specific logs for multiple war having one ear approach

Question

具有一个耳朵的多个战争的特定日志。如何使用log4j2.xml配置相同，因为我无法在此找到任何帮助。我有5个战争有一个耳朵，当我配置日志所有战争日志打印到只有一个日志文件首先由类loader.i加载。我希望我的日志文件在单耳的每场战争中分开。任何帮助将不胜感激。

Answer 1

configuration xml:

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="WARN">
    <Appenders>
        <RollingFile name="app4war1" fileName="/logs/war1/app.log" filePattern="/logs/war1/app-%d{MM-dd-yyyy}.log.gz" ignoreExceptions="false">
            <PatternLayout>
                <Pattern>%d %p %c{1.} [%t] %m%n</Pattern>
            </PatternLayout>
            <TimeBasedTriggeringPolicy />
        </RollingFile>
        <RollingFile name="app4war2" fileName="/logs/war2/app.log" filePattern="/logs/war2/app-%d{MM-dd-yyyy}.log.gz" ignoreExceptions="false">
            <PatternLayout>
                <Pattern>%d %p %c{1.} [%t] %m%n</Pattern>
            </PatternLayout>
            <TimeBasedTriggeringPolicy />
        </RollingFile>
        <Console name="STDOUT" target="SYSTEM_OUT">
            <PatternLayout pattern="%d %p %c{1.} [%t] %m%n"/>
        </Console>
    </Appenders>
    <Loggers>
        <Logger name="log4war1" level="trace">
            <AppenderRef ref="app4war1" />
        </Logger>
        <Logger name="log4war2" level="trace">
            <AppenderRef ref="app4war2" />
        </Logger>
        <Root level="error">
            <AppenderRef ref="STDOUT" />
        </Root>
    </Loggers>
</Configuration>

and in your web applications use your own implementaion of LogManager.

package myloggermanagerimpl;

import org.apache.logging.log4j.Logger;

public class LogManager {

    private static final String prefix = "log4war1.";

    public static Logger getLogger(){
        return org.apache.logging.log4j.LogManager.getLogger(prefix);
    }

    public static Logger getLogger(Class<?> clazz){
        return org.apache.logging.log4j.LogManager.getLogger(prefix + clazz.getName());
    }

    // and other getLogger() methods in the same manner

}

now, you should implement this class in each of your web projects changing prefix for each. then refactor your projects to change import org.apache.logging.log4j.LogManager; to import myloggermanagerimpl.LogManager;