IDEA启动Springboot时,解决报错java.lang.NoClassDefFoundError: javax/servlet/Filter 如下所示,将spring-boot-starter-tomcat依赖中的<scope>provided</scope>注释掉 <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> <!--<scope>provided</scope>--></dependency>