All Implemented Interfaces: Serializable Direct Known Subclasses: UtilLoggingLevel public class Levelextends Priorityimplements Serializable Defines log4j levels order the minimum set of levels recognized by the org.apache.log4j.level jar system, that is OFF, FATAL, ERROR, WARN, INFODEBUG and ALL. The Level log4j2 log levels class may be subclassed to define a larger level set. Author: Ceki Gülcü See Also:Serialized Form Field Summary static
ALL The ALL has the lowest possible rank and is intended to turn on all logging. staticLevelDEBUG The DEBUG Level designates fine-grained informational events that are most useful to debug an slf4j log levels application. staticLevelERROR The ERROR level designates error events that might still allow the application to continue running. staticLevelFATAL The FATAL level designates very severe error events that will presumably lead the application to abort. staticLevelINFO The INFO level designates informational messages that highlight the progress of the application at coarse-grained level. staticLevelOFF The OFF has the highest possible rank and is intended to turn off logging. staticLevelTRACE The TRACE Level designates finer-grained informational events than the DEBUG
Log4j 1.x Migration API Configuration Web Applications and JSPs Lookups Appenders Layouts Filters Async Loggers Garbage-free Logging JMX Logging Separation Extending Log4j logging levels java Plugins Programmatic Log4j Configuration Custom Log Levels In Code In
Syslog Logging Levels
Configuration Adding or Replacing Levels Custom Loggers Custom Logger Example Code Generation Tool Legacy Log4j 1.2
Log4j Set Log Level
Log4j 2.3 Components API Implementation Commons Logging Bridge Log4j 1.2 API SLF4J Binding JUL Adapter Scala 2.10 API Scala 2.11 API Log4j 2 to SLF4J Adapter Apache https://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/Level.html 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 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 https://logging.apache.org/log4j/2.x/manual/customloglevels.html 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 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 messa
in Java Operating system Cross-platform Type Logging Tool License Apache License 2.0 Website http://logging.apache.org/log4j Apache Log4j is a Java-based logging utility. It was originally written by https://en.wikipedia.org/wiki/Log4j Ceki Gülcü and is now a project of the Apache Software Foundation. Log4j is one of several Java logging frameworks. Gülcü has since started the SLF4J and Logback[3] https://jessehu.wordpress.com/2009/11/17/log4j-levels-all-trace-debug-info-warn-error-fatal-off/ projects, with the intention of offering a successor to Log4j. The Apache Log4j team has created a successor to Log4j 1 with version number 2.[4] Log4j 2 log level was developed with a focus on the problems of Log4j 1.2, 1.3, java.util.logging and Logback, and addresses issues which appeared in those frameworks. In addition, Log4j 2 offers a plugin architecture which makes it more extensible than its predecessor. Log4j 2 is not backwards compatible with 1.x versions,[5] although an "adapter" is available. On log4j logging levels August 5, 2015 the Apache Logging Services Project Management Committee announced[6] that Log4j 1 had reached end of life and that users of Log4j 1 are recommended to upgrade to Apache Log4j 2. Contents 1 Apache Log4j 2 2 Log4j Log Levels 2.1 Custom Log Levels 3 Log4j Configuration 3.1 Example for Log4j 2 3.2 Example for Log4j 1.2 4 TTCC 5 Ports 6 See also 7 References 8 Further reading 9 External links Apache Log4j 2[edit] Apache Log4j 2 is the successor of Log4j 1 which was released as GA version in July 2014. The framework was rewritten from scratch and has been inspired by existing logging solutions, including Log4j 1 and java.util.logging. The main differences[7][8] to Log4j 1 are: Improved reliability. Messages are not lost while reconfiguring the framework like in Log4j 1 or Logback Extensibility: Log4j 2 supports a plugin system to let users define and configure custom components Simplified configuration syntax Support for xml, json, yaml and proper
Pooling(DRCP) IBM Systems Director » Log4J Levels: ALL > TRACE > DEBUG > INFO > WARN > ERROR > FATAL >OFF 2009/11/17 作者:Jesse Hu Loggers may be assigned levels. The set of possible levels, that is DEBUG, INFO, WARN, ERROR and 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 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 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.apache.org/log4j/1.2/apidocs/org/apache/log4j/Level.html 赞过:赞 正在加载…… 相关 发表在 Uncategorized | Tagged java, log4j, tips | 5条评论 5条
