Error:(12, 8) java: 无法访问org.springframework.web.WebApplicationInitializer
找不到org.springframework.web.WebApplicationInitializer的类文件springboot启动报错，原因是缺少jar包
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>最新版本</version>
</dependency>