Logback 将不同的消息记录到两个文件中 [英] Logback to log different messages to two files

问题描述

我正在使用 logback/slf4j 进行日志记录.我想解析我的日志文件来分析一些数据，所以我想要有两个记录器实例，每个记录到一个单独的文件，而不是解析一个大文件(主要由调试语句组成)；一种用于分析，一种用于所有用途的日志记录.有谁知道这是否可以通过 Logback 或任何其他记录器实现?

I am using logback/slf4j to do my logging. I want to parse my log file to analyze some data, so instead of parsing a great big file (mostly consisting of debug statements) I want to have two logger instances which each log to a separate file; one for analytics and one for all purpose logging. Does anyone know if this is possible with Logback, or any other logger for that matter?

推荐答案

在 logback 中很可能做这样的事情.这是一个示例配置:

It's very possible to do something like this in logback. Here's an example configuration:

<?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，您需要设置两个独立的记录器，一个用于所有内容，另一个用于记录分析数据，如下所示:

Then you'd setup two separate loggers, one for everything and one to log analytics data like so:

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

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