Spring Boot中特定软件包的自定义日志文件 [英] Custom log file for specific packages in Spring boot

问题描述

我有一个带有专门操作的Java包.从某种意义上讲，它们很少使用，并且我不想让它们与常规日志记录混在一起.

I have a java package with specialized operations. Specialized in the sense that they are rarely used and i don't want to have them be mixed with normal logging.

我知道添加logging.file=myapplication.log会将日志记录重定向到该文件，但是是否有办法仅指定从特定程序包到另一个文件的日志记录?像logging.file.my.package=special.log吗?

I know that adding logging.file=myapplication.log will redirect the logging to this file but is there a way to specify only logging from specific packages to another file? Like logging.file.my.package=special.log ?

推荐答案

Spring使用Logback作为默认记录器.根据官方文档，您可以自行设置 logback.xml ，以将特殊"行为添加到默认日志记录机制中:

Spring uses Logback as default logger. According to the official doc you can setup logback.xml yourself to add to the default logging mechanism your 'special' behavior:

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <include resource="org/springframework/boot/logging/logback/defaults.xml" />
    <property name="LOG_FILE" value="${LOG_FILE:-${LOG_PATH:-${LOG_TEMP:-${java.io.tmpdir:-/tmp}}/}spring.log}"/>

    <include resource="org/springframework/boot/logging/logback/file-appender.xml" />
    <include resource="org/springframework/boot/logging/logback/console-appender.xml" />

    <property name="SPECIAL_FILE_NAME" value="special"/>
    <appender name="SPECIAL_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <encoder>
            <pattern>%date{yyyy-MM-dd HH:mm:ss.SSS} [%-10.10thread] %-5level %30.30logger{29}:%-4line %msg%n</pattern>
            <charset>utf8</charset>
        </encoder>
        <file>logs/${SPECIAL_FILE_NAME}.log</file>
        <rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
            <fileNamePattern>logs/${SPECIAL_FILE_NAME}-%i.log</fileNamePattern>
        </rollingPolicy>
        <triggeringPolicy
                class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
            <MaxFileSize>10MB</MaxFileSize>
        </triggeringPolicy>
    </appender>

    <logger name="logging.file.my.package" level="debug" additivity="false">
        <appender-ref ref="SPECIAL_FILE"/>
    </logger>

    <root level="INFO">
        <appender-ref ref="FILE" />
        <appender-ref ref="CONSOLE" />
    </root>
</configuration>

在这里，我们使用Spring默认的FILE和CONSOLE附加程序照常记录应用程序信息(logging.file.my.package除外)，并使用SPECIAL_FILE附加程序将信息从该程序包记录到文件log/special.log.

Here we use Spring default FILE and CONSOLE appenders to log app info as usual (except logging.file.my.package), and use SPECIAL_FILE appender to log info from this package to file log/special.log.

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