log4j: registro específico del paquete

Question

¿Cómo puedo configurar log4j para que se registre en un archivo diferente según el nombre del paquete?

por ejemplo:

com.myname.fred logs to fred.log 
com.myname.derek logs to derek.log 

estoy usando el archivo de propiedades de configuración de formato. Actualmente está configurado para el servidor, y quiero dejarlo solo y agregar cosas para mi registro.

Esto es lo que se ve el archivo de propiedades como:

## 
## Licensed to the Apache Software Foundation (ASF) under one or more 
## contributor license agreements. See the NOTICE file distributed with 
## this work for additional information regarding copyright ownership. 
## The ASF licenses this file to You under the Apache License, Version 2.0 
## (the "License"); you may not use this file except in compliance with 
## the License. You may obtain a copy of the License at 
## 
## http://www.apache.org/licenses/LICENSE-2.0 
## 
## Unless required by applicable law or agreed to in writing, software 
## distributed under the License is distributed on an "AS IS" BASIS, 
## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
## See the License for the specific language governing permissions and 
## limitations under the License. 
## 
## $Rev: 564818 $ $Date: 2007-08-10 22:28:29 -0400 (Fri, 10 Aug 2007) $ 
## 

log4j.rootLogger=INFO, CONSOLE, FILE 

log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender 
log4j.appender.CONSOLE.Threshold=${org.apache.geronimo.log.ConsoleLogLevel} 
log4j.appender.CONSOLE.Target=System.out 
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout 
log4j.appender.CONSOLE.layout.ConversionPattern=%d{ABSOLUTE} %-5p [%c{1}] %m%n 

log4j.appender.FILE=org.apache.log4j.RollingFileAppender 
log4j.appender.FILE.Threshold=TRACE 
log4j.appender.FILE.layout=org.apache.log4j.PatternLayout 
log4j.appender.FILE.layout.ConversionPattern=%d{ABSOLUTE} %-5p [%c{1}] %m%n 

# 
# Note, changing log4j.appender.FILE.append=false will result in logs being 
# overwritten without archiving the previous version of the log. 
# 
log4j.appender.FILE.append=true 
log4j.appender.FILE.file=${org.apache.geronimo.server.dir}/var/log/geronimo.log 
log4j.appender.FILE.bufferedIO=false 
log4j.appender.FILE.maxBackupIndex=3 
log4j.appender.FILE.maxFileSize=10MB 

# 
# Example: enable trace logging from CONSOLE appender 
# 
#log4j.appender.CONSOLE.Threshold=TRACE#org.apache.geronimo.system.logging.log4j.XLevel 

# 
# Example: enable trace messages from foo.bar category 
# 
#log4j.logger.foo.bar=TRACE#org.apache.geronimo.system.logging.log4j.XLevel 

# Geronimo 
#This will help find connection leak problems 
#log4j.logger.org.apache.geronimo.connector.outbound=TRACE#org.apache.geronimo.system.logging.log4j.XLevel 
log4j.logger.org.apache.geronimo.system.logging.log4j.Log4jService=INFO 

#### Eliminate any INFO level output during normal operation -- except the really relevant stuff #### 
# We can change the Geronimo code to avoid this, but we have to just adjust the log levels for 
# any third-party libraries. 
log4j.logger.org.apache.commons.digester=ERROR 
log4j.logger.org.apache.jasper.compiler.SmapUtil=WARN 

# ActiveMQ 
log4j.logger.org.apache.activemq=WARN 
log4j.logger.org.apache.activemq.broker.jmx.ManagementContext=ERROR 

# Don't need so much info on every web page that's rendered 
log4j.logger.org.mortbay=INFO 
log4j.logger.org.apache.pluto=INFO 
log4j.logger.org.apache.jasper=INFO 

