通过log4j.xml设置ThrowableRenderer

Question

I need to set up a custom stacktrace format with log4j . If I use log4j property log4j.throwableRenderer=package.ThrowableRenderer everything works fine. How can I accomplish the same with log4j.xml format? The only article I found with both log4j.xml format and ThrowableRendered is here .But this doesn't work. The property isn't setting to logger and breakpoints don't work in debug too.

<?xml version="1.0" encoding="UTF-8"?>
<Configuration strict="true" status="info">
    <ThrowableRenderer class="package.ThrowableRenderer"/>
    <Appenders>
        <Appender filePattern="file{yyyy-MM-dd}.log"
                  fileName="file.log" name="logfile" type="RollingFile">
            <Layout type="PatternLayout">
                <Pattern>%d{HH:mm:ss,SSS}- %m%n</Pattern>
            </Layout>
            <Policies>
                <TimeBasedTriggeringPolicy modulate="false" interval="1"/>
            </Policies>
        </Appender>
    </Appenders>
    <Loggers>
         ...
    </Loggers>
</Configuration>

How do I set the ThrowableRenderer with log4j.xml or where I can find the documentation to read about it?

Best regards,

Answer 1

It turned out that log4j doesn't support ThrowableRenderer. Instead you can extend ThrowablePatternConverter and create a new ConverterKey . Afterwords just add the key to the convertorPattern like

<Pattern>%d{HH:mm:ss} %m%n%YOUR_CREATED_KEY</Pattern>