程序启动报错org.springframework.context.ApplicationContextException: Unable to start web server

本文介绍: org.springframework.context.Ap pli cat ionCon textExc ept i on: Un a ble t o start web server; nested exception is org.spring framework.context.Ap pli cationCon textExc eption: Unable t o start Ser v letWe bSe r verAp pli ca tionCon text d ue to missing Ser v letWebSer verFactor y bean

一、场景

1、该项目在Lin u x和本机电脑上启动都正常

2、在另一台电脑上启动就报错

3、代码都是同一份，没有差别

二、报错 信息

org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.context.ApplicationContextException: Unable to start ServletWebServerApplicationContext due to missing ServletWebServerFactory bean.
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:157)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543)
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142)
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775)
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:316)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248)
	at com.xxx.RobotManagerSvr.main(RobotManagerSvr.java:32)
Caused by: org.springframework.context.ApplicationContextException: Unable to start ServletWebServerApplicationContext due to missing ServletWebServerFactory bean.
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.getWebServerFactory(ServletWebServerApplicationContext.java:206)
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:180)
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:154)
	... 8 common frames omitted

三、原因

导入spring-boot-starter–tomcat 依赖时定义的scope导致

原依赖导入配置

<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-tomcat</artifactId>
    <!--是provided导致-->
	<scope>provided</scope>
</dependency>

四、解决

调整后依赖导入配置

<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-tomcat</artifactId>
    <!--测试时先注释该配置-->
	<!--<scope>provided</scope>-->
</dependency>