Spring Boot provides a flexible way to configure applications using application.properties or application.yml files. These configuration files help manage database settings, logging, server properties, and more.

Where to Place application.properties?

• Inside the src/main/resources/ directory.
• Spring Boot automatically loads this file at runtime

Common Configurations in application.properties

1. Server Configuration

🔹 server.port → Changes the default port (8080 → 8081).

🔹 server.servlet.context-path → Sets the base URL (localhost:8081/myapp).

2. Database Configuration (MySQL Example)

🔹 spring.datasource.url → Database connection URL.

🔹 spring.jpa.database-platform → Specifies the Hibernate dialect.

3. Hibernate & JPA Configuration

🔹 spring.jpa.show-sql → Prints SQL queries in the console.

🔹 spring.jpa.hibernate.ddl-auto → Schema management (update, create, none).

🔹 spring.jpa.properties.hibernate.format_sql → Formats SQL queries.

4. Logging Configuration

🔹 logging.level.root → Set logging level (TRACE, DEBUG, INFO, WARN, ERROR).

🔹 logging.file.name → Save logs to logs/app.log.

Using application.yml (YAML Format)

Equivalent YAML Configuration for the Above Properties: