Use of Log plugin log4net

Text Format Description

The categories of logs that can be recorded include: FATAL (fatal error), error (general error), WARN (warning), info (general information), debug (debug information).

Text parameter description

%M (message): Output log message, such as Ilog.debug (...) A message for the output
%n (New line): NewLine
%d (datetime): Outputs the moment at which the current statement runs
%r (Run time): The number of milliseconds that the output program consumes from running to executing to the current statement
%T (thread ID): The current statement is in the same thread ID as%thread
%p: The current priority level of the log, which is debug, INFO, WARN ... such as
%c (Class): The name of the current log object, for example:
The pattern string is:%-10c-%m%n
The code is:
ILog Log=logmanager.getlogger ("Exam.Log");
Log. Debug ("Hello");
The output is in the following form:
Exam.log-hello
%l: The line number where the output statement is located
%F: The file name where the output statement resides
%-Number: Indicates the minimum length of the item and, if not enough, fills it with a space
%newline: Error Details
%message: Custom Output information
%logger: Class
%property: Properties

The following is a personal-defined template

%n==========
%n "Log Level"%-5level
%n "Recording Time"%date
%n "Thread Number" [%thread]
%n "Execution Time" [%r] milliseconds
%n "Error File"%F
%n "Error line number"%l
%n "class in Error"%logger property [%property{ndc}]
%n "Error description"%message
%n "Error Details"%newline

Output Example:

==========
"Log Level" ERROR
"Recording Time" 2012-11-08 15:49:37,625
"Thread Number" [10]
"Execution Time" [180] ms
"Error file" C:\Users\Administrator\Documents\Visual Studio 2010\projects\consoleapplication5\consoleapplication5\ Program.cs
"Error line number" 24
"Class in Error" Consoleapplication5.program property [(NULL)]
"Error description" error
"Error Details"
System.DivideByZeroException: Try dividing by 0.
In ConsoleApplication5.Program.Main (string[] args) location C:\Users\Administrator\Documents\Visual Studio 2010\projects\ Consoleapplication5\consoleapplication5\program.cs: Line No. 20

==========
"Log Level" ERROR
"Recording Time" 2012-11-08 15:49:37,666
"Thread Number" [10]
"Execution Time" [221] ms
"Error file" C:\Users\Administrator\Documents\Visual Studio 2010\projects\consoleapplication5\consoleapplication5\ Program.cs
"Error line number" 28
"Class in Error" Consoleapplication5.program property [(NULL)]
"Error description" errors
"Error Details"
System.Exception: An exception has occurred

Instructions for use:

Configuration file:

Node: Add in <configuration>

  <log4net> <!--definition output to file--<appender name= "Sysappender" type= "log4net. Appender.rollingfileappender "> <!--log path--<file value=" logs/log4net/"/> <!--overwrite, default is append      True--> <appendtofile value= "true"/> <rollingstyle value= "Composite"/> <!--file name-- <datepattern value= "Yyyy-mm-dd '. Log '" ></DatePattern> <!--set Unlimited backup =-1 with a maximum backup count of 1000--> <param Name= "maxsizerollbackups" value= "/>" <!--each file size-<param name= "maximumFileSize" value= "500KB"/ > <!--name can be changed to false to be able to change--<param name= "Staticlogfilename" value= "false"/> <layout type = "Log4net." Layout.patternlayout "> <!--output format--<conversionpattern value="%n==========%n "Log Level"%-5level%n "record time "%date%n" Thread number "[%thread]%n" Execution Time "[%r] milliseconds%n" error file "%f%n" error line number "%l%n" Error Class "%logger Property [%property{ndc}]%n" error description "%message%n" Error Details "%newline"/> </layout> </appender> <!--definition output to console command line--<appender name= "Consoleappender" type= "log4net. Appender.consoleappender "> <layout type=" log4net. Layout.patternlayout "> <conversionpattern value="%n==========%n "Log Level"%-5level%n "Record Time"%date%n "thread number" [%thread ]%n "Execution Time" [%r] ms%n "error file"%f%n "error line number"%l%n "Error Class"%logger Property [%property{ndc}]%n "error description"%message%n "Error Details"%newline "/> < /layout> </appender> <!--define output to Windows events--<appender name= "Eventlogappender" type= "log4net. Appender.eventlogappender "> <layout type=" log4net. Layout.patternlayout "> <conversionpattern value="%n==========%n "Log Level"%-5level%n "Record Time"%date%n "thread number" [%thread ]%n "Execution Time" [%r] ms%n "error file"%f%n "error line number"%l%n "Error Class"%logger Property [%property{ndc}]%n "error description"%message%n "Error Details"%newline "/> < /layout> </appender> <!--define the output medium of the log, the following defines the log output in four ways. You can also output the following by one type or other type. -<root> <!--document logging-->> <appender-ref ref= "Sysappender"/> <!--controlConsole control display log-<appender-ref ref= "Consoleappender"/> <!--Windows Event Log-<!--<appender-ref ref= "Eventlogappender"/>--> <!--if the corresponding logging is not enabled, you can comment out <appender-ref ref= "adonetappender_access" in this way />-</root> </log4net>

In the code:

Reference

Using Log4net;
Using System.Reflection

Add [red content] to the namespace

[Assembly:log4net. Config.xmlconfigurator (Watch = True)]
Namespace ConsoleApplication5

Invocation Example:

using system;using system.collections.generic;using system.text;using log4net;using System.Reflection; [Assembly:log4net.  Config.xmlconfigurator (Watch = True)]namespace consoleapplication5{class Program {static void Main (string[] args) {//Create log Record component instance ILog log = Log4net. Logmanager.getlogger (Methodbase.getcurrentmethod ().            DeclaringType); Log Critical error log.            Fatal ("Critical Error"); Log.            Fatal ("Critical Error", New Exception ("A fatal error has occurred"); Log error logs.            Error ("Errors"); Log.            Error ("Errors", New Exception ("An exception occurred")); Log the warning message.            Warn ("warning"); Log.            Error ("Warning", New Exception ("with a warning message")); Log general information.            Info ("General Information"); Log.            Error ("General Information", New Exception ("Send a general message")); Logs debug Information log.            Debug ("Debug Information"); Log.            Error ("Debug Information", New Exception ("A debug message has occurred"));        Console.read (); }    }}

Use of the log plug-in log4net