log4j logback slf4j项目配置中的简单总结

 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

Java代码  

1. String logbackCfg = "/config/logback.xml";   
2. URL logURL = new ClassPathResource(logbackCfg).getURL();   
3. ILoggerFactory loggerFactory = LoggerFactory.getILoggerFactory();   
4. LoggerContext loggerContext = (LoggerContext) loggerFactory;   
5. loggerContext.shutdownAndReset();   
6. JoranConfigurator configurator = new JoranConfigurator();   
7. configurator.setContext(loggerContext);   
8. configurator.doConfigure(logURL);  

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

Java代码  

1. String logbackCfg = "/config/logback.xml";   
2. URL logURL = new ClassPathResource(logbackCfg).getURL();   
3. ILoggerFactory loggerFactory = LoggerFactory.getILoggerFactory();   
4. LoggerContext loggerContext = (LoggerContext) loggerFactory;   
5. loggerContext.shutdownAndReset();   
6. JoranConfigurator configurator = new JoranConfigurator();   
7. configurator.setContext(loggerContext);   
8. configurator.doConfigure(logURL);  

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

Java代码  

1. <?xml version="1.0" encoding="UTF-8"?>   
2. <!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">   
3. <log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">   
4.   
5.     <!-- 控制台输出-->   
6.     <appender name="CONSOLE" class="org.apache.log4j.ConsoleAppender">   
7.         <param name="Target" value="System.out" />   
8.         <param name="Threshold" value="INFO" />   
9.         <layout class="org.apache.log4j.PatternLayout">   
10.             <param name="ConversionPattern"  
11.                 value="%d{yyyy-MM-dd HH:mm:ss sss}[%-p][%-c][line:%-L] \r\n  %m%n" />   
12.         </layout>   
13.   
14. <!— 以下是过滤一些不需要输出的log信息 -->   
15.         <filter class="org.apache.log4j.varia.StringMatchFilter">   
16.             <param name="StringToMatch" value="new a seq no spend" />   
17.             <param name="AcceptOnMatch" value="false" />   
18.         </filter>   
19.         <filter class="org.apache.log4j.varia.StringMatchFilter">   
20.             <param name="StringToMatch" value="new hi[type=" />   
21.             <param name="AcceptOnMatch" value="false" />   
22.         </filter>   
23.         <filter class="org.apache.log4j.varia.StringMatchFilter">   
24.             <param name="StringToMatch" value="FileTransfer.execCommand()" />   
25.             <param name="AcceptOnMatch" value="false" />   
26.         </filter>   
27.     </appender>   
28.   
29.     <!--文件输出 按照文件大小滚动文件-->   
30.     <appender name="xxxx_file" class="org.apache.log4j.RollingFileAppender">   
31.         <param name="Append" value="true" />   
32.         <param name="Threshold" value="INFO" />   
33.         <param name="File" value="xxxx.log" />   
34.         <param name="MaxFileSize" value="100MB" />   
35.         <param name="MaxBackupIndex" value="15" />   
36.         <layout class="org.apache.log4j.PatternLayout">   
37.             <param name="ConversionPattern"  
38.                 value="%d{yyyy-MM-dd HH:mm:ss sss}[%-p][%-c][line:%-L] \r\n  %m%n" />   
39.         </layout>   
40.         <filter class="org.apache.log4j.varia.StringMatchFilter">   
41.             <param name="StringToMatch" value="new a seq no spend" />   
42.             <param name="AcceptOnMatch" value="false" />   
43.         </filter>   
44.         <filter class="org.apache.log4j.varia.StringMatchFilter">   
45.             <param name="StringToMatch" value="new hi[type=" />   
46.             <param name="AcceptOnMatch" value="false" />   
47.         </filter>   
48.         <filter class="org.apache.log4j.varia.StringMatchFilter">   
49.             <param name="StringToMatch" value="FileTransfer.execCommand()" />   
50.             <param name="AcceptOnMatch" value="false" />   
51.         </filter>   
52.     </appender>   
53.        
54.     <!-- 错误输出 过滤出错误日志信息-->   
55.     <appender name="xxxx_error" class="org.apache.log4j.RollingFileAppender">   
56.         <param name="Append" value="true" />   
57.         <param name="Threshold" value="ERROR" />   
58.         <param name="File" value="xxxx-error.log" />   
59.         <param name="MaxFileSize" value="100MB" />   
60.         <param name="MaxBackupIndex" value="4" />   
61.         <layout class="org.apache.log4j.PatternLayout">   
62.             <param name="ConversionPattern"  
63.                 value="%d{yyyy-MM-dd HH:mm:ss sss}[%-p][%-c][line:%-L] \r\n  %m%n" />   
64.         </layout>   
65.     </appender>   
66.       
67.   <!-- 根loggr -->   
68.     <root>   
69.         <appender-ref ref="CONSOLE" />   
70.         <appender-ref ref="xxxx_file" />   
71.         <appender-ref ref="xxxx_file_error" />   
72.     </root>   
73. </log4j:configuration>  

<?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

Java代码  

1. <?xml version="1.0" encoding="UTF-8" ?>   
2. <!DOCTYPE configuration>   
3.   
4. <configuration>   
5.     <jmxConfigurator />   
6.        
7.     <!-- 控制台输出日志 -->   
8.     <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">   
9.         <layout class="ch.qos.logback.classic.PatternLayout">   
10.             <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>   
11.         </layout>   
12.     </appender>   
13.        
14.     <!-- 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)-->   
15.     <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">   
16.         <File>xxxx.log</File>   
17.         <rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">   
18.             <FileNamePattern>xxxx.log.%i.bak</FileNamePattern>   
19.             <MinIndex>1</MinIndex>   
20.             <MaxIndex>12</MaxIndex>   
21.         </rollingPolicy>   
22.   
23.         <triggeringPolicy   
24.             class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">   
25.             <MaxFileSize>100MB</MaxFileSize>   
26.         </triggeringPolicy>   
27.         <layout class="ch.qos.logback.classic.PatternLayout">   
28.             <Pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</Pattern>   
29.         </layout>   
30.     </appender>   
31.      
32.     <appender name="FILE-ERROR" class="ch.qos.logback.core.rolling.RollingFileAppender">   
33.          <filter class="ch.qos.logback.classic.filter.LevelFilter">   
34.             <level>ERROR</level>   
35.             <OnMismatch>DENY</OnMismatch>   
36.             <OnMatch>ACCEPT</OnMatch>   
37.         </filter>   
38.            
39.         <File>xxxx-err.log</File>   
40.         <rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">   
41.             <FileNamePattern>xxxx-err.log.%i.bak</FileNamePattern>   
42.             <MinIndex>1</MinIndex>   
43.             <MaxIndex>3</MaxIndex>   
44.         </rollingPolicy>   
45.         <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">   
46.             <MaxFileSize>100MB</MaxFileSize>   
47.         </triggeringPolicy>   
48.         <layout class="ch.qos.logback.classic.PatternLayout">   
49.             <Pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</Pattern>   
50.         </layout>   
51.     </appender>   
52.   
53.   <!--这里指定logger name 是为jmx设置日志级别做铺垫 -->          
54.     <logger name="com.xxx.xxx">   
55.         <level value="INFO" />   
56.         <appender-ref ref="STDOUT" />   
57.         <appender-ref ref="FILE" />   
58.         <appender-ref ref="FILE-ERROR" />   
59.     </logger>   
60.   
61.   
62.   
63. </configuration>  

<?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。