Log4j Debug Info Error
Contents |
All Implemented Interfaces: Serializable Direct Known log4j levels order Subclasses: UtilLoggingLevel public class Levelextends Priorityimplements Serializable org.apache.log4j.level jar Defines the minimum set of levels recognized by the system, log4j2 log levels that is OFF, FATAL, ERROR, WARN, INFODEBUG and ALL. The Level class may be subclassed
Log4j Threshold
to define a larger level set. Author: Ceki Gülcü See Also:Serialized Form Field Summary staticLevel ALL The ALL has the lowest possible rank and is intended to turn log4j set log level on all logging. staticLevel DEBUG The DEBUG Level designates fine-grained informational events that are most useful to debug an application. staticLevel ERROR The ERROR level designates error events that might still allow the application to continue running. staticLevel FATAL The FATAL level designates very severe error events that will presumably lead the application to abort. staticLevel INFO The INFO level designates informational messages that highlight the progress of the application at coarse-grained level. staticLevel
Log4j 1.x Migration API Configuration Web Applications and JSPs Lookups Appenders Layouts Filters Async Loggers Garbage-free Logging JMX Logging Separation Extending Log4j Plugins Programmatic Log4j Configuration Custom Log Levels In Code In Configuration Adding logging levels cisco or Replacing Levels Custom Loggers Custom Logger Example Code Generation Tool Legacy Log4j
Logger Levels Java
1.2 Log4j 2.3 Components API Implementation Commons Logging Bridge Log4j 1.2 API SLF4J Binding JUL Adapter Scala 2.10 API Scala
Slf4j Log Levels
2.11 API Log4j 2 to SLF4J Adapter Apache Flume Appender Log4j Tag Library Log4j JMX GUI Log4j Web Application Support Log4j NoSQL support Log4j IO Streams Log4j Liquibase Binding Project Information Dependencies Dependency https://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/Level.html Convergence Dependency Management Project Team Mailing Lists Issue Tracking Project License Source Repository Project Summary Project Reports Changes Report JIRA Report Surefire Report RAT Report Custom Log Levels Defining Custom Log Levels in Code Log4J 2 supports custom log levels. Custom log levels can be defined in code or in configuration. To define a custom log level in code, use the Level.forName() method. This method creates https://logging.apache.org/log4j/2.x/manual/customloglevels.html a new level for the specified name. After a log level is defined you can log messages at this level by calling the Logger.log() method and passing the custom log level: // This creates the "VERBOSE" level if it does not exist yet. final Level VERBOSE = Level.forName("VERBOSE", 550); final Logger logger = LogManager.getLogger(); logger.log(VERBOSE, "a verbose message"); // use the custom VERBOSE level // Create and use a new custom level "DIAG". logger.log(Level.forName("DIAG", 350), "a diagnostic message"); // Use (don't create) the "DIAG" custom level. // Only do this *after* the custom level is created! logger.log(Level.getLevel("DIAG"), "another diagnostic message"); // Using an undefined level results in an error: Level.getLevel() returns null, // and logger.log(null, "message") throws an exception. logger.log(Level.getLevel("FORGOT_TO_DEFINE"), "some message"); // throws exception! When defining a custom log level, the intLevel parameter (550 and 350 in the example above) determines where the custom level exists in relation to the standard levels built-in to Log4J 2. For reference, the table below shows the intLevel of the built-in log levels. Standard log levels built-in to Log4J Standard Level intLevel OFF 0 FATAL 100 ERROR 200 WARN 300 INFO 400 DEBUG 500 TRACE 600 ALL Integer.MAX_VALUE Defining
Level java.lang.Object org.apache.logging.log4j.Level All Implemented Interfaces: Serializable, Comparable