log4j logback slf4j項目配置中的簡單總結

原創 孙定涛 2018-08-27 23:38
 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包讀取commons-logging.properties中指定的log,自動加載日誌配置
在commons-logging+log4j組合中commons-logging.properties指定的日誌爲:
org.apache.commons.logging.Log=org.apache.commons.logging.impl.Log4JLogger
 log4j指定具體日誌輸出配置
 如果未選用commons-logging,可以在啓動項目中,主動加載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的加載採用編碼加載
Java代碼 複製代碼 收藏代碼
  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:這種情況下是項目中有log4j輸出的日誌以及logback數據的日誌.老項目改造,log4j和logback共存的情況下.(當選用spring+slf4j+logback的時候,spring的日誌輸出是log4j的,這個時候採用這種配置.)
 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
 配置加載
Java代碼 複製代碼 收藏代碼
  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代碼 複製代碼 收藏代碼
  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.     <!-- 控制檯輸出-->   
  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. <!— 以下是過濾一些不需要輸出的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.     <!--文件輸出 按照文件大小滾動文件-->   
  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.     <!-- 錯誤輸出 過濾出錯誤日誌信息-->   
  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/">

	<!-- 控制檯輸出-->
	<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>

<!— 以下是過濾一些不需要輸出的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>

	<!--文件輸出 按照文件大小滾動文件-->
	<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>
	
	<!-- 錯誤輸出 過濾出錯誤日誌信息-->
	<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代碼 複製代碼 收藏代碼
  1. <?xml version="1.0" encoding="UTF-8" ?>   
  2. <!DOCTYPE configuration>   
  3.   
  4. <configuration>   
  5.     <jmxConfigurator />   
  6.        
  7.     <!-- 控制檯輸出日誌 -->   
  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.     <!-- 文件輸出日誌 (文件大小策略進行文件輸出，超過指定大小對文件備份)-->   
  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.   <!--這裏指定logger name 是爲jmx設置日誌級別做鋪墊 -->          
  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 />
    
    <!-- 控制檯輸出日誌 -->
    <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>
    
    <!-- 文件輸出日誌 (文件大小策略進行文件輸出，超過指定大小對文件備份)-->
    <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>

  <!--這裏指定logger name 是爲jmx設置日誌級別做鋪墊 -->	     
    <logger name="com.xxx.xxx">
        <level value="INFO" />
        <appender-ref ref="STDOUT" />
        <appender-ref ref="FILE" />
        <appender-ref ref="FILE-ERROR" />
    </logger>



</configuration>


七. 相關簡單說明
 Log4j
Log4j是Apache的一個開放源代碼項目，通過使用Log4j，我們可以控制日誌信息輸送的目的地是控制檯、文件、GUI組件、甚至是套接口服務 器、NT的事件記錄器、UNIX Syslog守護進程等；用戶也可以控制每一條日誌的輸出格式；通過定義每一條日誌信息的級別，用戶能夠更加細緻地控制日誌的生成過程。這些可以通過一個 配置文件來靈活地進行配置，而不需要修改程序代碼

 Slf4j
簡單日記門面(Facade)SLF4J是爲各種loging APIs提供一個簡單統一的接口，從而使得最終用戶能夠在部署的時候配置自己希望的loging APIs實現。 Logging API實現既可以選擇直接實現SLF4J接的loging APIs如： NLOG4J、SimpleLogger。也可以通過SLF4J提供的API實現來開發相應的適配器如Log4jLoggerAdapter、JDK14LoggerAdapter。

 Logback
Logback是由log4j創始人設計的又一個開源日記組件。logback當前分成三個模塊：logback-core,logback- classic和logback-access。logback-core是其它兩個模塊的基礎模塊。logback-classic是log4j的一個 改良版本。此外logback-classic完整實現SLF4J API使你可以很方便地更換成其它日記系統如log4j或JDK14 Logging。logback-access訪問模塊與Servlet容器集成提供通過Http來訪問日記的功能。
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