如何在文件 logback spring 引导中排除错误日志级别

Question

我有一个 spring 启动应用程序（spring-boot-starter-parent --> 2.3.0.RELEASE），我正在执行日志。

基本上我想要实现的是我有 2 个日志文件，一个 bridgeError.log 只包含错误消息，另一个 bridge.log 包含所有日志级别除了 错误级别 因为它正在记录在 brideError.log 文件中。

我可以创建 2 个日志文件 brideError.log，其中仅包含错误消息，但问题是 bridge.log 还包含错误消息。

请在下面找到我的 logback-spring.xml 配置：

<configuration>

    <property name="HOME_LOG" value="logs/bridge.log"/>
    <property name="HOME_LOG_ERROR" value="logs/bridgeError.log"/>


    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
        <!-- encoders are assigned the type
             ch.qos.logback.classic.encoder.PatternLayoutEncoder by default -->
        <encoder>
            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
        </encoder>
    </appender>

    <appender name="FILE-ROLLING" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${HOME_LOG}</file>

        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
            <level>DEBUG</level>
        </filter>

        <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
            <fileNamePattern>logs/archived/bridge.%d{yyyy-MM-dd}.%i.log.gz</fileNamePattern>
            <!-- each archived file, size max 10MB -->
            <maxFileSize>10MB</maxFileSize>
            <!-- total size of all archive files, if total size > 20GB, it will delete old archived file -->
            <totalSizeCap>20GB</totalSizeCap>
            <!-- 60 days to keep -->
            <maxHistory>60</maxHistory>
        </rollingPolicy>

        <encoder>
            <pattern>%d %p %c{1.} [%t] %m%n</pattern>
        </encoder>
    </appender>


    <appender name="FILE-ROLLING-ERROR" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${HOME_LOG_ERROR}</file>

        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
            <level>ERROR</level>
        </filter>

        <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
            <fileNamePattern>logs/archived/bridgeError.%d{yyyy-MM-dd}.%i.log.gz</fileNamePattern>
            <!-- each archived file, size max 10MB -->
            <maxFileSize>10MB</maxFileSize>
            <!-- total size of all archive files, if total size > 20GB, it will delete old archived file -->
            <totalSizeCap>20GB</totalSizeCap>
            <!-- 60 days to keep -->
            <maxHistory>60</maxHistory>
        </rollingPolicy>

        <encoder>
            <pattern>%d %p %c{1.} [%t] %m%n</pattern>
        </encoder>
    </appender>

    <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
        <layout class="ch.qos.logback.classic.PatternLayout">
            <Pattern>
                %d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n
            </Pattern>
        </layout>
    </appender>
  
        <logger name="com.dummy.package" level="debug" additivity="false">
            <!--        <appender-ref ref="FILE-ROLLING"/>-->
            <appender-ref ref="CONSOLE"/>
        </logger>


    <!--    <root level="error">
            <appender-ref ref="FILE-ROLLING"/>
            &lt;!&ndash;  <appender-ref ref="CONSOLE"/>&ndash;&gt;
        </root>-->

    <logger name="com.dummy.package" level="DEBUG">
        <appender-ref ref="FILE-ROLLING"/>
        <appender-ref ref="FILE-ROLLING-ERROR"/>
    </logger>

</configuration>

是否可以排除 bridge.log 文件中的错误信息？

提前致谢

Answer 1

您可以为此目的使用级别过滤器

<filter class="ch.qos.logback.classic.filter.LevelFilter">
  <level>ERROR</level>
  <onMatch>DENY</onMatch>
  <onMismatch>ACCEPT</onMismatch>
</filter>

文档：http://logback.qos.ch/manual/filters.html

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