覆盖MinimumLevel在SeriLog中不起作用

时间:2019-08-08 13:40:49

标签: c# logging overriding serilog log-level

尝试设置SeriLog 2.8.0的最低日志级别(在.NET 4.6.2中)。日志记录工作正常,但没有覆盖功能。

这是我的 Program.cs

using System;
using LogTest1.Classes;
using Microsoft.Extensions.Configuration;
using Serilog;
using SomeLib;


namespace LogTest
{
    internal class Program
    {
        private static void Main(string[] args)
        {
            var configuration = new ConfigurationBuilder()
                .AddJsonFile("appsettings.json", false, true)
                .Build();

            Log.Logger = new LoggerConfiguration()
                .ReadFrom.Configuration(configuration)
                .CreateLogger();

            Log.Verbose("Verbose");
            Log.Debug("Debug");
            Log.Information("Information");
            Log.Warning("Warning");
            Log.Error("Error");
            Log.Fatal("Fatal");

            Console.ReadKey();
        }
    }
}

appsettings.json 文件:

{
  "Serilog": {
    "Using": [ "Serilog.Sinks.Console" ],
    "MinimumLevel": {
      "Default": "Warning",
      "Override": {
        "LogTest": "Information"
      }
    },
    "WriteTo": [
      { "Name": "Console" }
    ]
  }
}

期望从信息开始查看所有日志,而只能从警告获取。

1 个答案:

答案 0 :(得分:3)

根据您的配置,您正在覆盖MinimumLevel 用于从SourceContext发送的名称为LogTest的日志消息。...

  "Override": {
    "LogTest": "Information"
  }

像您一样,对Log.Information("Information")的简单调用不会设置源上下文,因此覆盖不适用...您必须先创建上下文。

var contextLog = Log.ForContext("SourceContext", "LogTest");
contextLog.Information("This shows up because of the override!");
contextLog.Information("... And this too!");

Log.Information("This does **not** show, because SourceContext != 'LogTest'");

您可以在文档中阅读有关SourceContext的更多信息: https://github.com/serilog/serilog/wiki/Writing-Log-Events#source-contexts