关于log4j的问题，大家帮忙看看

2011-06-17 07:03:55 397 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

Log4j日志重复打印问题的解决方案在Lab4中配置Log4j日志的时候，发现日志重复打印的问题。网上查了很多资料，发现介绍Log4j配置的文章数量不少，但提提供解决这个问题的方法却很少首先看一下我的日志的配置： log4j.rootLogger = debug,D,E,info log4j.appender.D = org.apache.log4j.DailyRollingFileAppender log4j.appender.D.File = logs.txt log4j.appender.D.Append = true log4j. 阅读详情

### set log levels ###
log4j.rootLogger = debug , D , E

### 输出到控制台 ###
###log4j.appender.stdout = org.apache.log4j.ConsoleAppender
###log4j.appender.stdout.Target = System.out
###log4j.appender.stdout.layout = org.apache.log4j.PatternLayout
###log4j.appender.stdout.layout.ConversionPattern = %d{ABSOLUTE} %5p %c{1}:%L - %m%n

### 输出到日志文件 ###
log4j.appender.D = org.apache.log4j.DailyRollingFileAppender
log4j.appender.D = org.apache.log4j.RollingFileAppender
log4j.appender.D.File = logs/log.log
log4j.appender.D.Append = true
log4j.appender.D.Threshold = debug ## 输出DEBUG级别以上的日志.
log4j.appender.D.MaxFileSize = 5MB
log4j.appender.D.MaxBackupIndex = 100
log4j.appender.D.layout = org.apache.log4j.PatternLayout
###log4j.appender.D.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n

log4j.appender.E = org.apache.log4j.
log4j.appender.E = org.apache.log4j.RollingFileAppender
log4j.appender.E.File = logs/error.log
log4j.appender.E.Append = true
log4j.appender.E.Threshold = error ## 只输出ERROR级别以上的日志!!!
log4j.appender.E.MaxFileSize = 5MB
log4j.appender.E.MaxBackupIndex = 100
log4j.appender.E.layout = org.apache.log4j.PatternLayout

上面是我的log4j的文件配置，在启动时有下面的提示信息
2011-6-17 19:02:18 org.apache.catalina.core.AprLifecycleListener init
信息: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: E:\worktools\jdk1.6.0_12\bin;E:\worktools\apache-tomcat-6.0.29\bin
2011-6-17 19:02:18 org.apache.coyote.http11.Http11Protocol init
信息: Initializing Coyote HTTP/1.1 on http-8080
2011-6-17 19:02:18 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 1171 ms
2011-6-17 19:02:19 org.apache.catalina.core.StandardService start
信息: Starting service Catalina
2011-6-17 19:02:19 org.apache.catalina.core.StandardEngine start
信息: Starting Servlet Engine: Apache Tomcat/6.0.29
2011-6-17 19:02:19 org.apache.catalina.startup.HostConfig deployDescriptor
信息: Deploying configuration descriptor host-manager.xml
2011-6-17 19:02:19 org.apache.catalina.startup.HostConfig deployDescriptor
信息: Deploying configuration descriptor manager.xml
2011-6-17 19:02:19 org.apache.catalina.startup.HostConfig deployWAR
信息: Deploying web application archive chartdir.war
2011-6-17 19:02:19 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory docs
2011-6-17 19:02:19 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory examples
2011-6-17 19:02:19 org.apache.catalina.core.ApplicationContext log
信息: ContextListener: contextInitialized()
2011-6-17 19:02:19 org.apache.catalina.core.ApplicationContext log
信息: SessionListener: contextInitialized()
2011-6-17 19:02:19 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory hd
2011-6-17 19:02:19 org.apache.catalina.loader.WebappClassLoader validateJarFile
信息: validateJarFile(E:\worktools\apache-tomcat-6.0.29\webapps\hd\WEB-INF\lib\servlet-api.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class
2011-6-17 19:02:20 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory iWebOffice
2011-6-17 19:02:20 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory JPower2000
log4j:WARN custom level class [# ????DEBUG??±???????????.] not found.
log4j:WARN custom level class [# ??????ERROR??±???????????!!!] not found.
2011-6-17 19:02:21 org.apache.catalina.core.ApplicationContext log
信息: Initializing Spring root WebApplicationContext
2011-6-17 19:02:31 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory ROOT
2011-6-17 19:02:31 org.apache.coyote.http11.Http11Protocol start
信息: Starting Coyote HTTP/1.1 on http-8080
2011-6-17 19:02:31 org.apache.jk.common.ChannelSocket init
信息: JK: ajp13 listening on /0.0.0.0:8009
2011-6-17 19:02:31 org.apache.jk.server.JkMain start
信息: Jk running ID=0 time=0/31 config=null
2011-6-17 19:02:31 org.apache.catalina.startup.Catalina start
信息: Server startup in 12518 ms

但是在log日志里面的log.log error.log的内容完全一样，问题应该是
log4j:WARN custom level class [# ????DEBUG??±???????????.] not found.
log4j:WARN custom level class [# ??????ERROR??±???????????!!!] not found.
麻烦各位知道原因的给解决一下，解决之后马上散分

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