No appenders could be found for logger(log4j)?

Question

I have put log4j to my buildpath, but I get the following message when I run my application:

log4j:WARN No appenders could be found for logger (dao.hsqlmanag         


        

Answer 1

First of all: Create a log4j.properties file

# Root logger option
log4j.rootLogger=INFO, stdout

# Direct log messages to stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n

Place it in src/main/resources/

After that, use this 2 dependencies:

            org.slf4j
            slf4j-api
            1.7.5
        
        
            org.slf4j
            slf4j-log4j12
            1.7.5
        

It is necessary to add this final dependency to POM file:

        
            org.springframework
            spring-context
            5.1.5.RELEASE