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tomcat8/9集成log4j2

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1、下载tomcat8.0.53 中的插件tomcat-juli.jar和tomcat-juli-adapters.jar两个jar把,经过测试,这两个jar适用于tomcat8.0、8.5、9.0
2、下载log4j-1.2-api-2.11.1.jar、log4j-api-2.11.1.jar、log4j-core-2.11.1.jar三个jar包,此处注意log4j2有bug,
笔者第一次使用2.8.2三个jar包,启动tomcat后写入文件的日志正常,但是控制台输出一直报错,错误内容如下:
2019-01-24 14:05:00,504 main ERROR Unable to inject fields into builder class for plugin type class org.apache.logging.log4j.core.appender.ConsoleAppender, element Console. java.nio.charset.UnsupportedCharsetException: cp65001 at java.nio.charset.Charset.forName(Charset.java:531) at org.apache.logging.log4j.util.PropertiesUtil.getCharsetProperty(PropertiesUtil.java:146) at org.apache.logging.log4j.util.PropertiesUtil.getCharsetProperty(PropertiesUtil.java:134) at org.apache.logging.log4j.core.appender.ConsoleAppender$Target.getCharset(ConsoleAppender.java:85) at org.apache.logging.log4j.core.appender.ConsoleAppender$Target$1.getDefaultCharset(ConsoleAppender.java:71) at org.apache.logging.log4j.core.appender.ConsoleAppender$Builder.build(ConsoleAppender.java:218) at org.apache.logging.log4j.core.appender.ConsoleAppender$Builder.build(ConsoleAppender.java:185) at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:122) at org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:952) at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:892) at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:884) at org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:508) at org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:232) at org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:244) at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:545) at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:617) at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:634) at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:229) at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:152) at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:45) at org.apache.logging.log4j.LogManager.getContext(LogManager.java:307) at org.apache.log4j.Logger$PrivateManager.getContext(Logger.java:59) at org.apache.log4j.Logger.getLogger(Logger.java:37) at org.apache.juli.logging.impl.Log4JLogger.getLogger(Log4JLogger.java:262) at org.apache.juli.logging.impl.Log4JLogger.<init>(Log4JLogger.java:108) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at org.apache.juli.logging.impl.LogFactoryImpl.createLogFromClass(LogFactoryImpl.java:1025) at org.apache.juli.logging.impl.LogFactoryImpl.discoverLogImplementation(LogFactoryImpl.java:844) at org.apache.juli.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:541) at org.apache.juli.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:292) at org.apache.juli.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:269) at org.apache.juli.logging.LogFactory.getLog(LogFactory.java:657) at org.apache.catalina.startup.Catalina.<clinit>(Catalina.java:824) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at org.apache.catalina.startup.Bootstrap.init(Bootstrap.java:264) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:461) 2019-01-24 14:05:00,520 main ERROR Unable to invoke factory method in class class org.apache.logging.log4j.core.appender.ConsoleAppender for element Console. java.lang.IllegalStateException: No factory method found for class org.apache.logging.log4j.core.appender.ConsoleAppender at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.findFactoryMethod(PluginBuilder.java:224) at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:130) at org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:952) at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:892) at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:884) at org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:508) at org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:232) at org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:244) at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:545) at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:617) at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:634) at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:229) at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:152) at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:45) at org.apache.logging.log4j.LogManager.getContext(LogManager.java:307) at org.apache.log4j.Logger$PrivateManager.getContext(Logger.java:59) at org.apache.log4j.Logger.getLogger(Logger.java:37) at org.apache.juli.logging.impl.Log4JLogger.getLogger(Log4JLogger.java:262) at org.apache.juli.logging.impl.Log4JLogger.