一、logback的介绍
Logback是由log4j创始人设计的另一个开源日志组件,官方网站： http://logback.qos.ch。
常用处理java的日志组件：slf4j，log4j，logback，common-logging等。
Logback基于Log4j基础上大量改良，不能单独使用。推荐配合日志框架SLF4J来使用。它当前分为下面三个模块：
- logback-core：其它两个模块的基础模块
- logback-classic：它是log4j的一个改良版本，同时它完整实现了slf4j API使你可以很方便地更换成其它日志系统如log4j或JDK14 Logging
- logback-access：访问模块与Servlet容器集成提供通过Http来访问日志的功能。
二、logback取代log4j的理由
- 更快的实现：Logback的内核重写了，在一些关键执行路径上性能提升10倍以上。而且logback不仅性能提升了，初始化内存加载也更小了。
- 非常充分的测试：Logback经过了几年，数不清小时的测试。Logback的测试完全不同级别的。
- Logback-classic非常自然实现了SLF4j：Logback-classic实现了SLF4j。在使用SLF4j中，你都感觉不到logback-classic。而且因为logback-classic非常自然地实现了slf4j ， 所 以切换到log4j或者其他，非常容易，只需要提供成另一个jar包就OK，根本不需要去动那些通过SLF4JAPI实现的代码。
- 非常充分的文档 官方网站有两百多页的文档。
- 自动重新加载配置文件，当配置文件修改了，Logback-classic能自动重新加载配置文件。扫描过程快且安全，它并不需要另外创建一个扫描线程。这个技术充分保证了应用程序能跑得很欢在JEE环境里面。
- Lilith是log事件的观察者，和log4j的chainsaw类似。而lilith还能处理大数量的log数据 。
- 谨慎的模式和非常友好的恢复，在谨慎模式下，多个FileAppender实例跑在多个JVM下，能 够安全地写道同一个日志文件。RollingFileAppender会有些限制。Logback的FileAppender和它的子类包括 RollingFileAppender能够非常友好地从I/O异常中恢复。
- 配置文件可以处理不同的情况，开发人员经常需要判断不同的Logback配置文件在不同的环境下（开发，测试，生产）。而这些配置文件仅仅只有一些很小的不同，可以通过,和来实现，这样一个配置文件就可以适应多个环境。
- Filters（过滤器）有些时候，需要诊断一个问题，需要打出日志。在log4j，只有降低日志级别，不过这样会打出大量的日志，会影响应用性能。在Logback，你可以继续 保持那个日志级别而除掉某种特殊情况，如alice这个用户登录，她的日志将打在DEBUG级别而其他用户可以继续打在WARN级别。要实现这个功能只需加4行XML配置。可以参考MDCFIlter 。
- SiftingAppender（一个非常多功能的Appender）：它可以用来分割日志文件根据任何一个给定的运行参数。如，SiftingAppender能够区别日志事件跟进用户的Session，然后每个用户会有一个日志文件。
- 自动压缩已经打出来的log：RollingFileAppender在产生新文件的时候，会自动压缩已经打出来的日志文件。压缩是个异步过程，所以甚至对于大的日志文件，在压缩过程中应用不会受任何影响。
- 堆栈树带有包版本：Logback在打出堆栈树日志时，会带上包的数据。
- 自动去除旧的日志文件：通过设置TimeBasedRollingPolicy或者SizeAndTimeBasedFNATP的maxHistory属性，你可以控制已经产生日志文件的最大数量。如果设置maxHistory 12，那那些log文件超过12个月的都会被自动移除。
三、logback的配置介绍
1、Logger、appender及layout
Logger作为日志的记录器，把它关联到应用的对应的context上后，主要用于存放日志对象，也可以定义日志类型、级别。
Appender主要用于指定日志输出的目的地，目的地可以是控制台、文件、远程套接字服务器、 MySQL、PostreSQL、 Oracle和其他数据库、 JMS和远程UNIX Syslog守护进程等。
Layout 负责把事件转换成字符串，格式化的日志信息的输出。
2、logger context
各个logger 都被关联到一个 LoggerContext，LoggerContext负责制造logger，也负责以树结构排列各logger。
其他所有logger也通过org.slf4j.LoggerFactory 类的静态方法getLogger取得。 getLogger方法以 logger名称为参数。用同一名字调用LoggerFactory.getLogger 方法所得到的永远都是同一个logger对象的引用。
3、有效级别及级别的继承
Logger 可以被分配级别。级别包括：TRACE、DEBUG、INFO、WARN 和 ERROR，定义于ch.qos.logback.classic.Level类。如果 logger没有被分配级别，那么它将从有被分配级别的最近的祖先那里继承级别。root logger 默认级别是 DEBUG。
4、打印方法与基本的选择规则
打印方法决定记录请求的级别。例如，如果 L 是一个 logger 实例，那么，语句 L.info(“..”)是一条级别为 INFO的记录语句。记录请求的级别在高于或等于其 logger 的有效级别时被称为被启用，否则，称为被禁用。记录请求级别为 p，其 logger的有效级别为 q，只有则当 p>=q时，该请求才会被执行。
该规则是 logback 的核心。级别排序为： TRACE < DEBUG < INFO < WARN < ERROR 。
四、logback的默认配置
如果配置文件 logback-test.xml 和 logback.xml 都不存在，那么 logback 默认地会调用BasicConfigurator ，创建一个最小化配置。最小化配置由一个关联到根 logger 的ConsoleAppender 组成。输出用模式为%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} – %msg%n 的 PatternLayoutEncoder 进行格式化。root logger 默认级别是 DEBUG。
1、Logback的配置文件
Logback 配置文件的语法非常灵活。正因为灵活，所以无法用 DTD 或 XML schema 进行定义。尽管如此，可以这样描述配置文件的基本结构：以
2、Logback默认配置的步骤
- 尝试在 classpath下查找文件logback-test.xml；
- 如果文件不存在，则查找文件logback.xml；
- 如果两个文件都不存在，logback用BasicConfigurator自动对自己进行配置，这会导致记录输出到控制台。
五、logback.xml常用配置详解
1、根节点
包含下面三个属性：
scan: 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: 设置监测配置文件是否有修改的时间间隔，如果没有给出时间单位，默认单位是毫秒。当scan为true时，此属性生效。默认的时间间隔为1分钟。
debug: 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="60 seconds" debug="false"> configuration>
2、子节点
用来设置上下文名称，每个logger都关联到logger上下文，默认上下文名称为default。但可以使用
<configuration scan="true" scanPeriod="60 seconds" debug="false"> <contextName>myAppNamecontextName> configuration>
3、子节点
用来定义变量值，它有两个属性name和value，通过
name: 变量的名称
value: 的值时变量定义的值
<configuration scan="true" scanPeriod="60 seconds" debug="false"> <property name="APP_Name" value="myAppName" /> <contextName>${APP_Name}contextName> configuration>
4、子节点
获取时间戳字符串，他有两个属性key和datePattern
key: 标识此
<configuration scan="true" scanPeriod="60 seconds" debug="false"> <timestamp key="bySecond" datePattern="yyyyMMdd'T'HHmmss"/> <contextName>${bySecond}contextName> configuration>
5、子节点
负责写日志的组件，它有两个必要属性name和class。name指定appender名称，class指定appender的全限定名
5.1、ConsoleAppender 把日志输出到控制台，有以下子节点：
<configuration> <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"> <encoder> <pattern>%-4relative [%thread] %-5level %logger{35} - %msg %npattern> encoder> appender> <root level="DEBUG"> <appender-ref ref="STDOUT" /> root> configuration>
上述配置表示把>=DEBUG级别的日志都输出到控制台
5.2、FileAppender：把日志添加到文件，有以下子节点：
<configuration> <appender name="FILE" class="ch.qos.logback.core.FileAppender"> <file>testFile.logfile> <append>trueappend> <encoder> <pattern>%-4relative [%thread] %-5level %logger{35} - %msg%npattern> encoder> appender> <root level="DEBUG"> <appender-ref ref="FILE" /> root> configuration>
上述配置表示把>=DEBUG级别的日志都输出到testFile.log
5.3、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。有以下子节点：
必要节点，包含文件名及”%d”转换符，”%d”可以包含一个java.text.SimpleDateFormat指定的时间格式，如：%d{yyyy-MM}。
如果直接使用 %d，默认格式是 yyyy-MM-dd。RollingFileAppender的file字节点可有可无，通过设置file，可以为活动文件和归档文件指定不同位置，当前日志总是记录到file指定的文件（活动文件），活动文件的名字不会改变；
如果没设置file，活动文件的名字会根据fileNamePattern 的值，每隔一段时间改变一次。”/”或者”\”会被当做目录分隔符。
可选节点，控制保留的归档文件的最大数量，超出数量就删除旧文件。假设设置每个月滚动，且
class=”ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy”： 查看当前活动文件的大小，如果超过指定大小会告知RollingFileAppender 触发当前活动文件滚动。只有一个节点:
