1
java配置和注解配置相结合，不需要任何的xml配置即可
2
spring tool suite
3
src/main/resources/banner.txt
http://patorjk.com/software/taag
4
application.properties
config/author.properties===> @ConfigurationProperties(prefix = "author", locations = { "classpath:config/author.properties"})
@Component
public class AuthorSettings{}
5
mvn spring-boot:run
6
profile
application.properties
application-dev.properties
application-prod.properties
spring.profiles.active=prod
7
debug
java -jar xx.jar --debug
application.properties, debug=true
8
自动配置
spring.factories