This project demonstrates Java's built-in logger capabilities through a simple Spring Boot REST controller. It serves as a practical example for configuring and using various logging levels within a Spring Boot application.
The Java Logger Intro Sample project is designed to help developers understand how to implement and configure Java’s inbuilt logging framework within a Spring Boot environment. It illustrates the usage of multiple logging levels to provide insights into system operations, warnings, errors, and detailed debugging information.
- Spring Boot REST Controller: Provides an endpoint to trigger logging.
- Multiple Logging Levels: Demonstrates INFO, WARN, ERROR, FATAL, DEBUG, and TRACE levels.
- Configurable Logging: Easy-to-customize logging settings using
application.properties.
- Java JDK 17 or later
- Maven build tool
- Basic understanding of Spring Boot
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Clone the repository:
https://github.com/GRB-Workspace/Java-Logger-Intro.git
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Navigate to the project directory:
cd Java-Logger-Intro -
Build and run the application:
mvn spring-boot:run
Once the application is running, you can access the sample REST endpoint at:
http://localhost:8085/logTriggering the endpoint will log messages using the different logging levels as configured.
The logging behavior is controlled through the application.properties file. For example, you can adjust the root logging level:
logging.level.root=INFO
logging.level.com.example=DEBUGModify these settings to increase or decrease log verbosity as needed.
- INFO: Logs general system information.
- WARN: Logs warnings about non-critical issues.
- ERROR: Logs critical errors.
- FATAL: Logs fatal errors that may cause the system to crash.
- DEBUG: Logs detailed information for debugging purposes.
- TRACE: Logs very detailed, step-by-step trace information.
Contributions are welcome! Please fork the repository and submit a pull request with your improvements.
This project is distributed under the MIT License.
Gayanuka Bulegoda
Website • GitHub
© 2025 Gayanuka Bulegoda