All Debug Info Warn Error Fatal Off table id toc tbody tr td div id toctitle Contents div ul li a href Log j Debug Levels a li li a href Logger Levels Java a li li a href Log j Trace a li li a href Trace Level Definition a li ul td tr tbody table p All Implemented Interfaces Serializable Direct relatedl Known Subclasses UtilLoggingLevel public class Levelextends log level hierarchy Priorityimplements Serializable DL Defines the minimum set of p h id Log j Debug Levels p levels recognized by the system that is OFF FATAL ERROR WARN
Config Log Level Error table id toc tbody tr td div id toctitle Contents div ul li a href Npm Config Log Level a li li a href Config Hostagent Log Level a li li a href Android Log Level Setting a li ul td tr tbody table p Validations Active Record Callbacks Active Record Associations Active Record Query Interface Views Layouts and Rendering in Rails Action View Form Helpers Controllers Action relatedl Controller Overview Rails Routing from the Outside In Digging Deeper rails config log level Active Support Core Extensions Rails Internationalization API Action Mailer Basics Active Job Basics
Debug Info Warn Error Fatal Log j table id toc tbody tr td div id toctitle Contents div ul li a href Log j Levels Order a li li a href Log j Trace a li li a href Slf j Log Levels a li li a href Log j Set Log Level a li ul td tr tbody table p All Implemented Interfaces Serializable Direct relatedl Known Subclasses UtilLoggingLevel public class Levelextends p h id Log j Levels Order p Priorityimplements Serializable DL Defines the minimum set of log levels log j levels recognized by the system that is
Debug Info Warning Error Critical table id toc tbody tr td div id toctitle Contents div ul li a href Log Level Trace Vs Debug a li li a href Trace Level Definition a li li a href Log j Debug Levels a li ul td tr tbody table p Pooling DRCP IBM Systems Director raquo Log J Levels ALL relatedl TRACE DEBUG INFO WARN log level hierarchy ERROR FATAL OFF Jesse Hu Loggers may log j trace vs debug be assigned levels The set of possible levels that is DEBUG INFO WARN ERROR and p h id Log Level
Debug Info Warn Error Fatal table id toc tbody tr td div id toctitle Contents div ul li a href Trace Level Definition a li li a href Slf j Log Levels a li li a href Debug Level Samsung a li ul td tr tbody table p Pooling DRCP IBM Systems Director raquo Log J Levels ALL relatedl TRACE DEBUG INFO WARN log level hierarchy ERROR FATAL OFF Jesse Hu Loggers may log j debug levels be assigned levels The set of possible levels that is DEBUG INFO WARN ERROR and log j log levels FATAL are defined in
Error Levels Log net table id toc tbody tr td div id toctitle Contents div ul li a href Log net Log Levels Enum a li li a href Log net Log All Levels a li li a href Log net Custom Log Level a li li a href Log net Set Log Level a li ul td tr tbody table p Apps Config Examples Building FAQ How Tos SDK Reference Manual relatedl Introduction Configuration Contexts Plugins Repositories Internals Community Mailing log net log levels Lists Issue Tracking Development Repository Continuous Integration Project Documentation p h id Log net Log
Error Log Level table id toc tbody tr td div id toctitle Contents div ul li a href Log Level Order a li li a href Log Level Java a li li a href Log Level Fine a li ul td tr tbody table p here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn relatedl more about Stack Overflow the company Business Learn more about hiring php set error log level developers or posting ads with us Stack Overflow
Fatal Error Warn Info Debug table id toc tbody tr td div id toctitle Contents div ul li a href Log Level Hierarchy a li li a href Log Level Trace Vs Debug a li li a href Logging Levels Java a li li a href Syslog Logging Levels a li ul td tr tbody table p All Implemented relatedl Interfaces Serializable Direct Known p h id Log Level Hierarchy p Subclasses UtilLoggingLevel public class Levelextends Priorityimplements Serializable DL log j debug levels Defines the minimum set of levels recognized by the system p h id Log Level Trace Vs
Info Debug Error table id toc tbody tr td div id toctitle Contents div ul li a href Log Level Hierarchy a li li a href Debug Level Samsung a li li a href Log j Log Levels a li li a href Slf j Log Levels a li ul td tr tbody table p Pooling DRCP IBM Systems Director raquo Log J Levels ALL TRACE DEBUG INFO WARN ERROR relatedl FATAL OFF Jesse Hu Loggers may be assigned p h id Log Level Hierarchy p levels The set of possible levels that is DEBUG INFO WARN ERROR log j
