Log4net VS2012 Log layout customization, error logs and info logs are recorded in separate files

• Turn on the "tools" = "NuGet Package Manager" = "NuGet Package for Management solution" menu in VS

• In the Manage NuGet Packages window, search for log4net and install

• Sometimes, we need to record some business data in the log, such as operator information, we create a new class Webmethodlog, to hold the information needed in the log

 Public classWebmethodlog { Public stringoperatorno{Get;Set;}  Public stringOperatorname {Get;Set; }  Public stringMethod {Get;Set; }  Public stringMessage {Get;Set; } }

• New Webmethodpatternconvert Class

  Public classWebmethodpatternconvert:patternlayoutconverter {protected Override voidConvert (TextWriter writer, loggingevent loggingevent) {varWebMethod = Loggingevent.messageobject asWebmethodlog; if(WebMethod = =NULL)return; Writer. Write ("\r\ n------------------------------------------------------------begin------------------------------------------------------- ---------------"); Writer. Write ("\r\ndate:"+system.datetime.now.tostring ("YYYY-MM-DD hh:mm:ss,fff")); Writer. Write (string. Format ("\r\noperator No.: {0}, Operator Name: {1}", Webmethod.operatorno,webmethod.operatorname)); Writer. Write (string. Format ("\r\nmethod: {0}", Webmethod.method)); Writer. Write ("\r\nmessage:"+webmethod.message); Writer. Write ("\r\ N------------------------------------------------------------End--------------------------------------------------------- ----------------"); }     }

• New Webmethodpatternlayout Class

 Public class webmethodpatternlayout:log4net. Layout.patternlayout      {        public  webmethodpatternlayout ()        }            {this. Addconverter ("webMethod"typeof(Webmethodpatternconvert));        }        } 

• The following configuration is done in Web. config:

1. Add the following configuration to the Configsections tab

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

2. Add the following configurations under the Configuration tab　　

<log4net> <root> <level value=" All"/> <appender-ref ref="Infoappender"/> <appender-ref ref="Errorappender"/> </root> <logger name="Loginfo"> <level value="Info"/> <appender-ref ref="Infoappender"/> </logger> <appender name="Infoappender"Type="log4net. Appender.rollingfileappender,log4net"> <param name="File"Value="logs/"/> <param name="Appendtofile"Value="true"/> <param name="MaxFileSize"Value="10240"/> <param name="maxsizerollbackups"Value=" -"/> <param name="Staticlogfilename"Value="false"/> <param name="Rollingstyle"Value="Date"/> <param name="Datepattern"Value="&quot; logs_&quot;yyyymmddhh&quot;info.txt&quot;"/> <!--<layout type="log4net. Layout.patternlayout,log4net">--> <layout type="HITTS.Web.Common.WebMethodPatternLayout"> <param name="Conversionpattern"Value="%webmethod"/> </layout> <filter type="log4net. Filter.levelrangefilter"> <levelmin value=" All"/> <levelmax value="INFO"/> </filter> </appender> <logger name="LogError"> <level value="Error"/> <appender-ref ref="Errorappender"/> </logger> <appender name="Errorappender"Type="log4net. Appender.rollingfileappender,log4net"> <param name="File"Value="logs/"/> <param name="Appendtofile"Value="true"/> <param name="MaxFileSize"Value="10240"/> <param name="maxsizerollbackups"Value=" -"/> <param name="Staticlogfilename"Value="false"/> <param name="Rollingstyle"Value="Date"/> <param name="Datepattern"Value="&quot; logs_&quot;yyyymmddhh&quot; error.txt&quot;"/> <layout type="HITTS.Web.Common.WebMethodPatternLayout"> <param name="Conversionpattern"Value="%webmethod"/> </layout> <filter type="log4net. Filter.levelrangefilter"> <levelmin value="ERROR"/> <levelmax value="FATAL"/> </filter> </appender> <appender name="ConsoleApp"Type="log4net. Appender.consoleappender,log4net"> <layout type="log4net. Layout.patternlayout,log4net"> <param name="Conversionpattern"Value="%d [%t]%-5p%c-%m%n"/> </layout> </appender> </log4net>

• Add the following code to the AssemblyInfo.cs file:

" Web. config " true)]

• Test Log Code

[WebMethod]

public static string Logtest ()
{
Log4net. ILog log = log4net. Logmanager.getlogger ("Infotest");
String json = "{' Name ': ' Cherry ', ' age ': ' 27 '}";
Log. Info (New Webmethodlog () {Operatorno = employee. Employeeno, Operatorname = employee. Name, method = HttpContext.Current.Request.Path, message = json});
Log. Error (New Webmethodlog () {Operatorno = employee. Employeeno, Operatorname = employee. Name, method = HttpContext.Current.Request.Path, message = json});
return JSON;
}

• The test results are as follows:

The following files are generated under the Logs folder:

Log4net VS2012 Log layout customization, error logs and info logs are recorded in separate files