Why My Company’s Code Keeps Failing: 6 Real‑World Backend Pitfalls and How to Fix Them

Common Backend Pitfalls

Reading two configuration files simultaneously, causing unclear precedence between internal and external settings.

Hard‑coded parameters scattered in code, making changes labor‑intensive (e.g., permission checks).

Mixed use of System.out.println and proper logging frameworks, leading to inconsistent log output.

Lack of code review before production deployment, resulting in mismatched code and database states.

Ad‑hoc changes to production databases without proper synchronization.

Maven dependency declared with an incorrect type (using pom instead of the intended artifact), causing missing JARs.

Solutions

For new or upgraded projects, keep all configuration in application.yml or application.properties within the Spring project; external files should only be used for production overrides via startup scripts.

Example command to specify an external configuration file:

nohup java -Dfile.encoding=UTF-8 -Dspring.config.location=server/src/main/config/application.properties -jar xxx.jar &

Standardize coding practices: follow a consistent logging strategy, avoid hard‑coding values, and ensure all production changes are reviewed and documented.

When encountering Maven type issues, declare the correct artifact type in the dependency section, e.g.: <type>jar</type> Maintain proper database migration processes to keep development, staging, and production schemas synchronized.