Linux运行jar https://blog.youkuaiyun.com/dummyo/article/details/102622541
Linux查看运行的java程序 https://blog.youkuaiyun.com/dummyo/article/details/102622651
Linux查看某个端口号的运行程序 https://blog.youkuaiyun.com/dummyo/article/details/102622752
Linux杀掉某个进程 https://blog.youkuaiyun.com/dummyo/article/details/102622847
lsof -i:9999
9999是端口号
9999端口被一个java程序监听使用(Listen),然后它的进程号是6149.