一、場(chǎng)景

1、該項(xiàng)目在Linux和本機(jī)電腦上啟動(dòng)都正常

2、在另一臺(tái)電腦上啟動(dòng)就報(bào)錯(cuò)

3、代碼都是同一份，沒(méi)有差別

二、報(bào)錯(cuò)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

導(dǎo)入spring-boot-starter-tomcat依賴(lài)時(shí)定義的scope導(dǎo)致

原依賴(lài)導(dǎo)入配置

<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-tomcat</artifactId>
    <!--是provided導(dǎo)致-->
	<scope>provided</scope>
</dependency>

四、解決

調(diào)整后依賴(lài)導(dǎo)入配置

<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-tomcat</artifactId>
    <!--測(cè)試時(shí)先注釋該配置-->
	<!--<scope>provided</scope>-->
</dependency>

注：

• 本機(jī)就算是provided也能正常啟動(dòng)
• 另一臺(tái)電腦上就不行
• 應(yīng)該是運(yùn)行環(huán)境上的差異

總結(jié)

以上為個(gè)人經(jīng)驗(yàn)，希望能給大家一個(gè)參考，也希望大家多多支持腳本之家。