about 8 years ago
在某一次問卷中看到了不少人選擇此套件作為log工具，引起了我的好奇，所以趁這次拿來練練看
可以很好的整合slf4j，也有自動完成載入設定的機制，用起來比log4j還簡單，更重要的是又小又快
廢話不多說，先添加套件，slf4j已經被設定為相依性套件，所以你不用再指定
dependencies {
compile 'ch.qos.logback:logback-classic:1.1.2'
}
在resources資料夾新增xml
<?xml version="1.0" encoding="UTF-8"?>
<configuration debug="false">
<contextName>Logback Demo</contextName>
<property name="LOG_HOME" value="D:/logs" />
<property name="CHARSET" value="UTF-8" />
<property name="PATTERN" value="%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n" />
<!-- 控制台輸出 -->
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<!-- encoder默認配置為PartternLayoutEncoder -->
<encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
<pattern>${PATTERN}</pattern>
<charset>${CHARSET}</charset>
</encoder>
</appender>
<!-- 持續輸出的日誌檔案 -->
<appender name="FILE" class="ch.qos.logback.core.FileAppender">
<file>${LOG_HOME}/myLog.log</file>
<encoder>
<pattern>${PATTERN}</pattern>
<charset>${CHARSET}</charset>
</encoder>
</appender>
<!-- 按照每天生成日誌文件 -->
<appender name="ROLLINGFILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<!--日誌文件輸出的文件名-->
<FileNamePattern>${LOG_HOME}/root-%d{yyyy-MM-dd}.log</FileNamePattern>
<!--日誌文件保留天數-->
<MaxHistory>30</MaxHistory>
</rollingPolicy>
<encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
<pattern>${PATTERN}</pattern>
<charset>${CHARSET}</charset>
</encoder>
<!--日誌文件最大的大小-->
<triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
<MaxFileSize>100MB</MaxFileSize>
</triggeringPolicy>
</appender>
<!-- 系統用每日生成日誌文件 -->
<appender name="SYSTEMROLLINGFILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<!--日誌文件輸出的文件名-->
<FileNamePattern>${LOG_HOME}/system-%d{yyyy-MM-dd}.log</FileNamePattern>
<!--日誌文件保留天數-->
<MaxHistory>30</MaxHistory>
</rollingPolicy>
<encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
<pattern>${PATTERN}</pattern>
<charset>${CHARSET}</charset>
</encoder>
<!--日誌文件最大的大小-->
<triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
<MaxFileSize>100MB</MaxFileSize>
</triggeringPolicy>
</appender>
<!-- 超出固定大小後壓縮檔案的日誌 -->
<appender name="DFILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>${LOG_HOME}/debug.log</file>
<rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
<fileNamePattern>${LOG_HOME}/debug.%i.log.zip</fileNamePattern>
<minIndex>1</minIndex>
<maxIndex>3</maxIndex>
</rollingPolicy>
<triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
<maxFileSize>1MB</maxFileSize>
</triggeringPolicy>
<encoder>
<pattern>%d{HH:mm:ss.SSS} %-5level %logger{35} - %msg%n</pattern>
</encoder>
</appender>
<logger name="org.hibernate.engine.query.HQLQueryPlan" level="DEBUG" additivity="false" />
<logger name="com.piedra.logback" level="WARN" additivity="false">
<appender-ref ref="FILE" />
</logger>
<logger name="system" level="INFO" additivity="false">
<appender-ref ref="SYSTEMROLLINGFILE" />
</logger>
<root level="INFO" additivity="false">
<appender-ref ref="STDOUT" />
<appender-ref ref="ROLLINGFILE" />
</root>
</configuration>
如果沒有指定路徑檔案會跑到你的IDE目錄下，我的是會跑到D:\IDE\eclipse\system.log
如果試不出來的話可以在程式內添加
LoggerContext lc = (LoggerContext) LoggerFactory.getILoggerFactory();
StatusPrinter.print(lc);
你就可以知道大概是哪裡出問題了
12:49:22,076 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could NOT find resource [logback.groovy]
12:49:22,078 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could NOT find resource [logback-test.xml]
12:49:22,093 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could NOT find resource [logback.xml]
12:49:22,093 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Setting up default configuration.
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
private Logger logger = LoggerFactory.getLogger("system");
private Logger loggerroot = LoggerFactory.getLogger(Job1.class);
收工....
从Log4j迁移到LogBack的理由
Chapter 1: Introduction
logback 常用配置详解
Logback-学习笔记