class=”ch.qos.logback.core.rolling.FixedWindowRollingPolicy” 根据固定窗口算法重命名文件的滚动策略。有以下子节点：
<configuration> <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender"> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <fileNamePattern>logFile.%d{yyyy-MM-dd}.logfileNamePattern> <maxHistory>30maxHistory> rollingPolicy> <encoder> <pattern>%-4relative [%thread] %-5level %logger{35} - %msg%n pattern> encoder> appender> <root level="DEBUG"> <appender-ref ref="FILE" /> root> configuration>
上述配置表示每天生成一个日志文件，保存30天的日志文件。
<configuration> <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender"> <file>test.logfile> <rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy"> <fileNamePattern>tests.%i.log.zipfileNamePattern> <minIndex>1minIndex> <maxIndex>3maxIndex> rollingPolicy> <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy"> <maxFileSize>5MBmaxFileSize> triggeringPolicy> <encoder> <pattern>%-4relative [%thread] %-5level %logger{35} - %msg%npattern> encoder> appender> <root level="DEBUG"> <appender-ref ref="FILE" /> root> configuration>
上述配置表示按照固定窗口模式生成日志文件，当文件大于20MB时，生成新的日志文件。窗口大小是1到3，当保存了3个归档文件后，将覆盖最早的日志。
PatternLayoutEncoder 是唯一有用的且默认的encoder ，有一个
5.4、还有SocketAppender、SMTPAppender、DBAppender、SyslogAppender、SiftingAppender，并不常用，这里就不详解了。大家可以参考官方文档（http://logback.qos.ch/documentation.html），还可以编写自己的Appender。
6、子节点
用来设置某一个包或具体的某一个类的日志打印级别、以及指定
可以包含零个或多个
name: 用来指定受此loger约束的某一个包或者具体的某一个类。
精确设置每个包下面的日志
<logger name="com.xxx" additivity="false"> <level value="info" /> <appender-ref ref="file" /> <appender-ref ref="console" /> logger>
level: 用来设置打印级别，大小写无关：TRACE, DEBUG, INFO, WARN, ERROR, ALL和OFF，还有一个特俗值INHERITED或者同义词NULL，代表强制执行上级的级别。 如果未设置此属性，那么当前loger将会继承上级的级别。
总结下各个节点的优先级：root
addtivity: 是否向上级loger传递打印信息。默认是true。同
如果将additivity=”true”，并且配置了相同的输出源，那打印结果将是什么呢？
没错，日志会重复打印，想必大家都知道原因了，因为打印信息向上级传递，logger本身打印一次，root接到后又打印一次。
类似这样的打印结果
14:09:01.531 [main] INFO logback.LogbackDemo - ======info
14:09:01.531 [main] INFO logback.LogbackDemo - ======info
14:09:01.531 [main] WARN logback.LogbackDemo - ======warn
14:09:01.531 [main] WARN logback.LogbackDemo - ======warn
14:09:01.531 [main] ERROR logback.LogbackDemo - ======error
14:09:01.531 [main] ERROR logback.LogbackDemo - ======error
View Code
7、appender 下面除了layout和encoder这两个子节点外，还有filter 子节点，下面主要介绍两种filter :
<filter class="ch.qos.logback.classic.filter.ThresholdFilter"> <level>ERRORlevel> filter> <filter class="ch.qos.logback.classic.filter.LevelFilter"> <level>INFOlevel> <onMatch>ACCEPTonMatch> <onMismatch>DENYonMismatch> filter>
8、子节点
它也是
level: 用来设置打印级别，大小写无关：TRACE, DEBUG, INFO, WARN, ERROR, ALL和OFF，不能设置为INHERITED或者同义词NULL。 默认是DEBUG。
六、常用loger配置
<logger name="org.hibernate.type.descriptor.sql.BasicBinder" level="TRACE" /> <logger name="org.hibernate.type.descriptor.sql.BasicExtractor" level="DEBUG" /> <logger name="org.hibernate.SQL" level="DEBUG" /> <logger name="org.hibernate.engine.QueryParameters" level="DEBUG" /> <logger name="org.hibernate.engine.query.HQLQueryPlan" level="DEBUG" /> <logger name="com.apache.ibatis" level="TRACE"/> <logger name="java.sql.Connection" level="DEBUG"/> <logger name="java.sql.Statement" level="DEBUG"/> <logger name="java.sql.PreparedStatement" level="DEBUG"/>
七、Demo
1、添加依赖包logback使用需要和slf4j一起使用，所以总共需要添加依赖的包有slf4j-api
logback使用需要和slf4j一起使用，所以总共需要添加依赖的包有slf4j-api.jar，logback-core.jar，logback-classic.jar，logback-access.jar这个暂时用不到所以不添加依赖了，maven配置。
<properties> <project.build.sourceEncoding>UTF-8project.build.sourceEncoding> <logback.version>1.1.7logback.version> <slf4j.version>1.7.21slf4j.version> properties> <dependencies> <dependency> <groupId>org.slf4jgroupId> <artifactId>slf4j-apiartifactId> <version>${slf4j.version}version> <scope>compilescope> dependency> <dependency> <groupId>ch.qos.logbackgroupId> <artifactId>logback-coreartifactId> <version>${logback.version}version> dependency> <dependency> <groupId>ch.qos.logbackgroupId> <artifactId>logback-classicartifactId> <version>${logback.version}version> dependency> dependencies>
2、logback.xml配置
xml version="1.0" encoding="UTF-8"?> <configuration debug="false"> <property name="LOG_HOME" value="/home" /> <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"> <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"> <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%npattern> encoder> appender> <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender"> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <FileNamePattern>${LOG_HOME}/TestWeb.log.%d{yyyy-MM-dd}.logFileNamePattern> <MaxHistory>30MaxHistory> rollingPolicy> <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"> <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%npattern> encoder> <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy"> <MaxFileSize>10MBMaxFileSize> triggeringPolicy> appender> <root level="INFO"> <appender-ref ref="STDOUT" /> root> configuration>
3、java代码
/**
* Hello world!
*/
public class App {
private final static Logger logger = LoggerFactory.getLogger(App.class);
public static void main(String[] args) {
logger.info("logback 成功了");
logger.error("logback 成功了");
logger.debug("logback 成功了");
}
}
八、总结
