Tomcat under log4j take over logs and split by date



Tomcat under use log4j take over catalina.out log file generation method, store by day, solve catalina.out log file too big problem

1. Prepare the jar package:

Log4j-1.2.17.jar (download from http://www.apache.org/dist/logging/log4j/1.2.17/)

Tomcat-juli.jar, Tomcat-juli-adapters.jar (downloaded from http://www.apache.org/dist/tomcat/tomcat-7/v7.0.52/bin/extras/, Select the corresponding branch based on your Tomcat version)

2. Copy the above three jar packages to the Tomcat Lib directory;

3. Copy the Tomcat-juli.jar to the Tomcat bin directory and replace the original jar package;

4. Modify Tomcat's Conf/context.xml file to <Context> <context swallowoutput= "true" >

(Add swallowoutput= "true" to the property configuration, only in order to fully take the Tomcat stdout to take over.) This step is crucial in the official website and the internet to find a lot of information is not mentioned. ）；

5. Delete Tomcat's conf/logging.properties file (or rename-suggest);

6. Create the Log4j.properties file in the Tomcat lib directory:

Log4j.rootlogger=info, CATALINA

# Define all the Appenders
Log4j.appender.catalina=org.apache.log4j.dailyrollingfileappender
Log4j.appender.catalina.file=${catalina.base}/logs/catalina.out
Log4j.appender.catalina.append=true
Log4j.appender.catalina.encoding=utf-8
# Roll-over The log once per day
Log4j.appender.catalina.datepattern= '. ' Yyyy-mm-dd '. Log '
Log4j.appender.CATALINA.layout = Org.apache.log4j.PatternLayout
Log4j.appender.CATALINA.layout.ConversionPattern =%d [%t]%-5p%c-%m%n

Log4j.appender.console=org.apache.log4j.consoleappender
Log4j.appender.console.encoding=utf-8
Log4j.appender.CONSOLE.layout = Org.apache.log4j.PatternLayout
Log4j.appender.CONSOLE.layout.ConversionPattern =%d [%t]%-5p%c-%m%n