问题

SpringBoot项目启动后自动关闭

方案一

在pom中添加spring-boot-starter-web依赖

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

方案二

在pom中添加spring-boot-starter-tomcat依赖

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