logback的配置，需要配置输出源appender，打日志的loger（子节点）和root（根节点），实际上，它输出日志是从子节点开始，子节点如果有输出源直接输入，如果无，判断配置的addtivity，是否像上级传递，即是否向root传递，传递则采用root的输出源，否则不输出日志。
日志的使用方式，就跟普通使用一样，只不过，此配置配置的是不仅在控制台输出而且在磁盘上也会保留，并且info/debug/error/warn的日志都可以区分开到不同文件，并且按照每天做了归档。
九、以下附上logback的配置示例
<?xml version="1.0" encoding="UTF-8" ?><configuration scan="true" scanPeriod="60 seconds" debug="false">
<span><</span><span>jmxConfigurator</span><span>/></span> <span><</span><span>property </span><span>name</span><span>="log.home_dir"</span><span> value</span><span>="F:\logs"</span><span>/></span> <span><</span><span>property </span><span>name</span><span>="log.maxHistory"</span><span> value</span><span>="30"</span><span>/></span> <span><</span><span>property </span><span>name</span><span>="log.level"</span><span> value</span><span>="debug"</span><span>/></span> <span><</span><span>appender </span><span>name</span><span>="console"</span><span> class</span><span>="ch.qos.logback.core.ConsoleAppender"</span><span>></span> <span><</span><span>encoder</span><span>></span> <span><</span><span>pattern</span><span>></span> <span> %d{yyyy-MM-dd HH:mm:ss.SSS} [%-5level] %logger - %msg%n </span><span><span>pattern</span><span>></span> <span><span>encoder</span><span>></span> <span><span>appender</span><span>></span> <span><</span><span>appender </span><span>name</span><span>="ERROR"</span><span> class</span><span>="ch.qos.logback.core.rolling.RollingFileAppender"</span><span>></span> <span><</span><span>filter </span><span>class</span><span>="ch.qos.logback.classic.filter.LevelFilter"</span><span>></span> <span><</span><span>level</span><span>></span>ERROR<span><span>level</span><span>></span> <span><</span><span>onMatch</span><span>></span>ACCEPT<span><span>onMatch</span><span>></span> <span><</span><span>onMismatch</span><span>></span>DENY<span><span>onMismatch</span><span>></span> <span><span>filter</span><span>></span> <span><</span><span>rollingPolicy </span><span>class</span><span>="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"</span><span>></span> <span><</span><span>fileNamePattern</span><span>></span><span> ${log.home_dir}/error/%d{yyyy-MM-dd}/my-demo-%i.log </span><span><span>fileNamePattern</span><span>></span> <span><</span><span>maxHistory</span><span>></span>${log.maxHistory}<span><span>maxHistory</span><span>></span> <span><</span><span>TimeBasedFileNamingAndTriggeringPolicy </span><span>class</span><span>="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP"</span><span>></span> <span> %d{yyyy-MM-dd HH:mm:ss.SSS} [%-5level] %logger - %msg%n </span><span><span>pattern</span><span>></span> <span><span>encoder</span><span>></span> <span><span>appender</span><span>></span> <span><</span><span>appender </span><span>name</span><span>="WARN"</span><span> class</span><span>="ch.qos.logback.core.rolling.RollingFileAppender"</span><span>></span> <span><</span><span>filter </span><span>class</span><span>="ch.qos.logback.classic.filter.LevelFilter"</span><span>></span> <span><</span><span>level</span><span>></span>WARN<span><span>level</span><span>></span> <span><</span><span>onMatch</span><span>></span>ACCEPT<span><span>onMatch</span><span>></span> <span><</span><span>onMismatch</span><span>></span>DENY<span><span>onMismatch</span><span>></span> <span><span>filter</span><span>></span> <span><</span><span>rollingPolicy </span><span>class</span><span>="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"</span><span>></span> <span><</span><span>fileNamePattern</span><span>></span>${log.home_dir}/warn/%d{yyyy-MM-dd}/my-demo-%i.log<span><span>fileNamePattern</span><span>></span> <span><</span><span>maxHistory</span><span>></span>${log.maxHistory}<span><span>maxHistory</span><span>></span> <span><</span><span>TimeBasedFileNamingAndTriggeringPolicy </span><span>class</span><span>="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP"</span><span>></span> <span><</span><span>MaxFileSize</span><span>></span>2MB<span><span>MaxFileSize</span><span>></span> <span><span>TimeBasedFileNamingAndTriggeringPolicy</span><span>></span> <span><span>rollingPolicy</span><span>></span> <span><</span><span>encoder</span><span>></span> <span><</span><span>pattern</span><span>></span>%d{yyyy-MM-dd HH:mm:ss.SSS} [%-5level] %logger - %msg%n<span><span>pattern</span><span>></span> <span><span>encoder</span><span>></span> <span><span>appender</span><span>></span> <span><</span><span>appender </span><span>name</span><span>="INFO"</span><span> class</span><span>="ch.qos.logback.core.rolling.RollingFileAppender"</span><span>></span> <span><</span><span>filter </span><span>class</span><span>="ch.qos.logback.classic.filter.LevelFilter"</span><span>></span> <span><</span><span>level</span><span>></span>INFO<span><span>level</span><span>></span> <span><</span><span>onMatch</span><span>></span>ACCEPT<span><span>onMatch</span><span>></span> <span><</span><span>onMismatch</span><span>></span>DENY<span><span>onMismatch</span><span>></span> <span><span>filter</span><span>></span> <span><</span><span>rollingPolicy </span><span>class</span><span>="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"</span><span>></span> <span><</span><span>fileNamePattern</span><span>></span>${log.home_dir}/info/%d{yyyy-MM-dd}/my-demo-%i.log<span><span>fileNamePattern</span><span>></span> <span><</span><span>maxHistory</span><span>></span>${log.maxHistory}<span><span>maxHistory</span><span>></span> <span><</span><span>TimeBasedFileNamingAndTriggeringPolicy </span><span>class</span><span>="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP"</span><span>></span> <span><</span><span>MaxFileSize</span><span>></span>2MB<span><span>MaxFileSize</span><span>></span> <span><span>TimeBasedFileNamingAndTriggeringPolicy</span><span>></span> <span><span>rollingPolicy</span><span>></span> <span><</span><span>encoder</span><span>></span> <span><</span><span>pattern</span><span>></span>%d{yyyy-MM-dd HH:mm:ss.SSS} [%-5level] %logger - %msg%n<span><span>pattern</span><span>></span> <span><span>encoder</span><span>></span> <span><span>appender</span><span>></span> <span><</span><span>appender </span><span>name</span><span>="DEBUG"</span><span> class</span><span>="ch.qos.logback.core.rolling.RollingFileAppender"</span><span>></span> <span><</span><span>filter </span><span>class</span><span>="ch.qos.logback.classic.filter.LevelFilter"</span><span>></span> <span><</span><span>level</span><span>></span>DEBUG<span><span>level</span><span>></span> <span><</span><span>onMatch</span><span>></span>ACCEPT<span><span>onMatch</span><span>></span> <span><</span><span>onMismatch</span><span>></span>DENY<span><span>onMismatch</span><span>></span> <span><span>filter</span><span>></span> <span><</span><span>rollingPolicy </span><span>class</span><span>="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"</span><span>></span> <span><</span><span>fileNamePattern</span><span>></span>${log.home_dir}/debug/%d{yyyy-MM-dd}/my-demo-%i.log<span><span>fileNamePattern</span><span>></span> <span><</span><span>maxHistory</span><span>></span>${log.maxHistory}<span><span>maxHistory</span><span>></span> <span><</span><span>TimeBasedFileNamingAndTriggeringPolicy </span><span>class</span><span>="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP"</span><span>></span> <span><</span><span>MaxFileSize</span><span>></span>2MB<span><span>MaxFileSize</span><span>></span> <span><span>TimeBasedFileNamingAndTriggeringPolicy</span><span>></span> <span><span>rollingPolicy</span><span>></span> <span><</span><span>encoder</span><span>></span> <span><</span><span>pattern</span><span>></span>%d{yyyy-MM-dd HH:mm:ss.SSS} [%-5level] %logger - %msg%n<span><span>pattern</span><span>></span> <span><span>encoder</span><span>></span> <span><span>appender</span><span>></span> <span><</span><span>appender </span><span>name</span><span>="TRACE"</span><span> class</span><span>="ch.qos.logback.core.rolling.RollingFileAppender"</span><span>></span> <span><</span><span>filter </span><span>class</span><span>="ch.qos.logback.classic.filter.LevelFilter"</span><span>></span> <span><</span><span>level</span><span>></span>TRACE<span><span>level</span><span>></span> <span><</span><span>onMatch</span><span>></span>ACCEPT<span><span>onMatch</span><span>></span> <span><</span><span>onMismatch</span><span>></span>DENY<span><span>onMismatch</span><span>></span> <span><span>filter</span><span>></span> <span><</span><span>rollingPolicy </span><span>class</span><span>="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"</span><span>></span> <span><</span><span>fileNamePattern</span><span>></span>${log.home_dir}/trace/%d{yyyy-MM-dd}/my-demo-%i.log<span><span>fileNamePattern</span><span>></span> <span><</span><span>maxHistory</span><span>></span>${log.maxHistory}<span><span>maxHistory</span><span>></span> <span><</span><span>TimeBasedFileNamingAndTriggeringPolicy </span><span>class</span><span>="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP"</span><span>></span> <span><</span><span>MaxFileSize</span><span>></span>2MB<span><span>MaxFileSize</span><span>></span> <span><span>TimeBasedFileNamingAndTriggeringPolicy</span><span>></span> <span><span>rollingPolicy</span><span>></span> <span><</span><span>encoder</span><span>></span> <span><</span><span>pattern</span><span>></span>%d{yyyy-MM-dd HH:mm:ss.SSS} [%-5level] %logger - %msg%n<span><span>pattern</span><span>></span> <span><span>encoder</span><span>></span> <span><span>appender</span><span>></span> <span><</span><span>root</span><span>></span> <span><</span><span>level </span><span>value</span><span>="${log.level}"</span><span>/></span> <span><</span><span>appender-ref </span><span>ref</span><span>="console"</span><span>/></span> <span><</span><span>appender-ref </span><span>ref</span><span>="ERROR"</span><span>/></span> <span><</span><span>appender-ref </span><span>ref</span><span>="INFO"</span><span>/></span> <span><</span><span>appender-ref </span><span>ref</span><span>="WARN"</span><span>/></span> <span><</span><span>appender-ref </span><span>ref</span><span>="DEBUG"</span><span>/></span> <span><</span><span>appender-ref </span><span>ref</span><span>="TRACE"</span><span>/></span> <span><span>root</span><span>></span>configuration>View Code
