Question

我一直在尝试使用ConfigurationFactory和配置文件将log4j2日志记录发送到rsyslog服务器。 Niether方式导致输出与记录到文件相比较。

在所有情况下，我都使用log.error("test", new Throwable().fillInStackTrace());

我尝试过两种不同的方式：

使用AppenderComponentBuilder

@Plugin（name =＆＃34; CustomConfigurationFactory＆＃34;，category = ConfigurationFactory.CATEGORY） @Order（50）

公共类Log4jConfigurationFactory扩展了ConfigurationFactory {

static Configuration createConfiguration（final String name，ConfigurationBuilder builder）{

builder.setConfigurationName(name);
builder.setStatusLevel(Level.INFO);

AppenderComponentBuilder fileAppenderBuilder = builder.newAppender("logFile", FileAppender.PLUGIN_NAME)
    .addAttribute("fileName", "Audit.log");
fileAppenderBuilder.add(builder.newLayout("PatternLayout").addAttribute("pattern", "%d [%t] %-5level: %msg%n"));

KeyValuePair exc = new KeyValuePair("exception", "%ex");
AppenderComponentBuilder syslogAppenderBuilder = builder.newAppender("syslog","Syslog")
        .addAttribute("host", "example.com")
        .addAttribute("port", 512)
        .addAttribute("protocol", "TCP")
        .addAttribute( "immediateFlush", true )
        .addAttribute( "newLine", true )
        .addAttribute("reconnectionDelayMillis", 10000)

        .addAttribute( "facility", "LOCAL5" )
        .addAttribute("format", "RFC5424")
        .addAttribute("appName","audit")
        .addAttribute("includeMDC",true)
        .addAttribute("enterpriseNumber", 18060)
        .addAttribute("id", "Audit")
        .addAttribute("mdcId", "mdc")
        .addAttribute("messageId","log");
syslogAppenderBuilder.add(builder.newLayout("RFC5424Layout")
        .addAttribute("exceptionPattern", "%rThrowable{full}"));
    //    .addAttribute("LoggerFields", exc)); .. LoggerFields doesn't exist as an attribute so enabling full stack traces is impossible with the bare builder. See second attempt.


builder.add(syslogAppenderBuilder);
builder.add(fileAppenderBuilder);

builder.add(builder.newRootLogger(Level.INFO).
    add(builder.newAppenderRef("logFile")));
    add(builder.newAppenderRef("syslog")));

Configuration config = builder.build();
return config;  
}

@Override
public Configuration getConfiguration(final LoggerContext loggerContext, final ConfigurationSource source) {
    return getConfiguration(loggerContext, source.toString(), null);
}

@Override
public Configuration getConfiguration(final LoggerContext loggerContext, final String name, final URI configLocation) {
    ConfigurationBuilder<BuiltConfiguration> builder = newConfigurationBuilder();
    return createConfiguration(name, builder);
}

@Override
protected String[] getSupportedTypes() {
    return new String[] {"*"};
}

}

（第一种方法无法添加LoggerFields属性，因此它注定要失败。）它显示"ERROR test"

使用SyslogAppender.Builder

KeyValuePair[] exc = new KeyValuePair[4];
    exc[0] = new KeyValuePair("exception", "%ex");
    exc[1] = new KeyValuePair("thread", "%t");
    exc[2] = new KeyValuePair("priority", "%p");
    exc[3] = new KeyValuePair("category", "%c");
    LoggerFields[] lf = new LoggerFields[1];
    lf[0] = LoggerFields.createLoggerFields(exc, null, "18060", false);
    SyslogAppender.Builder syslogAppenderBuilder1 = SyslogAppender.newSyslogAppenderBuilder();
    syslogAppenderBuilder1.withName("syslog");
    syslogAppenderBuilder1.withHost("example.com");
    syslogAppenderBuilder1.withPort(512);
    syslogAppenderBuilder1.withProtocol(Protocol.TCP);
    syslogAppenderBuilder1.withImmediateFlush(true);
    syslogAppenderBuilder1.setNewLine(true);
    syslogAppenderBuilder1.setFacility(Facility.USER);
    syslogAppenderBuilder1.setFormat("RFC5424");
    syslogAppenderBuilder1.setAppName("Audit");
    syslogAppenderBuilder1.setIncludeMdc(true);
    syslogAppenderBuilder1.setEnterpriseNumber(18060);
    syslogAppenderBuilder1.setId("audit");
    syslogAppenderBuilder1.setMdcId("mdc");
    syslogAppenderBuilder1.setMsgId("log");
    syslogAppenderBuilder1.setExceptionPattern("%ex");
    syslogAppenderBuilder1.setLoggerFields(lf);

    builder.add(fileAppenderBuilder);
    builder.add(builder.newRootLogger(Level.INFO).
        add(builder.newAppenderRef("LogFile")));

    Configuration config = builder.build();
     config.getRootLogger().addAppender(syslogAppenderBuilder1.build(), Level.INFO, null);
    return config;

这样只会显示"e"或"n"

第三，我放弃了，决定使用带有UDP的配置文件：

＆＃13;

<Configuration>
  <Appenders>
    <Syslog name="syslog" format="RFC5424" host="example.com" port="512" protocol="UDP" appName="Audit" newLine="true" immediateFlush="true" includeMDC="true" mdcId="mdc" facility="LOCAL5" enterpriseNumber="18060" messageId="log" id="audit" charset="UTF-8">
      <LoggerFields>
        <KeyValuePair key="thread" value="%t" />
        <KeyValuePair key="priority" value="%p" />
        <KeyValuePair key="category" value="%c" />
        <KeyValuePair key="exception" value="%rThrowable{full}" />
      </LoggerFields>
      <ExceptionPattern>%rThrowable{full}</ExceptionPattern>
    </Syslog>
    <RollingRandomAccessFile name="file" fileName="logs/Audit.log" filePattern="logs/$${date:yyyy-MM}/app-%d{yyyy-MM-dd}-%i.log">
      <Policies>
        <TimeBasedTriggeringPolicy interval="1" />
      </Policies>
    </RollingRandomAccessFile>
  </Appenders>
  <Loggers>
    <Root level="info">
      <AppenderRef ref="syslog" />
      <AppenderRef ref="file" />
    </Root>
  </Loggers>
</Configuration>

＆＃13;

这导致以下日志输出：测试＃012java.lang.Throwable＃012＃011at main（main.java:5）[main.jar：？]＃012

我认为＃012是新行，并且没有像它应该那样处理。

似乎没有一种将日志发送到rsyslog的完美方式。任何解决方案？

似乎不是使用TCP或AppenderComponentBuilder在log4j2中通过syslogappender发送完整堆栈跟踪的方法

0 个答案: