怎样把控制台输出的信息记录在tomcat的日志呢？

给你我的log4j.properties。放到classpath就行

#日志级别有：OFF、FATAL、ERROR、WARN、INFO、DEBUG、TRACE、ALL
log4j.rootLogger=ALL,Console,RollingFile
#修改第三方日志级别，开启想看到的日志
log4j.logger.org.springframework.jdbc.datasource.init=INFO
log4j.logger.org.nutz.dao.impl.sql.run.NutDaoExecutor=DEBUG
#修改第三方类库的日志级别，避免看到太多不关心的日志
log4j.logger.org.apache.shiro=ERROR
log4j.logger.org.springframework=ERROR
log4j.logger.net.bull.javamelody=ERROR
log4j.logger.org.mybatis=ERROR
log4j.logger.org.apache.ibatis=ERROR
log4j.logger.com.alibaba.druid=ERROR
log4j.logger.net.sf.ehcache=ERROR
log4j.logger.org.quartz=ERROR
log4j.logger.org.apache.hadoop=ERROR
log4j.logger.org.apache.zookeeper=ERROR
log4j.logger.org.nutz=ERROR
log4j.logger.org.apache.http=ERROR
#控制台日志
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.Target=System.out
log4j.appender.Console.Threshold=DEBUG
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=[%p][%d{yyyy-MM-dd HH\:mm\:ss,SSS}][%l]%m%n
#每小时生成一个日志文件
log4j.appender.RollingFile=org.apache.log4j.DailyRollingFileAppender
log4j.appender.RollingFile.Threshold=ALL
log4j.appender.RollingFile.file=../logs/log
log4j.appender.RollingFile.DatePattern='_'yyyyMMdd_HH'.txt'
log4j.appender.RollingFile.layout=org.apache.log4j.PatternLayout
log4j.appender.RollingFile.layout.ConversionPattern=[%p][%d{yyyy-MM-dd HH\:mm\:ss,SSS}][%l]%m%n

qq_16dd5808 2楼•3017天前

文件名称必须叫log4j.properties

Hamming(tonyyule)

3楼•3017天前

@qq_16dd5808 目前我的log4j是这样配置的没有spring 没有mybatis

log4j.rootLogger=debug, BLUEJAY
log4j.category.org.nutz=debug, BLUEJAY

log4j.additivity.org.nutz=false

#Appenders ...
log4j.appender.BLUEJAY=org.apache.log4j.ConsoleAppender
log4j.appender.BLUEJAY.layout=org.apache.log4j.PatternLayout
log4j.appender.BLUEJAY.layout.ConversionPattern=%d [%t] %-5p %c - %m%n

改怎么改写呢

qq_16dd5808 4楼•3017天前

没有也无所谓啊，不会报错。看不惯就删掉也行，其他的不用改

Hamming(tonyyule)

5楼•3017天前

@qq_16dd5808 那现在改成酱紫没问题吧

#日志级别有：OFF、FATAL、ERROR、WARN、INFO、DEBUG、TRACE、ALL
log4j.rootLogger=ALL,Console,RollingFile
#修改第三方日志级别，开启想看到的日志
log4j.logger.org.springframework.jdbc.datasource.init=INFO
log4j.logger.org.nutz.dao.impl.sql.run.NutDaoExecutor=DEBUG
#修改第三方类库的日志级别，避免看到太多不关心的日志
log4j.logger.org.apache.shiro=ERROR
log4j.logger.org.springframework=ERROR
log4j.logger.net.bull.javamelody=ERROR
log4j.logger.org.mybatis=ERROR
log4j.logger.org.apache.ibatis=ERROR
log4j.logger.com.alibaba.druid=ERROR
log4j.logger.net.sf.ehcache=ERROR
log4j.logger.org.quartz=ERROR
log4j.logger.org.apache.hadoop=ERROR
log4j.logger.org.apache.zookeeper=ERROR
log4j.logger.org.nutz=ERROR
log4j.logger.org.apache.http=ERROR
#控制台日志
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.Target=System.out
log4j.appender.Console.Threshold=DEBUG
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=[%p][%d{yyyy-MM-dd HH\:mm\:ss,SSS}][%l]%m%n
#每小时生成一个日志文件
log4j.appender.RollingFile=org.apache.log4j.DailyRollingFileAppender
log4j.appender.RollingFile.Threshold=ALL
log4j.appender.RollingFile.file=../logs/log
log4j.appender.RollingFile.DatePattern='_'yyyyMMdd_HH'.txt'
log4j.appender.RollingFile.layout=org.apache.log4j.PatternLayout
log4j.appender.RollingFile.layout.ConversionPattern=[%p][%d{yyyy-MM-dd HH\:mm\:ss,SSS}][%l]%m%n