<?xml version="1.0" encoding="UTF-8"?> <configuration><span><</span><span>contextName</span><span>></span>SpringBootDemo<span><span>contextName</span><span>></span> <span><</span><span>property </span><span>name</span><span>="LOG_PATH"</span><span> value</span><span>="D:\\JavaWebLogs"</span> <span>/></span> <span><</span><span>property </span><span>name</span><span>="APPDIR"</span><span> value</span><span>="SpringBootDemo"</span> <span>/></span> <span><</span><span>appender </span><span>name</span><span>="FILEERROR"</span><span> class</span><span>="ch.qos.logback.core.rolling.RollingFileAppender"</span><span>></span> <span><</span><span>file</span><span>></span>${LOG_PATH}/${APPDIR}/log_error.log<span><span>file</span><span>></span> <span><</span><span>rollingPolicy </span><span>class</span><span>="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"</span><span>></span> <span><</span><span>fileNamePattern</span><span>></span>${LOG_PATH}/${APPDIR}/error/log-error-%d{yyyy-MM-dd}.%i.log<span><span>fileNamePattern</span><span>></span> <span><</span><span>timeBasedFileNamingAndTriggeringPolicy </span><span>class</span><span>="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP"</span><span>></span> <span><</span><span>maxFileSize</span><span>></span>2MB<span><span>maxFileSize</span><span>></span> <span><span>timeBasedFileNamingAndTriggeringPolicy</span><span>></span> <span><span>rollingPolicy</span><span>></span> <span><</span><span>append</span><span>></span>true<span><span>append</span><span>></span> <span><</span><span>encoder </span><span>class</span><span>="ch.qos.logback.classic.encoder.PatternLayoutEncoder"</span><span>></span> <span><</span><span>pattern</span><span>></span>===%d{yyyy-MM-dd HH:mm:ss.SSS} %-5level %logger Line:%-3L - %msg%n<span><span>pattern</span><span>></span> <span><</span><span>charset</span><span>></span>utf-8<span><span>charset</span><span>></span> <span><span>encoder</span><span>></span> <span><</span><span>filter </span><span>class</span><span>="ch.qos.logback.classic.filter.LevelFilter"</span><span>></span> <span><</span><span>level</span><span>></span>error<span><span>level</span><span>></span> <span><</span><span>onMatch</span><span>></span>ACCEPT<span><span>onMatch</span><span>></span> <span><</span><span>onMismatch</span><span>></span>DENY<span><span>onMismatch</span><span>></span> <span><span>filter</span><span>></span> <span><span>appender</span><span>></span> <span><</span><span>appender </span><span>name</span><span>="FILEWARN"</span><span> class</span><span>="ch.qos.logback.core.rolling.RollingFileAppender"</span><span>></span> <span><</span><span>file</span><span>></span>${LOG_PATH}/${APPDIR}/log_warn.log<span><span>file</span><span>></span> <span><</span><span>rollingPolicy </span><span>class</span><span>="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"</span><span>></span> <span><</span><span>fileNamePattern</span><span>></span>${LOG_PATH}/${APPDIR}/warn/log-warn-%d{yyyy-MM-dd}.%i.log<span><span>fileNamePattern</span><span>></span> <span><</span><span>timeBasedFileNamingAndTriggeringPolicy </span><span>class</span><span>="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP"</span><span>></span> <span><</span><span>maxFileSize</span><span>></span>2MB<span><span>maxFileSize</span><span>></span> <span><span>timeBasedFileNamingAndTriggeringPolicy</span><span>></span> <span><span>rollingPolicy</span><span>></span> <span><</span><span>append</span><span>></span>true<span><span>append</span><span>></span> <span><</span><span>encoder </span><span>class</span><span>="ch.qos.logback.classic.encoder.PatternLayoutEncoder"</span><span>></span> <span><</span><span>pattern</span><span>></span>===%d{yyyy-MM-dd HH:mm:ss.SSS} %-5level %logger Line:%-3L - %msg%n<span><span>pattern</span><span>></span> <span><</span><span>charset</span><span>></span>utf-8<span><span>charset</span><span>></span> <span><span>encoder</span><span>></span> <span><</span><span>filter </span><span>class</span><span>="ch.qos.logback.classic.filter.LevelFilter"</span><span>></span> <span><</span><span>level</span><span>></span>warn<span><span>level</span><span>></span> <span><</span><span>onMatch</span><span>></span>ACCEPT<span><span>onMatch</span><span>></span> <span><</span><span>onMismatch</span><span>></span>DENY<span><span>onMismatch</span><span>></span> <span><span>filter</span><span>></span> <span><span>appender</span><span>></span> <span><</span><span>appender </span><span>name</span><span>="FILEINFO"</span><span> class</span><span>="ch.qos.logback.core.rolling.RollingFileAppender"</span><span>></span> <span><</span><span>file</span><span>></span>${LOG_PATH}/${APPDIR}/log_info.log<span><span>file</span><span>></span> <span><</span><span>rollingPolicy </span><span>class</span><span>="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"</span><span>></span> <span><</span><span>fileNamePattern</span><span>></span>${LOG_PATH}/${APPDIR}/info/log-info-%d{yyyy-MM-dd}.