1.前言
Logback是Log4j的升级版,作者为同一个人,作者不想再去改Log4j,所以写了Logbak
使用日志框架的最佳实践是选择一款日志门面+一款日志实现,这里选择Slf4j+Logback, Slf4j作者也是Logbak的作者
SpringBoot从1.4版本开始,内置的日志框架就是Logback.
2.使用流程
application.yml中配置
logging: config: classpath:logback.xml
logbackxml
<?xml version="1.0" encoding="UTF-8"?> <!-- 分级别异步文件日志输出配置 --> <configuration> <!-- 日志级别 --> <property name="logLevel" value="INFO"></property> <!-- 日志地址 --> <property name="logPath" value="./logs"></property> <!-- 最大保存时间 --> <property name="maxHistory" value="30"/> <!-- 异步缓冲队列的深度,该值会影响性能.默认值为256 --> <property name="queueSize" value="512"></property> <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"> <encoder> <pattern>%d{yyyy-MM-dd HH:mm:ss} %-4relative [%thread] %-5level %logger{35} - %msg %n</pattern> </encoder> </appender>` <appender name="FILE_DEBUG" class="ch.qos.logback.core.rolling.RollingFileAppender"> <filter class="ch.qos.logback.classic.filter.LevelFilter"> <level>DEBUG</level> <onMatch>ACCEPT</onMatch> <onMismatch>DENY</onMismatch> <!--拦截级别 DEBUG ->INFO -> WARN ->ERROR--> </filter> <file>${logPath}/cms_debug.log</file> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <fileNamePattern>${logPath}/cms_debug.log.%d{yyyy-MM-dd}.zip </fileNamePattern> <maxHistory>${maxHistory}</maxHistory> </rollingPolicy> <encoder> <pattern>%d{yyyy-MM-dd HH:mm:ss} %-4relative [%thread] %-5level %logger{35} - %msg%n</pattern> </encoder> </appender> <appender name="FILE_INFO" class="ch.qos.logback.core.rolling.RollingFileAppender"> <filter class="ch.qos.logback.classic.filter.LevelFilter"> <level>INFO</level> <onMatch>ACCEPT</onMatch> <onMismatch>DENY</onMismatch> </filter> <file>${logPath}/cms_info.log</file> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <fileNamePattern>${logPath}/cms_info.log.%d{yyyy-MM-dd}.zip </fileNamePattern> <maxHistory>${maxHistory}</maxHistory> </rollingPolicy> <encoder> <pattern>%d{yyyy-MM-dd HH:mm:ss} %-4relative [%thread] %-5level %logger{35} - %msg%n</pattern> </encoder> </appender> <appender name="FILE_WARN" class="ch.qos.logback.core.rolling.RollingFileAppender"> <filter class="ch.qos.logback.classic.filter.LevelFilter"> <level>WARN</level> <onMatch>ACCEPT</onMatch> <onMismatch>DENY</onMismatch> </filter> <file>${logPath}/cms_warn.log</file> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <fileNamePattern>${logPath}/cms_warn.log.%d{yyyy-MM-dd}.zip </fileNamePattern> <maxHistory>${maxHistory}</maxHistory> </rollingPolicy> <encoder> <pattern>%d{yyyy-MM-dd HH:mm:ss} %-4relative [%thread] %-5level %logger{35} - %msg%n</pattern> </encoder> </appender> <appender name="FILE_ERROR" class="ch.qos.logback.core.rolling.RollingFileAppender"> <filter class="ch.qos.logback.classic.filter.LevelFilter"> <level>ERROR</level> <onMatch>ACCEPT</onMatch> <onMismatch>DENY</onMismatch> </filter> <file>${logPath}/cms_error.log</file> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <fileNamePattern>${logPath}/cms_error.log.%d{yyyy-MM-dd}.zip </fileNamePattern> <maxHistory>${maxHistory}</maxHistory> </rollingPolicy> <encoder> <pattern>%d{yyyy-MM-dd HH:mm:ss} %-4relative [%thread] %-5level %logger{35} - %msg%n </pattern> </encoder> </appender> <!--分包输出日志,分包配置--> <appender name="requestparamAppender" <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <fileNamePattern>${logPath}/requestparam/%d{yyyy-MM-dd}.log</fileNamePattern> </rollingPolicy> <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"> <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} Line:%line ----------------> %msg%n </pattern> </encoder> <!