(i) using log4net to generate log files

1. Introduction of Log4net.dll

1.1 NuGet Install or http://logging.apache.org/log4net/download log4net source code, compile Log4net.dll into the project.

2, Configuration Log4net.config

2.1 Adding configsections nodes in the Web. config file

  < configsections >    <  name= "log4net"  type= "Log4net". Config.log4netconfigurationsectionhandler, log4net "/>  </  configsections>

2.2 Add log4net.config (set to always copy to output directory)

<?XML version= "1.0" encoding= "Utf-8"?><Configuration>  <log4net>    <!--Information Log Class -    <Loggername= "Loginfo">      < Levelvalue= "All" />      <Appender-refref= "Infoappender" />    </Logger>        <!--Information Log Additional media -    <Appendername= "Infoappender"type= "log4net." Appender.rollingfileappender ">      <!--what directory to export to -      <paramname= "File"value= "log\\loginfo\\" />      <!--whether to overwrite the file -      <paramname= "Appendtofile"value= "true" />      <!--number of backup files -      <paramname= "Maxsizerollbackups"value= " the" />      <!--maximum size of a single log file -      <paramname= "MaxFileSize"value= "10240" />      <!--whether to use a static file name -      <paramname= "Staticlogfilename"value= "false" />      <!--log file name -      <paramname= "Datepattern"value= "Yyyymmdd&quot;". htm&quot; " />      <paramname= "Rollingstyle"value= "Date" />      <!--layout, more parameters can be referred to the official website description -      <Layouttype= "log4net." Layout.patternlayout ">        <paramname= "Conversionpattern"value= "&lt;hr color=red&gt;          %n Level:%-5p &lt;BR&gt;          %n time:%d [%t] &lt;BR&gt; %n Description:%m &lt;BR&gt; "/>      </Layout>    </Appender>  </log4net></Configuration>

2.3 Specify the configuration in the AssemblyInfo.cs file Log4net.config

" Log4net.config " " Config " true)]

3. Examples of code usage

3.1 Package Tool class Loghelper

 namespace   july.demo.win{ public  class   Loghelper { static  readonly  log4net. ILog loginfo = log4net. Logmanager.getlogger (  " );  public  static  void  writelog ( info) {  if   (Loginfo. isinfoenabled) {Loginfo.            info (info); }        }    }}

3.2 Use examples

Private void Form1_Load (object  sender, EventArgs e) {    loghelper.writelog (" form generation " );}

4. Operation result

4.1 as follows

(i) using log4net to generate log files