Serilog 不从 json 获取控制台配置

问题描述

我的 asp.net core (5) 应用程序中有以下内容：

var config = new ConfigurationBuilder()
    .AddJsonFile("appsettings.json")
    .Build();

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

并在 appsettings.json 以下

{
  "Serilog": {
    "Using": [ "Serilog.Sinks.Console","Serilog.Sinks.File" ],"MinimumLevel": {
      "Default": "information","Override": {
        "MyApp": "information","Microsoft": "Warning","System": "Warning"
      }
    },"Enrich": [
      "FromLogContext","WithMachineName","WithProcessId","WithThreadId"
    ],"Writeto": [
      {
        "Name": "Console","outputTemplate": "{Timestamp:G}[{Level:u3}] ** {Message} ** ({SourceContext}) {NewLine:1}{Exception:1}"
      },{
        "Name": "File","Args": {
          "path": "C:\\logs\\MyApp\\log.txt","outputTemplate": "{Timestamp:G}[{Level:u3}] ** {Message} *** ({SourceContext}) {NewLine:1}{Exception:1}"
        }
      },"Args": {
          "path": "C:\\logs\\MyApp\\log.json","formatter": "Serilog.Formatting.Json.JsonFormatter,Serilog"
        }
      },{
        "Name": "Seq","Args": {
          "_serverUrl": "http://localhost:5341","serverUrl": "http://localhost:8081"
        }
      }
    ]
  },"AllowedHosts": "*"
}

当我在 txt 文件中有 **（我将其用于测试目的）时，控制台 输出似乎是默认一 - config 文件中的任何更改似乎都不会影响它...

我的项目中安装了以下软件包：

<packagereference Include="Microsoft.Extensions.Configuration.Json" Version="5.0.0" />
<packagereference Include="Microsoft.Extensions.Logging.Console" Version="5.0.0" />

<packagereference Include="Serilog.AspNetCore" Version="3.4.0" />
<packagereference Include="Serilog.Enrichers.Environment" Version="2.1.3" />
<packagereference Include="Serilog.Enrichers.Thread" Version="3.1.0" />
<packagereference Include="Serilog.Settings.Configuration" Version="3.1.0" />
<packagereference Include="Serilog.Sinks.Console" Version="3.1.1" />
<packagereference Include="Serilog.Sinks.File" Version="4.1.0" />

解决方法

根据 serilog console sink documentation，您需要在 Args 属性中指定格式

{
  "Serilog": {
    "WriteTo": [
      {
          "Name": "Console","Args": {
            "theme": "Serilog.Sinks.SystemConsole.Themes.AnsiConsoleTheme::Code,Serilog.Sinks.Console","outputTemplate": "[{Timestamp:HH:mm:ss} {Level:u3}] {Message:lj} <s:{SourceContext}>{NewLine}{Exception}"
          }
      }
    ]
  }
}