Setting up SLF4J and Log4j2

We will now implement several logging frameworks, including Logback and Log4j2, in our Spring Boot application. Remember that SLF4J is already included.

Configuring Logback

Logback is the default logger used by Spring Applications, so no dependencies need to be installed to use it. The spring-boot-starter-logging dependency is already included once we create our Spring Boot application. The first step we need to take is to make our Logback configuration file.

In our project, under the resources folder, we will add the logback-spring.xml file. This is where we will place our Logback configuration. The following is an example configuration:

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <property name="LOGS" value="./logs" />
    <!—Please refer to the logback-spring.xml of
       the GitHub...