log4j2

My Project is composed of multiple modules. Each module can run on its own and have a separate log4j2.xml Say Project X is composed of three modules: Module A has log4j2.xml (contains Loggers and Appenders) Module B has log4j2.xml Module C has log4j2.xml While integrating the modules, I have to manually copy-paste the Loggers and Appenders from each module's log4j2.xml into the project specific log4j2.xml file. To avoid copy-paste, I've looked for XInclude to include multiple files but it supports only when Appenders and Loggers are in different file. http://logging.apache.org/log4j/2.x/manual

I am working on a log4j 1 to log4j 2 migration. Inside a AppConfigInitializer file we use something like this - BasicConfigurator.configure(consoleAppender); What shall I replace this with to get it working in log4j2. I am using the backward compatibility bridge as well but that has broken BasicConfigurator implementation. I think I need to do this using config file, but not able to find how. The solution above works, but since default log level is ERROR, not all logs are shown. Log level can be adjusted with Configurator.setRootLevel method: Configurator.initialize(new DefaultConfiguration())

I want to make some loggers asynchronous in log4j2.properties file. In the xml format you can add as <Loggers> <AsyncLogger name="com.foo.Bar" level="info"> </AsyncLogger> </Loggers> I tried it in log4j2.properties as loggers = com-foo-Bar asyncLogger.com-foo-Bar.name = com.foo.Bar asyncLogger.com-foo-Bar.level = INFO But this syntax seems to be wrong. What is the correct way to configure it? Below is one way of using AsyncLogger in log4j2 properties file - logger.com.foo.Bar.type = AsyncLogger logger.com.foo.Bar.name = com.foo.Bar logger.com.foo.Bar.level = info 来源： https://stackoverflow.com

I am writing Java code that tests a Java library. The library includes its own log4j2 configuration as part of the distribution. I would like to use log4j2 in my test code without modifying the library's configuration. Is there a way to have a separate log4j2 configuration for my test code? This is all running as command-line Java, no servers or web involvement at all. EDIT to try to be more clear: What I want is to be able to configure loggers, appenders, etc for the test code to use , and at the same time have the library code use its own separate configuration file for its logging. The idea

When I run the following simple log4J example, i get an error: import org.apache.logging.log4j.core.*; import java.io.*; import java.sql.SQLException; import java.util.*; public class log4jExample{ /* Get actual class name to be printed on */ static Logger log = Logger.getLogger( log4jExample.class.getName()); public static void main(String[] args) throws IOException,SQLException{ log.debug("Hello this is an debug message"); log.info("Hello this is an info message"); } } and the error reads: Error: package org.apache.logging.log4j.core does not exist Error: cannot find symbol symbol: class

I'm using Slf4j 1.7.x in conjunction with Logback in my applications (it is a Dropwizard-application). Now we have libraries that use the log4j2 (not log4j), and the logging goes to /dev/null . I can't find a logj2-over-slf4j or log4j2-to-slf4j library in any exising maven application, what is the trick? You may use the Log4j 2 to SLF4J Adapter to route your Log4j2 logs to your slf4j implementation. You are right that slf4j itself does not provide an adapter for log4j2. 来源： https://stackoverflow.com/questions/31071230/bridging-from-log4j2-to-slf4j