本文整理了Java中org.apache.logging.log4j.core.appender.WriterAppender类的一些代码示例，展示了WriterAppender类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。WriterAppender类的具体详情如下：
包路径：org.apache.logging.log4j.core.appender.WriterAppender
类名称：WriterAppender

WriterAppender介绍

[英]Appends log events to a Writer.
[中]将日志事件附加到写入程序。

代码示例

代码示例来源：origin: spring-projects/spring-batch

@Override
protected void setUp() throws Exception {
  super.setUp();
  Logger logger = LoggerFactory.getLogger(LogOrRethrowExceptionHandler.class);
  writer = new StringWriter();
  LoggerContext loggerContext = (LoggerContext) LogManager.getContext();
  Configuration configuration = loggerContext.getConfiguration();
  LoggerConfig rootLoggerConfig = configuration.getLoggerConfig(logger.getName());
  rootLoggerConfig.getAppenders().forEach((name, appender) -> {
    rootLoggerConfig.removeAppender(name);
  });
  Appender appender = WriterAppender.createAppender(PatternLayout.createDefaultLayout(), null, writer,"TESTWriter", false, false);
  rootLoggerConfig.addAppender(appender, org.apache.logging.log4j.Level.DEBUG, null);
}

代码示例来源：origin: info.magnolia/magnolia-core

@Before
public void setUp() throws Exception {
  // Builder uses PatternLayout.createDefaultLayout() by default, so we get exceptions
  loggerOut = new StringWriter();
  appender = WriterAppender.newBuilder()
      .setName("Slf4jSelfTestAppender")
      .setTarget(loggerOut)
      .build();
  LoggerContext context = LoggerContext.getContext(false);
  Configuration config = context.getConfiguration();
  appender.start();
  config.addAppender(appender);
  config.getRootLogger().addAppender(appender, INFO, null);
  context.updateLoggers(config);
  logger = LoggerFactory.getLogger(Slf4jSelfTest.class);
  assertThat(logger, is(instanceOf(Log4jLogger.class)));
}

代码示例来源：origin: ops4j/org.ops4j.pax.logging

layout = PatternLayout.createDefaultLayout();
return new WriterAppender(name, layout, filter, getManager(target, follow, layout), ignore);

代码示例来源：origin: ops4j/org.ops4j.pax.logging

@Override
public WriterAppender build() {
  return new WriterAppender(name, layout, filter, getManager(target, follow, layout), ignoreExceptions);
}

代码示例来源：origin: census-instrumentation/opencensus-java

private static String logWithSpanAndLog4jConfiguration(
  String log4jPattern, SpanContext spanContext, Function<Logger, Void> loggingFunction) {
 StringWriter output = new StringWriter();
 StringLayout layout = PatternLayout.newBuilder().withPattern(log4jPattern).build();
 Appender appender =
   WriterAppender.newBuilder()
     .setTarget(output)
     .setLayout(layout)
     .setName("TestAppender")
     .build();
 ((LoggerContext) LogManager.getContext(false)).updateLoggers();
 appender.start();
 logger.addAppender(appender);
 logger.setLevel(Level.ALL);
 try {
  logWithSpan(spanContext, loggingFunction, logger);
  return output.toString();
 } finally {
  logger.removeAppender(appender);
 }
}

代码示例来源：origin: igniterealtime/Openfire

String addAppender(final Writer writer) {
  final String name = "openfire-s2s-test-appender-" + StringUtils.randomString( 10 );
  final LoggerContext context = LoggerContext.getContext(false);
  final Configuration config = context.getConfiguration();
  final PatternLayout layout = PatternLayout.createDefaultLayout(config);
  final Appender appender = WriterAppender.createAppender(layout, null, writer, name, false, true);
  appender.start();
  config.addAppender(appender);
  final Level level = null;
  final Filter filter = null;
  for (final LoggerConfig loggerConfig : config.getLoggers().values()) {
    loggerConfig.addAppender(appender, level, filter);
  }
  config.getRootLogger().addAppender(appender, level, filter);
  return name;
}

代码示例来源：origin: org.apache.logging.log4j/log4j-core

private void addAppender(final Writer writer, final String writerName) {
  final LoggerContext context = LoggerContext.getContext(false);
  final Configuration config = context.getConfiguration();
  final PatternLayout layout = PatternLayout.createDefaultLayout(config);
  final Appender appender = WriterAppender.createAppender(layout, null, writer, writerName, false, true);
  appender.start();
  config.addAppender(appender);
  ConfigurationTestUtils.updateLoggers(appender, config);
}

代码示例来源：origin: apache/asterixdb

public static void start() {
  final LoggerContext context = LoggerContext.getContext(false);
  final Appender appender = WriterAppender.createAppender(null, null, new LogWriter(), "MEMORY", false, true);
  appender.start();
  final Configuration config = context.getConfiguration();
  config.addAppender(appender);
  for (final LoggerConfig loggerConfig : config.getLoggers().values()) {
    loggerConfig.addAppender(appender, null, null);
  }
  config.getRootLogger().addAppender(appender, Level.ALL, null);
  context.updateLoggers();
}

代码示例来源：origin: FINRAOS/herd

@Override
public StringWriter addLoggingWriterAppender(String appenderName)
{
  // Get the configuration
  final LoggerContext loggerContext = (LoggerContext) LogManager.getContext(false);
  final Configuration configuration = loggerContext.getConfiguration();
  // Create a string writer as part of the appender so logging will be written to it.
  StringWriter stringWriter = new StringWriter();
  // Create and start the appender with the string writer.
  Appender appender = WriterAppender.createAppender(null, null, stringWriter, appenderName, false, true);
  appender.start();
  // Add the appender to the root logger.
  configuration.getRootLogger().addAppender(appender, null, null);
  // Return the string writer.
  return stringWriter;
}