项目集成 log4j logback log4j2
1 项目集成log4j
1.1 加入pom依赖
<dependency><groupId>log4j</groupId><artifactId>log4j</artifactId><version>1.2.17</version></dependency><dependency><groupId>org.slf4j</groupId><artifactId>slf4j-api</artifactId><version>1.7.25</version></dependency><dependency><groupId>org.slf4j</groupId><artifactId>slf4j-log4j12</artifactId><version>1.7.25</version></dependency>
1.2 加入log4j.properties
log4j.rootLogger=debug,stdout,debug,info,warn,error### 输出信息到控制抬log4j.appender.stdout=org.apache.log4j.ConsoleAppenderlog4j.appender.stdout.Target=System.outlog4j.appender.stdout.layout=org.apache.log4j.PatternLayoutlog4j.appender.stdout.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n### 输出DEBUG 级别以上的日志到 log/debug.loglog4j.appender.debug=org.apache.log4j.DailyRollingFileAppenderlog4j.appender.debug.File=log/integrate-log4j-debug.loglog4j.appender.debug.Append=truelog4j.appender.debug.Threshold=DEBUGlog4j.appender.debug.layout=org.apache.log4j.PatternLayoutlog4j.appender.debug.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n### 输出DEBUG 级别以上的日志到 log/debug.loglog4j.appender.info=org.apache.log4j.DailyRollingFileAppenderlog4j.appender.info.File=log/integrate-log4j-info.loglog4j.appender.info.Append=truelog4j.appender.info.Threshold=INFOlog4j.appender.info.layout=org.apache.log4j.PatternLayoutlog4j.appender.info.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n### 输出DEBUG 级别以上的日志到 log/debug.loglog4j.appender.warn=org.apache.log4j.DailyRollingFileAppenderlog4j.appender.warn.File=log/integrate-log4j-warn.loglog4j.appender.warn.Append=truelog4j.appender.warn.Threshold=WARNlog4j.appender.warn.layout=org.apache.log4j.PatternLayoutlog4j.appender.warn.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n### 输出ERROR 级别以上的日志到 log/error.loglog4j.appender.error=org.apache.log4j.DailyRollingFileAppenderlog4j.appender.error.File=log/integrate-log4j-error.loglog4j.appender.error.Append=truelog4j.appender.error.Threshold=ERRORlog4j.appender.error.layout=org.apache.log4j.PatternLayoutlog4j.appender.error.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n
1.3 在代码中使用
package com.zjw; import org.slf4j.Logger; import org.slf4j.LoggerFactory; public class Log4jTest { private static Logger logger = LoggerFactory.getLogger(Log4jTest.class); public static void main(String[] args) { logger.info("Log4j test."); } }
2 项目集成logback
2.1 加入pom依赖
<dependency><groupId>org.slf4j</groupId><artifactId>slf4j-api</artifactId><version>1.7.25</version></dependency><dependency><groupId>ch.qos.logback</groupId><artifactId>logback-core</artifactId><version>1.2.3</version></dependency><dependency><groupId>ch.qos.logback</groupId><artifactId>logback-access</artifactId><version>1.2.3</version></dependency><dependency><groupId>ch.qos.logback</groupId><artifactId>logback-classic</artifactId><version>1.2.3</version></dependency>
2.2 加入logback.xml
<?xml version="1.0" encoding="UTF-8" ?><configuration><!--定义日志文件的存储地址 勿在 LogBack 的配置中使用相对路径--><property name="LOG_HOME" value="./log"/><!-- 日志前缀名称 --><property name="LOG_NAME" value="eureka-server"/><!-- 控制台输出 --><appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"><encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"><!--格式化输出： %d表示日期， %thread表示线程名， %-5level：级别从左显示5个字符宽度， %logger{50}输出日志的类 50代表包名加类名的总长度限制， %msg：日志消息，%n是换行符--><pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n</pattern></encoder></appender><!-- 按照每天生成日志文件 --><appender name="ROLLING_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender"><rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"><!