如下图，idea启动springboot失败，8080端口被占用
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2018-05-23 22:18:43.688 ERROR 3793 --- [ restartedMain] o.s.b.d.LoggingFailureAnalysisReporter :
***************************
APPLICATION FAILED TO START
***************************
Description:
Web server failed to start. Port 8020 was already in use.
Action:
Identify and stop the process that's listening on port 8020 or configure this application to listen on another port.
mac下怎么使用命令行关闭端口呢？
打开mac终端，或者idea的终端，输入:
lsof -i:端口号（我的是8020，那么输入如下命令）
lsof -i:8020
输入 lsof -i:8020 后回车
bogon:it399_springboot chenshouyin$ lsof -i:8020
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
java 1472 chenshouyin 120u IPv6 0x71c9463ce2ac6f49 0t0 TCP *:intu-ec-svcdisc (LISTEN)
bogon:it399_springboot chenshouyin$
可以看到我的端口对应的进程id是1472，那么kill这个进程即可
mac下关闭进程
kill 进程id，上面我的进程id是1472，那么直接输入如下命令即可
kill 1472
关闭占用端口的进程之后，再启动springboot不再报错了
转载请注明:本文转载自在线助手|在线工具博客，原文链接:http://www.it399.com/blog/web/201805251638