%i.log<span><span>fileNamePattern</span><span>></span> <span><</span><span>timeBasedFileNamingAndTriggeringPolicy </span><span>class</span><span>="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP"</span><span>></span> <span><</span><span>maxFileSize</span><span>></span>2MB<span><span>maxFileSize</span><span>></span> <span><span>timeBasedFileNamingAndTriggeringPolicy</span><span>></span> <span><span>rollingPolicy</span><span>></span> <span><</span><span>append</span><span>></span>true<span><span>append</span><span>></span> <span><</span><span>encoder </span><span>class</span><span>="ch.qos.logback.classic.encoder.PatternLayoutEncoder"</span><span>></span> <span><</span><span>pattern</span><span>></span>===%d{yyyy-MM-dd HH:mm:ss.SSS} %-5level %logger Line:%-3L - %msg%n<span><span>pattern</span><span>></span> <span><</span><span>charset</span><span>></span>utf-8<span><span>charset</span><span>></span> <span><span>encoder</span><span>></span> <span><</span><span>filter </span><span>class</span><span>="ch.qos.logback.classic.filter.LevelFilter"</span><span>></span> <span><</span><span>level</span><span>></span>info<span><span>level</span><span>></span> <span><</span><span>onMatch</span><span>></span>ACCEPT<span><span>onMatch</span><span>></span> <span><</span><span>onMismatch</span><span>></span>DENY<span><span>onMismatch</span><span>></span> <span><span>filter</span><span>></span> <span><span>appender</span><span>></span> <span><</span><span>appender </span><span>name</span><span>="STDOUT"</span><span> class</span><span>="ch.qos.logback.core.ConsoleAppender"</span><span>></span> <span><</span><span>encoder</span><span>></span> <span><</span><span>pattern</span><span>></span>===%d{yyyy-MM-dd HH:mm:ss.SSS} %-5level %logger Line:%-3L - %msg%n<span><span>pattern</span><span>></span> <span><</span><span>charset</span><span>></span>utf-8<span><span>charset</span><span>></span> <span><span>encoder</span><span>></span> <span><</span><span>filter </span><span>class</span><span>="ch.qos.logback.classic.filter.ThresholdFilter"</span><span>></span> <span><</span><span>level</span><span>></span>debug<span><span>level</span><span>></span> <span><span>filter</span><span>></span> <span><span>appender</span><span>></span> <span><</span><span>logger </span><span>name</span><span>="org.springframework"</span><span> level</span><span>="WARN"</span> <span>/></span> <span><</span><span>logger </span><span>name</span><span>="org.hibernate"</span><span> level</span><span>="WARN"</span> <span>/></span> <span><</span><span>root </span><span>level</span><span>="INFO"</span><span>></span> <span><</span><span>appender-ref </span><span>ref</span><span>="FILEERROR"</span> <span>/></span> <span><</span><span>appender-ref </span><span>ref</span><span>="FILEWARN"</span> <span>/></span> <span><</span><span>appender-ref </span><span>ref</span><span>="FILEINFO"</span> <span>/></span> <span><</span><span>appender-ref </span><span>ref</span><span>="STDOUT"</span> <span>/></span> <span><span>root</span><span>></span>configuration>View Code
<?xml version="1.0" encoding="UTF-8" standalone="no"?> <configuration><span><</span><span>appender </span><span>name</span><span>="Stdout"</span><span> class</span><span>="ch.qos.logback.core.ConsoleAppender"</span><span>></span> <span><</span><span>encoder </span><span>charset</span><span>="UTF-8"</span><span>></span> <span><</span><span>pattern</span><span>></span>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{0} - %msg%n<span><span>pattern</span><span>></span> <span><span>encoder</span><span>></span> <span><span>appender</span><span>></span> <span><</span><span>appender </span><span>name</span><span>="RollingFile"</span><span> class</span><span>="ch.qos.logback.core.rolling.RollingFileAppender"</span><span>></span> <span><</span><span>filter </span><span>class</span><span>="ch.qos.logback.classic.filter.ThresholdFilter"</span><span>></span> <span><</span><span>level</span><span>></span>TRACE<span><span>level</span><span>></span> <span><span>filter</span><span>></span> <span><</span><span>file</span><span>></span>/home/smkzpp/logs/ehcard/rolling/app.log<span><span>file</span><span>></span> <span><</span><span>rollingPolicy </span><span>class</span><span>="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"</span><span>></span> <span><</span><span>fileNamePattern</span><span>></span><span>/home/smkzpp/logs/ehcard/rolling/backup/app-%d{yyyy-MM-dd}.%i.zip </span><span><span>fileNamePattern</span><span>></span> <span><</span><span>timeBasedFileNamingAndTriggeringPolicy </span><span>class</span><span>="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP"</span><span>></span> <span><</span><span>maxFileSize</span><span>></span>500MB<span><span>maxFileSize</span><span>></span> <span><span>timeBasedFileNamingAndTriggeringPolicy</span><span>></span> <span><span>rollingPolicy</span><span>></span> <span><</span><span>encoder</span><span>></span> <span><</span><span>pattern</span><span>></span>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{0} - %msg%n<span><span>pattern</span><span>></span> <span><span>encoder</span><span>></span> <span><span>appender</span><span>></span> <span><</span><span>appender </span><span>name</span><span>="ErrorRollingFile"</span><span> class</span><span>="ch.qos.logback.core.rolling.RollingFileAppender"</span><span>></span> <span><</span><span>filter </span><span>class</span><span>="ch.qos.logback.classic.filter.ThresholdFilter"</span><span>></span> <span><</span><span>level</span><span>></span>ERROR<span><span>level</span><span>></span> <span><span>filter</span><span>></span> <span><</span><span>file</span><span>></span>/home/smkzpp/logs/ehcard/error/app.log<span><span>file</span><span>></span> <span><</span><span>rollingPolicy </span><span>class</span><span>="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"</span><span>></span> <span><</span><span>fileNamePattern</span><span>></span><span>/home/smkzpp/logs/ehcard/error/backup/app-%d{yyyy-MM-dd}.