[c#] Log4Net, 내 로깅에 사용자 정의 필드를 추가하는 방법

다음은 몇 가지 개인화 된 기본 설정이있는 작업 버전입니다. 생성 된 예외 코드를 저장하기위한 사용자 지정 열을 추가했습니다.

1) Log4net 구성에 사용자 지정 열 (exceptionCode 여기)을 추가합니다.

<commandText value="INSERT INTO Log([Date],[Thread],[Level],[Logger],[Message],[Exception],[ExceptionCode])
VALUES (@log_date, @thread, @log_level, @logger, @message, @exception,@exceptionCode)" />

<parameter>
    <parameterName value="@exceptionCode" />
    <dbType value="String" />
    <size value="11" />
    <layout type="Common.Utils.LogHelper.Log4NetExtentedLoggingPatternLayout">
        <conversionPattern value="%exceptionCode{Code}" />
    </layout>
</parameter>

2) Log4NetExtentedLoggingCustomParameters.cs

namespace Common.Utils.LogHelper
{
    public class Log4NetExtentedLoggingCustomParameters
    {
        public string ExceptionCode { get; set; }

        public string Message { get; set; }

        public override string ToString()
        {
            return Message;
        }
    }
}

3) Log4NetExtentedLoggingPatternConverter.cs

namespace Common.Utils.LogHelper
{
    public class Log4NetExtentedLoggingPatternConverter : PatternConverter
    {
        protected override void Convert(TextWriter writer, object state)
        {
            if (state == null)
            {
                writer.Write(SystemInfo.NullText);
                return;
            }

            var loggingEvent = state as LoggingEvent;
            var messageObj = loggingEvent.MessageObject as Log4NetExtentedLoggingCustomParameters;

            if (messageObj == null)
            {
                writer.Write(SystemInfo.NullText);
            }
            else
            {
                switch (this.Option.ToLower()) //this.Option = "Code"
                {
                    case "code": //config conversionPattern parameter -> %exceptionCode{Code}
                        writer.Write(messageObj.ExceptionCode);
                        break;
                    default:
                        writer.Write(SystemInfo.NullText);
                        break;
                }
            }
        }
    }
}

4) Log4NetExtentedLoggingPatternLayout.cs

namespace Common.Utils.LogHelper
{
    public class Log4NetExtentedLoggingPatternLayout : PatternLayout
    {
        public Log4NetExtentedLoggingPatternLayout()
        {
            var customConverter = new log4net.Util.ConverterInfo()
            {
                Name = "exceptionCode",
                Type = typeof(Log4NetExtentedLoggingPatternConverter)
            };

            AddConverter(customConverter);
        }
    }
}

5) Logger.cs // 새 열로 로거를 즐기십시오! 🙂

namespace Common.Utils.LogHelper
{
    public class Logger
    {
        static ILog Logger = LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);

        public static string LogError(string message, Exception exception = null)
        {
            var logWithErrCode = GetLogWithErrorCode(message);
            Logger.Error(logWithErrCode, exception);
            return logWithErrCode.ExceptionCode;
        }

        private static Log4NetExtentedLoggingCustomParameters GetLogWithErrorCode(string message)
        {
            var logWithErrCode = new Log4NetExtentedLoggingCustomParameters();
            logWithErrCode.ExceptionCode = GenerateErrorCode(); //this method is absent for simplicity. Use your own implementation
            logWithErrCode.Message = message;
            return logWithErrCode;
        }
    }
}

참조 :

http://blog.stvjam.es/2014/01/logging-custom-objects-and-fields-with

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