您好，我正在从 log4j 迁移到 log4j2。
在我的代码中，我发现使用了一些自定义模式类。我不确定如何在 log4j2 中实现相同的功能。
有人能帮我解决这个问题吗？
这是我正在使用的代码
public class MyPatternLayout extends PatternLayout
{
protected PatternParser createPatternParser(String pattern)
{
return new MyPatternParser(pattern);
}
}
public class MyPatternParser extends PatternParser
{
private static class MyPatternConverter extends PatternConverter
{
int type = 0;
public String convert(LoggingEvent event)
{
String converted = "";
try
{
switch (type)
{
case 33: // 'I' - Requiest Unique ID
UniqueId id = (UniqueId) ActParam.getParameter(LoggerParams.activityId);
if (id == null)
{
id = new UniqueId();
ActParam.setParameter(LoggerParams.activityId, id);
}
converted = id.getId();
break;
}
}
catch (Exception ex)
{
LogLog.error("Error processing activityId.", ex);
}
return converted;
}
MyPatternConverter(FormattingInfo formattingInfo, int type)
{
super(formattingInfo);
this.type = type;
}
}
public MyPatternParser(String pattern)
{
super(pattern);
}
protected void finalizeConverter(char c)
{
PatternConverter pc = null;
switch (c)
{
case 33:
case 53:
pc = new MyPatternConverter(formattingInfo, c);
currentLiteral.setLength(0);
addConverter(pc);
break;
default:
super.finalizeConverter(c);
break;
}
}
}
提前致谢。
在建议更改为@plugins之后，下面是我的代码。
@Plugin(name = "MyPatternLayout", category = "Converter")
@ConverterKeys(
{
"zs"
})
public class MyPatternLayout extends LogEventPatternConverter
{
protected MyPatternLayout(String name, String style)
{
super(name, style);
}
public static MyPatternLayout newInstance(String[] options)
{
return new MyPatternLayout("zs", Thread.currentThread().getName());
}
@Override
public void format(LogEvent event, StringBuilder toAppendTo)
{
toAppendTo.append(getTransactionId());
}
protected String getTransactionId()
{
String converted = "";
try
{
UniqueId id = (UniqueId) ThreadParameter.getParameter(LoggerThreadParameters.activityId);
if (id == null)
{
id = new UniqueId();
ThreadParameter.setParameter(LoggerThreadParameters.activityId, id);
}
converted = id.getId();
}
catch (Exception ex)
{
StatusLogger.getLogger().error("Error processing activityId.", ex);
}
return converted;
}
}
log4j2.xml 是：
<?xml version="1.0" encoding="UTF-8"?>
<configuration status="trace" packages="com.metavante.efd.cms.log.log4j.EFDPatternLayout">
<Appenders>
<Console name="STDOUT" target="SYSTEM_OUT">
<PatternLayout pattern="%p|%d{ISO8601}|%c|%m|%zs%n"/>
</Console>
</Appenders>
<loggers>
<Logger name="org.apache.log4j.xml" level="all" />
<root level="all">
<appender-ref ref="STDOUT" level="TRACE" />
</root>
</loggers>
</configuration>
日志中的输出如下所示。
2017-07-06 10:55:32,137 main DEBUG Initializing configuration XmlConfiguration[location=C:\eclipse\workspace\test\test.ear\test.war\WEB-INF\xml\log4j2.xml]
2017-07-06 10:55:32,152 main DEBUG Installed script engines
2017-07-06 10:55:32,652 main DEBUG Oracle Nashorn Version: 1.8.0_121, Language: ECMAScript, Threading: Not Thread Safe, Compile: true, Names: {nashorn, Nashorn, js, JS, JavaScript, javascript, ECMAScript, ecmascript}
2017-07-06 10:55:32,659 main DEBUG Took 0.005574 seconds to load 0 plugins from package com.log4j.MyPatternLayout
2017-07-06 10:55:32,659 main DEBUG PluginManager 'Core' found 112 plugins
2017-07-06 10:55:32,659 main DEBUG PluginManager 'Level' found 0 plugins
2017-07-06 10:55:32,665 main DEBUG PluginManager 'Lookup' found 13 plugins
2017-07-06 10:55:32,668 main DEBUG Building Plugin[name=layout, class=org.apache.logging.log4j.core.layout.PatternLayout].
2017-07-06 10:55:32,686 main TRACE TypeConverterRegistry initializing.
