最新的spring-rabbit不支持编码标签？

Question

我对此有一个问题，我将把logback日志发送给rabbit，我使用spring-rabbit，因为我需要发送json格式的数据，所以我使用了LoggingEventCompositeJsonEncoder，这是我的配置

<appender name="AMQP" class="org.springframework.amqp.rabbit.logback.AmqpAppender">
    <!--<layout>-->
    <!--<pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n</pattern>-->
    <!--</layout>-->
    <encoder class="net.logstash.logback.encoder.LoggingEventCompositeJsonEncoder">
        <pattern>
            <pattern>
                { "level": "%level" }
            </pattern>
        </pattern>
    </encoder>
    <host>127.0.0.1</host>
    <port>5672</port>
    <username>guest</username>
    <password>guest</password>
    <routingKeyPattern>testroute</routingKeyPattern>
    <exchangeName>logs</exchangeName>

    <declareExchange>true</declareExchange>
    <generateId>true</generateId>
    <charset>UTF-8</charset>
    <durable>true</durable>
    <deliveryMode>PERSISTENT</deliveryMode>

</appender>

但是当我启动应用程序时，我得到了如下错误：

 java.lang.IllegalStateException: Logback configuration error detected: ERROR in ch.qos.logback.core.joran.spi.Interpreter@16:88 - no applicable action for [encoder], current ElementPath  is [[configuration][appender][encoder]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@18:22 - no applicable action for [pattern], current ElementPath  is [[configuration][appender][encoder][pattern]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@19:26 - no applicable action for [pattern], current ElementPath  is [[configuration][appender][encoder][pattern][pattern]]
    at org.springframework.boot.logging.logback.LogbackLoggingSystem.loadConfiguration(LogbackLoggingSystem.java:162)
    at org.springframework.boot.logging.AbstractLoggingSystem.initializeWithConventions(AbstractLoggingSystem.java:81)
    at org.springframework.boot.logging.AbstractLoggingSystem.initialize(AbstractLoggingSystem.java:59)
    at org.springframework.boot.logging.logback.LogbackLoggingSystem.initialize(LogbackLoggingSystem.java:115)
    at org.springframework.boot.logging.LoggingApplicationListener.initializeSystem(LoggingApplicationListener.java:303)
    at org.springframework.boot.logging.LoggingApplicationListener.initialize(LoggingApplicationListener.java:276)
    at org.springframework.boot.logging.LoggingApplicationListener.onApplicationEnvironmentPreparedEvent(LoggingApplicationListener.java:239)
    at org.springframework.boot.logging.LoggingApplicationListener.onApplicationEvent(LoggingApplicationListener.java:212)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:167)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:122)
    at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:74)
    at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:54)
    at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:325)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:296)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118)

Answer 1

没错，org.springframework.amqp.rabbit.logback.AmqpAppender是AppenderBase扩展，而不是支持encoder选项OutputStreamAppender。

然而，我非常确定我们可以添加对它的支持，而不是已经this.encoder.encode(event)的原始msgBody.getBytes()调用。

在这件事上的JIRA：https://jira.spring.io/browse/AMQP-760。