logback配置和使用
一、依赖包
<properties> <logback.version>1.2.3</logback.version> </properties> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-core</artifactId> <version>${logback.version}</version> </dependency> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-classic</artifactId> <version>${logback.version}</version> </dependency> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-access</artifactId> <version>${logback.version}</version> </dependency>
二、logback.xml
<?xml version="1.0" encoding="UTF-8"?> <!-- scan="true" 当此属性设置为true时，配置文件如果发生改变，将会被重新加载，默认值为true。 --> <!-- scanPeriod="30 seconds" 设置每30秒自动扫描,若没有指定具体单位则以milliseconds为标准(单位:milliseconds, seconds, minutes or hours) --> <!-- debug="false"当此属性设置为true时，将打印出logback内部日志信息，实时查看logback运行状态。默认值为false。--> <configuration scan="true" scanPeriod="30 seconds"> <!-- 载入外部配置文件 --> <property resource="logback.properties" /> <!-- LOG_LEVEL_PATTERN 日志级别 --> <property name="CONSOLE_LOG_PATTERN" value="%d{${LOG_DATEFORMAT_PATTERN:-yyyy-MM-dd HH:mm:ss.SSS}} ${LOG_LEVEL_PATTERN:-%5p} ${PID:- } --- [%t] %c : %m%n"/> <property name="FILE_LOG_PATTERN" value="%d{${LOG_DATEFORMAT_PATTERN:-yyyy-MM-dd HH:mm:ss.SSS}} ${LOG_LEVEL_PATTERN:-%5p} ${PID:- } --- [%t] %c : %m%n"/> <!-- 上下文名称 --> <contextName>${APP_NAME}</contextName> <!-- 日志的存放目录--> <property name="DEBUG_LOG_FILE_NAME_PATTERN" value="${log.dir}/${app.name}-debug.%d{yyyy-MM-dd}.%i.log"/> <property name="INFO_LOG_FILE_NAME_PATTERN" value="${log.dir}/${app.name}-info.%d{yyyy-MM-dd}.%i.log"/> <property name="WARN_LOG_FILE_NAME_PATTERN" value="${log.dir}/${app.name}-warn.%d{yyyy-MM-dd}.%i.log"/> <property name="ERROR_LOG_FILE_NAME_PATTERN" value="${log.dir}/${app.name}-error.%d{yyyy-MM-dd}.%i.log"/> <!--输出到控制台--> <appender name="console" class="ch.qos.logback.core.ConsoleAppender"> <encoder> <pattern>${CONSOLE_LOG_PATTERN}</pattern>
<!-- 控制台也要使用UTF-8，不要使用GBK，否则会中文乱码 -->
<charset>UTF-8</charset> </encoder> </appender> <!--输出到DEBUG文件--> <appender name="debug_file" class="ch.qos.logback.core.rolling.RollingFileAppender"> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <fileNamePattern>${DEBUG_LOG_FILE_NAME_PATTERN}</fileNamePattern> <!-- 日志保留天数 --> <maxHistory>${debug.file.max.history}</maxHistory> <!-- 日志文件上限大小，达到指定大小后删除旧的日志文件 --> <totalSizeCap>${debug.file.total.size.cap}</totalSizeCap> <!-- 每个日志文件的最大值 --> <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP"> <maxFileSize>${debug.file.max.file.size}</maxFileSize> </timeBasedFileNamingAndTriggeringPolicy> </rollingPolicy> <encoder> <pattern>${FILE_LOG_PATTERN}</pattern> </encoder> <!-- 此日志文件只记录debug级别的 --> <filter class="ch.qos.logback.classic.filter.LevelFilter"> <level>debug</level> <onMatch>ACCEPT</onMatch> <onMismatch>DENY</onMismatch> </filter> </appender> <!--输出到INFO文件--> <appender name="info_file" class="ch.qos.logback.core.rolling.RollingFileAppender"> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <fileNamePattern>${INFO_LOG_FILE_NAME_PATTERN}</fileNamePattern> <!-- 日志保留天数 --> <maxHistory>${info.file.max.history}</maxHistory> <!-- 日志文件上限大小，达到指定大小后删除旧的日志文件 --> <totalSizeCap>${info.file.total.size.cap}</totalSizeCap> <!-- 每个日志文件的最大值 --> <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP"> <maxFileSize>${info.file.max.file.size}</maxFileSize> </timeBasedFileNamingAndTriggeringPolicy> </rollingPolicy> <encoder> <pattern>${FILE_LOG_PATTERN}</pattern> </encoder> <!-- 此日志文件只记录info级别的 --> <filter class="ch.qos.logback.classic.filter.LevelFilter"> <level>info</level> <onMatch>ACCEPT</onMatch> <onMismatch>DENY</onMismatch> </filter> </appender> <!