2017-07-06 10:55:32,687 main DEBUG PluginManager 'TypeConverter' found 26 plugins
2017-07-06 10:55:32,708 main DEBUG PatternLayout$Builder(pattern="%p|%d{ISO8601}|%c|%m|%zs%n", PatternSelector=null, Configuration(C:\eclipse\workspace\test\test.ear\test.war\WEB-INF\xml\log4j2.xml), Replace=null, charset="null", alwaysWriteExceptions="null", disableAnsi="null", noConsoleNoAnsi="null", header="null", footer="null")
2017-07-06 10:55:32,709 main DEBUG PluginManager 'Converter' found 41 plugins
2017-07-06 10:55:32,733 main ERROR Unrecognized format specifier [zs]
2017-07-06 10:55:32,734 main ERROR Unrecognized conversion specifier [zs] starting at position 24 in conversion pattern.
2017-07-06 10:55:32,734 main DEBUG Building Plugin[name=appender, class=org.apache.logging.log4j.core.appender.ConsoleAppender].
2017-07-06 10:55:32,748 main DEBUG ConsoleAppender$Builder(target="SYSTEM_OUT", follow="null", direct="null", bufferedIo="null", bufferSize="null", immediateFlush="null", ignoreExceptions="null", PatternLayout(%p|%d{ISO8601}|%c|%m|%zs%n), name="STDOUT", Configuration(C:\eclipse\workspace\test\test.ear\test.war\WEB-INF\xml\log4j2.xml), Filter=null)
2017-07-06 10:55:32,758 main DEBUG Jansi is not installed, cannot find org.fusesource.jansi.WindowsAnsiOutputStream
2017-07-06 10:55:32,758 main DEBUG Starting OutputStreamManager SYSTEM_OUT.false.false
2017-07-06 10:55:32,759 main DEBUG Building Plugin[name=appenders, class=org.apache.logging.log4j.core.config.AppendersPlugin].
2017-07-06 10:55:32,761 main DEBUG createAppenders(={STDOUT})
2017-07-06 10:55:32,762 main DEBUG Building Plugin[name=logger, class=org.apache.logging.log4j.core.config.LoggerConfig].
2017-07-06 10:55:32,771 main DEBUG createLogger(additivity="true", level="ALL", name="org.apache.log4j.xml", includeLocation="null", ={}, ={}, Configuration(C:\eclipse\workspace\test\test.ear\test.war\WEB-INF\xml\log4j2.xml), Filter=null)
2017-07-06 10:55:32,776 main DEBUG Building Plugin[name=appender-ref, class=org.apache.logging.log4j.core.config.AppenderRef].
2017-07-06 10:55:32,777 main DEBUG createAppenderRef(ref="STDOUT", level="TRACE", Filter=null)
2017-07-06 10:55:32,777 main DEBUG Building Plugin[name=root, class=org.apache.logging.log4j.core.config.LoggerConfig$RootLogger].
2017-07-06 10:55:32,778 main DEBUG createLogger(additivity="null", level="ALL", includeLocation="null", ={STDOUT}, ={}, Configuration(C:\eclipse\workspace\test\test.ear\test.war\WEB-INF\xml\log4j2.xml), Filter=null)
2017-07-06 10:55:32,779 main DEBUG Building Plugin[name=loggers, class=org.apache.logging.log4j.core.config.LoggersPlugin].
2017-07-06 10:55:32,781 main DEBUG createLoggers(={org.apache.log4j.xml, root})
2017-07-06 10:55:32,783 main DEBUG Configuration XmlConfiguration[location=C:\eclipse\workspace\test\test.ear\test.war\WEB-INF\xml\log4j2.xml] initialized
2017-07-06 10:55:32,783 main DEBUG Starting configuration XmlConfiguration[location=C:\eclipse\workspace\test\test.ear\test.war\WEB-INF\xml\log4j2.xml]
2017-07-06 10:55:32,784 main DEBUG Started configuration XmlConfiguration[location=C:\eclipse\workspace\test\test.ear\test.war\WEB-INF\xml\log4j2.xml] OK.
2017-07-06 10:55:32,784 main TRACE Stopping org.apache.logging.log4j.core.config.DefaultConfiguration@51931956...
2017-07-06 10:55:32,785 main TRACE DefaultConfiguration notified 1 ReliabilityStrategies that config will be stopped.
2017-07-06 10:55:32,785 main TRACE DefaultConfiguration stopping root LoggerConfig.
2017-07-06 10:55:32,785 main TRACE DefaultConfiguration notifying ReliabilityStrategies that appenders will be stopped.
2017-07-06 10:55:32,786 main TRACE DefaultConfiguration stopping remaining Appenders.