Hamming(tonyyule)

6楼•3017天前

@qq_16dd5808

log4j.rootLogger=debug, BLUEJAY
log4j.category.org.nutz=debug, BLUEJAY

log4j.additivity.org.nutz=false

#Appenders ...
log4j.appender.BLUEJAY=org.apache.log4j.ConsoleAppender
log4j.appender.BLUEJAY.layout=org.apache.log4j.PatternLayout
log4j.appender.BLUEJAY.layout.ConversionPattern=%d [%t] %-5p %c - %m%n

#日志级别有：OFF、FATAL、ERROR、WARN、INFO、DEBUG、TRACE、ALL
log4j.rootLogger=ALL,Console,RollingFile
#修改第三方日志级别，开启想看到的日志
log4j.logger.org.springframework.jdbc.datasource.init=INFO
log4j.logger.org.nutz.dao.impl.sql.run.NutDaoExecutor=DEBUG
#修改第三方类库的日志级别，避免看到太多不关心的日志
log4j.logger.org.apache.shiro=ERROR
log4j.logger.org.springframework=ERROR
log4j.logger.net.bull.javamelody=ERROR
log4j.logger.org.mybatis=ERROR
log4j.logger.org.apache.ibatis=ERROR
log4j.logger.com.alibaba.druid=ERROR
log4j.logger.net.sf.ehcache=ERROR
log4j.logger.org.quartz=ERROR
log4j.logger.org.apache.hadoop=ERROR
log4j.logger.org.apache.zookeeper=ERROR
log4j.logger.org.nutz=ERROR
log4j.logger.org.apache.http=ERROR
#控制台日志
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.Target=System.out
log4j.appender.Console.Threshold=DEBUG
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=[%p][%d{yyyy-MM-dd HH\:mm\:ss,SSS}][%l]%m%n
#每小时生成一个日志文件
log4j.appender.RollingFile=org.apache.log4j.DailyRollingFileAppender
log4j.appender.RollingFile.Threshold=ALL
log4j.appender.RollingFile.file=../logs/log
log4j.appender.RollingFile.DatePattern='_'yyyyMMdd_HH'.txt'
log4j.appender.RollingFile.layout=org.apache.log4j.PatternLayout
log4j.appender.RollingFile.layout.ConversionPattern=[%p][%d{yyyy-MM-dd HH\:mm\:ss,SSS}][%l]%m%n

qq_16dd5808 7楼•3017天前

@tonyyule 其实，不改直接用都行

来自炫酷的 NutzCN

Hamming(tonyyule)

8楼•3017天前

@qq_16dd5808 日志存在哪里的目录呢找不到呀

qq_16dd5808 9楼•3017天前

log4j.appender.RollingFile.file=../logs/log
在tomcat目录下。如果你是tomcat启动的话。但是这个目录里的文件是1小时生成一次

qq_16dd5808 10楼•3017天前

会生成logs目录，然后里面的文件就是日志文件了。
找不到你就全盘搜索logs目录

Hamming(tonyyule)

11楼•3017天前

@qq_16dd5808 log4j 最后我这样写你看看有问题吗

#日志级别有：OFF、FATAL、ERROR、WARN、INFO、DEBUG、TRACE、ALL
log4j.rootLogger=ALL,Console,RollingFile,debug, BLUEJAY
log4j.category.org.nutz=debug, BLUEJAY
log4j.additivity.org.nutz=false

