logging.config configuration for spring boot

Question

I wanted to configure location of log4j.xml file in my spring boot application. For that I have added logging.config property to my application.properties configuration, indicating log4j.xml file path. But seems this property is ignored. But it should work accorindg to spring boot docs:

logging.config= # location of config file (default classpath:logback.xml for logback)

Have I did something wrong?

Answer 1

Spring Boot includes some starters that can be used if you want to exclude or swap specific technical facets. It's using logback by default, if you're gonna use log4j add spring-boot-starter-log4j in your classpath. For example, with maven it would be something like this:

<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-log4j2</artifactId>
            <version>1.2.4.RELEASE</version>
</dependency>

and for log4j 1.x:

<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-log4j</artifactId>
            <version>1.2.4.RELEASE</version>
</dependency>

Then add logging.config to your application.properties:

logging.config = classpath:path/to/log4j.xml