如何在 Logback 中使用 JSON appender？答案

【问题标题】：How to use JSON appender in Logback?如何在 Logback 中使用 JSON appender？
【发布时间】：2018-09-16 03:54:49
【问题描述】：

我正在尝试以 JSON 格式输出我的所有日志事件。

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
    <encoder class="net.logstash.logback.encoder.LoggingEventCompositeJsonEncoder">
        <pattern>%d{yyyy-MM-dd'T'HH:mm:ss.SSSZ} [%thread] %-5level %logger{36} - %msg%n</pattern>
    </encoder>
</appender>
<root level="INFO">
    <!--<appender-ref ref="kafkaAppender" />-->
    <appender-ref ref="STDOUT" />
</root>

Maven 依赖：

   <dependency>
        <groupId>net.logstash.logback</groupId>
        <artifactId>logstash-logback-encoder</artifactId>
        <version>4.7</version>
    </dependency>

我在运行此配置时看到错误。我错过了什么吗？

这里是堆栈跟踪：

Exception in thread "main" java.lang.AbstractMethodError: net.logstash.logback.encoder.LoggingEventCompositeJsonEncoder.headerBytes()[B
at ch.qos.logback.core.OutputStreamAppender.encoderInit(OutputStreamAppender.java:180)
at ch.qos.logback.core.OutputStreamAppender.setOutputStream(OutputStreamAppender.java:171)
at ch.qos.logback.core.ConsoleAppender.start(ConsoleAppender.java:81)
at ch.qos.logback.core.joran.action.AppenderAction.end(AppenderAction.java:90)
at ch.qos.logback.core.joran.spi.Interpreter.callEndAction(Interpreter.java:309)
at ch.qos.logback.core.joran.spi.Interpreter.endElement(Interpreter.java:193)
at ch.qos.logback.core.joran.spi.Interpreter.endElement(Interpreter.java:179)
at ch.qos.logback.core.joran.spi.EventPlayer.play(EventPlayer.java:62)
at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:165)
at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:152)
at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:110)
at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:53)
at ch.qos.logback.classic.util.ContextInitializer.configureByResource(ContextInitializer.java:75)
at ch.qos.logback.classic.util.ContextInitializer.autoConfig(ContextInitializer.java:150)
at org.slf4j.impl.StaticLoggerBinder.init(StaticLoggerBinder.java:84)
at org.slf4j.impl.StaticLoggerBinder.<clinit>(StaticLoggerBinder.java:55)
at org.slf4j.LoggerFactory.bind(LoggerFactory.java:150)
at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:124)
at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:412)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:357)
at org.apache.commons.logging.impl.SLF4JLogFactory.getInstance(SLF4JLogFactory.java:155)
at org.apache.commons.logging.impl.SLF4JLogFactory.getInstance(SLF4JLogFactory.java:132)
at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:273)

【问题讨论】：

标签： logback logstash-logback-encoder

【解决方案1】：

我在使用 4.7 版本的 logstash-logback-encoder 时遇到了同样的错误，升级到 4.11 解决了这个问题。

参考-https://github.com/thumbtack/becquerel/issues/2

【讨论】：