Caused by: java.lang.ClassNotFoundException: springfox.documentation.common.ClassPresentInClassPathC

因为swagger版本与knife4j不兼容

            com.github.xiaoymin
            knife4j-spring-boot-starter
            3.0.3
        

3.0.3版本太高可以降成2.0.4或2.0.9都行

            com.github.xiaoymin
            knife4j-spring-boot-starter
            2.0.4