log4j 配置文件 (XML/.properties)
xml:
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE log4j:configuration SYSTEM "log4j.dtd"> <log4j:configuration xmlns:log4j='http://jakarta.apache.org/log4j/'> <appender name="STDOUT" class="org.apache.log4j.ConsoleAppender"> <layout class="org.apache.log4j.PatternLayout"> <param name="ConversionPattern" value="%c %d{ISO8601} -- %p -- %m%n"/> </layout> </appender> <appender name="DEBUG" class="org.apache.log4j.RollingFileAppender"> <param name="File" value="logs\\app-debug.log"/> <param name="Append" value="true"/> <param name="MaxFileSize" value="500KB"/> <param name="MaxBackupIndex" value="2"/> <layout class="org.apache.log4j.PatternLayout"> <param name="ConversionPattern" value="%c %d{ISO8601} -- %p -- %m%n"/> </layout> <filter class="org.apache.log4j.varia.LevelRangeFilter"> <param name="LevelMin" value="DEBUG" /> <param name="LevelMax" value="DEBUG" /> </filter> </appender> <appender name="INFO" class="org.apache.log4j.RollingFileAppender"> <param name="File" value="logs\\app-info.log"/> <param name="Append" value="true"/> <param name="MaxFileSize" value="500KB"/> <param name="MaxBackupIndex" value="2"/> <layout class="org.apache.log4j.PatternLayout"> <param name="ConversionPattern" value="%c %d{ISO8601} -- %p -- %m%n"/> </layout> <filter class="org.apache.log4j.varia.LevelRangeFilter"> <param name="LevelMin" value="INFO" /> <param name="LevelMax" value="INFO" /> </filter> </appender> <appender name="WARN" class="org.apache.log4j.RollingFileAppender"> <param name="File" value="logs\\app-warn.log"/> <param name="Append" value="true"/> <param name="MaxFileSize" value="500KB"/> <param name="MaxBackupIndex" value="2"/> <layout class="org.apache.log4j.PatternLayout"> <param name="ConversionPattern" value="%c %d{ISO8601} -- %p -- %m%n"/> </layout> <filter class="org.apache.log4j.varia.LevelRangeFilter"> <param name="LevelMin" value="WARN" /> <param name="LevelMax" value="WARN" /> </filter> </appender> <appender name="ERROR" class="org.apache.log4j.RollingFileAppender"> <param name="File" value="logs\\app-error.log"/> <param name="Append" value="true"/> <param name="MaxFileSize" value="500KB"/> <param name="MaxBackupIndex" value="2"/> <layout class="org.apache.log4j.PatternLayout"> <param name="ConversionPattern" value="%c %d{ISO8601} -- %p -- %m%n"/> </layout> <filter class="org.apache.log4j.varia.LevelRangeFilter"> <param name="LevelMin" value="ERROR" /> <param name="LevelMax" value="ERROR" /> </filter> </appender> <root> <priority value="debug"/> <appender-ref ref="STDOUT"/> <appender-ref ref="DEBUG"/> <appender-ref ref="INFO"/> <appender-ref ref="WARN"/> <appender-ref ref="ERROR"/> </root> </log4j:configuration>
log4j.properties:
#日志输出级别为info,根日志器输出目的地为stdout,file
log4j.rootLogger=info, stdout, file
#stdout为控制台
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
#指定向stdout控制台输出的日志的格式 log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
#%m 输出代码中指定的消息
#%p 输出优先级,即DEBUG,INFO,WARN,ERROR,FATAL
#%r 输出自应用启动到输出该log信息耗费的毫秒数
#%c 输出所属的类目,通常就是所在类的全名
#%t 输出产生该日志事件的线程名
#%n 输出一个回车换行符,Windows平台为“rn”,Unix平台为“n”
#%d 输出日志时间点的日期或时间,默认格式为ISO8601,也可以在其后指定格式,比如:%d{yyy MMM dd HH:mm:ss,SSS},输出类似:2010年12月31日 20:10:29,921 #%l 输出日志事件的发生位置,包括类目名、发生的线程,以及在代码中的行数。
log4j.appender.stdout.layout.ConversionPattern=%-4r [%t] %-5p %c %x - %m%n
#log4j.appender.stdout.layout.ConversionPattern=[start]%d{yyyy/MM/dd/ HH:mm:ss}[DATE]%n%p[PRIORITY]%n%x[NDC]%n%t[THREAD] n%c[CATEGORY]%n%m[MESSAGE]%n%n
#file日志文件
log4j.appender.file=org.apache.log4j.FileAppender
log4j.appender.file.File=log/system.log
#定向file控制台输出的日志的格式
//log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d [%t] %-5p %c - %m%n
#log4j.appender.file.layout.ConversionPattern=[start]%d{yyyy/MM/dd/ HH:mm:ss}[DATE]%n%p[PRIORITY]%n%x[NDC]%n%t[THREAD] n%c[CATEGORY]%n%m[MESSAGE]%n%n
log4j.logger.org.apache.commons=ERROR
log4j.logger.com.opensymphony.oscache.base=INFO
#hibernate日志文件
#记录所有的信息
log4j.logger.org.hibernate=info
#记录JDBC参数
log4j.logger.org.hibernate.type=debug
log4j.logger.org.hibernate.hql.ast.AST=debug
#log4j.logger.org.hibernate=debug
### log HQL query parser activity
#log4j.logger.org.hibernate.hql.ast.AST=debug
#记录执行的SQL DML语句
log4j.logger.org.hibernate.SQL=debug
### log JDBC bind parameters
### log4j.logger.org.hibernate.type=info
#log4j.logger.org.hibernate.type=debug
#记录执行的SQL DDL语句
### log4j.logger.org.hibernate.tool.hbm2ddl=debug
### log HQL parse trees
#log4j.logger.org.hibernate.hql=debug
### 记录第二级缓存的活动
### #log4j.logger.org.hibernate.cache=debug
### 记录与事务有关的活动
#log4j.logger.org.hibernate.transaction=debug
###记录得到的JDBC资源
#log4j.logger.org.hibernate.jdbc=debug
### enable the following line if you want to track down connection ###
### leakages when using DriverManagerConnectionProvider
###
log4j.logger.org.hibernate.connection.DriverManagerConnectionProvider=trace
#for spring
#log4j.rootLogger=DEBUG,Spring
log4j.appender.Spring=org.apache.log4j.ConsoleAppender
#log4j.appender.Spring.Target=System.out
log4j.appender.Spring.layout=org.apache.log4j.PatternLayout
log4j.appender.Spring.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n
测试代码:
package com.nsrl.test;
import java.io.IOException;
import org.apache.log4j.Logger;
import org.apache.log4j.xml.DOMConfigurator;
public class testlog4j {
public static void main(String[] args) throws IOException, ClassNotFoundException {
DOMConfigurator.configure("src/log4j2.xml");
Logger log=Logger.getLogger("com.nsrl.dante");
log.info("配置成功");
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