Java使用logback记录日志时分级别保存文件

说明：一般情况下logback可以指定类使用什么样的级别显示输出日志，并且同一类可以指定不能级别，然后对应级别进行输出日志。

第一种配置：

<?xml version="1.0" encoding="UTF-8"?>

<configuration>

    <!-- 定义log 文件的 home 目录  -->

    <property name="LOG_HOME"  value="C:/Users/Administrator/Desktop/logs"></property>

    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">

        <encoder>

            <!-- %.-1level 只显示信息级别的首字母,%-5level 左对齐显示信息级别全称 -->

            <Pattern>[%date{yyyy-MM-dd HH:mm:ss}] [%-5level] --%mdc{client} %msg%n</Pattern>

        </encoder>

    </appender>

    <appender name="TRACE_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">

        <encoding>UTF-8</encoding>

        <file>${LOG_HOME}/trace.log</file>

        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">

            <FileNamePattern>logs/trace.%d{yyyy-MM-dd}.log</FileNamePattern>

        </rollingPolicy>

        <layout>

            <pattern>[%date{yyyy-MM-dd HH:mm:ss}] [%-5level] [%logger:%line] --%mdc{client} %msg%n</pattern>

        </layout>

       <!--  <filter class="ch.qos.logback.classic.filter.LevelFilter">

            <level>TRACE</level>

            <onMatch>ACCEPT</onMatch>

            <onMismatch>DENY</onMismatch>

           </filter>  -->

    </appender>

     <appender name="INFO_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">

        <encoding>UTF-8</encoding>

        <file>${LOG_HOME}/info.log</file>

        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">

            <FileNamePattern>logs/info.%d{yyyy-MM-dd}.log</FileNamePattern>

        </rollingPolicy>

        <layout>

            <pattern>[%date{yyyy-MM-dd HH:mm:ss}] [%-5level] [%logger:%line] --%mdc{client} %msg%n</pattern>

        </layout>

        <filter class="ch.qos.logback.classic.filter.LevelFilter">

            <level>INFO</level>

            <onMatch>ACCEPT</onMatch>

            <onMismatch>DENY</onMismatch>

           </filter>

    </appender>

      <appender name="DEBUG_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">

        <encoding>UTF-8</encoding>

        <file>${LOG_HOME}/debug.log</file>

        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">

            <FileNamePattern>logs/debug.%d{yyyy-MM-dd}.log</FileNamePattern>

        </rollingPolicy>

        <layout>

            <pattern>[%date{yyyy-MM-dd HH:mm:ss}] [%-5level] [%logger:%line] --%mdc{client} %msg%n</pattern>

        </layout>

         <filter class="ch.qos.logback.classic.filter.LevelFilter">

            <level>DEBUG</level>

            <onMatch>ACCEPT</onMatch>

            <onMismatch>DENY</onMismatch>

           </filter>

    </appender>

     <appender name="WARN_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">

        <encoding>UTF-8</encoding>

        <file>${LOG_HOME}/warn.log</file>

        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">

            <FileNamePattern>logs/warn.%d{yyyy-MM-dd}.log</FileNamePattern>

        </rollingPolicy>

        <layout>

            <pattern>[%date{yyyy-MM-dd HH:mm:ss}] [%-5level] [%logger:%line] --%mdc{client} %msg%n</pattern>

        </layout>

         <filter class="ch.qos.logback.classic.filter.LevelFilter">

            <level>WARN</level>

            <onMatch>ACCEPT</onMatch>

            <onMismatch>DENY</onMismatch>

           </filter>

    </appender>

     <appender name="ERROR_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">

        <encoding>UTF-8</encoding>

        <file>${LOG_HOME}/error.log</file>

        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">

            <FileNamePattern>logs/error.%d{yyyy-MM-dd}.log</FileNamePattern>

        </rollingPolicy>

        <layout>

            <pattern>[%date{yyyy-MM-dd HH:mm:ss}] [%-5level] [%logger:%line] --%mdc{client} %msg%n</pattern>

        </layout>

         <filter class="ch.qos.logback.classic.filter.LevelFilter">

            <level>ERROR</level>

            <onMatch>ACCEPT</onMatch>

            <onMismatch>DENY</onMismatch>

           </filter>

    </appender>

   <!--  <logger name="com.mchange" level="INFO"/>

    <logger name="org.springframework" level="WARN"/>

    <logger name="java.sql.Connection" level="DEBUG"/>

    <logger name="java.sql.ResultSet" level="INFO"/>

    <logger name="com.boaotech.util" level="DEBUG"/>  -->

    <root level="TRACE">

        <appender-ref ref="STDOUT"/>

        <appender-ref ref="TRACE_FILE" />

           <appender-ref ref="INFO_FILE" />

          <appender-ref ref="DEBUG_FILE" />

         <appender-ref ref="WARN_FILE" />

          <appender-ref ref="ERROR_FILE" />

    </root>

</configuration>

第二种配置：

<?xml version="1.0" encoding="UTF-8"?>

<configuration>

    <!--定义日志文件的存储地址 勿在 LogBack 的配置中使用相对路径-->

    <property name="LOG_HOME" value="c:/log" />

    <!-- 控制台输出 -->

    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">

       <!-- 日志输出编码 -->

       <Encoding>UTF-8</Encoding>

        <layout class="ch.qos.logback.classic.PatternLayout">

             <!--格式化输出：%d表示日期，%thread表示线程名，%-5level：级别从左显示5个字符宽度%msg：日志消息，%n是换行符-->

            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n

            </pattern>

        </layout>

    </appender>

    <!-- 按照每天生成日志文件 -->

    <appender name="FILE"  class="ch.qos.logback.core.rolling.RollingFileAppender">

        <Encoding>UTF-8</Encoding>

        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">

            <!--日志文件输出的文件名-->

            <FileNamePattern>${LOG_HOME}/myApp.log.%d{yyyy-MM-dd}.log</FileNamePattern>

            <MaxHistory>30</MaxHistory>

        </rollingPolicy>

        <layout class="ch.qos.logback.classic.PatternLayout">

            <!--格式化输出：%d表示日期，%thread表示线程名，%-5level：级别从左显示5个字符宽度%msg：日志消息，%n是换行符-->

            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n

            </pattern>

       </layout>

        <!--日志文件最大的大小-->

       <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">

         <MaxFileSize>10MB</MaxFileSize>

       </triggeringPolicy>

    </appender>

   <!-- show parameters for hibernate sql 专为 Hibernate 定制 -->

    <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" />

    <!-- 日志输出级别 -->

    <root level="INFO">

        <appender-ref ref="STDOUT" />

        <appender-ref ref="FILE" />

    </root>

     <!--日志异步到数据库 -->

    <appender name="DB" class="ch.qos.logback.classic.db.DBAppender">

        <!--日志异步到数据库 -->

        <connectionSource class="ch.qos.logback.core.db.DriverManagerConnectionSource">

           <!--连接池 -->

           <dataSource class="com.mchange.v2.c3p0.ComboPooledDataSource">

              <driverClass>com.mysql.jdbc.Driver</driverClass>

              <url>jdbc:mysql://127.0.0.1:3306/databaseName</url>

              <user>root</user>

              <password>root</password>

            </dataSource>

        </connectionSource>

  </appender> -->

</configuration>

参考：

http://www.cnblogs.com/dragonflyyi/p/4245250.html（以上部分内容转自此篇文章）