关于.Net|关于.Net 6 添加NLog的方法关于.Net6添加NLog的方法

创建一个.Net 6 Demo项目
引入NLog包

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添加项目配置文件nlog.config

layout布局：
${longdate} 格式：2022-01-21 17:00:28.4860

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后面的毫秒不是我想要的，可以自定义：date:yyyy-MM-dd HH\:mm\:ss

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NLog等级
Trace：最常见的记录信息，一般是普通输出
Debug：同样是记录信息，出现的频率比Trace少，一般是调试程序
Info：信息类型的消息
Warn：警告消息
Error：错误消息
自上而下，等级递增
指定特定等级：level="Warn"
指定多个等级：levels="Debug,Info" 以逗号分隔
指定等级范围：minlevel="Info" maxlevel="Error"

添加工具类 Logger

using NLog; namespace TestNet6.Utilities{public class Logger{NLog.Logger _logger { get; set; }private Logger(NLog.Logger logger){_logger = logger; }public Logger(string name) : this(LogManager.GetLogger(name))public static Logger Default { get; private set; }static Logger()Default = new Logger(LogManager.GetCurrentClassLogger()); #region Dedubpublic void Debug(string msg, params object[] args)_logger.Debug(msg, args); public void Debug(string msg, Exception e)_logger.Debug(e, msg); #endregion#region Infopublic void Info(string msg, params object[] args)_logger.Info(msg, args); public void Info(string msg, Exception e)_logger.Info(e, msg); #region Tracepublic void Trace(string msg, params object[] args)_logger.Trace(msg, args); public void Trace(string msg, Exception e)_logger.Trace(e, msg); #region Warnpublic void Warn(string msg, params object[] args)_logger.Warn(msg, args); public void Warn(string msg, Exception e)_logger.Warn(e, msg); #region Errorpublic void Error(string msg, params object[] args)_logger.Error(msg, args); public void Error(string msg, Exception e)_logger.Error(e, msg); }}

添加测试Controller

using Microsoft.AspNetCore.Mvc; using TestNet6.Utilities; namespace TestNet6.Controllers{public class TestController : Controller{public ActionResult Index(){return View(); }public string Test(){Logger.Default.Info("", Request); return "Test String"; }}}

最后为了路由有效，还需要添加路由映射

var builder = WebApplication.CreateBuilder(args); // Add services to the container.builder.Services.AddRazorPages(); var app = builder.Build(); // Configure the HTTP request pipeline.if (!app.Environment.IsDevelopment()){app.UseExceptionHandler("/Error"); // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.app.UseHsts(); }app.UseHttpsRedirection(); app.UseStaticFiles(); app.UseRouting(); app.UseAuthorization(); app.MapRazorPages(); //添加路由映射app.MapControllerRoute(name: "default", pattern: "{controller=Home}/{action=Index}/{id?}"); app.Run();

OK，运行测试