我正在使用 log4j 2.0-beta9。我有一个关于 SMTP 附加程序的问题。我需要配置主题,从属性值到属性值。我正在记录一个 MapMessage,我的配置如下 -
<?xml version="1.0" encoding="UTF-8"?>
<configuration status="DEBUG">
<appenders>
<Console name="Console" target="SYSTEM_OUT">
<PatternLayout pattern="%d [%t] %-5p %c - %m%n"/>
</Console>
<SMTP name="Mail" subject="Error Log for ${env:HOSTNAME}" to="${sys:mail.to}" from="${sys:mail.from}"
smtpHost="${sys:mail.host}" smtpPort="${sys:mail.port}" smtpDebug="true" bufferSize="1">
<PatternLayout>
<pattern>%d [%t] %-5p %c - %m%n</pattern>
</PatternLayout>
</SMTP>
<Async name="AsyncMail">
<appender-ref ref="Mail" />
</Async>
</appenders>
<loggers>
<root level="info">
<appender-ref ref="Console"/>
<appender-ref ref="AsyncMail">
<MapFilter onMatch="ACCEPT" onMismatch="DENY">
<KeyValuePair key="throwable.class" value="java.lang.RuntimeException" />
</MapFilter>
</appender-ref>
</root>
</loggers>
</configuration>
// Java Code to log the msg
Throwable throwable; // this is the exception that is thrown by the app.
MapMessage message = new MapMessage();
message.put("throwable.message", throwable.getMessage());
message.put("throwable.class", throwable.getClass().getName());
message.put("throwable.stacktrace", ExceptionUtils.getStackTrace(throwable)); // ExceptionUtils from apache-commons
LOGGER.error(message, throwable); // org.apache.logging.log4j.Logger
问题是这些值都没有被动态替换。有没有办法做到这一点?
提前致谢。