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# aspnetcore mvc项目里的Serilog

新建mvc项目

修改Program.cs

using Serilog.Events;
using Serilog;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.
builder.Services.AddControllersWithViews();

//配置日志
Log.Logger = new LoggerConfiguration()
#if DEBUG
    .MinimumLevel.Debug()
#else
    .MinimumLevel.Information()
#endif
    .Enrich.FromLogContext()
    .WriteTo.Async(c => c.File("Logs/logs.txt"))
    .WriteTo.Async(c => c.Console())
    .CreateLogger();

builder.Host.UseSerilog();

var app = builder.Build();

if (!app.Environment.IsDevelopment())
{
    app.UseExceptionHandler("/Home/Error");
    app.UseHsts();
}

app.UseHttpsRedirection();
app.UseStaticFiles();

app.UseRouting();

app.UseAuthorization();

app.MapControllerRoute(
    name: "default",
    pattern: "{controller=Home}/{action=Index}/{id?}");

app.Run();

下面代码就是新增的日志配置

Log.Logger = new LoggerConfiguration()
#if DEBUG
    .MinimumLevel.Debug()
#else
    .MinimumLevel.Information()
#endif
    .Enrich.FromLogContext()
    .WriteTo.Async(c => c.File("Logs/logs.txt"))
    .WriteTo.Async(c => c.Console())
    .CreateLogger();

builder.Host.UseSerilog();

修改HomeController.cs

using Microsoft.AspNetCore.Mvc;
using System.Diagnostics;
using WebApplication2.Models;

namespace WebApplication2.Controllers
{
    public class HomeController : Controller
    {
        private readonly ILogger<HomeController> _logger;

        public HomeController(ILogger<HomeController> logger)
        {
            _logger = logger;
        }

        public IActionResult Index()
        {
            _logger.LogInformation("This is a test log message"); // 记录日志
            return View();
        }
    }
}

ABP中的日志

Program.cs

using System;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Serilog;
using Serilog.Events;

namespace Acme.BookStore.Web;

public class Program
{
    public async static Task<int> Main(string[] args)
    {
        //配置日志
        Log.Logger = new LoggerConfiguration()
#if DEBUG
            .MinimumLevel.Debug()
#else
            .MinimumLevel.Information()
#endif
            .MinimumLevel.Override("Microsoft", LogEventLevel.Information)
            .MinimumLevel.Override("Microsoft.EntityFrameworkCore", LogEventLevel.Warning)
            .Enrich.FromLogContext()
            .WriteTo.Async(c => c.File("Logs/logs.txt"))
            .WriteTo.Async(c => c.Console())
            .CreateLogger();

        try
        {
            Log.Information("Starting web host.");
            var builder = WebApplication.CreateBuilder(args);
            builder.Host
                .AddAppSettingsSecretsJson()
                .UseAutofac()
                .UseSerilog();
                //.UseSerilog((context, services, loggerConfiguration) =>
                //{
                //    //loggerConfiguration.WriteTo.File("Logs/log.txt");
                //    //loggerConfiguration.WriteTo.Console();
                //    //loggerConfiguration.WriteTo.Async(c => c.AbpStudio(services));
                //});
            await builder.AddApplicationAsync<BookStoreWebModule>();
            var app = builder.Build();
            await app.InitializeApplicationAsync();
            await app.RunAsync();
            return 0;
        }
        catch (Exception ex)
        {
            Log.Fatal(ex, "Host terminated unexpectedly!");
            return 1;
        }
        finally
        {
            Log.CloseAndFlush();
        }
    }
}

//日志的配置
        Log.Logger = new LoggerConfiguration()
#if DEBUG
            .MinimumLevel.Debug()
#else
            .MinimumLevel.Information()
#endif
            .MinimumLevel.Override("Microsoft", LogEventLevel.Information)
            .MinimumLevel.Override("Microsoft.EntityFrameworkCore", LogEventLevel.Warning)
            .Enrich.FromLogContext()
            .WriteTo.Async(c => c.File("Logs/logs.txt"))
            .WriteTo.Async(c => c.Console())
            .CreateLogger();
//下面必需有
.UseSerilog();

在模块的OnApplicationInitialization中加

app.UseAbpSerilogEnrichers();

修改首页Index.cshtml.cs

using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Logging;

namespace Acme.BookStore.Web.Pages;

public class IndexModel : BookStorePageModel
{
    private readonly ILogger<IndexModel> _logger;
    public IndexModel(ILogger<IndexModel> logger)
    {
        _logger = logger;

        _logger.LogInformation("Logging from OnGet method");
    }

    public void OnGet()
    {
        _logger.LogInformation("Logging from OnGet method");
    }
}

然后就能在Logs/logs.txt查看日志了

作者

吴晓阳（手机：13736969112微信同号）