Core lib based on 'javacv 1.4.x',web service based on 'spring-boot 2.x'.### buildProject is based on jdk1.8,build on maven.### core libThe core library of video recording and snapshots is two separate modules.### web serviceWeb services used springboot services,each web service is an independent micro service.The default port of video recording service is '8082',video capture service is '8081'.