Fastjson Custom Deserialization Guide

In Fastjson, you can use the com.alibaba.fastjson.parser.deserializer.ObjectDeserializer interface to customize deserialization methods. This interface includes a method T deserialze(DefaultJSONParser parser, Type type, Object fieldName), where parser is the Fastjson parser, type is the target type to be deserialized, and fieldName is the current field being processed. By implementing this interface, you can customize the deserialization logic as needed.