log4j logback slf4j项目配置中的简单总结

转自：http://www.iteye.com/topic/345924

一. Log4j+commons-logging 
 JAR包 
commons-logging-1.1.jar 
log4j-1.2.15.jar 
 配置文件 
commons-logging.properties 
log4j.xml 
 commons-logging.jar包读取commons-logging.properties中指定的log,自动加载日志配置 
在commons-logging+log4j组合中commons-logging.properties指定的日志为: 
org.apache.commons.logging.Log=org.apache.commons.logging.impl.Log4JLogger 
 log4j指定具体日志输出配置 
 如果未选用commons-logging,可以在启动项目中,主动加载log4j的配置文件 
二. Logback+slf4j 
 JAR包 
slf4j-api-1.5.2.jar 
logback-classic-0.9.9.jar 
logback-core-0.9.9.jar 
 配置文件 
Logback.xml 
 logback的加载采用编码加载 

 String logbackCfg = "/config/logback.xml";
 URL logURL = new ClassPathResource(logbackCfg).getURL();
 ILoggerFactory loggerFactory = LoggerFactory.getILoggerFactory();
 LoggerContext loggerContext = (LoggerContext) loggerFactory;
 loggerContext.shutdownAndReset();
 JoranConfigurator configurator = new JoranConfigurator();
 configurator.setContext(loggerContext);
 configurator.doConfigure(logURL);

三. Slf4j+log4j 
 JAR包 
slf4j-api-1.5.2.jar 
slf4j-log4j12-1.5.2.jar 
log4j-1.2.15.jar 
 配置文件 
Logback.xml 
四. Slf4j+logback+logback 
注:这种情况下是项目中有log4j输出的日志以及logback数据的日志.老项目改造,log4j和logback共存的情况下.(当选用spring+slf4j+logback的时候,spring的日志输出是log4j的,这个时候采用这种配置.) 
 JARbao 
log4j-over-slf4j-1.5.2.jar 
logback-classic-0.9.9.jar 
logback-core-0.9.9.jar 
slf4j-api-1.5.2.jar 
 配置文件 
Logback.xml 
 配置加载 

 String logbackCfg = "/config/logback.xml";
 URL logURL = new ClassPathResource(logbackCfg).getURL();
 ILoggerFactory loggerFactory = LoggerFactory.getILoggerFactory();
 LoggerContext loggerContext = (LoggerContext) loggerFactory;
 loggerContext.shutdownAndReset();
 JoranConfigurator configurator = new JoranConfigurator();
 configurator.setContext(loggerContext);
 configurator.doConfigure(logURL);

五. Log4j配置文件示例 

 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
 <log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">

     <!-- 控制台输出-->
     <appender name="CONSOLE" class="org.apache.log4j.ConsoleAppender">
         <param name="Target" value="System.out" />
         <param name="Threshold" value="INFO" />
         <layout class="org.apache.log4j.PatternLayout">
             <param name="ConversionPattern"
                 value="%d{yyyy-MM-dd HH:mm:ss sss}[%-p][%-c][line:%-L] \r\n  %m%n" />
         </layout>

 <!— 以下是过滤一些不需要输出的log信息 -->
         <filter class="org.apache.log4j.varia.StringMatchFilter">
             <param name="StringToMatch" value="new a seq no spend" />
             <param name="AcceptOnMatch" value="false" />
         </filter>
         <filter class="org.apache.log4j.varia.StringMatchFilter">
             <param name="StringToMatch" value="new hi[type=" />
             <param name="AcceptOnMatch" value="false" />
         </filter>
         <filter class="org.apache.log4j.varia.StringMatchFilter">
             <param name="StringToMatch" value="FileTransfer.execCommand()" />
             <param name="AcceptOnMatch" value="false" />
         </filter>
     </appender>

     <!--文件输出 按照文件大小滚动文件-->
     <appender name="xxxx_file" class="org.apache.log4j.RollingFileAppender">
         <param name="Append" value="true" />
         <param name="Threshold" value="INFO" />
         <param name="File" value="xxxx.log" />
         <param name="MaxFileSize" value="100MB" />
         <param name="MaxBackupIndex" value="15" />
         <layout class="org.apache.log4j.PatternLayout">
             <param name="ConversionPattern"
                 value="%d{yyyy-MM-dd HH:mm:ss sss}[%-p][%-c][line:%-L] \r\n  %m%n" />
         </layout>
         <filter class="org.apache.log4j.varia.StringMatchFilter">
             <param name="StringToMatch" value="new a seq no spend" />
             <param name="AcceptOnMatch" value="false" />
         </filter>
         <filter class="org.apache.log4j.varia.StringMatchFilter">
             <param name="StringToMatch" value="new hi[type=" />
             <param name="AcceptOnMatch" value="false" />
         </filter>
         <filter class="org.apache.log4j.varia.StringMatchFilter">
             <param name="StringToMatch" value="FileTransfer.execCommand()" />
             <param name="AcceptOnMatch" value="false" />
         </filter>
     </appender>

