One Pager Cheat Sheet

• Spring Boot is a Java-based framework that provides an opinionated default configuration and pre-packaged solutions to quickly create "production-ready" apps and prototype new concepts.
• Spring Boot provides a default configuration for creating customized and adapted applications of various types, including non-web applications, with an embedded web server available for web applications if required.
• Spring Boot has many important features, such as The Spring actuator, The Spring initializer, The Spring CLI, and auto-configuration, which can be seen in the diagram above.
• Spring Boot is preferred for its auto-configuration, embedded servers, health checks, and security features, as well as its simplicity, ease of use, flexibility, and large active community that helps with problems and enables it to be used in a variety of applications.
• Spring provides comprehensive tools for developing applications, but requires a lot of manual configuration, whereas Spring Boot is a framework built on top of Spring that simplifies and streamlines the process, eliminating the need for manual setup.
• Spring is an ideal choice for large-scale projects due to its comprehensive tool set and extensive configuration options, allowing for greater flexibility and control of the development environment.
• The Spring Boot starter dependency provides developers with a quick and easy way to get started on a new project, by adding pre-configured dependencies classified according to the type of project.
• Spring Boot consists of a Presentation Layer, Business Layer, Persistence Layer and Database Layer, responsible for handling user interactions, implementing business logic and carrying out CRUD operations.
• HTTP requests are mapped to the controller, where service logic is called, data is mapped to JPA and, if no errors occur, a JSP page is returned to the user.
• The Spring Boot Actuator provides a variety of endpoints that allow you to monitor and manage your Spring Boot application, allowing you to view information about its functionality, configuration, and state, as well as utilize additional features for auditing, caching, and security.
• Yes, the Spring Boot Actuator offers a variety of HTTP endpoints, health checks, metrics and JMX, allowing for extensive observation and control of a Spring Boot application.
• You can override the default port number (server.port) in the application.properties file to change the port for your Spring Boot application.