How can automatic configuration be implemented in SpringBoot?

The main way Spring Boot achieves automatic configuration is through the use of the @EnableAutoConfiguration and @SpringBootApplication annotations.

1. This is a Spring Boot application.
2. Setting@Configuration
3. Automatically configure dependencies.
4. Annotation used in Spring Framework to automatically scan and detect Spring components like classes annotated with @Controller, @Service, @Repository, etc.

@SpringBootApplication
public class MyApplication {
    public static void main(String[] args) {
        SpringApplication.run(MyApplication.class, args);
    }
}

1. Spring Boot automatically configures the application settings based on the dependencies in the classpath.
2. If custom configuration is needed, you can create a configuration class, annotate it with @Configuration, and then define the required beans using the @Bean annotation within the configuration class.

@Configuration
public class MyConfig {
    @Bean
    public MyService myService() {
        return new MyService();
    }
}

1. Annotation for Spring Boot applications
2. omit

@SpringBootApplication(exclude = {DataSourceAutoConfiguration.class})
public class MyApplication {
    public static void main(String[] args) {
        SpringApplication.run(MyApplication.class, args);
    }
}

By following the above steps, the functionality of automatic assembly can be achieved. Spring Boot will automatically configure the application environment based on the configuration and dependencies under the classpath, and can further customize the configuration through custom configuration classes.