--日志文件输出的文件名--><FileNamePattern>${LOG_HOME}/${LOG_NAME}-%d{yyyy-MM-dd}.log</FileNamePattern><!--日志文件保留天数--><MaxHistory>30</MaxHistory></rollingPolicy><encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"><!--格式化输出： %d表示日期， %thread表示线程名， %-5level：级别从左显示5个字符宽度， %logger{50}输出日志的类 50代表包名加类名的总长度限制， %msg：日志消息，%n是换行符--><pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n</pattern></encoder><!--日志文件最大的大小--><triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy"><MaxFileSize>10MB</MaxFileSize></triggeringPolicy></appender><!--库日志输出级别 --><root level="INFO"><appender-ref ref="STDOUT"/><appender-ref ref="ROLLING_FILE"/></root></configuration>
2.3 在代码中使用
package com.zjw; import org.slf4j.Logger; import org.slf4j.LoggerFactory; public class LogBackTest { private static Logger logger = LoggerFactory.getLogger(LogBackTest.class); public static void main(String[] args) { logger.info("Logback Test."); } }
3 项目集成log4j2
3.1 加入pom依赖
<!-- slf4j核心包--><dependency><groupId>org.slf4j</groupId><artifactId>slf4j-api</artifactId><version>1.7.25</version></dependency><dependency><groupId>org.slf4j</groupId><artifactId>jcl-over-slf4j</artifactId><version>1.7.25</version><scope>runtime</scope></dependency><!--核心log4j2jar包--><dependency><groupId>org.apache.logging.log4j</groupId><artifactId>log4j-api</artifactId><version>2.4.1</version></dependency><dependency><groupId>org.apache.logging.log4j</groupId><artifactId>log4j-core</artifactId><version>2.4.1</version></dependency><!--用于与slf4j保持桥接--><dependency><groupId>org.apache.logging.log4j</groupId><artifactId>log4j-slf4j-impl</artifactId><version>2.4.1</version></dependency><!--web工程需要包含log4j-web，非web工程不需要--><dependency><groupId>org.apache.logging.log4j</groupId><artifactId>log4j-web</artifactId><version>2.4.1</version><scope>runtime</scope></dependency><!--需要使用log4j2的AsyncLogger需要包含disruptor--><dependency><groupId>com.lmax</groupId><artifactId>disruptor</artifactId><version>3.2.0</version></dependency>
3.2 加入log4j2.xml
<?xml version="1.0" encoding="UTF-8"?><Configuration status="off" monitorInterval="1800"><properties><property name="LOG_HOME">./logs</property><property name="ERROR_LOG_FILE_NAME">error</property></properties><Appenders><Console name="Console" target="SYSTEM_OUT"><PatternLayout pattern="%d %-5p (%F:%L) - %m%n"/></Console><RollingRandomAccessFile name="ErrorLog" fileName="${LOG_HOME}/${ERROR_LOG_FILE_NAME}.log" filePattern="${LOG_HOME}/${ERROR_LOG_FILE_NAME}.log.%d{yyyy-MM-dd}.gz"><PatternLayout pattern="%d %-5p (%F:%L) - %m%n"/><Policies><TimeBasedTriggeringPolicy/><SizeBasedTriggeringPolicy size="100 MB"/></Policies><DefaultRolloverStrategy max="20"/></RollingRandomAccessFile></Appenders><Loggers><!-- 3rdparty Loggers --><logger name="org.springframework.core" level="info"></logger><logger name="org.springframework.beans" level="info"></logger><logger name="org.springframework.context" level="info"></logger><logger name="org.springframework.web" level="info"></logger><logger name="com.hafiz.www.controller" level="error" includeLocation="true" additivity="false"><appender-ref ref="ErrorLog"/><appender-ref ref="Console"/></logger><root level="info" includeLocation="true"><appender-ref ref="Console"/></root></Loggers></Configuration>
3.3 在代码中使用
package com.zjw; import org.slf4j.Logger; import org.slf4j.LoggerFactory; public class Log4j2Test { private static Logger logger = LoggerFactory.getLogger(Log4j2Test.class); public static void main(String[] args) { logger.info("Log4j2 Test."); } }
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