Debug Info Warn Error Fatal
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Pooling(DRCP) IBM Systems Director » Log4J Levels: ALL > TRACE > DEBUG > INFO > WARN log level hierarchy > ERROR > FATAL >OFF 2009/11/17 作者:Jesse Hu Loggers may log4j debug levels be assigned levels. The set of possible levels, that is DEBUG, INFO, WARN, ERROR and log4j2 log levels FATAL are defined in the org.apache.log4j.Level class. If a given logger is not assigned a level, then it inherits one from its closest ancestor with an
Trace Level Definition
assigned level. The root logger resides at the top of the logger hierarchy. It always exists and always has an assigned level. The logger is the core component of the logging process. In log4j, there are 5 normal levels Levels of logger available (not including custom Levels), the following is borrowed logger levels java from the log4j API (http://jakarta.apache.org/log4j/docs/api/index.html): DEBUG - The DEBUG Level designates fine-grained informational events that are most useful to debug an application. INFO - The INFO level designates informational messages that highlight the progress of the application at coarse-grained level. WARN - The WARN level designates potentially harmful situations. ERROR - The ERROR level designates error events that might still allow the application to continue running. TRACE - The TRACE Level designates finer-grained informational events than the DEBUG FATAL - The FATAL level designates very severe error events that will presumably lead the application to abort. In addition, there are two special levels of logging available: (descriptions borrowed from the log4j API http://jakarta.apache.org/log4j/docs/api/index.html): ALL -The ALL Level has the lowest possible rank and is intended to turn on all logging. OFF - The OFF Level has the highest possible rank and is intended to turn off logging. source: http://www.allapplabs.com/log4j/log4j_levels.htm http://logging.apach
All Implemented Interfaces: Serializable Direct Known Subclasses: UtilLoggingLevel public class log4j trace Levelextends Priorityimplements Serializable Defines the minimum set
Slf4j Log Levels
of levels recognized by the system, that is OFF, FATAL, ERROR,
Debug Level Samsung
WARN, INFODEBUG and ALL. The Level class may be subclassed to define a larger level set. Author: Ceki https://jessehu.wordpress.com/2009/11/17/log4j-levels-all-trace-debug-info-warn-error-fatal-off/ Gülcü See Also:Serialized Form Field Summary staticLevel ALL The ALL has the lowest possible rank and is intended to turn on all logging. staticLevel DEBUG The DEBUG https://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/Level.html 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 OFF The OFF has the highest possible rank and is intended to turn off logging. staticLevel http://www.allapplabs.com/log4j/log4j_levels.htm in the org.apache.log4j.Level class. If a given logger is not assigned a level, then it inherits one from its closest ancestor with an assigned level. The root logger resides at the top of the logger hierarchy. It always exists and always has an assigned level. The logger is the core component of log level the logging process. In log4j, there are 5 normal levels Levels of logger available (not including custom Levels), the following is borrowed from the log4j API (http://jakarta.apache.org/log4j/docs/api/index.html): static Level DEBUG - The DEBUG Level designates fine-grained informational events that are most useful to debug an application. static Level INFO - The INFO level debug info warn designates informational messages that highlight the progress of the application at coarse-grained level. static Level WARN - The WARN level designates potentially harmful situations. static Level ERROR - The ERROR level designates error events that might still allow the application to continue running. static Level FATAL - The FATAL level designates very severe error events that will presumably lead the application to abort. In addition, there are two special levels of logging available: (descriptions borrowed from the log4j API http://jakarta.apache.org/log4j/docs/api/index.html): static Level ALL -The ALL Level has the lowest possible rank and is intended to turn on all logging. static Level OFF - The OFF Level has the highest possible rank and is intended to turn off logging. Log4j Log4j Features Log4j Loggers Log4j Appenders Log4j Layouts Log4j Levels Log4j Installation Log4j vs. JSR47 Pros & Cons of Log4j Use of this website constitutes acceptance of the AllAppLabs.com Terms and Conditions AllAppLabs.com