java - How does SpringBoot decrease boiler plate code?

Question

I understand how SpringBoot saves time in other respects such as having an embedded server and starter dependencies, but how does SpringBoot reduce boiler plate code needed for an application?

Thanks

question from:https://stackoverflow.com/questions/65941689/how-does-springboot-decrease-boiler-plate-code

Answer 1

Spring Boot brings a ton of autoconfiguration classes, which create beans with default configurations, that would have been created by the developer themselves previously. An example would be beans for database access. You would have created a datasource, maybe a JdbcTemplate, connection pool etc. Now those beans are created with autoconfiguration (example: https://github.com/spring-projects/spring-boot/blob/master/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/jdbc/DataSourceAutoConfiguration.java), and configuration can be customized through application.properties files.