Info Error table id toc tbody tr td div id toctitle Contents div ul li a href Log Levels Log j a li li a href Log Level Trace Vs Debug a li li a href Log j Log Levels a li ul td tr tbody table p here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About relatedl Us Learn more about Stack Overflow the company Business Learn more about log level hierarchy hiring developers or posting ads with us Stack
Log j Debug Error table id toc tbody tr td div id toctitle Contents div ul li a href Log j Log Levels a li li a href Log j Set Log Level a li li a href Slf j Log Levels a li ul td tr tbody table p log j - Configuration log j - Sample Program log j - Logging Methods log j - Logging Levels log j - Log Formatting log j - relatedl Logging in Files log j - Logging in Database log j Useful log levels log j Resources log j - Questions and
Log Level Error table id toc tbody tr td div id toctitle Contents div ul li a href Log Level Hierarchy a li li a href Logging Levels Java a li li a href Slf j Log Levels a li li a href Log j Set Log Level a li ul td tr tbody table p here for a quick overview of the site Help Center Detailed answers to any questions you relatedl might have Meta Discuss the workings and policies of p h id Log Level Hierarchy p this site About Us Learn more about Stack Overflow the company
Log j Debug Info Warn Error table id toc tbody tr td div id toctitle Contents div ul li a href Log j Log Level a li li a href Log j Log Levels a li li a href Logger Levels Java a li li a href Slf j Log Levels a li ul td tr tbody table p log j - Configuration log j - Sample Program log j - Logging Methods log j - Logging Levels log j - Log relatedl Formatting log j - Logging in Files log j - Logging log j levels order in Database
Log j Error Debug table id toc tbody tr td div id toctitle Contents div ul li a href Log j Log Levels a li li a href Logging Levels Cisco a li li a href Slf j Log Levels a li li a href Syslog Logging Levels a li ul td tr tbody table p All Implemented Interfaces Serializable relatedl Direct Known Subclasses UtilLoggingLevel public log j levels order class Levelextends Priorityimplements Serializable DL Defines the minimum p h id Log j Log Levels p set of levels recognized by the system that is OFF FATAL log j set
Logging Error Levels table id toc tbody tr td div id toctitle Contents div ul li a href Logging Levels Python a li li a href Log j Log Levels a li li a href Logging Levels Java a li ul td tr tbody table p here for a quick overview of the site Help Center relatedl Detailed answers to any questions you might have log level hierarchy Meta Discuss the workings and policies of this site About Us p h id Logging Levels Python p Learn more about Stack Overflow the company Business Learn more about hiring developers or
Log j Error Warn Info table id toc tbody tr td div id toctitle Contents div ul li a href Log Levels Log j a li li a href Log j Set Log Level a li li a href Syslog Logging Levels a li ul td tr tbody table p All Implemented Interfaces Serializable Direct Known Subclasses UtilLoggingLevel public relatedl class Levelextends Priorityimplements Serializable DL Defines the log j levels order minimum set of levels recognized by the system p h id Log Levels Log j p that is OFF FATAL ERROR WARN INFO code code DEBUG and ALL The
Log cxx Error table id toc tbody tr td div id toctitle Contents div ul li a href Log Levels Log j a li li a href Log j Log Levels a li li a href Log j Custom Log Level Example a li ul td tr tbody table p Log j x Migration API Configuration Web Applications and JSPs Lookups Appenders Layouts Filters Async Loggers Garbage-free Logging JMX relatedl Logging Separation Extending Log j Plugins Programmatic Log j Configuration Custom log j levels order Log Levels In Code In Configuration Adding or Replacing Levels Custom p h id Log
Log j Debug Info Error table id toc tbody tr td div id toctitle Contents div ul li a href Log j Threshold a li li a href Logger Levels Java a li li a href Slf j Log Levels a li ul td tr tbody table p All relatedl Implemented Interfaces Serializable Direct Known log j levels order Subclasses UtilLoggingLevel public class Levelextends Priorityimplements Serializable DL org apache log j level jar Defines the minimum set of levels recognized by the system log j log levels that is OFF FATAL ERROR WARN INFO code code DEBUG and ALL The
Log j Trace Debug Error table id toc tbody tr td div id toctitle Contents div ul li a href Org apache log j level Jar a li li a href Logger Levels Java a li li a href Log j Logging a li ul td tr tbody table p Pooling DRCP IBM Systems Director raquo Log J Levels ALL TRACE DEBUG INFO relatedl WARN ERROR FATAL OFF Jesse log j levels order Hu Loggers may be assigned levels The set of possible levels that p h id Org apache log j level Jar p is DEBUG INFO WARN ERROR
Log Error Information table id toc tbody tr td div id toctitle Contents div ul li a href Log Level Hierarchy a li li a href Log Levels Log j a li li a href Logging Levels Java a li li a href Log warn Java a li ul td tr tbody table p Log relatedl All Known Implementing Classes AvalonLogger p h id Log Level Hierarchy p Jdk LumberjackLogger Jdk Logger Log JLogger LogKitLogger NoOpLog SimpleLog public interface logging levels python Log A simple logging interface abstracting logging APIs In order to be log info java instantiated successfully by
Log j Error Fatal table id toc tbody tr td div id toctitle Contents div ul li a href Log j Levels Order a li li a href Log j Set Log Level a li li a href Slf j Log Levels a li li a href Log j Threshold a li ul td tr tbody table p All relatedl Implemented Interfaces Serializable Direct Known p h id Log j Levels Order p Subclasses UtilLoggingLevel public class Levelextends Priorityimplements log j log levels Serializable DL Defines the minimum set of levels recognized by the p h id Log j Set
Log j Debug Info Error Warn table id toc tbody tr td div id toctitle Contents div ul li a href Log j Log Levels a li li a href Logger Levels Java a li li a href Slf j Log Levels a li ul td tr tbody table p Log j x Migration API Configuration Web Applications and JSPs Lookups Appenders Layouts Filters Async Loggers relatedl Garbage-free Logging JMX Logging Separation Extending Log j Plugins log j levels order Programmatic Log j Configuration Custom Log Levels In Code In Configuration Adding org apache log j level jar or Replacing
Log Levels Debug Info Error table id toc tbody tr td div id toctitle Contents div ul li a href Log Levels Log j a li li a href Log j Log Levels a li li a href Logging Levels Java a li ul td tr tbody table p All Implemented Interfaces Serializable Direct relatedl Known Subclasses UtilLoggingLevel public class log level hierarchy Levelextends Priorityimplements Serializable DL Defines the minimum set p h id Log Levels Log j p of levels recognized by the system that is OFF FATAL ERROR p h id Log j Log Levels p WARN INFO
Log cxx Error table id toc tbody tr td div id toctitle Contents div ul li a href Log j Log Levels a li li a href Java Log Levels Order a li li a href Logging Levels Java a li ul td tr tbody table p here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of relatedl this site About Us Learn more about Stack Overflow the log levels in log j company Business Learn more about hiring developers or posting ads with us
Log j Level Value Error table id toc tbody tr td div id toctitle Contents div ul li a href Log j Log Level a li li a href Logger Levels Java a li li a href Log j Threshold a li ul td tr tbody table p All Implemented Interfaces Serializable relatedl Direct Known Subclasses UtilLoggingLevel public class log j levels order Levelextends Priorityimplements Serializable DL Defines the minimum set p h id Log j Log Level p of levels recognized by the system that is OFF FATAL ERROR org apache log j level jar WARN INFO code code
Log j Debug Info Warn Error Fatal table id toc tbody tr td div id toctitle Contents div ul li a href Log j Threshold a li li a href Logger Levels Java a li li a href Log j Logger a li ul td tr tbody table p Pooling DRCP IBM Systems Director raquo Log J Levels ALL relatedl TRACE DEBUG INFO WARN log j levels order ERROR FATAL OFF Jesse Hu Loggers may be p h id Log j Threshold p assigned levels The set of possible levels that is DEBUG INFO WARN ERROR and FATAL log j
Log j Error Warn table id toc tbody tr td div id toctitle Contents div ul li a href Org apache log j level Jar a li li a href Log j Set Log Level a li li a href Logging Levels Cisco a li li a href Slf j Log Levels a li ul td tr tbody table p All Implemented Interfaces Serializable Direct Known Subclasses UtilLoggingLevel public relatedl class Levelextends Priorityimplements Serializable DL Defines the minimum log j levels order set of levels recognized by the system that p h id Org apache log j level Jar p
