log4j配置

1) properties:

log4j.rootLogger=INFO, stdout, R
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
# Pattern to output the caller's file name and line number.
#log4j.appender.stdout.layout.ConversionPattern=%5p [%t] (%F:%L) - %m%n
# Print the date in ISO 8601 format
log4j.appender.stdout.layout.ConversionPattern=%d [%t] %-5p %c - %m%n
log4j.appender.R=org.apache.log4j.RollingFileAppender
log4j.appender.R.File=example.log
log4j.appender.R.MaxFileSize=100KB
# Keep one backup file
log4j.appender.R.MaxBackupIndex=1
log4j.appender.R.layout=org.apache.log4j.PatternLayout
log4j.appender.R.layout.ConversionPattern=%p %t %c - %m%n
# Print only messages of level WARN or above in the package com.foo.
log4j.logger.com.foo=WARN 

2) 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="appendConsole" class="org.apache.log4j.ConsoleAppender">  
        <layout class="org.apache.log4j.PatternLayout">  
            <param name="ConversionPattern"     
                value="%8r [%t] %-5p %c - %m%n" />  
        </layout>
        <filter class="org.apache.log4j.varia.LevelRangeFilter">  
            <param name="levelMin" value="debug" />  
            <param name="levelMax" value="fatal" />  
            <param name="AcceptOnMatch" value="true" />  
        </filter>  
    </appender>  
  
    <appender name="appendFile" class="org.apache.log4j.RollingFileAppender">     
        <param name="File" value="./log/monitorinfo.log" />
        <param name="Append" value="true" />  
        <param name="MaxBackupIndex" value="10" />  
        <param name="MaxFileSize" value="10MB" /> 
        <layout class="org.apache.log4j.PatternLayout">  
            <param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss SSS} [%t] %-5p %c - %m%n" />  
        </layout>  
    </appender>
    
    <appender name="appendDB" class="org.apache.log4j.jdbc.JDBCAppender">     
         <param name="driver" value="com.mysql.jdbc.Driver" />  
         <param name="URL" value="jdbc:mysql://hsm_db:3306/hsm_db" />  
         <param name="user" value="root" />  
         <param name="password" value="hillstone_root" />  
         <param name="bufferSize" value="100" />  
         <layout class="org.apache.log4j.PatternLayout">  
             <param name="ConversionPattern"  
                 value="insert into t_HsmOperLog(logType,funId,objType,objID,operType,operResult,failureReason,operUserId, sessionId, recordTime, description) 
values('%X{logType}', '%X{funId}', '%X{objType}', '%X{objID}', '%X{operType}', '%X{operResult}', '%X{failureReason}', '%X{operUserId}', '%X{sessionId}', '%X{recordTime}', '%X{description}')"/>
        </layout> 
         
         <filter class="org.apache.log4j.varia.LevelRangeFilter">  
             <param name="levelMin" value="error" />  
            <param name="levelMax" value="fatal" />  
            <param name="AcceptOnMatch" value="true" /> 
         </filter>          
    </appender>
    
    <logger name="org.springframework.beans">
        <level value="warn" />
        <appender-ref ref="appendConsole"/>  
    </logger>
    
     <logger name="org.hibernate">
        <level value="warn" />
        <appender-ref ref="appendConsole"/>  
    </logger>
    
     <logger name="org.springframework.security">
        <level value="warn" />
        <appender-ref ref="appendConsole"/>  
    </logger>
  
    <root>  
        <priority value ="debug"/>  
        <appender-ref ref="appendConsole"/>  
        <appender-ref ref="appendFile"/>     
    </root>  
</log4j:configuration>  

3) load config in java class:

　　

DOMConfigurator.configure(this.getClass().getClassLoader().getSystemResource("conf/monitor/log4j.xml"));
PropertyConfigurator.configure(this.getClass().getClassLoader().getSystemResource("conf/log4j.properties"));