import com.alibaba.fastjson.JSON; import com.alibaba.fastjson.JSONObject; import com.alibaba.fastjson.parser.Feature; import com.alibaba.fastjson.serializer.SerializerFeature; public class Fastjson1CompatibleDemo { public static void main(String[] args) { User user = new User("John", 25); String json = JSON.toJSONString(user, SerializerFeature.WriteClassName); User newUser = JSON.parseObject(json, User.class, Feature.SupportAutoType); } } class User { private String name; private int age; public User(String name, int age) { this.name = name; this.age = age; } }


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