log4j2

I just wonder if there is any way to provide default value for property substitution in LOG4J? I want to pass file path in java system property and then use it with "${env:mySystemProperty}". But what if developer forgets to set this property? Then I would like to have some meaningful default value defined in log4j2.xml. Any idea how to achieve this functionality? EDIT: The env substitution does not work for me: standalone.conf -DoauthLoginLogPath=/path/oauth2.log log44j2.xml <Appender type="File" name="File" fileName="${env:oauthLoginLogPath}" immediateFlush="true"> <Appender type="File" name

Lately I decided to learn how to use the log4j2 logger. I downloaded required jar files, created library, xml comfiguration file and tried to use it. Unfortunately i get this statement in console (Eclipse) : ERROR StatusLogger No log4j2 configuration file found. Using default configuration: logging only errors to the console. This is my testing class code: package log4j.test; import org.apache.logging.log4j.LogManager; import org.apache.logging.log4j.Logger; public class Log4jTest { static final Logger logger = LogManager.getLogger(Logger.class.getName()); public static void main(String[] args

I'd like a very simple XML configuration file with a console and a file appender using log4j2. (The Apache Website is killing me with much Information.) <?xml version="1.0" encoding="UTF-8"?> <Configuration status="INFO"> <Appenders> <Console name="Console" target="SYSTEM_OUT"> <PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n" /> </Console> <File name="MyFile" fileName="all.log" immediateFlush="false" append="false"> <PatternLayout pattern="%d{yyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/> </File> </Appenders> <Loggers> <Root level="debug">

I have packaged my log4j2 custom plugin into a separate jar (contains only plugin classes) and have put it in application classpath. But it does not get detected. I googled found that it's a bug - "packages" parameter is no longer used. Also some links suggested some alternatives where maven pom.xml and a log4j2 plugin dat file comes in context. The problem is that I am not familiar with maven and have no idea on how dat file is generated. I just know that it is included in log4j-2.1-core.jar where existing log4j2 plugins are defined in pom.xml. Can some-one suggest me how can I make my custom

If one is not running inside a web application, what is the proper way to shutdown Log4j2? I only see a noop LogManager.shutdown() There is no public API for this, but you can use ((LifeCycle) LogManager.getContext()).stop(); If you have an interest in having a public API for this, please vote for or add a comment here: https://issues.apache.org/jira/browse/LOG4J2-124 Update: In Log4j 2.5 you can call Configurator.shutdown() . With Log4j 2.6 you can call LogManager.shutdown() . Explanation and story behind What Log4j 2 use internally is what they call a ShutdownRegistrationStrategy . It

$ java -Dlog4j.configuration=file:///path/to/your/log4j2.xml -jar /path/to/your/jar_file.jar Written to the console, you get ERROR StatusLogger No log4j2 configuration file found. Using default configuration: logging only errors to the console. But, it also looks like the configuration file has been found and was not parsable: log4j:WARN Continuable parsing error 2 and column 31 log4j:WARN Document root element "Configuration", must match DOCTYPE root "null". log4j:WARN Continuable parsing error 2 and column 31 log4j:WARN Document is invalid: no grammar found. log4j:ERROR DOM element is - not

在(9)中我们提到了如何让ESB项目转换为Web项目后日志信息能输出到控制台和日志文件，在继续研究中，我还发现了以下一些问题： 1. 关于jansi-64.dll的问题。 log4j2-core库引用了jansi库，jansi库用于在控制台输出彩色文字，而这个库正常使用需要jansi的本地dll文件，而这个文件包含在mule_libs/opt/jline-2.7.jar文件中，当Web项目启动时，会从这个jar文件中解压出jansi.dll文件，不必拷贝一份到Windows/Systems目录下，但是这个解压需要tomcat有一个temp目录。因此要保证log4j2能正常使用，需要在tomcat根目录下预先建立一个temp目录，jansi.dll文件解压后，会在temp目录下生成一个名为jansi-64.dll的dll文件，让每次使用log4j2时可以直接引用。 2.关于Tomcat对共享jar文件的classpath查找问题。 如果需要部署在Tomcat上的ESB项目比较多，而且这些ESB项目引用了相同的库文件时，一般我们会将这些公共的库文件拷贝到tomcat的一个公共目录下(例如shared_lib目录)，这样需要部署的ESB项目war文件将会很小，便于部署和复制，但这样做也带来了一个问题，就是Tomcat的Classpath寻找问题。 Tomcat在加载一个Web项目时