Log Level Debug Info Error table id toc tbody tr td div id toctitle Contents div ul li a href Log j Log Level a li li a href Logging Levels Java a li li a href Syslog Logging Levels a li li a href Log j Set Log Level a li ul td tr tbody table p Log j x Migration API Configuration Web Applications and JSPs Lookups Appenders Layouts Filters Async Loggers Garbage-free Logging JMX Logging Separation Extending Log j Plugins Programmatic relatedl Log j Configuration Custom Log Levels In Code In Configuration log level hierarchy Adding or
Log j Error Levels table id toc tbody tr td div id toctitle Contents div ul li a href Org apache log j level Jar a li li a href Slf j Log Levels a li li a href Logger Levels Java a li li a href Syslog Logging Levels a li ul td tr tbody table p All Implemented Interfaces Serializable Direct relatedl Known Subclasses UtilLoggingLevel public class log j levels order Levelextends Priorityimplements Serializable DL Defines the minimum set p h id Org apache log j level Jar p of levels recognized by the system that is OFF
Log j Info Error table id toc tbody tr td div id toctitle Contents div ul li a href Org apache log j level Jar a li li a href Log j Log Levels a li li a href Log j Set Log Level a li li a href Logger Levels Java a li ul td tr tbody table p log j - Configuration log j - Sample Program log j - Logging Methods log j - Logging relatedl Levels log j - Log Formatting log j - Logging log j levels order in Files log j - Logging in
Loglevel Error table id toc tbody tr td div id toctitle Contents div ul li a href Log Levels Java a li li a href Log j Set Log Level a li ul td tr tbody table p Log relatedl All Known Implementing Classes AvalonLogger Jdk LumberjackLogger log level hierarchy Jdk Logger Log JLogger LogKitLogger NoOpLog SimpleLog public interface Log log levels log j A simple logging interface abstracting logging APIs In order to be instantiated log j log levels successfully by LogFactory classes that implement this interface must have a constructor that takes a single String parameter representing slf
Loglevel At Error table id toc tbody tr td div id toctitle Contents div ul li a href Log Levels Log j a li li a href Logging Levels Java a li li a href Syslog Logging Levels a li li a href Log j Set Log Level a li ul td tr tbody table p here for a quick overview of the site Help Center Detailed answers to any relatedl questions you might have Meta Discuss the workings log level hierarchy and policies of this site About Us Learn more about Stack Overflow p h id Log Levels Log
Log j Error Info table id toc tbody tr td div id toctitle Contents div ul li a href Log j Levels Order a li li a href Log j Set Log Level a li li a href Syslog Logging Levels a li li a href Log j Logging a li ul td tr tbody table p All Implemented Interfaces Serializable Direct Known Subclasses UtilLoggingLevel relatedl public class Levelextends Priorityimplements Serializable DL Defines p h id Log j Levels Order p the minimum set of levels recognized by the log j log levels system that is OFF FATAL ERROR WARN
Log j Trace Debug Info Warn Error table id toc tbody tr td div id toctitle Contents div ul li a href Log j Log Level a li li a href Log Level Trace Vs Debug a li li a href Slf j Log Levels a li li a href Log j Threshold a li ul td tr tbody table p All Implemented Interfaces Serializable Direct Known Subclasses UtilLoggingLevel relatedl public class Levelextends Priorityimplements Serializable DL Defines log j levels order the minimum set of levels recognized by the system p h id Log j Log Level p that is
Log j Fatal Error table id toc tbody tr td div id toctitle Contents div ul li a href Log j Levels Order a li li a href Log Levels Log j a li li a href Slf j Log Levels a li li a href Log j Logging a li ul td tr tbody table p All relatedl Implemented Interfaces Serializable Direct Known p h id Log j Levels Order p Subclasses UtilLoggingLevel public class Levelextends Priorityimplements Serializable DL org apache log j level jar Defines the minimum set of levels recognized by the system p h id Log
Log j Error Level table id toc tbody tr td div id toctitle Contents div ul li a href Log j Log Levels a li li a href Org apache log j level Jar a li li a href Logger Levels Java a li ul td tr tbody table p All Implemented Interfaces Serializable Direct Known Subclasses UtilLoggingLevel public relatedl class Levelextends Priorityimplements Serializable DL Defines the minimum log j levels order set of levels recognized by the system that p h id Log j Log Levels p is OFF FATAL ERROR WARN INFO code code DEBUG and ALL The