SpringBoot集成swagger后出现: Failed to start bean ‘documentationPluginsBootstrapper‘的编译错误：
org.springframework.context.ApplicationContextException:
Failed to start bean ‘documentationPluginsBootstrapper’;
nested exception is java.lang.NullPointerException

org.springframework.context.ApplicationContextException:
Failed to start bean 'documentationPluginsBootstrapper'; 
nested exception is java.lang.NullPointerException

• 解决办法：在启动类加一个注解：@EnableWebMvc
• 参考：https://www.cnblogs.com/rainbow70626/p/15680184.html