# Web server failed to start. Port 9793 was already in use

Web server failed to start. Port 9793 was already in use.

文章目录

  • Web server failed to start. Port 9793 was already in use.
    • 报错描述
    • 报错原因
    • 解决方法
      • Spring Boot 修改默认端口号
      • 关闭占用某一端口号的进程
        • 关闭该进程

报错描述

# Web server failed to start. Port 9793 was already in use_第1张图片

  • Springboot项目启动控制台报错
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2023-10-12 09:55:44.462 ERROR 25112 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : 

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

Description:

Web server failed to start. Port 9793 was already in use.

Action:

Identify and stop the process that's listening on port 9793 or configure this application to listen on another port.

Disconnected from the target VM, address: '127.0.0.1:3187', transport: 'socket'

Process finished with exit code 1

报错原因

  • 端口被占用

解决方法

Spring Boot 修改默认端口号

  • 修改yml或者properties配置文件,加上参数:
# properties 方式
server.port=8014

# yaml 方式
server:
  port: 8881
  • 注意启动成功后面,后端的端口号变为 8881

关闭占用某一端口号的进程

  • 使用cmd命令查看端口号占用情况,例如查看端口 8881,可以看出进程号为18644
netstat -ano | findstr 端口号

# Web server failed to start. Port 9793 was already in use_第2张图片

关闭该进程
  • 方法一:使用任务管理器关闭:菜单栏 -> 右键 - > 任务管理器 -> 详细信息,根据PID排序找到PID18644的进程,选择后点击结束任务

# Web server failed to start. Port 9793 was already in use_第3张图片

  • 方法二: 使用命令关闭
taskkill -PID 18644 -F

# Web server failed to start. Port 9793 was already in use_第4张图片

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