log4j2

问题 I just do not like Logback's XML or Groovy configuration and would prefer to do the configuration in Java (this is also because I'm going to change the configuration at runtime at various times after initialization). It seems the only way to do Java configuration of Logback is to have some sort of initialization that hijacks the root appender or to have custom system properties that tell logback to not use the default configuration (which is rather annoying for unit tests and deployment).

问题 I want to migrate from Log4j 1.x to Log4j 2.x. So I'm trying to use log4j-1.2-api.jar as mentioned here. My application has an implementation of org.apache.log4j.spi.LoggingEvent , but I cannot find a way to use LoggingEvent with the log4j 2.x api bridge. Is there anyway that I can use LoggingEvent with log4j 2.2 ? Thanks. 回答1: Internally, log4j uses a LogEvent to carry all the data pieces (the log message, thread name, timestamp, markers, logger name, etc) to the appenders where they may

问题 We are using log4j2 extensively in our system, and configures it with log4j2.xml . Now I need a new app that run jobs , and I want to separately capture all the logs resulted between time X and Y and put it in a database. Normal logging from our framework should occur as usual (to files or wherever log4j2.xml points to), But from time X to time Y. I also want all the logging should be captured, preferably to a list of strings or something that can be saved in a database table. My idea is to

问题 I have come across an odd problem, which I do not understand: when I remove my File appender it prevents me logging to my server, even though the File appender should not be responsible for logging anything to the server; that task should only be for my GELF appender. The following code is able to log both to my console and server just fine Java import org.apache.logging.log4j.LogManager; import org.apache.logging.log4j.Logger; public class App { private static final Logger log4j = LogManager

问题 I need to redirect Jersey request/response log to my log4j2. I have Jersey logging enabled by using this code on my ApplicationJAXRS extends Application : @Override public Set<Class<?>> getClasses() { return new HashSet<Class<?>>() {{ add(LoggingFilter.class); }}; } It seems that Jersey uses JUL (Java Logging) internally and the default output is STDOUT. At this moment I can see the STDOUT on Eclipse Console. The Log4j2 documentation have a section about JDK Logging Adapter. It says To use

问题 I have used log4j2 with springboot, log file has been created but logs are not written in file. log4j2.properties name=PropertiesConfig property.filename = /export/home/apps/logs appenders = console, file appender.console.type = Console appender.console.name = STDOUT appender.console.layout.type = PatternLayout appender.console.layout.pattern = [%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %c{1} - %msg%n appender.file.type = File appender.file.name = LOGFILE appender.file.fileName=${filename}

问题 I am trying to use properties in a log4j2.yaml. The equivalent XML is this. <Configuration> <Properties> <Property name="log-path">logs</Property> <Property name="archive">${log-path}/archive</Property> </Properties> <Appenders> . . . I tried this. Configutation: name: Default properties: property: name: log-path value: "logs" name: archive value: ${log-path}/archive Appenders: But the properties are not getting picked. For example, the following code creates a ${log-path} folder to store a

问题 I have this simple program: package myPackage; import org.apache.logging.log4j.Logger; import org.apache.logging.log4j.LogManager; public class Test { private static Logger logger; public static void main(String[] args) throws Exception { System.out.println("Creating logger..."); logger = LogManager.getLogger(Test.class); System.out.println("Logger created."); logger.info("Hello world!"); } } If I run the program under the debugger, it prints: Creating logger... and then hangs. If I run the

问题 How can i get all loggers used used in log4j2? In log4j i could use getCurrentLoggers like described here: Number of loggers used 回答1: looks like i've found the way: File configFile = new File("c:\\my_path\\log4j2.xml"); LoggerContext loggerContext = Configurator.initialize("my_config", null, configFile.toURI()); Configuration configuration = loggerContext.getConfiguration(); Collection<LoggerConfig> loggerConfigs = configuration.getLoggers().values(); 回答2: YuriR's answer is incomplete in

问题 I can't make hibernate log messages with log4j2. It logs only INFO and WARN. On the other side HikariCP works perfectly with this config. Here is the pom.xml: ... <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-slf4j-impl</artifactId> <version>2.1</version> </dependency> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-api</artifactId> <version>2.1</version> </dependency> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId