通过依赖注入单独记录多个后台服务

Question

我有一个问题，在我的项目中我有 3 个后台服务，我需要单独记录到 3 个文件，1 个后台服务 - 1 个日志文件。

问题是DI注入的其他类没有记录在具体后台服务的日志文件中。

也就是说，我希望在一个后台服务的上下文中将该服务和该服务内的所有对象记录到一个文件中

例如，我有这些课程：

  public class SimpleBackgroundService: BackgroundService
  {
      private readonly IServiceProvider _serviceProvider;
      private readonly ILogger<SimpleBackgroundService> _logger;

      private readonly ClientHandler _clientHandler;
      private readonly AddressHandler _addressHandler;
  }

  public class SeconSimpleBackgroundService: BackgroundService
  {
      private readonly IServiceProvider _serviceProvider;
      private readonly ILogger<SeconSimpleBackgroundService> _logger;

      private readonly TechnicalConnection _tcSoap;
      private readonly ClientHandler _clientHandler;
      private readonly AddressHandler _addressHandler;
  }

我有这些配置：

"Serilog": {
      "Using": [ "Serilog.Sinks.Console", "Serilog.Sinks.File", "Serilog.Sinks.Async", "Serilog.Expressions" ],
      "MinimumLevel": {
        "Default": "Verbose",
        "Override": {
          "Microsoft": "Information",
          "Microsoft.AspNetCore": "Warning",
          "Microsoft.AspNetCore.Hosting.Diagnostics": "Warning",
          "System.Net.Http.HttpClient": "Warning"
        }
      },
      "WriteTo:Console": {
        "Name": "Console",
        "Args": {
          "outputTemplate": "[{Timestamp:HH:mm:ss} {Level:u3} {SourceContext}] {Message:lj}{NewLine}{Exception}"
        }
      },
      "WriteTo": [
        {
          "Name": "Logger",
          "Args": {
            "configureLogger": {
              "Filter": [
                {
                  "Name": "ByIncludingOnly",
                  "Args": {
                    "expression": "SourceContext = 'Mtp.App.BackgroundServices.SecondSimpleBackgroundService'"
                  }
                }
              ],
              "WriteTo:Async": {
                "Name": "Async",
                "Args": {
                  "configure": [
                    {
                      "Name": "File",
                      "Args": {
                        "path": "./logs/temp_log.json",
                        "rollingInterval": "Day",
                        "rollOnFileSizeLimit": true,
                        "fileSizeLimitBytes": 20971520,
                        "retainedFileCountLimit": 50,
                        "formatter": {
                          "type": "Serilog.Formatting.Compact.CompactJsonFormatter, Serilog.Formatting.Compact"
                        }
                      }
                    }
                  ]
                }
              }
            }
          }
        },
        {
          "Name": "Logger",
          "Args": {
            "configureLogger": {
              "Filter": [
                {
                  "Name": "ByIncludingOnly",
                  "Args": {
                    "expression": "SourceContext = 'Mtp.App.BackgroundServices.SimpleBackgroundService'"
                  }
                }
              ],
              "WriteTo:Async": {
                "Name": "Async",
                "Args": {
                  "configure": [
                    {
                      "Name": "File",
                      "Args": {
                        "path": "./logs/temp_log.json",
                        "rollingInterval": "Day",
                        "rollOnFileSizeLimit": true,
                        "fileSizeLimitBytes": 20971520,
                        "retainedFileCountLimit": 50,
                        "formatter": {
                          "type": "Serilog.Formatting.Compact.CompactJsonFormatter, Serilog.Formatting.Compact"
                        }
                      }
                    }
                  ]
                }
              }
            }
          }
        },
        {
          "Name": "Logger",
          "Args": {
            "configureLogger": {
              "Filter": [
                {
                  "Name": "ByIncludingOnly",
                  "Args": {
                    "expression": "StartsWith(SourceContext,'Mtp.App.Handlers')"
                  }
                }
              ],
              "WriteTo:Async": {
                "Name": "Async",
                "Args": {
                  "configure": [
                    {
                      "Name": "File",
                      "Args": {
                        "path": "./logs/handlers_log_.json",
                        "rollingInterval": "Day",
                        "rollOnFileSizeLimit": true,
                        "fileSizeLimitBytes": 20971520,
                        "retainedFileCountLimit": 50,
                        "formatter": {
                          "type": "Serilog.Formatting.Compact.CompactJsonFormatter, Serilog.Formatting.Compact"
                        }
                      }
                    }
                  ]
                }
              }
            }
          }
        },
      ]
    }

我尝试通过 Include 和 StartsWith 进行配置，但没有运气

Answer 1

首先你可以尝试在program.cs中配置设置，如下所示，看看它是否有效。

var logger = new LoggerConfiguration()
    .WriteTo.Logger(l => l
            .Filter.ByIncludingOnly(Matching.FromSource<SimpleBackgroundService>())
            .WriteTo.File("Simple.log"))
    .CreateLogger();
builder.Services.AddSerilog(logger);

然后对于应用程序设置表达式，您需要安装包

Serilog.Expressions

以使表达式起作用，然后使用“包含”代替。

            "Filter": [
              {
                "Name": "ByIncludingOnly",
                "Args": {
                  "expression": "Contains(SourceContext, 'SimpleBackgroundService')"
                }
              }
            ],

另一件事是你的服务名称是

SeconSimpleBackgroundService

，但你在配置文件中写了“SecondSimpleBackgroundService”。