackson.html
3. Jackson quick start:
https://www.cnblogs.com/mjoe/p/14930842.html
https://www.cnblogs.com/mockitobuilder/p/3754548.html