springboot优雅启停

https://www.iteye.com/blog/shift-alt-ctrl-2439566

https://www.cnblogs.com/harrychinese/p/SpringBoot-graceful-shutdown.html

https://www.jb51.net/article/167915.htm

https://github.com/spring-projects/spring-boot/issues/4657

https://blog.csdn.net/m0_37793798/article/details/84206167