先搞环境：
sudo docker pull vulfocus/spring-core-rce-2022-03-29
docker run -d -p 8082:8080 --name corerce -it vulfocus/spring-core-rce-2022-03-29

EXP已分享到我的github
https://github.com/ChinaRan0/SpringCoreRCE-EXP-getshell

然后跑起来本机8082端口

运行exp，得到shell