4.0.0 org.springframework.boot spring-boot-starter-parent 2.1.6.RELEASE org.vulhub fastjsondemo 1.0.0-SNAPSHOT fastjsondemo Fastjson 1.2.45 demo 1.8 org.springframework.boot spring-boot-starter-web com.alibaba fastjson 1.2.45 org.springframework.boot spring-boot-maven-plugin