Use of log4net

1. Download Log4net.dll

2. Add a component reference to the project

3. Create a new profile in the project Log4net.config, delete the auto-generated code, and copy the following code to the file.

<?xml version= "1.0"?>

<configuration>

<startup>

<supportedruntime version= "v4.0" sku= ". netframework,version=v4.0 "/>

</startup>

<span style= "Color:rgb (102, 102, 204); ><appSettings>

<add key= "log4net. Internal.debug "value=" true "/>

</appSettings>

<log4net>

<!--A1 is set to be a consoleappender--

<appender name= "A1" type= "log4net. Appender.fileappender ">

<file value= "LogFile.txt"/>

<appendtofile value= "false"/>

<!--A1 uses Patternlayout--

<layout type= "log4net. Layout.patternlayout ">

<conversionpattern value= "%-4timestamp [%thread]%-5level%logger%ndc-%message%newline"/>

</layout>

</appender>

<!--Set Root logger level-to-DEBUG and its-only appender to A1-

<root>

<level value= "DEBUG"/>

<appender-ref ref= "A1"/>

</root>

</log4net>

<configSections>

<section name= "log4net" type= "log4net. Config.log4netconfigurationsectionhandler,log4net "/>

</configSections></span>

</configuration>

4. Add in the program class (note that it is added on namespace)

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

private static log4net. ILog log = log4net. Logmanager.getlogger (System.Reflection.MethodBase.GetCurrentMethod (). DeclaringType);

5. And in the execution of the program, add

Log. Debug ("Hello");

After running, the LogFile.txt will be generated in the bin directory

You can also customize a static class

Namespace Attendance

{

STATUC class Log4net.ilog staticlog=log4net. Logmanger.getlogger (System.Reflection.MethodBase.GetCurrentMethod (). DeclaringType);

public static log4net. ILog Log

{

Get

{

return staticlog;

}

Set

{

}

}

}

Call Staticlog in the method.  Warn (""); Staticlog.  Error (""); Staticlog. Info ("");

Staticlog.debug (""); Staticlog.  Off (""); Staticlog. Fatal ("");

1. <!--log level:
2. Level allowed methods Boolean property precedence level
3. OFF Highest
4. FATAL void FATAL (...); BOOL isfatalenabled;
5. rror void Error (...); BOOL iserrorenabled;
6. WARN void WARN (...); BOOL iswarnenabled;
7. info void info (...); BOOL isinfoenabled;
8. debug void Debug (...); BOOL isdebugenabled;
9. All Lowest

Ten.-->