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| <h1>Application Server Integration</h1> |
| <p>The Application Server module provides support for integrating Log4j into various Java Application Servers.</p><section> |
| <h2><a name="Apache_Tomcat"></a>Apache Tomcat</h2> |
| <p>Log4j may be used as the logging framework for Apache Tomcat. This support is implemented automatically by including the log4j-api, log4j-core, and log4j-appserver jars in the boot classpath. A file named log4j2-tomcat.xml, log4j2-tomcat.json, log4j2-tomcat.yaml, log4j2-tomcat.yml, or log4j2-tomcat.properties must also be placed in the boot classpath. This is most easily done by:</p> |
| <ol style="list-style-type: decimal"> |
| |
| <li>Creating a set of directories in catalina home named log4j2/lib and log4j2/conf.</li> |
| <li>Placing log4j2-api-2.13.0.jar, log4j2-core-2.13.0.jar, and log4j2-appserver-2.13.0.jar in the log4j2/lib directory.</li> |
| <li>Creating a file named log4j2-tomcat.xml, log4j2-tomcat.json, log4j2-tomcat.yaml, log4j2-tomcat.yml, or log4j2-tomcat.properties in the log4j2/conf directory.</li> |
| <li>Create or modify setenv.sh in the tomcat bin directory to include CLASSPATH=$CATALINA_HOME/log4j2/lib/*:$CATALINA_HOME/log4j2/conf</li> |
| </ol><section> |
| <h3><a name="Requirements"></a>Requirements</h3> |
| <p>Requires Tomcat 8.5 or later.</p></section></section><section> |
| <h2><a name="Eclipse_Jetty"></a>Eclipse Jetty</h2> |
| <p>Log4j may be used as the logging framework for Eclipse Jetty.</p> |
| <p>To direct Jetty to use this class, set the system property org.eclipse.jetty.util.log.class to org.apache.logging.log4j.appserver.jetty.Log4j2Logger.</p> |
| <p>From the command line with: -Dorg.eclipse.jetty.util.log.class = org.apache.logging.log4j.appserver.jetty.Log4j2Logger</p> |
| <p>Programmatically with: System.setProperty("org.eclipse.jetty.util.log.class", "org.apache.logging.log4j.appserver.jetty.Log4j2Logger");</p></section> |
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