%i.zip </span><span><span>fileNamePattern</span><span>></span> <span><</span><span>timeBasedFileNamingAndTriggeringPolicy </span><span>class</span><span>="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP"</span><span>></span> <span><</span><span>maxFileSize</span><span>></span>500MB<span><span>maxFileSize</span><span>></span> <span><span>timeBasedFileNamingAndTriggeringPolicy</span><span>></span> <span><span>rollingPolicy</span><span>></span> <span><</span><span>encoder</span><span>></span> <span><</span><span>pattern</span><span>></span>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{0} - %msg%n<span><span>pattern</span><span>></span> <span><span>encoder</span><span>></span> <span><span>appender</span><span>></span> <span><</span><span>appender </span><span>name</span><span>="StdoutAysnc"</span><span> class</span><span>="ch.qos.logback.classic.AsyncAppender"</span><span>></span> <span><</span><span>discardingThreshold</span><span>></span>0<span><span>discardingThreshold</span><span>></span> <span><</span><span>queueSize</span><span>></span>4096<span><span>queueSize</span><span>></span> <span><</span><span>appender-ref </span><span>ref</span><span>="Stdout"</span> <span>/></span> <span><span>appender</span><span>></span> <span><</span><span>appender </span><span>name</span><span>="RollingFileAsync"</span><span> class</span><span>="ch.qos.logback.classic.AsyncAppender"</span><span>></span> <span><</span><span>discardingThreshold</span><span>></span>0<span><span>discardingThreshold</span><span>></span> <span><</span><span>queueSize</span><span>></span>4096<span><span>queueSize</span><span>></span> <span><</span><span>appender-ref </span><span>ref</span><span>="RollingFile"</span> <span>/></span> <span><span>appender</span><span>></span> <span><</span><span>appender </span><span>name</span><span>="ErrorRollingFileAsync"</span><span> class</span><span>="ch.qos.logback.classic.AsyncAppender"</span><span>></span> <span><</span><span>discardingThreshold</span><span>></span>0<span><span>discardingThreshold</span><span>></span> <span><</span><span>queueSize</span><span>></span>4096<span><span>queueSize</span><span>></span> <span><</span><span>appender-ref </span><span>ref</span><span>="ErrorRollingFile"</span> <span>/></span> <span><span>appender</span><span>></span> <span><</span><span>root </span><span>level</span><span>="DEBUG"</span><span>></span> <span><</span><span>appender-ref </span><span>ref</span><span>="StdoutAysnc"</span><span>/></span> <span><</span><span>appender-ref </span><span>ref</span><span>="RollingFileAsync"</span><span>/></span> <span><</span><span>appender-ref </span><span>ref</span><span>="ErrorRollingFileAsync"</span><span>/></span> <span><span>root</span><span>></span> <span><</span><span>logger </span><span>name</span><span>="org.apache"</span><span> level</span><span>="INFO"</span><span>/></span> <span><</span><span>logger </span><span>name</span><span>="net.sf.ehcache"</span><span> level</span><span>="INFO"</span><span>/></span> <span><</span><span>logger </span><span>name</span><span>="com.google.code"</span><span> level</span><span>="INFO"</span><span>/></span> <span><</span><span>logger </span><span>name</span><span>="com.google.code.yanf4j"</span><span> level</span><span>="ERROR"</span><span>/></span> <span><</span><span>logger </span><span>name</span><span>="redis.clients.jedis"</span><span> level</span><span>="ERROR"</span><span>/></span> <span><</span><span>logger </span><span>name</span><span>="org.springframework"</span><span> level</span><span>="INFO"</span><span>/></span> <span><</span><span>logger </span><span>name</span><span>="org.apache.velocity"</span><span> level</span><span>="WARN"</span><span>/></span> <span><</span><span>logger </span><span>name</span><span>="cn.mitec.eclp.client"</span><span> level</span><span>="WARN"</span><span>/></span> <span><</span><span>logger </span><span>name</span><span>="cn.mitec.network.melody"</span><span> level</span><span>="INFO"</span><span>/></span> <span><</span><span>logger </span><span>name</span><span>="net.rubyeye.xmemcached"</span><span> level</span><span>="INFO"</span><span>></span> <span><</span><span>appender-ref </span><span>ref</span><span>="StdoutAysnc"</span><span>/></span> <span><</span><span>appender-ref </span><span>ref</span><span>="RollingFileAsync"</span><span>/></span> <span><</span><span>appender-ref </span><span>ref</span><span>="ErrorRollingFileAsync"</span><span>/></span> <span><span>logger</span><span>></span> <span><</span><span>logger </span><span>name</span><span>="java.sql.Statement"</span><span> level</span><span>="DEBUG"</span><span> additivity</span><span>="false"</span><span>></span> <span><</span><span>appender-ref </span><span>ref</span><span>="StdoutAysnc"</span><span>/></span> <span><</span><span>appender-ref </span><span>ref</span><span>="RollingFileAsync"</span><span>/></span> <span><</span><span>appender-ref </span><span>ref</span><span>="ErrorRollingFileAsync"</span><span>/></span> <span><span>logger</span><span>></span> <span><</span><span>logger </span><span>name</span><span>="java.sql.PreparedStatement"</span><span> level</span><span>="DEBUG"</span><span> additivity</span><span>="false"</span><span>></span> <span><</span><span>appender-ref </span><span>ref</span><span>="StdoutAysnc"</span><span>/></span> <span><</span><span>appender-ref </span><span>ref</span><span>="RollingFileAsync"</span><span>/></span> <span><</span><span>appender-ref </span><span>ref</span><span>="ErrorRollingFileAsync"</span><span>/></span> <span><span>logger</span><span>></span> <span><</span><span>logger </span><span>name</span><span>="java.sql.Connection"</span><span> level</span><span>="DEBUG"</span><span> additivity</span><span>="false"</span><span>></span> <span><</span><span>appender-ref </span><span>ref</span><span>="StdoutAysnc"</span><span>/></span> <span><</span><span>appender-ref </span><span>ref</span><span>="RollingFileAsync"</span><span>/></span> <span><</span><span>appender-ref </span><span>ref</span><span>="ErrorRollingFileAsync"</span><span>/></span> <span><span>logger</span><span>></span> <span><</span><span>logger </span><span>name</span><span>="java.sql.ResultSet"</span><span> level</span><span>="DEBUG"</span><span> additivity</span><span>="false"</span><span>></span> <span><</span><span>appender-ref </span><span>ref</span><span>="StdoutAysnc"</span><span>/></span> <span><</span><span>appender-ref </span><span>ref</span><span>="RollingFileAsync"</span><span>/></span> <span><</span><span>appender-ref </span><span>ref</span><span>="ErrorRollingFileAsync"</span><span>/></span> <span><span>logger</span><span>></span>configuration>View Code
十、springboot logback配置
将logback-spring.xml或者logback.xml放在src/main/resources下，springBoot日志框架会自动识别日志配置。
建议使用logback-spring.xml命名（官方推荐-spring.xml），因为可以使用springBoot的 高级属性（springProfile）：可以加上开发模式、测试模式、生产模式的配置，利于多环境打包。
示例：
使用 springProfile配置，logback日志配置文件必须命名为：logback-spring.xml
<springProfile name="dev"> <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"> <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"> <pattern>---dev - %d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%npattern> encoder> appender> springProfile> <springProfile name="test"> <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"> <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"> <pattern>===test %d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%npattern> encoder> appender> springProfile> <springProfile name="zprod"> <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"> <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"> <pattern>+++zprod %d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%npattern> encoder> appender> springProfile>然后在application.properties配置spring.profiles.active属性：
logging.config = classpath:logback-spring.xml spring.profiles.active=dev也可以在配置文件里根据多环境动态配置变量：
<springProfile name="dev"> <property name="logHome" value="/home/app/log/bus1" scope="context" /> springProfile> <springProfile name="test"> <property name="logHome" value="/home/app/log/bus2" scope="context" /> springProfile> <springProfile name="prd"> <property name="logHome" value="/home/app/log/bus3" scope="context" /> springProfile> <appender name="ERROR_WARN" class="ch.qos.logback.core.rolling.RollingFileAppender"> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <fileNamePattern>${logHome}/error_warn_%d{yyyy-MM-dd}.logfileNamePattern> <MaxHistory>90MaxHistory> rollingPolicy> <encoder> <Pattern> %-4r %d{yyyy-MM-dd HH:mm:ss.SSS} %thread %-5level %logger - %m%n Pattern> encoder> appender>十一、日志按日期和大小回滚
刚接手项目里面的日志模块，发现项目启动后无法在实现日志按时间大小滚动，原本的配置文件如下：
<appender name="XXX" class="ch.qos.logback.core.rolling.RollingFileAppender"> <file>${LOG_HOME}/${XXX}.logfile> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <fileNamePattern>${LOG_HOME}/${XXX}-%d{yyyy-MM-dd}-%i.logfileNamePattern> <MaxHistory>7MaxHistory> <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP"> <maxFileSize>100MBmaxFileSize> timeBasedFileNamingAndTriggeringPolicy> rollingPolicy> <filter class="ch.qos.logback.classic.filter.LevelFilter"> <level>INFOlevel> <onMatch>ACCEPTonMatch> <onMismatch>DENYonMismatch> filter> <layout class="ch.qos.logback.classic.PatternLayout"> <Pattern>${FILE_LOG_PATTERN}Pattern> layout> appender>修改为：
<appender name="XXX" class="ch.qos.logback.core.rolling.RollingFileAppender"> <file>${LOG_HOME}/${XXX}.logfile> <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy"> <fileNamePattern>${LOG_HOME}/${XXX}/${XXX}.%d{yyyy-MM-dd_HH}.%i.logfileNamePattern> <MaxHistory>168MaxHistory> <maxFileSize>200MBmaxFileSize> rollingPolicy> <filter class="ch.qos.logback.classic.filter.LevelFilter"> <level>INFOlevel> <onMatch>ACCEPTonMatch> <onMismatch>DENYonMismatch> filter> <layout class="ch.qos.logback.classic.PatternLayout"> <Pattern>${FILE_LOG_PATTERN}Pattern> layout> appender>修改完成后日志可以正常滚动。
Original: https://www.cnblogs.com/better-farther-world2099/p/10201208.html
Author: 奕锋博客
Title: logback的使用
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