Log4j 总结（六） log4j 之 WriterAppender

最新推荐文章于 2018-08-14 16:36:36 发布

原创最新推荐文章于 2018-08-14 16:36:36 发布 · 363 阅读

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本文介绍了一个自定义的日志记录器组件WriterAppender的实现方法。该组件允许将日志输出到指定的输出流或字符输出流中，并展示了如何通过设置布局和输出目的地来配置这个组件。

public class WriterAppender extends AppenderSkeleton

WriterAppender()
          This default constructor does nothing.
WriterAppender(Layout layout, java.io.OutputStream os)
          Instantiate a WriterAppender and set the output destination to a new OutputStreamWriter initialized with os as its OutputStream.
WriterAppender(Layout layout, java.io.Writer writer)
          Instantiate a WriterAppender and set the output destination to writer.

Logger logger = Logger.getLogger("WriterAppender");

SimpleLayout layout = new SimpleLayout();
//Writer w = new Writer();
WriterAppender appender = new WriterAppender(layout, w);

logger.addAppender(appender);
logger.setLevel(Level.INFO);
...