Log4j配置实例（log4j.xml）

一个完整的xml配置文件（propertities文件功能不全，不能使用过滤器，并且个人认为xml格式比较清晰，易读）。

 

附带测试程序。

import java.net.URL;

import org.apache.log4j.xml.DOMConfigurator;

/**
 * 单实例 读取log4j配置文件，初始化log4j
 *
 */
public class Log4jXMLConfig
{
    private static Log4jXMLConfig instance;

    public static synchronized Log4jXMLConfig initia()
    {
        if (instance == null)
        {
            return new Log4jXMLConfig();
        }
        return instance;
    }

    private Log4jXMLConfig()
    {
        final URL url = Log4jXMLConfig.class.getResource("log4j.xml");
        DOMConfigurator.configure(url);
    }
}

import java.net.URL;import org.apache.log4j.xml.DOMConfigurator;/** * 单实例 读取log4j配置文件，初始化log4j * */public class Log4jXMLConfig{ private static Log4jXMLConfig instance; public static synchronized Log4jXMLConfig initia() { if (instance == null) { return new Log4jXMLConfig(); } return instance; } private Log4jXMLConfig() { final URL url = Log4jXMLConfig.class.getResource("log4j.xml"); DOMConfigurator.configure(url); }} 

 

 

 

xml version="1.0" encoding="UTF-8" ?>
>

<log4j:configuration>

 <appender name="CONSOLE" class="org.apache.log4j.ConsoleAppender">
  <layout class="org.apache.log4j.PatternLayout">
   <param name="ConversionPattern"
    value="%d - %c -%-4r [%t] %-5p %x - %m%n" />
  layout>


  <filter class="org.apache.log4j.varia.LevelRangeFilter">
   <param name="LevelMax" value="ERROR"/>
   <param name="LevelMin" value="TRACE"/>
  filter>
 appender>

 <appender name="FILE" class="org.apache.log4j.FileAppender">
  <param name="File" value="C:/log4j1.log"/>
  <layout class="org.apache.log4j.PatternLayout">
   <param name="ConversionPattern"
    value="%d - %c -%-4r [%t] %-5p %x - %m%n" />
  layout>
 appender>

 <appender name="DATABASE" class="org.apache.log4j.jdbc.JDBCAppender">
  <param name="URL" value="jdbc:oracle:thin:@192.168.0.59:1521:oanet"/>
  <param name="driver" value="oracle.jdbc.driver.OracleDriver"/>
  <param name="user" value="hdczoa"/>
  <param name="password" value="system"/>
  <layout class="org.apache.log4j.PatternLayout">
   <param name="ConversionPattern"
    value="INSERT INTO hdczoa.LOG4J(stamp,thread, info_level,class,message) VALUES ('%d', '%t', '%p', '%c', %m)" />
  layout>
 appender>


 <appender name="MAIL"
  class="org.apache.log4j.net.SMTPAppender">
  <param name="threshold" value="debug" />

  <param name="BufferSize" value="512" />
  <param name="From" value="[e-mail]" />
  <param name="SMTPHost" value="smtp.163.com" />
  <param name="Subject" value="juyee-log4jMessage" />
  <param name="To" value="[e-mail]" />
  <param name="SMTPUsername" value="test" />
  <param name="SMTPPassword" value="test" />
  <layout class="org.apache.log4j.PatternLayout">
   <param name="ConversionPattern"
    value="%-d{yyyy-MM-dd HH:mm:ss.SSS} [%p]-[%c] %m%n" />
  layout>
 appender>

 <appender name="ASYNC" class="org.apache.log4j.AsyncAppender">
  <param name="BufferSize" value="256" />
  <appender-ref ref="DATABASE" />
 appender>


 <logger name="com.litt2.log4j" additivity="false">
        <level value="WARN" />
        <appender-ref ref="CONSOLE" />
    logger>


 <category name="com.litt3">
    <level value="DEBUG" />
       <appender-ref ref="CONSOLE" />
       <appender-ref ref="MAIL" />
  category>

 <root>
  <priority value="debug" />
  <appender-ref ref="CONSOLE" />
  <appender-ref ref="FILE" />
 root>


log4j:configuration>

 另外一个配置文件：

xml version="1.0" encoding="UTF-8" ?>
>
<log4j:configuration xmlns:log4j="">




















    <appender name="filelog_appender"
        class="org.apache.log4j.RollingFileAppender">

        <param name="File" value="log/testlog4jxml_all.log" />

        <param name="Append" value="true" />

        <param name="MaxFileSize" value="1MB" />

        <param name="MaxBackupIndex" value="10000" />

        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss} %-5p (%c:%L)- %m%n" />
        layout>
    appender>


    <appender name="filelog_daily" class="org.apache.log4j.DailyRollingFileAppender">
        <param name="File" value="log/daily.log" />
        <param name="DatePattern" value="'daily.'yyyy-MM-dd'.log'" />
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="[%d{yyyy-MM-dd HH:mm:ss\} %-5p] [%t] (%c:%L) - %m%n" />
        layout>
    appender>


    <appender name="console" class="org.apache.log4j.ConsoleAppender">
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern"
                value="%d{yyyy-MM-dd HH:mm:ss} %-5p: %m%n" />

        layout>
    appender>

<appender name="EMAIL_QQ" class="org.apache.log4j.net.SMTPAppender">
        <param name="Threshold" value="INFO"/>
        <param name="BufferSize" value="128" />
        <param name="SMTPHost" value="smtp.qq.com" />
        <param name="SMTPUsername" value="cjjvictory" />
        <param name="SMTPPassword" value="***" />
        <param name="From" value="[e-mail]" />
        <param name="To" value="[e-mail]" />
        <param name="Subject" value="测试邮件发送" />
        <param name="LocationInfo" value="true" />
        <param name="SMTPDebug" value="true" />
        <layout class="org.cjj.log4j.extend.PatternLayout_zh">
            <param name="ConversionPattern" value="[%d{ISO8601}] %-5p %c %m%n"/>
        layout>
    appender>


    <appender name="ASYNC_test" class="org.apache.log4j.AsyncAppender">
     <param name="BufferSize" value="10"/>
     <appender-ref ref="EMAIL_QQ"/>
   appender>


    <category name="org.cjj" additivity="false">

        <level value="ERROR" />
        <appender-ref ref="filelog_daily" />
        <appender-ref ref="daily_appender" />
        <appender-ref ref="console" />
        <appender-ref ref="ASYNC_test" />
 category>

log4j:configuration>

Web配置log4j,需求增加以下内容到WEB-INF/web.xml
　　
        webAppRootKey
        smilecargo.root
   
   
        log4jConfigLocation
        classpath:log4j.xml
   
   
        log4jRefreshInterval
        60000
   
　　
        org.springframework.web.util.Log4jConfigListener
   

${smilecargo.root}是web工程相对路径