2017-07-06 10:55:32,786 main DEBUG Shutting down OutputStreamManager SYSTEM_OUT.false.false-1
2017-07-06 10:55:32,786 main DEBUG Shut down OutputStreamManager SYSTEM_OUT.false.false-1, all resources released: true
2017-07-06 10:55:32,786 main DEBUG Appender DefaultConsole-1 stopped with status true
2017-07-06 10:55:32,787 main TRACE DefaultConfiguration stopped 1 remaining Appenders.
2017-07-06 10:55:32,787 main TRACE DefaultConfiguration cleaning Appenders from 1 LoggerConfigs.
2017-07-06 10:55:32,787 main DEBUG Stopped org.apache.logging.log4j.core.config.DefaultConfiguration@51931956 OK
2017-07-06 10:55:32,790 main TRACE Reregistering MBeans after reconfigure. Selector=org.apache.logging.log4j.core.selector.ClassLoaderContextSelector@71c27ee8
2017-07-06 10:55:32,790 main TRACE Reregistering context (1/1): '18b4aac2' org.apache.logging.log4j.core.LoggerContext@3e7dd664
2017-07-06 10:55:32,791 main TRACE Unregistering but no MBeans found matching 'org.apache.logging.log4j2:type=18b4aac2'
2017-07-06 10:55:32,791 main TRACE Unregistering but no MBeans found matching 'org.apache.logging.log4j2:type=18b4aac2,component=StatusLogger'
2017-07-06 10:55:32,792 main TRACE Unregistering but no MBeans found matching 'org.apache.logging.log4j2:type=18b4aac2,component=ContextSelector'
2017-07-06 10:55:32,792 main TRACE Unregistering but no MBeans found matching 'org.apache.logging.log4j2:type=18b4aac2,component=Loggers,name=*'
2017-07-06 10:55:32,793 main TRACE Unregistering but no MBeans found matching 'org.apache.logging.log4j2:type=18b4aac2,component=Appenders,name=*'
2017-07-06 10:55:32,793 main TRACE Unregistering but no MBeans found matching 'org.apache.logging.log4j2:type=18b4aac2,component=AsyncAppenders,name=*'
2017-07-06 10:55:32,794 main TRACE Unregistering but no MBeans found matching 'org.apache.logging.log4j2:type=18b4aac2,component=AsyncLoggerRingBuffer'
2017-07-06 10:55:32,794 main TRACE Unregistering but no MBeans found matching 'org.apache.logging.log4j2:type=18b4aac2,component=Loggers,name=*,subtype=RingBuffer'
2017-07-06 10:55:32,799 main DEBUG Registering MBean org.apache.logging.log4j2:type=18b4aac2
2017-07-06 10:55:32,802 main DEBUG Registering MBean org.apache.logging.log4j2:type=18b4aac2,component=StatusLogger
2017-07-06 10:55:32,805 main DEBUG Registering MBean org.apache.logging.log4j2:type=18b4aac2,component=ContextSelector
2017-07-06 10:55:32,807 main DEBUG Registering MBean org.apache.logging.log4j2:type=18b4aac2,component=Loggers,name=
2017-07-06 10:55:32,808 main DEBUG Registering MBean org.apache.logging.log4j2:type=18b4aac2,component=Loggers,name=org.apache.log4j.xml
2017-07-06 10:55:32,812 main DEBUG Registering MBean org.apache.logging.log4j2:type=18b4aac2,component=Appenders,name=STDOUT
2017-07-06 10:55:32,818 main TRACE Using default SystemClock for timestamps.
2017-07-06 10:55:32,819 main TRACE Using DummyNanoClock for nanosecond timestamps.
2017-07-06 10:55:32,819 main DEBUG Reconfiguration complete for context[name=18b4aac2] at URI C:\eclipse\workspace\test\test.ear\test.war\WEB-INF\xml\log4j2.xml (org.apache.logging.log4j.core.LoggerContext@3e7dd664) with optional ClassLoader: null
2017-07-06 10:55:32,820 main DEBUG Shutdown hook enabled. Registering a new one.
2017-07-06 10:55:32,822 main DEBUG LoggerContext[name=18b4aac2, org.apache.logging.log4j.core.LoggerContext@3e7dd664] started OK.
DEBUG|2017-07-06T10:55:32,836|Default.com.JBossStartupClass|deleting directory: C:\eclipse\workspace\test\test.ear\test.war\WEB-INF\templates|%zs
2017-07-06 10:55:32,843 main DEBUG AsyncLogger.ThreadNameStrategy=CACHED
2017-07-06 10:55:32,843 main TRACE Using default SystemClock for timestamps.
