Spring Boot

Understand how Spring Boot Embedded Servers allow web applications to run as standalone applications without requiring a separately installed and configured external web server. Spring Boot applications can package the server inside the application and start it automatically when the application runs. For a typical Spring Boot web application, the web starter brings the required

Understand how Spring Boot Auto Configuration automatically configures application components based on the dependencies available in the project and the configuration provided by the developer. Auto Configuration reduces the amount of configuration that developers need to write manually. For example, when database dependencies are available and database properties are configured, Spring Boot can automatically configure

Spring Boot Starters are convenient dependency descriptors that provide a predefined set of libraries required for a particular application capability. Instead of manually adding many individual dependencies and managing their compatible versions, developers can add a single starter dependency to the pom.xml file. spring-boot-starter-web provides dependencies required for developing web applications and REST APIs. spring-boot-starter-data-jpa

1. Creating a Spring Boot Project Spring Boot projects are typically generated using Spring Initializr, a web-based (or IDE-integrated) tool that lets you select your build tool, language, Spring Boot version, project metadata, and dependencies, then generates a ready-to-run project skeleton. This avoids manually setting up folder structures, pom.xml entries, and boilerplate classes by hand.

DatabaseMetaData is a JDBC interface used to obtain information about the database, JDBC driver, tables, columns, and supported database features. It is obtained from a Connection object using the getMetaData() method. Using DatabaseMetaData, a Java program can dynamically inspect database information without directly querying system tables. This is useful for database administration, debugging, database migration

Spring Boot is an extension of the Spring Framework that simplifies the process of building stand-alone, production-grade Spring applications. It removes the need for extensive XML configuration and boilerplate setup that traditional Spring applications required. Why Spring Boot is used: Auto-configuration – automatically configures Spring and third-party libraries based on the dependencies present in the