IDEA啟動Springboot時，解決報錯java.lang.NoClassDefFoundError: javax/servlet/Filter

如下所示，將spring-boot-starter-tomcat依賴中的<scope>provided</scope>注釋掉

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