--日志文件最大的大小--> <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy"> <MaxFileSize>10MB</MaxFileSize> </triggeringPolicy> </appender> <appender name="controllerAppender" class="ch.qos.logback.core.rolling.RollingFileAppender"> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <fileNamePattern>${logPath}/controller/%d{yyyy-MM-dd}.log</fileNamePattern> </rollingPolicy> <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"> <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} Line:%line ----------------> %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> <appender name="serviceAppender" class="ch.qos.logback.core.rolling.RollingFileAppender"> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <fileNamePattern>${logPath}/service/%d{yyyy-MM-dd}.log</fileNamePattern> </rollingPolicy> <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"> <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} Line:%line ----------------> %msg%n </pattern> </encoder> <!--日志文件最大的大小--> <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy"> <MaxFileSize>10MB</MaxFileSize> </triggeringPolicy> </appender> <appender name="daoAppender" class="ch.qos.logback.core.rolling.RollingFileAppender"> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <fileNamePattern>${logPath}/dao/%d{yyyy-MM-dd}.log</fileNamePattern> </rollingPolicy> <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"> <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} Line:%line ----------------> %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> <appender name="dbAppender" class="ch.qos.logback.core.rolling.RollingFileAppender"> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <fileNamePattern>${logPath}/db/%d{yyyy-MM-dd}.log</fileNamePattern> </rollingPolicy> <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"> <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} Line:%line ----------------> %msg%n </pattern> </encoder> <!--日志文件最大的大小--> <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy"> <MaxFileSize>10MB</MaxFileSize> </triggeringPolicy> </appender> <appender name="bussinessAppender" class="ch.qos.logback.core.rolling.RollingFileAppender"> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <fileNamePattern>${logPath}/bussiness/%d{yyyy-MM-dd}.log</fileNamePattern> </rollingPolicy> <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"> <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} Line:%line ----------------> %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> <appender name="platformAppender" class="ch.qos.logback.core.rolling.RollingFileAppender"> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <fileNamePattern>${logPath}/platform/%d{yyyy-MM-dd}.log</fileNamePattern> </rollingPolicy> <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"> <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} Line:%line ----------------> %msg%n </pattern> </encoder> <!--日志文件最大的大小--> <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy"> <MaxFileSize>10MB</MaxFileSize> </triggeringPolicy> </appender> <appender name="exceptionAppender" class="ch.qos.logback.core.rolling.RollingFileAppender"> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <fileNamePattern>${logPath}/exception/%d{yyyy-MM-dd}.log</fileNamePattern> </rollingPolicy> <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"> <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} Line:%line ----------------> %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> <appender name="ASYNC_LOG_REQUESTPARAM" class="ch.qos.logback.classic.AsyncAppender"> <!-- 不丢失日志.默认的,如果队列的80%已满,则会丢弃TRACT、DEBUG、INFO级别的日志 --> <discardingThreshold>0</discardingThreshold> <!-- 更改默认的队列的深度,该值会影响性能.