Member-only story
Top 10 Spring Boot Mistakes and How to Avoid Them
In the previous article, we discussed the Top 10 Spring Boot REST API Mistakes and How to Avoid Them.
In this article, we’ll explore the top 10 Spring Boot mistakes developers make and provide actionable steps to avoid them. By the end of this article, you’ll have a clear understanding of how to follow best practices to create efficient, secure, and future-proof applications.
I am a bestseller Udemy Instructor. Check out my top 10 Udemy courses with discounts: My Udemy Courses — Ramesh Fadatare.
1. Ignoring Profiles for Environment-Specific Configurations
Many developers hardcode configurations directly into their application, which can lead to challenges when deploying the app to different environments, such as development, staging, and production. This approach is error-prone and makes managing multiple environments difficult.
How to Avoid:
Use Spring Profiles to create environment-specific configuration files. Spring Boot allows you to use application-{profile}.properties or application-{profile}.yaml for different environments.
Example:
application-dev.properties:
spring.datasource.url=jdbc:h2:mem:dev-db
spring.datasource.username=dev
spring.datasource.password=devpassapplication-prod.properties:
spring.datasource.url=jdbc:mysql://prod-db:3306/mydb
spring.datasource.username=prod
spring.datasource.password=securepassActivate a profile by setting the spring.profiles.active property:
spring.profiles.active=prodBy leveraging profiles, you can seamlessly switch between configurations and avoid hardcoding values.
2. Writing Business Logic in Controllers
Placing business logic in controllers creates tightly coupled and untestable code. It violates the Single Responsibility Principle and makes your application harder to maintain.