#Appenders ...
log4j.appender.BLUEJAY=org.apache.log4j.ConsoleAppender
log4j.appender.BLUEJAY.layout=org.apache.log4j.PatternLayout
log4j.appender.BLUEJAY.layout.ConversionPattern=%d [%t] %-5p %c - %m%n

#控制台日志
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.Target=System.out
log4j.appender.Console.Threshold=DEBUG
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=[%p][%d{yyyy-MM-dd HH\:mm\:ss,SSS}][%l]%m%n

#每小时生成一个日志文件
log4j.appender.RollingFile=org.apache.log4j.DailyRollingFileAppender
log4j.appender.RollingFile.Threshold=ALL
log4j.appender.RollingFile.file=../logs/log
log4j.appender.RollingFile.DatePattern='_'yyyyMMdd_HH'.txt'
log4j.appender.RollingFile.layout=org.apache.log4j.PatternLayout
log4j.appender.RollingFile.layout.ConversionPattern=[%p][%d{yyyy-MM-dd HH\:mm\:ss,SSS}][%l]%m%n

qq_16dd5808 12楼•3017天前

看起来是没问题的。你运行试试看吧

wendal

13楼•3017天前

写绝对路径你就能找到了

qq_16dd5808 14楼•3017天前

@wendal 是个好办法

来自炫酷的 NutzCN

Hamming(tonyyule)

15楼•3017天前

@wendal 输出日志才这么点。。。为什么不是全部的Console @qq_16dd5808

root@NuoShang:/usr/local/tomcat/logs# cat log
[INFO][2016-09-18 15:17:06,141][nuoshang.bluejay.modules.controllers.HomeModule.index(HomeModule.java:30)]HomeModule#index
[INFO][2016-09-18 15:26:37,532][nuoshang.bluejay.modules.controllers.HomeModule.index(HomeModule.java:30)]HomeModule#index
[DEBUG][2016-09-18 15:26:37,532][nuoshang.bluejay.modules.controllers.UserModule.login(UserModule.java:68)]Input params - name: 
12312312312
[DEBUG][2016-09-18 15:26:37,535][nuoshang.bluejay.modules.controllers.UserModule.login(UserModule.java:69)]Input params - password: 
123123
root@NuoShang:/usr/local/tomcat/logs#

#日志级别有：OFF、FATAL、ERROR、WARN、INFO、DEBUG、TRACE、ALL
log4j.rootLogger=ALL,Console,debug,BLUEJAY,RollingFile
log4j.category.org.nutz=debug, BLUEJAY
log4j.additivity.org.nutz=false

#Appenders ...
log4j.appender.BLUEJAY=org.apache.log4j.ConsoleAppender
log4j.appender.BLUEJAY.file=../logs/BLUEJAY_log
log4j.appender.BLUEJAY.layout=org.apache.log4j.PatternLayout
log4j.appender.BLUEJAY.layout.ConversionPattern=%d [%t] %-5p %c - %m%n

#控制台日志
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.Target=System.out
log4j.appender.Console.Threshold=DEBUG
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=[%p][%d{yyyy-MM-dd HH\:mm\:ss,SSS}][%l]%m%n

#每小时生成一个日志文件
log4j.appender.RollingFile=org.apache.log4j.DailyRollingFileAppender
log4j.appender.RollingFile.Threshold=ALL
log4j.appender.RollingFile.file=../logs/log
log4j.appender.RollingFile.DatePattern='_'yyyyMMdd_HH'.txt'
log4j.appender.RollingFile.layout=org.apache.log4j.PatternLayout
log4j.appender.RollingFile.layout.ConversionPattern=[%p][%d{yyyy-MM-dd HH\:mm\:ss,SSS}][%l]%m%n

wendal

16楼•3017天前

你的配置文件好复杂.

log4j.rootLogger=debug,Console,RollingFile

log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=[%-5p] %d{HH:mm:ss.SSS} %l - %m%n

log4j.appender.RollingFile=org.apache.log4j.DailyRollingFileAppender
log4j.appender.RollingFile.file=/var/log/abc
log4j.appender.RollingFile.layout=org.apache.log4j.PatternLayout
log4j.appender.RollingFile.layout.ConversionPattern=[%-5p] %d{HH:mm:ss.SSS} %l - %m%n