--输出到WARN文件--> <appender name="warn_file" class="ch.qos.logback.core.rolling.RollingFileAppender"> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <fileNamePattern>${WARN_LOG_FILE_NAME_PATTERN}</fileNamePattern> <!-- 日志保留天数 --> <maxHistory>${warn.file.max.history}</maxHistory> <!-- 日志文件上限大小，达到指定大小后删除旧的日志文件 --> <totalSizeCap>${warn.file.total.size.cap}</totalSizeCap> <!-- 每个日志文件的最大值 --> <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP"> <maxFileSize>${warn.file.max.file.size}</maxFileSize> </timeBasedFileNamingAndTriggeringPolicy> </rollingPolicy> <encoder> <pattern>${FILE_LOG_PATTERN}</pattern> </encoder> <!-- 此日志文件只记录warn级别的 --> <filter class="ch.qos.logback.classic.filter.LevelFilter"> <level>warn</level> <onMatch>ACCEPT</onMatch> <onMismatch>DENY</onMismatch> </filter> </appender> <!--输出到ERROR文件--> <appender name="error_file" class="ch.qos.logback.core.rolling.RollingFileAppender"> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <fileNamePattern>${ERROR_LOG_FILE_NAME_PATTERN}</fileNamePattern> <!-- 日志保留天数 --> <maxHistory>${error.file.max.history}</maxHistory> <!-- 日志文件上限大小，达到指定大小后删除旧的日志文件 --> <totalSizeCap>${error.file.total.size.cap}</totalSizeCap> <!-- 每个日志文件的最大值 --> <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP"> <maxFileSize>${error.file.max.file.size}</maxFileSize> </timeBasedFileNamingAndTriggeringPolicy> </rollingPolicy> <encoder> <pattern>${FILE_LOG_PATTERN}</pattern> </encoder> <!-- 此日志文件只记录error级别的 --> <filter class="ch.qos.logback.classic.filter.LevelFilter"> <level>error</level> <onMatch>ACCEPT</onMatch> <onMismatch>DENY</onMismatch> </filter> </appender> <!-- #####根据不同的环境设置不同的日志输出级别##### --> <!-- 未指定环境时使用，否则将其注释 --> <logger name="com.sourceplan" level="debug"/> <root level="debug"> <appender-ref ref="console"/> <appender-ref ref="debug_file"/> <appender-ref ref="info_file"/> <appender-ref ref="warn_file"/> <appender-ref ref="error_file"/> </root> <!-- 指定环境后使用，否则注释 springProfile 所有配置 --> <!-- <springProfile name="default,local"> <logger name="com.sourceplan" level="debug"/> <root level="debug"> <appender-ref ref="console"/> </root> </springProfile> <springProfile name="dev,test"> <logger name="com.sourceplan" level="debug"/> <root level="debug"> <appender-ref ref="console"/> <appender-ref ref="debug_file"/> <appender-ref ref="info_file"/> </root> </springProfile> <springProfile name="pre,prod"> <logger name="com.sourceplan" level="info"/> <root level="info"> <appender-ref ref="info_file"/> <appender-ref ref="warn_file"/> <appender-ref ref="error_file"/> </root> </springProfile> --> </configuration>
三、logback.properties
# 应用名称 app.name=logback-test # 日志存放地址 log.dir=logs # 日志存放时间配置(单位:天) debug.file.max.history=30 info.file.max.history=30 warn.file.max.history=30 error.file.max.history=30 # 日志文件存放上限制，超过指定值清除历史日志文件 debug.file.total.size.cap=1GB info.file.total.size.cap=10GB warn.file.total.size.cap=1GB error.file.total.size.cap=1GB # 单文件最大值 debug.file.max.file.size=100MB info.file.max.file.size=100MB warn.file.max.file.size=100MB error.file.max.file.size=100MB
四、使用方式
import org.slf4j.Logger; import org.slf4j.LoggerFactory; public class App { private static final Logger logger = LoggerFactory.getLogger(App.class); public static void main( String[] args ) { logger.debug( "logback {}", "debug" ); logger.info( "logback {}", "info" ); logger.warn( "logback {}", "warn" ); logger.error( "logback {}", "error" ); } }
参考：https://blog.csdn.net/liaoguolingxian/article/details/79297188
