linux下springboot项目无法启动(80端口被占用却查不到)_port 80 is already in use. 但是找不到占用的端口 linux

 通过下面的方式启动项目时发现报错了

命令: java -jar project.jar
 
 
 
***************************
APPLICATION FAILED TO START
***************************
 
Description:
 
Web server failed to start. Port 80 was already in use.
 
Action:
 
Identify and stop the process that's listening on port 80 
or configure this application to listen on another port.

 可通过 netstat 命令却查不到任何其它进程占用的提示信息. 猜测是项目内部的问题.

触发条件:

springboot 版本 2.7.8

配置端口和ssl如下:

server:
  port: 80
  tomcat:
    max-http-header-size: 9000
  ssl:
    enabled: true
    key-store: /project/ssl/certificate.pfx
    key-store-type: PKCS12
    key-store-password: 123456

解读:

项目启动日志中有这样一句日志:

Tomcat initialized with port(s): 80 (https) 80 (http)

说明本该配置ssl为443的端口却再次配置到了80

纠正:

server:
  port: 443
  tomcat:
    max-http-header-size: 9000
  ssl:
    enabled: true
    key-store: /project/ssl/certificate.pfx
    key-store-type: PKCS12
    key-store-password: 123456

这时候应该就好了