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解決程序啟動報錯org.springframework.context.ApplicationContextException: Unable to start web server問題

更新時間：2024年11月16日 10:50:31 作者：天黑請?閉眼

文章描述了一個Spring Boot項目在不同環(huán)境下啟動時出現(xiàn)差異的問題,通過分析報錯信息,發(fā)現(xiàn)是由于導(dǎo)入`spring-boot-starter-tomcat`依賴時定義的scope導(dǎo)致的配置問題,調(diào)整依賴導(dǎo)入配置后,解決了啟動錯誤

一、場景

1、該項目在Linux和本機(jī)電腦上啟動都正常

2、在另一臺電腦上啟動就報錯

3、代碼都是同一份，沒有差別

二、報錯信息

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依賴時定義的scope導(dǎo)致

原依賴導(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)整后依賴導(dǎo)入配置

<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-tomcat</artifactId>
    <!--測試時先注釋該配置-->
	<!--<scope>provided</scope>-->
</dependency>

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