<init>(Log4JLogger.java:108) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at org.apache.juli.logging.impl.LogFactoryImpl.createLogFromClass(LogFactoryImpl.java:1025) at org.apache.juli.logging.impl.LogFactoryImpl.discoverLogImplementation(LogFactoryImpl.java:844) at org.apache.juli.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:541) at org.apache.juli.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:292) at org.apache.juli.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:269) at org.apache.juli.logging.LogFactory.getLog(LogFactory.java:657) at org.apache.catalina.startup.Catalina.<clinit>(Catalina.java:824) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at org.apache.catalina.startup.Bootstrap.init(Bootstrap.java:264) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:461) 2019-01-24 14:05:00,566 main ERROR Null object returned for Console in Appenders. 2019-01-24 14:05:00,576 main ERROR Unable to locate appender "CONSOLE" for logger config "root"  经在百度查找发现是log4j2的bug,该bug在2.8.2以后修改,提示升级到最新版的log4j2,因此笔者升级到2.11.1后就正常了。
3、将这5个jar拷贝到tomcat/lib目录下
4、将tomcat-juli.jar覆盖到tomcat/bin目录下
5、删除tomcat/conf下logging.properties文件
6、在tomcat/lib目录下创建log4j.xml文件,内容如下:
<?xml version="1.0" encoding="utf-8"?> <Configuration status="INFO" monitorInterval="30"> <Properties> <Property name="CATALINA_BASE_LOGPATH">../logs</Property> </Properties> <Appenders> <Console name="CONSOLE" target="SYSTEM_OUT"> <patternLayout charset="utf-8" pattern="%d{yyyy-MM-dd HH:mm:ss,SSS}#%p#%t#%c#%C{1}#%F#%M#%L#%r#%m%n" /> </Console> <RollingFile name="CATALINA" fileName="${CATALINA_BASE_LOGPATH}/catalina.log" filePattern="${CATALINA_BASE_LOGPATH}/catalina.%date{yyyy-MM-dd}.%i.log" append="true" immediateFlush="true"> <patternLayout charset="utf-8" pattern="%d{yyyy-MM-dd HH:mm:ss,SSS}#%p#%t#%c#%C{1}#%F#%M#%L#%r#%m%n" /> <policies> <timeBasedTriggeringPolicy /> <SizeBasedTriggeringPolicy size="100 MB"/> </policies> <DefaultRolloverStrategy fileIndex="min" max="20"/> </RollingFile> <RollingFile name="LOCALHOST" fileName="${CATALINA_BASE_LOGPATH}/localhost.log" filePattern="${CATALINA_BASE_LOGPATH}/localhost.%date{yyyy-MM-dd}.%i.log" append="true" immediateFlush="true"> <patternLayout charset="utf-8" pattern="%d{yyyy-MM-dd HH:mm:ss,SSS}#%p#%t#%c#%C{1}#%F#%M#%L#%r#%m%n" /> <policies> <timeBasedTriggeringPolicy /> <SizeBasedTriggeringPolicy size="100 MB"/> </policies> <DefaultRolloverStrategy fileIndex="min" max="20"/> </RollingFile> <RollingFile name="MANAGER" fileName="${CATALINA_BASE_LOGPATH}/manager.log" filePattern="${CATALINA_BASE_LOGPATH}/manager.%date{yyyy-MM-dd}.%i.log" append="true" immediateFlush="true"> <patternLayout charset="utf-8" pattern="%d{yyyy-MM-dd HH:mm:ss,SSS}#%p#%t#%c#%C{1}#%F#%M#%L#%r#%m%n" /> <policies> <timeBasedTriggeringPolicy /> <SizeBasedTriggeringPolicy size="100 MB"/> </policies> <DefaultRolloverStrategy fileIndex="min" max="20"/> </RollingFile> <RollingFile name="HOST-MANAGER" fileName="${CATALINA_BASE_LOGPATH}/host-manager.log" filePattern="${CATALINA_BASE_LOGPATH}/host-manager.%date{yyyy-MM-dd}.%i.log" append="true" immediateFlush="true"> <patternLayout charset="utf-8" pattern="%d{yyyy-MM-dd HH:mm:ss,SSS}#%p#%t#%c#%C{1}#%F#%M#%L#%r#%m%n" /> <policies> <timeBasedTriggeringPolicy /> <SizeBasedTriggeringPolicy size="100 MB"/> </policies> <DefaultRolloverStrategy fileIndex="min" max="20"/> </RollingFile> </Appenders> <Loggers> <Logger name="org.apache.catalina.core.ContainerBase.[Catalina].[localhost]" level="INFO" additivity="false"> <appender-ref ref="LOCALHOST" /> </Logger> <Logger name="org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/manager]" level="INFO" additivity="false"> <appender-ref ref="MANAGER" /> </Logger> <Logger name="org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/host-manager]" level="INFO" additivity="false"> <appender-ref ref="HOST-MANAGER" /> </Logger> <Root level="INFO" additivity="false"> <AppenderRef ref="CONSOLE" level="INFO"/> <AppenderRef ref="CATALINA" level="INFO"/> </Root> </Loggers> </Configuration>  
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