日志返回AsyncAppender未将日志写入基础追加程序

Question

在我的应用程序的logback.xml中，我有一个AsyncAppender定义如下。

<appender name="socketAppender" class="ch.qos.logback.classic.net.SocketAppender">
    <param name="RemoteHost" value="127.0.0.1" />
    <param name="Port" value="15000" />
    <param name="ReconnectionDelay" value="10" />
    <param name="Threshold" value="DEBUG" />
</appender>
<appender name="appLog" class="ch.qos.logback.core.rolling.RollingFileAppender">
    <file>logs/myApp.log</file>
    <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
        <fileNamePattern>logs/myApp.%d{yyyyMMdd.HH}00.log</fileNamePattern>
    </rollingPolicy>
    <encoder>
        <charset>UTF-8</charset>
        <pattern>[%d{yyyy/MM/dd HH:mm:ss.SSS}][%p][%c{0}] %m%n]</pattern>
    </encoder>
</appender>
<appender name="AsyncLog" class="ch.qos.logback.classic.AsyncAppender">
    <appender-ref ref="appLog" />
    <appender-ref ref="socketAppender" />
</appender>

当我在Windows10上部署Tomcat中的war时。

null

<appender name="AsyncLog" class="ch.qos.logback.classic.AsyncAppender">
    <appender-ref ref="socketAppender" />
    <appender-ref ref="appLog" />
</appender>

<discardingThreshold>0</discardingThreshold>
<queueSize>500</queueSize>

请各位专家告诉我，我在这里做错了什么？AsyncAppender是否有其他属性可以帮助修复此行为？

Answer 1

一位同事向我指出了ch.qos.logback.core.AsynCappenderBase类中的这个方法。AsyncAppender只能附加一个appender，并忽略除该appender之外添加的任何其他appender。

public void addAppender(Appender<E> newAppender) {
        if (appenderCount == 0) {
            appenderCount++;
            addInfo("Attaching appender named [" + newAppender.getName() + "] to AsyncAppender.");
            aai.addAppender(newAppender);
        } else {
            addWarn("One and only one appender may be attached to AsyncAppender.");
            addWarn("Ignoring additional appender named [" + newAppender.getName() + "]");
        }
    }