tomcat使用log4j管理日志

1、JDK+tomcat环境 参考：http://www.cnblogs.com/zzzhfo/p/6444029.html2、下载相关软件log4j下载地址http://www.apache.org/dist/logging/log4j/http://www.apache.org/dist/logging/log4j/1.2.17/http://www.apache.org/dist/logging/log4j/1.2.17/log4j-1.2.17.tar.gz 3、停止服务

shutdown.sh

将log4j.properties和log4j-1.2.17.jar放到tomcat/lib目录下

配置log4j.propertiestomcat每次启动时，自动在logs目录下生产以下日志文件，按照日期自动备份

localhost.2016-07-05.txt //经常用到的文件之一 ，程序异常没有被捕获的时候抛出的地方 catalina.2016-07-05.txt //经常用到的文件之一，程序的输出，tomcat的日志输出等等 manager.2016-07-05.txt //估计是manager项目专有的 host-manager.2016-07-05.txt//估计是manager项目专有的 localhost_access_log.2016-10-01.txt //tomcat访问日志记录，需要配置这里方便测试

'.'yyyy-MM-dd-HH-mm'.log'设置为每分钟

log4j.rootLogger = INFO, CATALINA

# Define all the appenders
log4j.appender.CATALINA = org.apache.log4j.DailyRollingFileAppender
log4j.appender.CATALINA.File = ${catalina.base}/logs/catalina
log4j.appender.CATALINA.Append = truelog4j.appender.CATALINA.Encoding = UTF-8
# Roll-over the log once per day
log4j.appender.CATALINA.DatePattern = '.'yyyy-MM-dd-HH-mm'.log'
log4j.appender.CATALINA.layout = org.apache.log4j.PatternLayout
log4j.appender.CATALINA.layout.ConversionPattern = %d [%t] %-5p %c- %m%n

log4j.appender.LOCALHOST = org.apache.log4j.DailyRollingFileAppender
log4j.appender.LOCALHOST.File = ${catalina.base}/logs/localhost
log4j.appender.LOCALHOST.Append = truelog4j.appender.LOCALHOST.Encoding = UTF-8
log4j.appender.LOCALHOST.DatePattern = '.'yyyy-MM-dd-HH-mm'.log'
log4j.appender.LOCALHOST.layout = org.apache.log4j.PatternLayout
log4j.appender.LOCALHOST.layout.ConversionPattern = %d [%t] %-5p %c- %m%n

log4j.appender.MANAGER = org.apache.log4j.DailyRollingFileAppender
log4j.appender.MANAGER.File = ${catalina.base}/logs/manager
log4j.appender.MANAGER.Append = truelog4j.appender.MANAGER.Encoding = UTF-8
log4j.appender.MANAGER.DatePattern = '.'yyyy-MM-dd-HH-mm'.log'
log4j.appender.MANAGER.layout = org.apache.log4j.PatternLayout
log4j.appender.MANAGER.layout.ConversionPattern = %d [%t] %-5p %c- %m%n

log4j.appender.HOST-MANAGER = org.apache.log4j.DailyRollingFileAppender
log4j.appender.HOST-MANAGER.File = ${catalina.base}/logs/host-manager
log4j.appender.HOST-MANAGER.Append = truelog4j.appender.HOST-MANAGER.Encoding = UTF-8
log4j.appender.HOST-MANAGER.DatePattern = '.'yyyy-MM-dd-HH-mm'.log'
log4j.appender.HOST-MANAGER.layout = org.apache.log4j.PatternLayout
log4j.appender.HOST-MANAGER.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

# Configure which loggers log to which appenders
log4j.logger.org.apache.catalina.core.ContainerBase.[Catalina].[localhost] = INFO, LOCALHOST
log4j.logger.org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/manager] =\
INFO, MANAGER
log4j.logger.org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/host-manager] =\
INFO, HOST-MANAGER
官网下载 tomcat-juli.jar和tomcat-juli-adapters.jar包。

https://tomcat.apache.org/https://tomcat.apache.org/download-70.cgihttp://mirrors.hust.edu.cn/apache/tomcat/tomcat-7/v7.0.77/bin/extras/tomcat-juli-adapters.jarhttp://mirrors.hust.edu.cn/apache/tomcat/tomcat-7/v7.0.77/bin/extras/tomcat-juli.jar

将tomcat-juli-adapters.jar包放到tomcat/lib目录下

将tomcat-juli.jar包放到tomcat/bin目录下（替换原有的）

删除或重命名tomcat/conf目录下的logging.properties文件

修改tomcat/conf/目录下context.xml

将<Context>改为<Context swallowOutput="true">

[root@localhost conf]# cat context.xml
<?xml version='1.0' encoding='utf-8'?>
<!--
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.-->
<!-- The contents of this file will be loaded for each web application -->

<!--<Context swallowOutput="true"> -->

<Context swallowOutput="true">

<!-- Default set of monitored resources -->
<WatchedResource>WEB-INF/web.xml</WatchedResource>
<!-- Uncomment this to disable session persistence across Tomcat restarts -->
<!--
<Manager pathname="" />
-->
<!-- <Context swallowOutput="true"> -->
<!-- Uncomment this to enable Comet connection tacking (provides events
on session expiration as well as webapp lifecycle) -->
<!--
<Valve className="org.apache.catalina.valves.CometConnectionManagerValve" />
-->

</Context>

启动服务

[root@localhost tomcat]# bin/startup.sh
Using CATALINA_BASE:   /usr/local/tomcat
Using CATALINA_HOME:   /usr/local/tomcat
Using CATALINA_TMPDIR: /usr/local/tomcat/temp
Using JRE_HOME:        /usr/local/jdk1.7.0_79
Using CLASSPATH:       /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar
Tomcat started.

查看日志 首先要访问自己的工程，让其产生日志。

[root@localhost logs]# ls
catalina.2017-04-19-13-48.log      catalina.out.2017-04-23-18-43.log  catalina.out.2017-04-23-19-14.log  localhost                            localhost.log.2017-04-19-14-35.log
catalina.out                       catalina.out.2017-04-23-18-58.log  catalina.out.2017-04-23-19-15.log  localhost.2017-04-19-13-48.log       localhost.log.2017-04-19-14-36.log
catalina.out.2017-04-19-13-51.log  catalina.out.2017-04-23-19-04.log  catalina.out.2017-04-23-19-20.log  localhost.2017-04-19-13-50.log       localhost.log.2017-04-19-15.log
catalina.out.2017-04-19-13-55.log  catalina.out.2017-04-23-19-07.log                                localhost.2017-04-19-13-51.log       localhost.log.2017-04-23-18.log
catalina.out.2017-04-19-14-35.log  catalina.out.2017-04-23-19-08.log                               localhost_access_log.2017-04-19.txt  manager
catalina.out.2017-04-19-14-36.log  catalina.out.2017-04-23-19-09.log  host-manager                       localhost_access_log.2017-04-23.txt  manager.log
catalina.out.2017-04-19-15.log     catalina.out.2017-04-23-19-10.log  host-manager.log                   localhost.log
catalina.out.2017-04-23-18-42.log  catalina.out.2017-04-23-19-13.log                                localhost.log.2017-04-19-13-55.log

本文出自http://www.cnblogs.com/zzzhfo/p/6729333.html