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From: Louis Smith <dr.louis.smith@gmail.com>
Date: Tue, 24 Oct 2017 12:40:36 -0400
Message-ID: <CAJxTgse+SvCBQspbDyftmjxbhF=RJzE-vi1CYiw6C=LZWEKN-Q@mail.gmail.com>
Subject: Re: Log4j2 configuration with struts 2.5.x
To: Struts Developers List <dev@struts.apache.org>
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archived-at: Tue, 24 Oct 2017 16:40:45 -0000

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1) Maven Dependencies:

We do a lot of logging, and have a lot of libraries that bring their own
requirements, so this is what we have:

In the <properties> stanza:

  <properties>
      <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
      <jdk.version>1.8</jdk.version>
      <struts.version>2.5.13</struts.version>
      <tiles.version>3.0.7</tiles.version>
      <spring.version>4.1.0.RELEASE</spring.version>
      <org.springframework.version>4.1.0.RELEASE</org.springframework.version>
      <hibernate.version>5.1.0.Final</hibernate.version>
<log4j2.version>2.6.2</log4j2.version>
<jboss.logging.version>3.2.0.Final</jboss.logging.version>
      <jersey.version>2.22.4</jersey.version>
<slf.version>1.7.12</slf.version>
  </properties>


in the dependencies:

      <dependency>
          <groupId>org.apache.logging.log4j</groupId>
          <artifactId>log4j-core</artifactId>
          <version>${log4j2.version}</version>
      </dependency>
      <dependency>
          <groupId>org.apache.logging.log4j</groupId>
          <artifactId>log4j-api</artifactId>
          <version>${log4j2.version}</version>
      </dependency>
<!-- This is required for freemarker -->
      <dependency>
          <groupId>org.apache.logging.log4j</groupId>
          <artifactId>log4j-1.2-api</artifactId>
          <version>${log4j2.version}</version>
      </dependency>
<!-- In case you use SLF4J -->
      <dependency>
          <groupId>org.apache.logging.log4j</groupId>
          <artifactId>log4j-slf4j-impl</artifactId>
          <version>${log4j2.version}</version>
      </dependency>
      <dependency>
          <groupId>org.jboss.logging</groupId>
          <artifactId>jboss-logging</artifactId>
          <version>${jboss.logging.version}</version>
      </dependency>


2) log4j2.xml (not a properties file at this time...)

Put your contextRoot as the log-name

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="ERROR">
    <Properties>
        <Property name="log-name">BusinessPortal</Property>
        <Property name="log-home">${sys:LOG_HOME}</Property>
        <Property name="log-level">${sys:LOG_LEVEL}</Property>
        <Property name="log-size">${sys:LOG_MAXFILESIZE}</Property>
        <Property name="log-maxFiles">${sys:LOG_MAXBACKUPINDEX}</Property>
    </Properties>
    <Appenders>
        <RollingFile name="RollingFile"
                     fileName="${log-home}/${log-name}.log"

filePattern="${log-home}/${log-name}-%d{yyyy-MM-dd}-%i.log" >
            <PatternLayout>
                <pattern>%d{MM/dd/yyyy HH:mm:ss,SSS}- %c{10}: %m%n</pattern>
            </PatternLayout>
            <Policies>
                <SizeBasedTriggeringPolicy size="${log-size}" />
            </Policies>
            <DefaultRolloverStrategy>
                <Delete basePath="${log-home}" maxDepth="2">
                    <IfFileName glob="${log-name}*"/>
                    <IfAccumulatedFileCount exceeds="${log-maxFiles}"/>
                </Delete>
            </DefaultRolloverStrategy>
        </RollingFile>
    </Appenders>
    <Loggers>
        <Logger name="root" level="${log-level}" additivity="false">
            <appender-ref ref="RollingFile" level="${log-level}"/>
        </Logger>
        <Logger name="com.opensymphony.xwork2" level="ERROR" additivity="false">
            <appender-ref ref="RollingFile" level="ERROR"/>
        </Logger>
        <Logger name="org.hibernate" level="ERROR" additivity="false">
            <appender-ref ref="RollingFile" level="ERROR"/>
        </Logger>
        <Logger name="org.springframework" level="ERROR" additivity="false">
            <appender-ref ref="RollingFile" level="ERROR"/>
        </Logger>
        <Logger name="freemarker" level="ERROR" additivity="false">
            <appender-ref ref="RollingFile" level="ERROR"/>
        </Logger>
        <Logger name="org.apache.commons" level="ERROR" additivity="false">
            <appender-ref ref="RollingFile" level="ERROR"/>
        </Logger>
        <Logger name="org.apache.struts2" level="WARN" additivity="false">
            <appender-ref ref="RollingFile" level="WARN"/>
        </Logger>
        <Logger name="org.apache.tiles" level="WARN" additivity="false">
            <appender-ref ref="RollingFile" level="WARN"/>
        </Logger>
        <Root level="debug" additivity="false">
            <AppenderRef ref="RollingFile"/>
        </Root>
    </Loggers>
</Configuration>

3) In our server, we set environment variables used by the log4j2.xml, so
the environments (dev/beta/prod) can have different setup:

For weblogic, a setUserOverrides.cmd:

set JAVA_OPTIONS=%JAVA_OPTIONS%
-DLOG_HOME=/u01/projects/app-logs
-DLOG_LEVEL=DEBUG
-DLOG_MAXFILESIZE=500KB
-DLOG_MAXBACKUPINDEX=5
-DCOMMON_HOME=/u01/projects/common

for WildFly, add properties in standalone.xml - this from my laptop
development environment:

    <system-properties>
        <property name="SERVER_ENV_TYPE" value="LOCAL_DEV"/>
        <property name="LOG_LEVEL" value="DEBUG"/>
        <property name="LOG_MAXFILESIZE" value="500MB"/>
        <property name="LOG_MAXBACKUPINDEX" value="5"/>
        <property name="LOG_HOME" value="C:/srv/websites/app-logs"/>
        <property name="COMMON_HOME" value="C:/srv/websites/common"/>
    </system-properties>

Hope that helps!

Louis


On Tue, Oct 24, 2017 at 6:47 AM, ravirajmishra98@gmail.com <
ravirajmishra98@gmail.com> wrote:

> Hello,
>
> I have migrated my project from struts 2.3 to struts 2.5 .
> I am facing a problem while upgrading to log4j2 from log4j1
> I need help to configure the log4j2 with my system
>
> My questions are.
>
> 1. What jars I need to add to my system for log4j2
> 2. How to write the log4j.properties files for log4j2
>
> Thanks
>
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