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SUBSCRIBE NOWImplementing Log4j2 in Spring Boot
Logging is an essential part of any application, and while Spring Boot uses Logback by default, many enterprise applications prefer Log4j2. Why? Because Log4j2 offers significant performance improvements, especially with asynchronous logging, and a more robust configuration system.
Why Switch to Log4j2?
Log4j2 is the successor to the classic Log4j and is designed to provide the best possible performance. It uses a LMAX Disruptor library for asynchronous logging, which means your application doesn't have to wait for the log message to be written to a file before continuing its work.
Quick Setup Guide
To get started, you first need to exclude the default logging starter and add the Log4j2 starter to your pom.xml:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j2</artifactId>
</dependency>
Simple Configuration
Place a file named log4j2-spring.xml in your src/main/resources folder. This is where you define how your logs should look and where they should be saved. Spring Boot will automatically pick up this file and apply your settings.
More Logging Tutorials
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