关于日志文件的使用

<dependency>
			<groupId>ch.qos.logback</groupId>
			<artifactId>logback-classic</artifactId>
			<version>1.2.1</version>
</dependency>

logback.xml配置，按天数打包： 

<?xml version="1.0" encoding="UTF-8"?>
<configuration scan="true" scanPeriod="60 seconds" debug="false">
<!-- 定义参数常量 -->
<!-- trace<debug<info<warn<error -->
<property name="log.level" value="debug" />
<!-- 保存30天的日志 -->
<property name="log.maxHistory" value="30"/>
<property name="log.filePath" value="${catalina.base}/logs/webapps" />
<property name="log.pattern" value="%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{55} -%msg%n"/>

<!-- 控制台设置 -->
<appender name="consoleAppender" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>${log.pattern}</pattern>
</encoder>
</appender>

<!-- DEBUG -->
<appender name="debugAppender" class="ch.qos.logback.core.rolling.RollingFileAppender">
<!-- 文件路径 -->
<file>${log.filePath}/debug.log</file>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<!-- 文件名称 -->
<fileNamePattern>${log.filePath}/debug/debug.%d{yyyy-MM-dd}.log.gz</fileNamePattern>
<!-- 文件最大历史保存数量 -->
<maxHistory>${log.maxHistory}</maxHistory>
</rollingPolicy>
<encoder>
<pattern>${log.pattern}</pattern>
</encoder>
<filter class="ch.qos.logback.classic.filter.LevelFilter">
<level>DEBUG</level>
<onMatch>ACCEPT</onMatch>
<onMismatch>DENY</onMismatch>
</filter>
</appender>

<!-- INFO -->
<appender name="infoAppender" class="ch.qos.logback.core.rolling.RollingFileAppender">
<!-- 文件路径 -->
<file>${log.filePath}/info.log</file>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<!-- 文件名称 -->
<fileNamePattern>${log.filePath}/info/info.%d{yyyy-MM-dd}.log.gz</fileNamePattern>
<!-- 文件最大历史保存数量 -->
<maxHistory>${log.maxHistory}</maxHistory>
</rollingPolicy>
<encoder>
<pattern>${log.pattern}</pattern>
</encoder>
<filter class="ch.qos.logback.classic.filter.LevelFilter">
<level>INFO</level>
<onMatch>ACCEPT</onMatch>
<onMismatch>DENY</onMismatch>
</filter>
</appender>

<!-- ERROR -->
<appender name="errorAppender" class="ch.qos.logback.core.rolling.RollingFileAppender">
<!-- 文件路径 -->
<file>${log.filePath}/error.log</file>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<!-- 文件名称 -->
<fileNamePattern>${log.filePath}/error/error.%d{yyyy-MM-dd}.log.gz</fileNamePattern>
<!-- 文件最大历史保存数量 -->
<maxHistory>${log.maxHistory}</maxHistory>
</rollingPolicy>
<encoder>
<pattern>${log.pattern}</pattern>
</encoder>
<filter class="ch.qos.logback.classic.filter.LevelFilter">
<level>ERROR</level>
<onMatch>ACCEPT</onMatch>
<onMismatch>DENY</onMismatch>
</filter>
</appender>


<logger name="me.lpzz.o2o" level="${log.level}">
<appender-ref ref="debugAppender"/>
<appender-ref ref="infoAppender"/>
<appender-ref ref="errorAppender"/>
</logger>

<root level="info">
<appender-ref ref="consoleAppender"/>
</root>

</configuration>

使用：

private static  Logger logger=LoggerFactory.getLogger(this.class);
...
...
logger.error(e.getMessage());
logger.info(...);
...