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

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目录

一、场景二、报错信息三、原因四、解决

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一、场景

1、该项目在Linux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

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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

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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>

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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>

注：本机就算是provided也能正常启动，另一台电脑上就不行，应该是运行环境上的差异

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