Paweł Chudzik • 4/11/2019

Spring's properties misconfiguration dangers

This technical article details a real-world support issue where a Spring application displayed invalid data due to a missing configuration key, causing a fallback to a default value. The author argues against using default property values in complex systems, explaining how they can lead to unexpected problems. The recommended solution is to use dedicated Spring profiles (like dev, uat, prod) for each environment, ensuring all configuration is explicit. The post includes practical advice on setting up profiles and suggests writing tests to guarantee configuration keys are present across all environments.

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#configuration #spring boot #properties