Spring boot排除内置Tomcat后，无法启动

Spring boot中排除内置tomcat后无法使用Application启动类，启动项目，包如下错误：

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:210)

at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:180)

at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:160)

... 8 common frames omitted

慕粉4194439 2022-08-18

源自：集群架构：主从复制高可用Redis集群 1-1 分布式架构概述

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1回答

风间影月 2022-08-18 10:05:14

排除这一个不够的，你看下打包章节里面有好几个。另外项目本身就无法下载后直接启动的，依赖的东西太多了。建议跟着课程做一下哈~~~

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提问者慕粉4194439 #1

根据视频做的一下配置，打包成war文件后，能够部署到服务器上，并且能够运行起来；但是此时，在Idea中，使用Application类启动项目时，就会报上面的错

配置的代码：
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="..."

<packaging>war</packaging>

<dependencies>

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>2.5.5</version>

<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</exclusion>
</exclusions>
</dependency>


<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<scope>provided</scope>
</dependency>
</dependencies>
</project>

// 打包war [4] 增加war的启动类
public class WarStarterApplication extends SpringBootServletInitializer {

@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
// 指向Application这个springboot启动类
return builder.sources(Application.class);
}
}

2022-09-04 22:23:07