@ComponentScan
Learn how does the Spring search for beans found in different packages.
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Spring does a component scan to search for the beans that it manages. In a Spring application, the @ComponentScan annotation without any argument tells Spring to scan the current package as well as any sub-packages that might exist. Spring detects all classes marked with the @Component, @Repository, @Service, and @Controller annotations during component scan.
@SpringBootApplication
In a Spring application, @ComponentScan is used along with the @Configuration annotation. In a Spring Boot application, component scan happens implicitly. The @SpringBootApplication annotation is a combination of three annotations:
@Configuration@EnableAutoConfiguration...
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