常用指令:
https://blog.csdn.net/qq_25447799/article/details/122481813
SpringBoot读取外部配置文件的方法:
https://www.jb51.net/article/236858.htm
Spring Boot添加自定义yml文件配置:
https://blog.csdn.net/u013314786/article/details/87975279
nohup启动jar详解
https://www.jianshu.com/p/25753438958e
Linux后台运行jar报错：nohup: ignoring input and redirecting stderr to stdout解决方法：
解决方法：
执行：nohup java -jar kaoqin20210327.jar >nohup.out 2>&1 &
