Log4net Usage Note

2. Download log4net Apache log4net-download Apache log4net
4. Modify assemblyinfo. CS
   Add [Assembly: log4net. config. domconfigurator (configfile = "log. log4net", configfileextension = "log4net", watch = true)]
6. Add your own logger. Log component single-piece mode in the project.
   Public class Logger
   {
   Private Static log4net. ilog logger = log4net. logmanager. getlogger ("all ");
   Public static void log (string message)
   {
   Logger. debug (Message );
   }
   // Add the appropriate log reload for the project here, such as public static void log (string message, exception ex)
   }
7. The log. log4net file mentioned above first posts my configuration in the project:
   <Log4net>
   <Root>
   <Level value = "all"/>
   <Appender-ref = "rollingfile"/>
   </Root>

    

   <Appender name = "rollingfile" type = "log4net. appender. rollingfileappender, log4net">
   <Param name = "file" type = "" value = "log"/>
   <Param name = "appendtofile" value = "true"/>
   <Param name = "rollingstyle" value = "date"/>
   <Param name = "datepattern" value = "yyyy-mm-DD & quot;. log & quot;"/>
   <Param name = "maxsizetorollbackups" value = "10"/>
   <Param name = "maximumfilesize" value = "5 MB"/>
   <! -- Static and Dynamic log file name -->
   <Param name = "staticlogfilename" value = "false"/>
   <Layout type = "log4net. layout. patternlayout, log4net">
   <Param name = "conversionpattern" value = "% d [% T] %-5 p % C-% m % N"/>
   <Param name = "Header" value = "& #13; & #10; ------------------------ header -------------------------- & #13; & #10;"/>
   <Param name = "footer" value = "& #13; & #10; ------------------------ footer -------------------------- & #13; & #10;"/>
   </Layout>
   </Appender>
   <Appender name = "leleapp" type = "log4net. appender. leleappender, log4net">
   <Layout type = "log4net. layout. patternlayout, log4net">
   <Param name = "conversionpattern" value = "% d [% T] %-5 p % C-% m % N"/>
   </Layout>
   </Appender>
   <Logger name = "log4nettest. logtest">
   <Level value = "debug"/>
   <Appender-ref = "rollingfile"/>
   <Appender-ref = "coloredconsoleapp"/>
   <Appender-ref = "systemevent"/>
   </Logger>
   </Log4net>

I have been using log4net in development projects, but I have never been used to writing notes, what I have done, what I have learned, and what I have found. I will share with you here.

Log4net details the conversion mode (conversionpattern) in log4net. layout. patternlayout)

% M (Message): the output Log message, such as ilog. debug (...) Output Message

% N (New Line): line feed

% D (datetime): time when the current statement is output

% R (Run time): OutputProgramNumber of milliseconds consumed from running to execution to the current statement

% T (thread ID): ID of the thread where the current statement is located

% P (priority): Current Log priority level, namely debug, info, warn... And so on

% C (class): name of the current log object

% L: the row number of the output statement

% F: File Name of the output statement

%-Number: indicates the minimum length of the item. If not, fill it with spaces.

For example, execute logger in patternlayout in the conversion mode of % d [% T] %-5 p % C-% m % N. log ("Hello"); generates outputs similar to the following:

09:55:11, 421 [2720] Debug all-hello.