     <!-- 错误输出 过滤出错误日志信息-->
     <appender name="xxxx_error" class="org.apache.log4j.RollingFileAppender">
         <param name="Append" value="true" />
         <param name="Threshold" value="ERROR" />
         <param name="File" value="xxxx-error.log" />
         <param name="MaxFileSize" value="100MB" />
         <param name="MaxBackupIndex" value="4" />
         <layout class="org.apache.log4j.PatternLayout">
             <param name="ConversionPattern"
                 value="%d{yyyy-MM-dd HH:mm:ss sss}[%-p][%-c][line:%-L] \r\n  %m%n" />
         </layout>
     </appender>

   <!-- 根loggr -->
     <root>
         <appender-ref ref="CONSOLE" />
         <appender-ref ref="xxxx_file" />
         <appender-ref ref="xxxx_file_error" />
     </root>
 </log4j:configuration>

六. Logback配置文件示例 

 <?xml version="1.0" encoding="UTF-8" ?>
 <!DOCTYPE configuration>

 <configuration>
     <jmxConfigurator />

     <!-- 控制台输出日志 -->
     <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
         <layout class="ch.qos.logback.classic.PatternLayout">
             <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
         </layout>
     </appender>

     <!-- 文件输出日志 (文件大小策略进行文件输出，超过指定大小对文件备份)-->
     <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
         <File>xxxx.log</File>
         <rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
             <FileNamePattern>xxxx.log.%i.bak</FileNamePattern>
             <MinIndex>1</MinIndex>
             <MaxIndex>12</MaxIndex>
         </rollingPolicy>

         <triggeringPolicy
             class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
             <MaxFileSize>100MB</MaxFileSize>
         </triggeringPolicy>
         <layout class="ch.qos.logback.classic.PatternLayout">
             <Pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</Pattern>
         </layout>
     </appender>

     <appender name="FILE-ERROR" class="ch.qos.logback.core.rolling.RollingFileAppender">
          <filter class="ch.qos.logback.classic.filter.LevelFilter">
             <level>ERROR</level>
             <OnMismatch>DENY</OnMismatch>
             <OnMatch>ACCEPT</OnMatch>
         </filter>

         <File>xxxx-err.log</File>
         <rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
             <FileNamePattern>xxxx-err.log.%i.bak</FileNamePattern>
             <MinIndex>1</MinIndex>
             <MaxIndex>3</MaxIndex>
         </rollingPolicy>
         <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
             <MaxFileSize>100MB</MaxFileSize>
         </triggeringPolicy>
         <layout class="ch.qos.logback.classic.PatternLayout">
             <Pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</Pattern>
         </layout>
     </appender>

   <!--这里指定logger name 是为jmx设置日志级别做铺垫 -->
     <logger name="com.xxx.xxx">
         <level value="INFO" />
         <appender-ref ref="STDOUT" />
         <appender-ref ref="FILE" />
         <appender-ref ref="FILE-ERROR" />
     </logger>



 </configuration>

七. 相关简单说明 
 Log4j 
Log4j是Apache的一个开放源代码项目，通过使用Log4j，我们可以控制日志信息输送的目的地是控制台、文件、GUI组件、甚至是套接口服务 器、NT的事件记录器、UNIX Syslog守护进程等；用户也可以控制每一条日志的输出格式；通过定义每一条日志信息的级别，用户能够更加细致地控制日志的生成过程。这些可以通过一个 配置文件来灵活地进行配置，而不需要修改程序代码 

 Slf4j 
简单日记门面(Facade)SLF4J是为各种loging APIs提供一个简单统一的接口，从而使得最终用户能够在部署的时候配置自己希望的loging APIs实现。 Logging API实现既可以选择直接实现SLF4J接的loging APIs如： NLOG4J、SimpleLogger。也可以通过SLF4J提供的API实现来开发相应的适配器如Log4jLoggerAdapter、JDK14LoggerAdapter。 

 Logback 
Logback是由log4j创始人设计的又一个开源日记组件。logback当前分成三个模块：logback-core,logback- classic和logback-access。logback-core是其它两个模块的基础模块。logback-classic是log4j的一个 改良版本。此外logback-classic完整实现SLF4J API使你可以很方便地更换成其它日记系统如log4j或JDK14 Logging。logback-access访问模块与Servlet容器集成提供通过Http来访问日记的功能。