logback日志配置（控制台日志 输出日志 错误日志）

logback日志配置（控制台日志、输出日志、错误日志）

一、logback.xml相关配置：

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE xml><configuration><!-- 控制台输出 --><appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"><encoder><pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern></encoder></appender><!-- 按照每天生成输出日志文件 --><appender name="FILEOUT" class="ch.qos.logback.core.rolling.RollingFileAppender"><encoder><!--格式化输出：%d表示日期，%thread表示线程，%-5level：级别从左显示五个字符宽度，%logger{36}：logger是class的全名,后面的数字代表限制最长的字符，%msg：日志消息，%n换行符--><pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern></encoder><file>logs/output.log</file><!--滚动策略按照时间滚动--><rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy"><!-- rollover daily --><fileNamePattern>logs/output-%d{yyyy-MM-dd}.%i.log</fileNamePattern><!-- each file should be at most 10MB, keep 60 days worth of history, but at most 2GB --><!--单个文件大小--><maxFileSize>10MB</maxFileSize><!--日志文件保留天数--><maxHistory>60</maxHistory><!--用来指定日志文件的上限大小，到了这个值就会删除旧日志--><totalSizeCap>2GB</totalSizeCap></rollingPolicy></appender><!-- 按照每天生成错误日志文件 --><appender name="FILEERR" class="ch.qos.logback.core.rolling.RollingFileAppender"><filter class="ch.qos.logback.classic.filter.ThresholdFilter"><level>ERROR</level></filter><encoder><pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern></encoder><file>logs/error.log</file><rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy"><!-- rollover daily --><fileNamePattern>logs/error-%d{yyyy-MM-dd}.%i.log</fileNamePattern><!-- each file should be at most 10MB, keep 60 days worth of history, but at most 2GB --><maxFileSize>10MB</maxFileSize><maxHistory>60</maxHistory><totalSizeCap>2GB</totalSizeCap></rollingPolicy></appender><root level="INFO"><appender-ref ref="STDOUT" /><appender-ref ref="FILEOUT" /><appender-ref ref="FILEERR" /></root>

二、导入相关jar包

<dependency><groupId>org.slf4j</groupId><artifactId>slf4j-api</artifactId></dependency><dependency><groupId>ch.qos.logback</groupId><artifactId>logback-core</artifactId></dependency><dependency><groupId>ch.qos.logback</groupId><artifactId>logback-classic</artifactId></dependency>

配置完成运行项目，日志就能输出到对应的日志文件目录啦，快来试试吧！！！