我认为不知何故它没有找到该插件。请帮我。
注意：我正在使用 JBoss EAP 7。
当我使用 log4j2.properties 文件而不是 log2j.xml 时，它会在日志中给出不同的错误。
name=PropertiesConfig
property.filename =logs
appenders =console
appender.console.type =Console
appender.console.name =STDOUT
appender.console.layout.type =com.log4j.MyPatternLayout
appender.console.layout.pattern =%p|%d{ISO8601}|%c|%m|%zs%n
rootLogger.level =debug
rootLogger.appenderRefs =stdout
rootLogger.appenderRef.stdout.ref =STDOUT
下面是我使用 .proeprties 文件时控制台中的日志。
2017-07-06 11:02:48,374 main ERROR Unable to locate plugin type for com.metavante.efd.cms.log.log4j.EFDPatternLayout
2017-07-06 11:02:48,433 main ERROR Unable to locate plugin for com.metavante.efd.cms.log.log4j.EFDPatternLayout
2017-07-06 11:02:48,455 main ERROR Unable to inject fields into builder class for plugin type class org.apache.logging.log4j.core.appender.ConsoleAppender, element Console. java.lang.NullPointerException
at org.apache.logging.log4j.core.config.plugins.visitors.PluginElementVisitor.findNamedNode(PluginElementVisitor.java:103)
at org.apache.logging.log4j.core.config.plugins.visitors.PluginElementVisitor.visit(PluginElementVisitor.java:87)
at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.injectFields(PluginBuilder.java:179)
at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:121)
at org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:952)
at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:892)
at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:884)
at org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:508)
at org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:232)
at org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:244)
at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:545)
at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:617)
at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:634)
at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:229)
at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:242)
at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:45)
at org.apache.logging.log4j.LogManager.getContext(LogManager.java:174)
at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:618)
at com.metavante.efd.util.logging.logStore.types.Log4jLogStore.<init>(Log4jLogStore.java:34)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at com.metavante.efd.util.logging.LoggerProperties.getLogStore(LoggerProperties.java:148)
at com.metavante.efd.util.logging.Logger.getLogStoreInstance(Logger.java:97)
at com.metavante.efd.util.logging.Logger.debug(Logger.java:155)
at com.fis.customAgent.local.JBoss_Startup_Agent.cleanDirectories(JBoss_Startup_Agent.java:220)
at com.fis.customAgent.local.JBoss_Startup_Agent.premain(JBoss_Startup_Agent.java:182)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at sun.instrument.InstrumentationImpl.loadClassAndStartAgent(Unknown Source)
at sun.instrument.InstrumentationImpl.loadClassAndCallPremain(Unknown Source)
2017-07-06 11:02:48,461 main ERROR Unable to invoke factory method in class class org.apache.logging.log4j.core.appender.ConsoleAppender for element Console. java.lang.IllegalStateException: No factory method found for class org.apache.logging.log4j.core.appender.ConsoleAppender
at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.findFactoryMethod(PluginBuilder.java:224)
at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:130)
at org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:952)
at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:892)
at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:884)
at org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:508)
at org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:232)
at org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:244)
at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:545)
at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:617)
at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:634)
at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:229)
at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:242)
at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:45)
at org.apache.logging.log4j.LogManager.getContext(LogManager.java:174)
at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:618)
at com.metavante.efd.util.logging.logStore.types.Log4jLogStore.<init>(Log4jLogStore.java:34)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at com.metavante.efd.util.logging.LoggerProperties.getLogStore(LoggerProperties.java:148)
at com.metavante.efd.util.logging.Logger.getLogStoreInstance(Logger.java:97)
at com.metavante.efd.util.logging.Logger.debug(Logger.java:155)
at com.fis.customAgent.local.JBoss_Startup_Agent.cleanDirectories(JBoss_Startup_Agent.java:220)
at com.fis.customAgent.local.JBoss_Startup_Agent.premain(JBoss_Startup_Agent.java:182)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at sun.instrument.InstrumentationImpl.loadClassAndStartAgent(Unknown Source)
at sun.instrument.InstrumentationImpl.loadClassAndCallPremain(Unknown Source)
2017-07-06 11:02:48,463 main ERROR Null object returned for Console in Appenders.
2017-07-06 11:02:48,464 main ERROR Unable to locate appender "STDOUT" for logger config "root"
请帮助我。谢谢。
