logback

logback集成

springboot 集成了logback日志系统，默认读取logbak配置文件，配置文件的名称默认：logback-spring.xml，如果想自定义配置文件的名称，需要在application.yml配置文件中作如下配置来指定logback的配置文件

logging:
	config: classpath:logback.xml

appender配置详解
appender 的种类

• ConsoleAppender：把日志添加到控制台
• FileAppender：把日志添加到文件
• RollingFileAppender：滚动记录文件，先将日志记录到指定文件，当符合某个条件时，将日志记录到其他文件。它是FileAppender的子类，是常用的一种

logback-spring.xml

<configuration>
    <property name="LOG_CONTEXT_NAME" value="chongba"/>
    
    <property name="LOG_HOME" value="logs/${LOG_CONTEXT_NAME}" />
    
    <contextName>${LOG_CONTEXT_NAME}contextName>
    
    <appender name="console" class="ch.qos.logback.core.ConsoleAppender">
        <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
            
            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{56}.%method:%L - %msg%npattern>
            <charset>utf-8charset>
        encoder>
        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
            <level>INFOlevel>
        filter>
    appender>

    
    <appender name="file.info" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <Prudent>truePrudent>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            
            <FileNamePattern>${LOG_HOME}/%d{yyyy-MM-dd}/info/info.%d{yyyy-MM-dd-HH}.%i.logFileNamePattern>
            
            <MaxHistory>30MaxHistory>
            <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                
                <maxFileSize>10MBmaxFileSize>
            timeBasedFileNamingAndTriggeringPolicy>
        rollingPolicy>
        <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
            
            <pattern> %d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{56}.%method:%L - %msg%npattern>
            <charset>utf-8charset>
        encoder>
        
        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>INFOlevel>
            <onMatch>ACCEPTonMatch>
            <onMismatch>DENYonMismatch>
        filter>
    appender>


    
    <appender name="file.error" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <Prudent>truePrudent>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            
            <FileNamePattern>${LOG_HOME}/%d{yyyy-MM-dd}/error/error.%d{yyyy-MM-dd}.%i.logFileNamePattern>
            
            <MaxHistory>30MaxHistory>
            <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                
                <maxFileSize>10MBmaxFileSize>
            timeBasedFileNamingAndTriggeringPolicy>
        rollingPolicy>
        <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
            
            <pattern> %d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{56}.%method:%L - %msg%npattern>
            <charset>utf-8charset>
        encoder>
        
        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>ERRORlevel>
            <onMatch>ACCEPTonMatch>
            <onMismatch>DENYonMismatch>
        filter>
    appender>

    
    <appender name="file.warn" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <Prudent>truePrudent>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <FileNamePattern>${LOG_HOME}/%d{yyyy-MM-dd}/warn/warn.%d{yyyy-MM-dd}.%i.logFileNamePattern>
            
            <MaxHistory>30MaxHistory>
            <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                
                <maxFileSize>10MBmaxFileSize>
            timeBasedFileNamingAndTriggeringPolicy>
        rollingPolicy>
        <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
            
            <pattern> %d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{56}.%method:%L - %msg%npattern>
            <charset>utf-8charset>
        encoder>
        
        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>WARNlevel>
            <onMatch>ACCEPTonMatch>
            <onMismatch>DENYonMismatch>
        filter>
    appender>

    <appender name="file.thread" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <Prudent>truePrudent>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <FileNamePattern>${LOG_HOME}/%d{yyyy-MM-dd}/thread/thread.%d{yyyy-MM-dd}.%i.logFileNamePattern>
            
            <MaxHistory>30MaxHistory>
            <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                
                <maxFileSize>100MBmaxFileSize>
            timeBasedFileNamingAndTriggeringPolicy>
        rollingPolicy>
        <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
            
            <pattern> %d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{56}.%method:%L - %msg%npattern>
            <charset>utf-8charset>
        encoder>
        
        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
            <level>INFOlevel>
        filter>
    appender>


    
    <root level="debug">
        <appender-ref ref="console" />
        <appender-ref ref="file.error" />
        <appender-ref ref="file.info" />
        <appender-ref ref="file.warn" />
    root>

    <logger name="thread" additivity="false">
        <appender-ref ref="file.thread"/>
        <appender-ref ref="console" />
    logger>

    
    <logger name="com.chongba.schedule.service.VisiableThreadPool" additivity="false">
        <appender-ref ref="file.thread"/>
    logger>

configuration>

线程池日志监控

@Slf4j
public class VisiableThreadPool extends ThreadPoolTaskExecutor{

    /**
     * 收集线程池运行参数信息的方法
     * @param info
     */
    private void logs(String info){
        /**
         * - getThreadNamePrefix：线程池内线程名称前缀，方便定位
         - getTaskCount：线程池已经执行的和未执行的任务总数；
         - getCompletedTaskCount：线程池已完成的任务数量，该值小于等于taskCount；
         - getActiveCount：当前线程池中正在执行任务的线程数量。
         - queueSize：缓冲队列大小。
         */
        String prefix = this.getThreadNamePrefix();
        long taskCount = this.getThreadPoolExecutor().getTaskCount();
        long completedTaskCount = this.getThreadPoolExecutor().getCompletedTaskCount();
        int activeCount = this.getThreadPoolExecutor().getActiveCount();
        int queueSize = this.getThreadPoolExecutor().getQueue().size();
        log.info("prefix={},info={},taskCount={},completedCount={},activeCount={},queueSize={}",prefix,
                info,taskCount,completedTaskCount,activeCount,queueSize);
    }


    @Override
    public void execute(Runnable task) {
        super.execute(task);
        logs("do execute");
    }

    @Override
    public <T> Future<T> submit(Callable<T> task) {
        Future<T> future = super.submit(task);
        logs("do submit");
        return future;
    }
}

常用logback配置

<configuration>
    
    <property name="LOG_HOME" value="D:/logs"/>

    
    <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            
            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%npattern>
            <charset>utf8charset>
        encoder>
    appender>

    
    <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            
            <fileNamePattern>${LOG_HOME}/leadnews.%d{yyyy-MM-dd}.logfileNamePattern>
        rollingPolicy>
        <encoder>
            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%npattern>
        encoder>
    appender>

    
    <appender name="ASYNC" class="ch.qos.logback.classic.AsyncAppender">
        
        <discardingThreshold>0discardingThreshold>
        
        <queueSize>512queueSize>
        
        <appender-ref ref="FILE"/>
    appender>


    <logger name="org.apache.ibatis.cache.decorators.LoggingCache" level="DEBUG" additivity="false">
        <appender-ref ref="CONSOLE"/>
    logger>
    <logger name="com.example.logback" level="warn" />
    <root level="info">
        
        <appender-ref ref="FILE"/>
        <appender-ref ref="CONSOLE"/>
    root>
configuration>