alibaba / alibaba/fastjson2

[QUESTION] fastjson由1.2.83升级至2.0.52,有没有兼容升级的Featrue配置

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Description

### 请描述您的问题
*询问有关本项目的使用和其他方面的相关问题。*
我们项目大量使用了fastjson的序列化和反序列化,最近fastjson由1.2.83升级至2.0.52,遇到了大量不兼容问题,有没有兼容升级的配置.
主要是这个两个API,给这两个API设置什么feature可以和fastjoson1 行为一致?
JSON.toJSONString()
JSON.parseObject()

Contributor guide

Open the contributing guide

Research direction

Start by reviewing the compatibility differences between JSON.toJSONString() and JSON.parseObject() in fastjson 1.2.83 and 2.0.52. Determine whether feature settings can reproduce the earlier behavior, and document the applicable configuration or the cases that remain incompatible.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
backend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
15/100

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