Logback 将不同的消息记录到两个文件中

在 logback 中做这样的事情是很有可能的。这是一个示例配置：

<?xml version="1.0"?>
<configuration>
    <appender name="FILE" class="ch.qos.logback.core.FileAppender">
        <file>logfile.log</file>
        <append>true</append>
        <encoder>
            <pattern>%-4relative [%thread] %-5level %logger{35} - %msg %n</pattern>
        </encoder>
    </appender>
    <appender name="ANALYTICS-FILE" class="ch.qos.logback.core.FileAppender">
        <file>analytics.log</file>
        <append>true</append>
        <encoder>
            <pattern>%-4relative [%thread] %-5level %logger{35} - %msg %n</pattern>
        </encoder>
    </appender>
    <!-- additivity=false ensures analytics data only goes to the analytics log -->
    <logger name="analytics" level="DEBUG" additivity="false">
        <appender-ref ref="ANALYTICS-FILE"/>
    </logger>
    <root>
        <appender-ref ref="FILE"/>
    </root>
</configuration>

然后，您将设置两个单独的记录器，一个用于所有内容，一个用于记录分析数据，如下所示：

Logger analytics = LoggerFactory.getLogger("analytics");

您可以拥有任意数量的记录器。但是，最好为每个需要以不同方式记录的包都有一个。然后该包及其子包中的所有类都将获得该特定记录器。他们都可以共享根记录器并使用 additivity="true" 将他们的日志数据发送到根记录器附加程序。这是一个例子：

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

<property name="pattern" value="%date{HH:mm:ss.SSS} %-5p %logger{36} 
%X{akkaSource} [%file:%line] - %m%n" />

<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
    <encoder>
        <pattern>%date{HH:mm:ss.SSS} %-5p %logger{36} %X{akkaSource} [%file:%line] - %m%n</pattern>
    </encoder>
</appender>

<appender name="abc" class="ch.qos.logback.core.rolling.RollingFileAppender">
    <file>${catalina.base}/logs/worker.log</file>
    <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
        <fileNamePattern>${catalina.base}/logs/worker-%d{yyyy-MM-dd_HH}.log</fileNamePattern>
        <maxHistory>360</maxHistory>
    </rollingPolicy>
    <encoder>
        <pattern>${pattern}</pattern>
    </encoder>
</appender>

<appender name="xyz" class="ch.qos.logback.core.rolling.RollingFileAppender">
    <file>${catalina.base}/logs/transformer.log</file>
    <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
        <fileNamePattern>${catalina.base}/logs/transformer-%d{yyyy-MM-dd_HH}.log</fileNamePattern>
        <maxHistory>360</maxHistory>
    </rollingPolicy>
    <encoder>
        <pattern>${pattern}</pattern>
    </encoder>
</appender>

<logger name="com.xxx.yyy.zzz" level="INFO" additivity="true">
    <appender-ref ref="xyz"/>
</logger>

<logger name="com.aaa.bbb.ccc" level="INFO" additivity="true">
    <appender-ref ref="abc"/>
</logger>

<root>
    <level value="INFO" />
    <appender-ref ref="STDOUT" />
</root>

就我而言，我想将类名保留为日志名

private static final Logger log = LoggerFactory.getLogger(ScheduledPost.class);

由于我很少有这样的课程，所以我的 logback.xml

<!--additivity=false ensures this log data only goes to the this log, and no one more -->
<logger name="xxx.xxx.xxx.ScheduledPost" level="DEBUG" additivity="false">
    <appender-ref ref="ASYNC_SCHEDULE_LOG_FILE"/>
</logger>
<logger name="xxx.xxx.xxx.GcmPost" level="DEBUG" additivity="false">
    <appender-ref ref="ASYNC_SCHEDULE_LOG_FILE"/>
</logger>
<logger name="xxx.xxx.xxx.PushUtils" level="DEBUG" additivity="false">
    <appender-ref ref="ASYNC_SCHEDULE_LOG_FILE"/>
</logger>