A naukri.com initiative
Medium
1w
342
Image Credit: Medium
Building Composite Configuration Sources in Spring Boot
- Spring Boot collects configuration values from various sources to customize behavior in different environments without changing code.
- The Environment object in Spring Boot holds a list of sources like files, system variables, and startup arguments.
- Configuration sources are converted into PropertySource objects and prioritized based on a predefined order.
- Spring Boot processes configuration sources in a specific order, with command-line arguments taking precedence over other sources.
- External configuration files can be loaded using parameters like spring.config.location or through environment variables.
- Spring Boot uses loaders to convert application.yml or application.properties files into key-value pairs for easier access.
- Property sources are scanned and loaded using property loaders implemented based on file types.
- Spring Boot resolves property conflicts by following a 'first one wins' process, picking the first occurrence of a property.
- Property lookup in Spring Boot is consistent across different sources, including YAML files, environment variables, and command-line flags.
- Spring supports placeholder syntax for referencing properties within other properties, aiding in clean configuration.
Read Full Article
20 Likes
For uninterrupted reading, download the app