Download `demo-arthas-spring-boot.jar`, and start with `java -jar` command: `wget https://github.com/hengyunabc/spring-boot-inside/raw/master/demo-arthas-spring-boot/demo-arthas-spring-boot.jar java -jar demo-arthas-spring-boot.jar`{{execute T1}} `demo-arthas-spring-boot` is a simple Spring Boot demo, the source code here: [View](https://github.com/hengyunabc/spring-boot-inside/tree/master/demo-arthas-spring-boot) After booting, access port 80: https://[[HOST_SUBDOMAIN]]-80-[[KATACODA_HOST]].environments.katacoda.com ![Demo Web](/arthas/scenarios/common-resources/assets/demo-web.png)