logback日志配置文件代码示例

<?xml version="1.0" encoding="UTF-8"?>
<configuration scan="true" scanPeriod="30 seconds">
    <contextName>server</contextName>
    <!--日志路径  -->
    <property name="LOG_HOME" value="${LOG_HOME}" />

    <!-- 日志文件输出  -->
    <appender name="rollingFileOut" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <Encoding>UTF-8</Encoding>
        <prudent>true</prudent>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>${LOG_HOME}/auto-%d{yyyy-MM-dd}.%i.log</fileNamePattern>
            <maxHistory>30</maxHistory>
            <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                <maxFileSize>10MB</maxFileSize>
            </timeBasedFileNamingAndTriggeringPolicy><!--  -->
            <!-- <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
                 <MaxFileSize>0.1MB</MaxFileSize>
            </triggeringPolicy> -->

        </rollingPolicy>  

        <encoder><!-- 暂时先使用原有格式 -->
            <pattern>%date %level [%thread] %logger.%class{0}#%method [%file:%line] %msg%n</pattern>
            <charset>GBK</charset>
        </encoder>
    </appender>  

    <!-- 定义控制台输出 -->
    <appender name="consoleOut" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>%date %level [%thread] %logger.%class{0}#%method [%file:%line] %msg%n</pattern>
        </encoder>
    </appender>

    <!-- <logger name="App">
        <appender-ref ref="rollingFileOut" />
    </logger>  -->

    <logger name="org.apache.ibatis.io.ResolverUtil" level="WARN"/>
    <logger name="org.mybatis.spring.SqlSessionUtils" level="WARN"/>
    <logger name="org.mybatis.spring.SqlSessionFactoryBean" level="WARN"/>
    <logger name="org.mybatis.spring.transaction.SpringManagedTransaction" level="WARN"/>
    <logger name="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping" level="WARN"/>
    <logger name="org.springframework.jdbc.datasource.DataSourceTransactionManager" level="WARN"/>
    <logger name="org.springframework.jdbc.datasource.DataSourceUtils" level="WARN"/>
    <logger name="org.springframework.scheduling.quartz.LocalDataSourceJobStore" level="WARN"/>
    <logger name="org.quartz.impl.jdbcjobstore.StdRowLockSemaphore" level="WARN"/>
    <logger name="org.apache.http.wire" level="WARN"/>

    <root level="debug"><!-- TRACE, DEBUG, INFO, WARN, ERROR, ALL, OFF -->
        <appender-ref ref="consoleOut" /> <!--部署到服务器上时要注释掉 -->
        <appender-ref ref="rollingFileOut" />
    </root>  

</configuration>  

优点：可以打印输出debug级别的sql语句等信息，而过滤掉一些jar包的无关日志(level="WARN")，避免日志文件过于庞大。