.Net Core项目中整合Serilog

   引入Serilog.AspNetCore 

   Serilog.Settings.Configuration

  Serilog.Sinks.MSSqlServer   日志写入数据库需要引入

1.创建Serilog.json配置文件

{
  "Serilog": {
    // 日志输出级别
    "MinimumLevel": {
      "Default": "Debug",
      "Override": {
        // 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
        "Microsoft": "Information",
        "System": "Warning",                             //简化日志
        "Microsoft.AspNetCore": "Warning"
      }
    },
    "WriteTo": [
      {
        "Name": "Console",
        "Args": {
          "theme": "Serilog.Sinks.SystemConsole.Themes.AnsiConsoleTheme::Code, Serilog.Sinks.Console",
          "outputTemplate": "时间:{Timestamp: HH:mm:ss.fff} 事件等级:{Level} 详细信息:{Message}{NewLine}{Exception}"
        }
      },
      {
        "Name": "File",
        "Args": {
          "path": "logs/log.txt",
          "rollingInterval": "Day", // "创建文件的类别，可以是分钟，小时，天，月,年": null,
          "retainedFileCountLimit": 60, // "--设置日志文件个数最大值，默认31，意思就是只保留最近的31个日志文件", "等于null时永远保留文件": null,
          //"outputTemplate": "{Timestamp:HH:mm:ss} [{Level:u3}] ({Application}/{MachineName}/{ThreadId}) {Message}{NewLine}{Exception}",
          "fileSizeLimitBytes": 3145728, //设置单个文件大小为3M 默认1G
          "rollOnFileSizeLimit": true //超过文件大小后创建新的
        }
      },
      {
        "Name": "MSSqlServer",
        "Args": {
          "connectionString": "data Source=.;Initial Catalog=I-KeyBox;User ID=sa;Password=123",
          //表名
          "tableName": "Logs",
          //自动创建表
          "autoCreateSqlTable": true,
          //记录日志级别
          "restrictedToMinimumLevel": "Information"
        }
      }
    ]
  }
}

2.

 public static int Main(string[] args)
        {

            Log.Logger = new LoggerConfiguration()
            .Enrich.FromLogContext()
            .WriteTo.Console()
            .ReadFrom.Configuration(new ConfigurationBuilder()
            .AddJsonFile("Serilog.json")
            .Build())
            .CreateLogger();
            try
            {
                Log.Information("Starting web host");
                CreateHostBuilder(args).Build().Run();
                return 0;
            }
            catch (Exception ex)
            {
                Log.Fatal(ex, "Host terminated unexpectedly");
                return 1;
            }
            finally
            {
                Log.CloseAndFlush();
            }
        }

3.

       public static IHostBuilder CreateHostBuilder(string[] args) =>
            Host.CreateDefaultBuilder(args)
            .ConfigureWebHostDefaults(webBuilder =>
             {
                 webBuilder.UseStartup<Startup>();
             })
            .UseSerilog(); // <-- Add this line;将UseSerilog()添加到CreateHostBuilder()中的通用主机。

4.

public void Configure(IApplicationBuilder app, IHostingEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }
            else
            {
                app.UseExceptionHandler("/Home/Error");
            }

            app.UseSerilogRequestLogging(); // <-- Add this line 添加中间件

输出日志