how to configure 'dispatcherServlet' load on startup by spring boot?

Question

I use spring-boot-starter-parent as parent and add spring-boot-starter-web as denpendency.

By add the @SpringBootApplication annot

Answer 1

BTW, the BeanNameUrlHandlerMapping is harmless here.

It is used to map a Spring Bean to a URL - for example it might be used to support Spring HttpInvoker remoting.

The rejection lines in the log output simply mean that it doesn't recognize any of the Spring beans as beans that require a URL mapping. Annoying messages but harmless. You could always set the logging level for this bean or its package to INFO or above to remove the message. In Spring Boot's application.properties put

logging.level.org.springframework.web.servlet.handler=INFO