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application.properties Guide

Configuring database URLs, ports, and custom app settings.

Anuj Kumar Singh Written by Anuj Kumar Singh (Lead Engineer, 13+ yrs exp) 5 min read Verified Spring Boot 3+ Guide
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Configuring application.properties

Spring Boot reads settings from src/main/resources/application.properties.

application.properties
server.port=8080
spring.datasource.url=jdbc:mysql://localhost:3306/anujsingh_db
spring.datasource.username=root
spring.datasource.password=secret_password
spring.jpa.hibernate.ddl-auto=update