.net core 使用 Serilog 作为日志提供者

nuget引入 Serilog.AspNetCore

Startup构造函数：

        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;

            Log.Logger = new LoggerConfiguration()
                .ReadFrom.Configuration(configuration)
         // 最小的日志输出级别
         //.MinimumLevel.Error()
         // 日志调用类命名空间如果以 Microsoft 开头，覆盖日志输出最小级别为 Information
         //.MinimumLevel.Override("Microsoft", LogEventLevel.Information)
         .Enrich.FromLogContext()
         // 配置日志输出到控制台
        #if DEBUG
         .WriteTo.Console()
        #endif
        // 配置日志输出到文件，文件输出到当前项目的 logs 目录下
        .WriteTo.Logger(lc => {
            lc.Filter.ByExcluding(e => e.Level == LogEventLevel.Error || e.Level == LogEventLevel.Debug)
            .WriteTo.File("logs/normal/log.txt",
             outputTemplate: "{Timestamp:HH:mm:ss} [{Level}] {SourceContext} {NewLine}{Message}{NewLine}{Exception}",
                rollingInterval: RollingInterval.Day,
                rollOnFileSizeLimit: true);
        })
         .WriteTo.Logger(lc => {
             lc.Filter.ByIncludingOnly(e => e.Level == LogEventLevel.Error)
             .WriteTo.File("logs/errors/log.txt",
              outputTemplate: "{Timestamp:HH:mm:ss} [{Level}] {SourceContext} {NewLine}{Message}{NewLine}{Exception}",
                 rollingInterval: RollingInterval.Day,
                 rollOnFileSizeLimit: true);
         })
          .WriteTo.Logger(lc => {
              lc.Filter.ByIncludingOnly(e => e.Level == LogEventLevel.Debug)
              .WriteTo.File("logs/debugs/log.txt",
               outputTemplate: "{Timestamp:HH:mm:ss} [{Level}] {SourceContext} {NewLine}{Message}{NewLine}{Exception}",
                  rollingInterval: RollingInterval.Day,
                  rollOnFileSizeLimit: true);
          })
         // 创建 logger
         .CreateLogger();
        }

 对某个SouceContext特定一个文件：

               .WriteTo.Logger(lc =>
               {
                   lc.Filter.ByIncludingOnly(e => {
                       if (e.Level == LogEventLevel.Error)
                       {
                           var sc = e.Properties["SourceContext"];
                           if (sc != null && sc.ToString() == ""JMS.JMSClient"")
                               return true;
                       }
                       return false;
                   })
                   .WriteTo.File("logs/JMSClient Error/log.txt",
                    outputTemplate: "{Timestamp:HH:mm:ss} {NewLine}{Message}{NewLine}{Exception}",
                       rollingInterval: RollingInterval.Day,
                       rollOnFileSizeLimit: true);
               })

CreateHostBuilder 里面，UseSerilog

        public static IHostBuilder CreateHostBuilder(string[] args) =>
            Host.CreateDefaultBuilder(args)
           .UseSerilog()
            .UseServiceProviderFactory(new JackAspNetCoreServiceProviderFactory())
                .ConfigureWebHostDefaults(webBuilder =>
                {
                    webBuilder.UseStartup<Startup>();
                });
        }

 appsettings设置

  "Serilog": {
    "MinimumLevel": {
      "Default": "Information",
      "Override": {
        "System": "Warning",
        "Microsoft": "Warning"
      }
    }
  }

 控制台程序使用Serilog

nuget 引入：

Serilog.Extensions.Logging
Serilog.Settings.Configuration
Serilog.Sinks.Console
Serilog.Sinks.File

配置代码和上面的startup一样，然后在ServiceCollection里激活serilog

            services.AddLogging(builder => {
                builder.AddSerilog();
            });