默认值为256 --> <queueSize>${queueSize}</queueSize> <appender-ref ref="requestparamAppender"/> </appender> <appender name="ASYNC_LOG_CONTROLLER" class="ch.qos.logback.classic.AsyncAppender"> <!-- 不丢失日志.默认的,如果队列的80%已满,则会丢弃TRACT、DEBUG、INFO级别的日志 --> <discardingThreshold>0</discardingThreshold> <!-- 更改默认的队列的深度,该值会影响性能.默认值为256 --> <queueSize>${queueSize}</queueSize> <appender-ref ref="controllerAppender"/> </appender> <appender name="ASYNC_LOG_SERVICE" class="ch.qos.logback.classic.AsyncAppender"> <!-- 不丢失日志.默认的,如果队列的80%已满,则会丢弃TRACT、DEBUG、INFO级别的日志 --> <discardingThreshold>0</discardingThreshold> <!-- 更改默认的队列的深度,该值会影响性能.默认值为256 --> <queueSize>${queueSize}</queueSize> <appender-ref ref="serviceAppender"/> </appender> <appender name="ASYNC_LOG_DAO" class="ch.qos.logback.classic.AsyncAppender"> <!-- 不丢失日志.默认的,如果队列的80%已满,则会丢弃TRACT、DEBUG、INFO级别的日志 --> <discardingThreshold>0</discardingThreshold> <!-- 更改默认的队列的深度,该值会影响性能.默认值为256 --> <queueSize>${queueSize}</queueSize> <appender-ref ref="daoAppender"/> </appender> <appender name="ASYNC_LOG_BUSSINESS" class="ch.qos.logback.classic.AsyncAppender"> <!-- 不丢失日志.默认的,如果队列的80%已满,则会丢弃TRACT、DEBUG、INFO级别的日志 --> <discardingThreshold>0</discardingThreshold> <!-- 更改默认的队列的深度,该值会影响性能.默认值为256 --> <queueSize>${queueSize}</queueSize> <appender-ref ref="bussinessAppender"/> </appender> <appender name="ASYNC_LOG_DB" class="ch.qos.logback.classic.AsyncAppender"> <!-- 不丢失日志.默认的,如果队列的80%已满,则会丢弃TRACT、DEBUG、INFO级别的日志 --> <discardingThreshold>0</discardingThreshold> <!-- 更改默认的队列的深度,该值会影响性能.默认值为256 --> <queueSize>${queueSize}</queueSize> <appender-ref ref="dbAppender"/> </appender> <appender name="ASYNC_LOG_DEBUG" class="ch.qos.logback.classic.AsyncAppender"> <!-- 不丢失日志.默认的,如果队列的80%已满,则会丢弃TRACT、DEBUG、INFO级别的日志 --> <discardingThreshold>0</discardingThreshold> <!-- 更改默认的队列的深度,该值会影响性能.默认值为256 --> <queueSize>${queueSize}</queueSize> <appender-ref ref="FILE_DEBUG"/> </appender> <appender name="ASYNC_LOG_INFO" class="ch.qos.logback.classic.AsyncAppender"> <!-- 不丢失日志.默认的,如果队列的80%已满,则会丢弃TRACT、DEBUG、INFO级别的日志 --> <discardingThreshold>0</discardingThreshold> <!-- 更改默认的队列的深度,该值会影响性能.默认值为256 --> <queueSize>${queueSize}</queueSize> <appender-ref ref="FILE_INFO"/> </appender> <appender name="ASYNC_LOG_WARN" class="ch.qos.logback.classic.AsyncAppender"> <!-- 不丢失日志.默认的,如果队列的80%已满,则会丢弃TRACT、DEBUG、INFO级别的日志 --> <discardingThreshold>0</discardingThreshold> <!-- 更改默认的队列的深度,该值会影响性能.默认值为256 --> <queueSize>${queueSize}</queueSize> <appender-ref ref="FILE_WARN"/> </appender> <appender name="ASYNC_LOG_ERROR" class="ch.qos.logback.classic.AsyncAppender"> <!-- 不丢失日志.默认的,如果队列的80%已满,则会丢弃TRACT、DEBUG、INFO级别的日志 --> <discardingThreshold>0</discardingThreshold> <!-- 更改默认的队列的深度,该值会影响性能.默认值为256 --> <queueSize>${queueSize}</queueSize> <appender-ref ref="FILE_ERROR"/> </appender> <root level="${logLevel}"> <!-- appender referenced after it is defined --> <appender-ref ref="STDOUT"/> <appender-ref ref="ASYNC_LOG_INFO"/> </root> <logger name="requestparam" level="DEBUG"> <appender-ref ref="ASYNC_LOG_REQUESTPARAM"/> </logger> <logger name="controller" level="DEBUG"> <appender-ref ref="ASYNC_LOG_CONTROLLER"/> </logger> <logger name="service" level="DEBUG"> <appender-ref ref="ASYNC_LOG_SERVICE"/> </logger> <logger name="dao" level="DEBUG"> <appender-ref ref="ASYNC_LOG_DAO"/> </logger> <logger name="bussiness" level="DEBUG"> <appender-ref ref="ASYNC_LOG_BUSSINESS"/> </logger> <logger name="XX.XX.dao" level="TRACE"> <appender-ref ref="ASYNC_LOG_DB"/> </logger> </configuration>
使用
public static Logger getRequestParamLogger() { return LoggerFactory.getLogger("requestparam"); } private static final Logger logger = LogUtils.getRequestParamLogger(); logger.info("日志...");