logging getlogger

1, log4j Overview Log4j is an open source project for Apache, mainly used to do the log management work in Java development. It is mainly composed of three important components. You can manage the priority of logs, output destinations, and output formats. Its configuration file mainly has XML and properties two kinds of, of course, can also be configured in the program, but the actual development of the general use of properties file. Components of the log4j 1.1. Prio

http://blog.csdn.net/zyz511919766/article/details/25136485/Import Logging logging.debug ('debug message') Logging.info ( ' Info Message ' ) logging.warning ('warning message') Logging.error ( 'error message') logging.critical (' Critical message') This, directly opens the log information on the screen, and only prints warning and above information,Log level level critical > ERROR > WARNING > INFO > DEBUG > NOTSETImport

1. Simply print the log to the screen Import loggingLogging.debug (' This are debug message ')Logging.info (' This is info ')Logging.warning (' This are warning message ')Print on screen:WARNING:root:This is WARNING message By default, logging prints the log to the screen with a log level of warning;The log level size relationship is: CRITICAL > ERROR > WARNING > INFO > DEBUG > NOTSET, and of course you can define the

Python module loggingImport logging# # # Simple to use the format log level level critical > ERROR > WARNING > INFO > DEBUG > NOTSETLogging.debug (' Debug Message ') # logging. Log level (' User output information ') Logging.info (' info message ') logging.warning ( ' Warning message ') logging.error (' error message ') logging.critical (' critical message ')# # # Configuration Log OutputLogging.ba

ImportLoggingdeflogger (): Logger= Logging.getlogger ('Logger') #括号里面默认是root Logger.setlevel ('DEBUG') #设置等级是DEBUG, the number is 10,info is 20,warning is 30,error is 40,criticle is the _format= Logging. Formatter ('[% (name) s]% (asctime) s% (levelname) -8s:% (message) s') FH= Logging. Filehandler ('Log.txt', encoding='Utf-8') #文件处理器 Ch=logging. Streamhandler ()

Official Document: Logging HOWTOOfficial Document: Logging.config moduleThe level of the log is as follows, and the log is logged only if it is greater than or equal to the configured level.# Default level is Warningnotset The official module has more than 10 Handler (useful handlers), which exist in the logging and logging.handlers modules. Commonly used are:

What is SLF4J?SLF4J is a packaging class, a typical facade model of the tool, the user presents a unified operation, compatible with a variety of mainstream logging framework, typical LOG4J/JDK Logging/nop/simple/jakarta commons logging and so on.There is a picture of the image of the visual display of this knowledge:Here are some examples of MAVEN configurations

Introduction to PHP Error and Logging The error and logging functions allow you to process and record errors. The error function allows the user to define fault-handling rules and modify the way in which the errors are logged. The logging function allows users to log applications and send log messages to e-mail, system logs, or other machines. PHP Error and

The Simply encapsulates the code that uses the logging log in Python. When used: Logger = Log ("Debuglog") Logger.error () Logger.info () #Python记录日志 Import Logging import Time RQ = Time.strftime ('%y%m%d ', Time.localtime (Time.time ())) setting = {' L Ogpath ': '/xxx/xxx/logs/', ' filename ': ' xxx_ ' + RQ + '. Log '} class log (object): "' Def __init__ (self, name): Self.path = setting[' LogPath '

Enterprise Library 2.0 Tip (4): How to Configure Logging Application Block in a programmatic way In this series of tips (1) and tips (2), respectively, the use of external configuration files, the use of database records configuration information Two methods, do not know if you have not used any configuration files, and do not use the database to directly use the programming method to achieve it? This article will show you how to configure the

Binary logA SQL statement that records committed transactions causing data changes or potentially causing data changes, generating copies of the data through events in the replay log file, independent of the storage engine type. Binary logs are turned on by default, binary logs and data are stored separately the ability to turn on binary files：In my.cnf [mysqld], addlog_bin[=/path/somefile]The default binary logs are in the database directory,mariadb-bin.000001is a binary log data

#!/usr/bin/env python# Encoding:utf-8import logging# defines the handler output format formatter=logging. The Formatter ('% (asctime) s--% (name) s--% (filename) s--% (message) s ') #创建一个handler to write to the log file, outputting only log fh=logging above the debug level. The Filehandler (' Test.log ') fh.setformatter (formatter) #再创建一个handler for output to the

' [' Compression ']) #yes#print (config[' topsecret.server.com ' [' ForwardX11 ']) #no#print (config[' bitbucket.org ') ##for key in config[' bitbucket.org ': # Note that there is a key to default defaults#print (key)#Print (config.options (' bitbucket.org ')) # with For loop, find all keys under ' bitbucket.org '#Print (Config.items (' bitbucket.org ')) #找到 all key-value pairs under ' bitbucket.org '#Print (Config.get (' bitbucket.org ', ' compression ')) # Yes Get method section key correspon

Python logging modulePython logging provides a standard logging interface, and the Python logging log is divided into 5 levels:debug(), info(), warning(), error() and critical()Simple usageimport logginglogging.warning("warning.........")logging.critical("server is down")PrintWARNING:root:warning.........CRITICAL:root:

The Logging Application Block in Enterprise Library 2.0 is Logging and Instrumentation Application Block in version 1.0 because it focuses on logging and Renamed as Logging Application Block. Logging Application Block provides a unified