Log4j.properties in Spring boot

Question

How to load Custom Log4j.properties file in Spring boot

My code in application.properties is here

logging.file=E:/Apps_Tek/apps-webservices-log/apps-         


        

Answer 1

To exclude default logging and include the log4j dependency for spring boot in your pom.xml:

    
        org.springframework.boot
        spring-boot-starter
        
            
                org.springframework.boot
                spring-boot-starter-logging
            
        
    
    
        org.springframework.boot
        spring-boot-starter-log4j2
    

if you wish to use log4j properties defined in you application.properties inside the log4j.properties file need to add below property in application.properties file.

logging.config = src/main/resources/log4j2.properties

Then spring boot will read the properties from log4j2.properties file

In log4j2.properties file add the below properties

name=PropertiesConfig
appenders = console, file

appender.console.type = Console
appender.console.name = ConsoleAppender
appender.console.layout.type = PatternLayout
appender.console.layout.pattern = %d{MM:dd HH:mm:ss.SSS} [%t] [%level] [%logger{36}] - %msg%n

appender.file.type = File
appender.file.name = FileAppender
appender.file.fileName=/home/ubuntu/application.log
appender.file.layout.type=PatternLayout
appender.file.layout.pattern= %d{MM:dd HH:mm:ss.SSS} [%t] [%level] [%logger{36}] - %msg%n

loggers=file
logger.file.name=com.project
logger.file.level = debug
logger.file.appenderRefs = file
logger.file.appenderRef.file.ref = FileAppender

rootLogger.level = debug
rootLogger.appenderRefs = stdout
rootLogger.appenderRef.stdout.ref = ConsoleAppender

Is there any other work around which doesnot require to specify 'logging.config = src/main/resources/log4j2.properties' inside application.properties file..?

Note : Spring boot version i am using is 2.1.3.RELEASE

Reference : https://docs.spring.io/spring-boot/docs/current/reference/html/howto-logging.html