Now, let's start the application with the mvn spring-boot:run command. Once the application starts, you can see the following information in the output:
Mapping filter: 'springSecurityFilterChain' to: [/*]
Because it is mapped to a wildcard (/*), the Spring Security filter chain will handle all of the requests the application receives.
Another log that you will see in the output is the following:
o.s.s.web.DefaultSecurityFilterChain : Creating filter chain: org.springframework.security.web.util.matcher.AnyRequestMatcher@1, [org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter@3c2b5b0a, org.springframework.security.web.context.SecurityContextPersistenceFilter@240d2b4d, org.springframework.security.web.header.HeaderWriterFilter@711e7156, ...