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【异常】运行SpringBoot程序提示异常,Web server failed to start. Port XXX was already in use.

2023-09-14 09:04:55 时间

一、报错内容

***************************
APPLICATION FAILED TO START
***************************

Description:

Web server failed to start. Port 9091 was already in use.

Action:

Identify and stop the process that's listening on port 9091 or configure this application to listen on another port.

二、报错说明

典型的端口号冲突导致的问题

三、报错解决

以下步骤按先后顺序都可以尝试下,看看能否解决

(1)杀掉你不需要的JVM进程
(2)换个端口号试试
(3)重新启动IDEA
(4)重启电脑