【愚公系列】2023年02月 WMS智能仓储系统-001.NLog日志的使用

愚公搬代码

发布于 2023-03-16 16:12:03

3090

发布于 2023-03-16 16:12:03

文章目录

前言

NLog是一个基于.NET平台编写的日志记录类库，我们可以使用NLog在应用程序中添加极为完善的跟踪调试代码。可以在任何一种.NET语言中输出带有上下文的（contextual information）调试诊断信息，根据喜好配置其表现样式之后发送到一个或多个输出目标（target）中。

官网地址：https://nlog-project.org/

文档地址：https://github.com/NLog/NLog/wiki

GITHUB官网：https://github.com/NLog/NLog.Web

一、NLog日志的使用

1.安装包

NLog.Web.AspNetCore

2.配置文件nlog.config

<?xml version="1.0" encoding="utf-8" ?>
<nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      autoReload="true"
      internalLogLevel="Info"
      internalLogFile="${basedir}/Log/internal-nlog.txt">

  <!-- enable asp.net core layout renderers -->
  <extensions>
    <add assembly="NLog.Web.AspNetCore"/>
  </extensions>

  <!-- the targets to write to -->
  <targets>
    <!-- write logs to file  -->
    <target xsi:type="File" name="allfile" fileName="${basedir}\Log\nlog-all-${shortdate}.log"
            layout="${longdate}|${event-properties:item=EventId_Id}|${uppercase:${level}}|${logger}|${message} ${exception:format=tostring}" />

    <!-- another file log, only own logs. Uses some ASP.NET core renderers -->
    <target xsi:type="File" name="ownFile-web" fileName="${basedir}\Log\nlog-own-${shortdate}.log"
            layout="${longdate}|${event-properties:item=EventId_Id}|${uppercase:${level}}|${logger}|${message} ${exception:format=tostring}|url: ${aspnet-request-url}|action: ${aspnet-mvc-action}" />
  </targets>

  <!-- rules to map from logger name to target -->
  <rules>
    <!--All logs, including from Microsoft-->
    <logger name="*" minlevel="Trace" writeTo="allfile" />

    <!--Skip non-critical Microsoft logs and so log only own logs-->
    <logger name="Microsoft.*" maxlevel="Info" final="true" />
    <!-- BlackHole without writeTo -->
    <logger name="*" minlevel="Trace" writeTo="ownFile-web" />
  </rules>
</nlog>

3.使用

public class Program
{
    public static void Main(string[] args)
    {
        var logger = NLog.Web.NLogBuilder.ConfigureNLog("nlog.config").GetCurrentClassLogger();
        try
        {
            logger.Debug("--- run");
            CreateHostBuilder(args).Build().Run();
        }
        catch (Exception exception)
        {
            logger.Error(exception, "---- exception");
            throw;
        }
        finally
        {
            NLog.LogManager.Shutdown();
        }
    }

    public static IHostBuilder CreateHostBuilder(string[] args) =>
        Host.CreateDefaultBuilder(args)
            .ConfigureWebHostDefaults(webBuilder =>
            {
                webBuilder.UseUrls("http://*:5555")
                .UseStartup<Startup>()
                .UseKestrel(opt => opt.Limits.MaxRequestBodySize = null);
            }).ConfigureLogging(logging =>
            {
                logging.ClearProviders();
                logging.SetMinimumLevel(LogLevel.Trace);
            }).UseNLog()
        .UseDefaultServiceProvider(options =>
        {
            options.ValidateScopes = false;
        });
}