# Various Jetty startup/shutdown output 
log4j.logger.org.mortbay.http.HttpServer=WARN 
log4j.logger.org.mortbay.http.SocketListener=WARN 
log4j.logger.org.mortbay.http.ajp.AJP13Listener=WARN 
log4j.logger.org.mortbay.util.Container=WARN 
log4j.logger.org.mortbay.util.Credential=WARN 
log4j.logger.org.mortbay.util.ThreadedServer=WARN 
log4j.logger.org.mortbay.jetty.servlet.WebApplicationContext=WARN 
log4j.logger.org.mortbay.jetty.context=WARN 

# Various Tomcat startup output 
log4j.logger.org.apache.catalina.realm.JAASRealm=WARN 
log4j.logger.org.apache.catalina.realm.RealmBase=WARN 
log4j.logger.org.apache.catalina.loader.WebappLoader=WARN 
log4j.logger.org.apache.catalina.startup.Embedded=WARN 
log4j.logger.org.apache.catalina.core.StandardEngine=WARN 
log4j.logger.org.apache.catalina.core.StandardHost=WARN 
log4j.logger.org.apache.jk.common.ChannelSocket=WARN 
log4j.logger.org.apache.jk.server.JkMain=WARN 
log4j.logger.org.apache.coyote.http11.Http11BaseProtocol=WARN 
log4j.logger.org.apache.coyote.http11.Http11Protocol=WARN 
log4j.logger.org.apache.catalina.core.ContainerBase=WARN 
log4j.logger.org.apache.catalina.core.StandardContext=WARN 
log4j.logger.org.apache.tomcat.util.net.SSLImplementation=WARN 

# myfaces startup output 
log4j.logger.org.apache.myfaces.renderkit.html.HtmlRenderKitImpl=WARN 
log4j.logger.org.apache.myfaces.config.FacesConfigurator=WARN 
log4j.logger.org.apache.myfaces.webapp.StartupServletContextListener=WARN 
log4j.logger.org.apache.myfaces.webapp.StartupServletContextListener=WARN 

# emits a spurious warn about null locale during startup of webapps 
log4j.logger.org.apache.myfaces.shared_impl.util.LocaleUtils=ERROR 

# Emits a spurious WARN during startup on /some-path/* security mappings 
log4j.logger.org.apache.catalina.deploy.SecurityCollection=ERROR 

# Prints the MBean Server ID 
log4j.logger.javax.management.MBeanServerFactory=WARN 

# Prints the RMI connection URL 
log4j.logger.javax.management.remote.rmi.RMIConnectorServer=WARN 
log4j.logger.javax.management.remote.JMXServiceURL=WARN 

# Prints various stuff during startup 
log4j.logger.org.apache.juddi.registry.RegistryServlet=WARN 

# Prints various stuff when the portal is used 
log4j.logger.org.apache.pluto.portalImpl.Servlet=WARN 

# Prints stuff for AJAX calls 
log4j.logger.uk.ltd.getahead.dwr.impl.DefaultConfiguration=WARN 
log4j.logger.uk.ltd.getahead.dwr.impl.ExecuteQuery=WARN 
log4j.logger.uk.ltd.getahead.dwr.util.Logger=WARN 

Answer 1

Tienes que crear dos nuevas appenders y establecer la aditividad en consecuencia.

log4j.appender.FRED=org.apache.log4j.RollingFileAppender 
log4j.appender.FRED.File=/path/to/fred.log 
log4j.appender.FRED.layout=org.apache.log4j.PatternLayout 

log4j.appender.DEREK=org.apache.log4j.RollingFileAppender 
log4j.appender.DEREK.File=/path/to/derek.log 
log4j.appender.DEREK.layout=org.apache.log4j.PatternLayout 

log4j.additivity.com.myname.fred=false 
log4j.additivity.com.myname.derek=false 

log4j.logger.com.myname.fred=DEBUG, FRED 
log4j.logger.com.myname.derek=DEBUG, DEREK 

Actualización: Solo compruebe si necesita agregar la siguiente línea.

log4j.rootLogger=DEBUG, R, FRED, DEREK 

Dónde R es su archivo de registro regular que registra todo excepto FRED y DEREK.

Answer 2

log4j.logger.com.myname.fred=LEVEL, appenderNameForFred 
log4j.logger.com.myname.derek=LEVEL, appenderNameForDerek