禁止向catalina.out写入日志文件

catalina.out与按天的catalina.xxxx.log重复，屏蔽catalina.out的方法

修改tomcat/conf/logging.properties

1catalina.org.apache.juli.FileHandler.level = FINE

1catalina.org.apache.juli.FileHandler.directory = 日志目录

1catalina.org.apache.juli.FileHandler.prefix = catalina.

 

2localhost.org.apache.juli.FileHandler.level = FINE

2localhost.org.apache.juli.FileHandler.directory = 日志目录

2localhost.org.apache.juli.FileHandler.prefix = localhost.

3manager.org.apache.juli.FileHandler.level = FINE
3manager.org.apache.juli.FileHandler.directory = 日志目录
3manager.org.apache.juli.FileHandler.prefix = manager.

4host-manager.org.apache.juli.FileHandler.level = FINE
4host-manager.org.apache.juli.FileHandler.directory = 日志目录
4host-manager.org.apache.juli.FileHandler.prefix = host-manager.

#日志目录默认是：#${catalina.base}/logs

java.util.logging.ConsoleHandler.level = OFF #关掉
java.util.logging.ConsoleHandler.formatter = java.util.logging.SimpleFormatter

重启之后生效

版本：Centos7,Tomcat8

 

Tomcat使用Log4j输出catalina.out日志

Tomcat默认的日志是用java.util.logging，有几点不足，文件catalian.out不能像log4j一样按天生成，将越来越大。日志格式和项目中用log4j打出来的不一致，不利于解析。

从tomcat官网（https://tomcat.apache.org/tomcat-7.0-doc/logging.html）上找了下，修改一些配置、替换扩展包即可使用log4j输出catalian.out。

在$CATALINA_BASE/lib下创建log4j.properties文件

log4j.properties的内容如下：

log4j.rootLogger = INFO, CATALINA

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

# configure customed log to catalina.out
log4j.logger.com.xxxxx = WARN, CATALINA
log4j.logger.org.apache = WARN, CATALINA
log4j.logger.org.mybatis = WARN, CATALINA
log4j.logger.java.sql = WARN, CATALINA
log4j.logger.org.springframework = WARN, CATALINA

 

更新tomcat相关jar包

下载log4j-1.2.17.jar（http://www.apache.org/dist/logging/log4j/1.2.17/）

下载tomcat7的2个jar包：tomcat-juli.jar 和 tomcat-juli-adapters.jar（http://www.apache.org/dist/tomcat/tomcat-7/v7.0.69/bin/extras/ 最好和tomcat版本对应）

把log4j-1.2.17.jar和tomcat-juli-adapters.jar放到$CATALINA_HOME/lib下；用新下载的tomcat-juli.jar包替换掉$CATALINA_HOME/bin/tomcat-juli.jar包。

删除$CATALINA_BASE/conf/logging.properties。

重启tomcat

关于默认的catalina日志格式

如果只想修改tomcat默认的日志格式，替换掉默认的java.util.logging.SimpleFormatter即可。SimpleFormatter类里format格式为LoggingSupport.getSimpleFormat()，它的具体值是："%1$tb %1$td, %1$tY %1$tl:%1$tM:%1$tS %1$Tp %2$s%n%4$s: %5$s%6$s%n"，其中时间格式可能不是我们期望的，还有里面有个换行%n。比如想改为类似上面log4j的时间格式，可自己重写一个替换类(com.xxx.LogFormatter)，format设为"%1$tY-%1$tm-%1$td %1$tH:%1$tM:%1$tS.%1$tL %4$s %2$s %5$s%6$s%n"。修改$CATALINA_BASE/conf/logging.properties

java.util.logging.ConsoleHandler.formatter = java.util.logging.SimpleFormatter

改为如下：

java.util.logging.ConsoleHandler.formatter = com.xxx.LogFormatter
org.apache.juli.FileHandler.formatter = com.xxx.LogFormatter