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.net 控制台 Nlog的使用

nuget引入NLog组件

NLog.config 记得改为始终复制

<?xml version="1.0" ?>
<nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      autoReload="true"
      throwExceptions="false"
      internalLogLevel="Trace">
 
    <variable name="fileFormat"
         value="
            ${newline}date: ${date}
            ${newline}level: ${level}
            ${newline}logger: ${logger}
            ${newline}machinename: ${machinename}
            ${newline}message: ${message}
            ${newline}------------------------------------------------------------" />
    <targets>
 
    <target name="logfile"
    xsi:type="File"
    maxArchiveFiles="1"
    layout="${fileFormat}"
    archiveAboveSize="102400000"
    fileName="${basedir}/Logs/${date:format=yyyy-MM}/${shortdate}.log" />
 
    </targets>
    <!--写入到文件-->
    <rules>
        <logger name="*" minlevel="Debug" writeTo="logfile" />
    </rules>
</nlog>

　　NLogHelper

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
 
namespace ConsoleApp
{
    public class NLogHelper
    {
        private static NLog.Logger _logger = NLog.LogManager.GetCurrentClassLogger();
 
        private NLogHelper() { }
 
        public static void Trace(string strMsg)
        {
            _logger.Trace(strMsg);
        }
 
        public static void Debug(string strMsg)
        {
            _logger.Debug(strMsg);
        }
 
        public static void Info(string strMsg)
        {
            _logger.Info(strMsg);
        }
 
        public static void Warn(string strMsg)
        {
            _logger.Warn(strMsg);
        }
 
        public static void Error(string strMsg)
        {
            _logger.Error(strMsg);
        }
 
        public static void Fatal(string strMsg)
        {
            _logger.Fatal(strMsg);
        }
 
    }
}

　　使用方法

for (int i = 0; i < 100; i++)
{
    var date = DateTime.Now;
    NLogHelper.Warn("LogTest:" + date.ToString());
    NLogHelper.Info("LogTest:" + date.ToString());
    NLogHelper.Error("LogTest:" + date.ToString());
    NLogHelper.Debug("LogTest:" + date.ToString());
}