Log4JMetricsFileWriter.java 文件源码

@Override
public void write(String loggerName, String filePrefix, String content) {
  RollingFileAppender logger = fileAppenders.computeIfAbsent(loggerName, f -> initLogger(loggerName, filePrefix));
  LoggingEvent event = new LoggingEvent(loggerName, Logger.getLogger(loggerName), Level.ALL,
      content, null);
  logger.append(event);
}