Spring Boot FAQ: Top Questions

The @Value annotation is used to inject values into fields from application properties or system environment.

📥 Example:

@Value("${app.title}")
private String appTitle;

📘 Explanation:

• Can inject from application.properties or environment variables.
• Supports default values using : syntax (e.g., @Value("${name:default}")).

🏆 Expected Output:

Injects "app.title" property into field.

🛠️ Use Cases:

• Accessing config without full binding class.
• Quick configuration for constants.