如何刷新缓冲的log4j FileAppender？
如何刷新缓冲的log4j FileAppender？
提问于 2010-06-17 17:03:26
在log4j中，当使用具有BufferedIO=true和BufferSize=xxx属性(即启用了缓冲)的FileAppender时，我希望能够在正常关闭过程中刷新日志。你有什么建议吗？
回答 8
Stack Overflow用户
回答已采纳
发布于 2010-07-06 23:38:09
public static void flushAllLogs()
{
try
{
Set<FileAppender> flushedFileAppenders = new HashSet<FileAppender>();
Enumeration currentLoggers = LogManager.getLoggerRepository().getCurrentLoggers();
while(currentLoggers.hasMoreElements())
{
Object nextLogger = currentLoggers.nextElement();
if(nextLogger instanceof Logger)
{
Logger currentLogger = (Logger) nextLogger;
Enumeration allAppenders = currentLogger.getAllAppenders();
while(allAppenders.hasMoreElements())
{
Object nextElement = allAppenders.nextElement();
if(nextElement instanceof FileAppender)
{
FileAppender fileAppender = (FileAppender) nextElement;
if(!flushedFileAppenders.contains(fileAppender) && !fileAppender.getImmediateFlush())
{
flushedFileAppenders.add(fileAppender);
//log.info("Appender "+fileAppender.getName()+" is not doing immediateFlush ");
fileAppender.setImmediateFlush(true);
currentLogger.info("FLUSH");
fileAppender.setImmediateFlush(false);
}
else
{
//log.info("fileAppender"+fileAppender.getName()+" is doing immediateFlush");
}
}
}
}
}
}
catch(RuntimeException e)
{
log.error("Failed flushing logs",e);
}
}Stack Overflow用户
发布于 2010-06-20 14:05:44
关闭LogManager时：
LogManager.shutdown();所有缓冲的日志都会被刷新。
Stack Overflow用户
发布于 2017-07-01 01:42:15
public static void flushAll() {
final LoggerContext logCtx = ((LoggerContext) LogManager.getContext());
for(final org.apache.logging.log4j.core.Logger logger : logCtx.getLoggers()) {
for(final Appender appender : logger.getAppenders().values()) {
if(appender instanceof AbstractOutputStreamAppender) {
((AbstractOutputStreamAppender) appender).getManager().flush();
}
}
}
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/3060240
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