logging - Serilog 没有方法“.ForContext()”

Question

在我的项目中，日志记录是使用 Serilog 实现的。当我尝试记录一行时，我想添加一些不应包含在消息中但应该包含在日志中的值。

我的 _Logger 没有用于此的“.ForContext”() 方法。也许我错了注册的serilog？

处理程序类：

public class LogHandler 
    {
        private readonly ILogger<LogHandler> _logger;

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

       **_logger.(HAS NO METHOD)ForContext("Hello", ...);** 
}

程序.cs：

namespace LoggingExample
{
    public class Program
    {
        public static void Main(string[] args)
        {
            CreateWebHostBuilder(args).Build().Run();
        }

        public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
            WebHost.CreateDefaultBuilder(args)
            .UseStartup<Startup>()
            .ConfigureLogging(loggingConfiguration => loggingConfiguration.ClearProviders())
            .UseSerilog((hostingContext, loggerConfiguration) =>
                loggerConfiguration.ReadFrom.Configuration(hostingContext.Configuration)
            .Enrich.FromLogContext());
    }

}

启动：

namespace LoggingExample
{
    public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; }

        public void ConfigureServices(IServiceCollection services)
        {
            services.AddSingleton<ILogHandler, LogHandler>()
                .AddMvc()
                .SetCompatibilityVersion(CompatibilityVersion.Version_2_2);
        }

        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }
            else
            {
                app.UseHsts();
            }

            app.UseHttpsRedirection();
            app.UseMvc();
        }
    }
}

设置：

{
  "Serilog": {
    "Using": [ "Serilog.Sinks.Graylog", "Serilog.Sinks.Console" ],
    "MinimumLevel": {
      "Default": "Warning",
      "Override": {
        "LoggingExample.Handler": "Information"
      }
    },
    "WriteTo": [
      {
        "Name": "Graylog",
        "Args": {
          "hostnameOrAddress": "127.0.0.1",
          "port": "1514",
          "transportType": "Tcp"
        }
      }
    ],
    "Enrich": [
      "FromLogContext",
      "WithMachineName"
    ],
    "Properties": {
      "Application": "Centralized logging application"
    }
  },
  "AllowedHosts": "*"
}

标签： loggingserilog.net-core-2.1