我有两个带有 Serilog 的记录器，它们保存到不同的文件。我想通过 appsettings.json 而不是代码创建记录器。
当我通过创建记录器时Startup.cs配置后，我会得到更具体的日志，我更喜欢这样，因为它更清晰，并且允许其他人检查日志并了解正在发生的情况，而无需太多的技术知识。但是，我想将其应用于应用程序设置，以便我可以将代码迁移到我可能使用的任何其他项目。仅供参考：我不想覆盖日志级别。
例如，我使用代码创建记录器，如下所示：
Log.Logger = new LoggerConfiguration()
.WriteTo.ColoredConsole()
.WriteTo.Logger(lc => lc
.Filter.ByExcluding(Matching.FromSource("Microsoft"))
.WriteTo.File("Serilogs/Program_log_.txt", rollingInterval: RollingInterval.Day)
.MinimumLevel.Information()
.MinimumLevel.Override("Microsoft", LogEventLevel.Information))
.WriteTo.Logger(lc => lc
.Filter.ByIncludingOnly(Matching.FromSource("Microsoft"))
.WriteTo.File("Serilogs/ServerTrace_log_.txt", rollingInterval: RollingInterval.Day)
.MinimumLevel.Information()
.MinimumLevel.Override("Microsoft", LogEventLevel.Information))
.CreateLogger();
这会生成两个独立的输出，我喜欢它们的格式：File 1：可读的自定义日志：
2019-01-18 11:18:09.873 +00:00 [INF] //Some custom log information
2019-01-18 11:18:09.875 +00:00 [INF] //Some more custom log information
File 2：堆栈跟踪，服务器信息：
2019-01-18 11:17:56.378 +00:00 [INF] User profile is available. Using '//A path' as key repository and Windows DPAPI to encrypt keys at rest.
2019-01-18 11:17:57.840 +00:00 [INF] Request starting HTTP/1.1 GET https://localhost:5001/swagger/index.html
2019-01-18 11:17:58.074 +00:00 [INF] Request finished in 235.5796ms 200 text/html
2019-01-18 11:17:58.326 +00:00 [INF] Request starting HTTP/1.1 GET https://localhost:5001/swagger/v1/swagger.json
2019-01-18 11:17:58.452 +00:00 [INF] Request finished in 126.2127ms 200 application/json;charset=utf-8
当我使用 JSON appsettings 执行此操作时，它看起来像这样：
"Serilog": {
"Using": [
"Serilog.Sinks.File",
"Serilog.Filters.Expressions",
"Serilog.Settings.Configuration"
],
"WriteTo": [
{
"Name": "Logger",
"Args": {
"configureLogger": {
"Filter": [
{
"Name": "ByIncluding",
"Args": {
"expression": "SourceContext = 'Microsoft'"
}
}
],
"WriteTo": [
{
"Name": "File",
"Args": {
"path": "./Serilogs/server_logs_.log",
"rollingInterval": "Day"
}
}
]
}
}
},
{
"Name": "Logger",
"Args": {
"configureLogger": {
"Filter": [
{
"Name": "ByExcluding",
"Args": {
"expression": "SourceContext = 'Microsoft.AspNetCore.Hosting.Internal.WebHost'"
}
}
],
"WriteTo": [
{
"Name": "File",
"Args": {
"path": "./Serilogs/program_logs_.log",
"rollingInterval": "Day"
}
}
]
}
}
}
]
}
这会生成两个文件。File 1：可读的自定义日志：
2019-01-18 11:22:52.903 +00:00 [INF] User profile is available. Using '// A path' as key repository and Windows DPAPI to encrypt keys at rest.
2019-01-18 11:22:59.229 +00:00 [INF] Route matched with {action = "PollForStatusUpdate", controller = "StatusMessage"}. Executing action {apiname}.{controller}.{method}.PollForStatusUpdate ({apiname})
2019-01-18 11:22:59.505 +00:00 [INF] Executing action method {apiname}.{controller}.{method}.PollForStatusUpdate ({apiname}) with arguments (["{apiname}.{controller}.{method}.MessageResult"]) - Validation state: "Valid"
2019-01-18 11:22:59.632 +00:00 [INF] //Some custom log information
2019-01-18 11:22:59.639 +00:00 [INF] //Some more custom log information
{apiname}.{controller}.{method}.PollForStatusUpdate ({apiname}), returned result Microsoft.AspNetCore.Mvc.OkObjectResult in 516.8129ms.
2019-01-18 11:23:00.040 +00:00 [INF] Executing ObjectResult, writing value of type '{apiname}.{controller}.{method}.MessageResult'.
2019-01-18 11:23:00.048 +00:00 [INF] Executed action {apiname}.{controller}.{method}.PollForStatusUpdate ({apiname}) in 813.08940000000007ms
File 2：堆栈跟踪，服务器信息：
2019-01-18 11:22:52.903 +00:00 [INF] User profile is available. Using 'C:\Users\msharp\AppData\Local\ASP.NET\DataProtection-Keys' as key repository and Windows DPAPI to encrypt keys at rest.
2019-01-18 11:22:54.263 +00:00 [INF] Request starting HTTP/1.1 GET https://localhost:5001/swagger/index.html
2019-01-18 11:22:54.473 +00:00 [INF] Request finished in 211.831ms 200 text/html
2019-01-18 11:22:54.737 +00:00 [INF] Request starting HTTP/1.1 GET https://localhost:5001/swagger/v1/swagger.json
2019-01-18 11:22:54.838 +00:00 [INF] Request finished in 100.8892ms 200 application/json;charset=utf-8
2019-01-18 11:22:59.205 +00:00 [INF] Request starting HTTP/1.1 POST https://localhost:5001/api/StatusMessage/PollForStatusUpdate application/json-patch+json 180
2019-01-18 11:22:59.229 +00:00 [INF] Route matched with {action = "PollForStatusUpdate", controller = "StatusMessage"}. Executing action PureValuationsApi.Controllers.StatusMessageController.PollForStatusUpdate (PureValuationsApi)
2019-01-18 11:22:59.505 +00:00 [INF] Executing action method {apiname}.{controller}.{method}.PollForStatusUpdate ({apiname}) with arguments (["{apiname}.{controller}.{method}.MessageResult"]) - Validation state: "Valid"
2019-01-18 11:22:59.632 +00:00 [INF] //Some custom lof information
2019-01-18 11:22:59.639 +00:00 [INF] //Some more custom log information
{apiname}.{controller}.{method}.PollForStatusUpdate ({apiname}), returned result Microsoft.AspNetCore.Mvc.OkObjectResult in 516.8129ms.
2019-01-18 11:23:00.040 +00:00 [INF] Executing ObjectResult, writing value of type '{apiname}.{controller}.{method}.MessageResult'.
2019-01-18 11:23:00.048 +00:00 [INF] Executed action {apiname}.{controller}.{method}.PollForStatusUpdate ({apiname}) in 813.08940000000007ms
2019-01-18 11:23:00.052 +00:00 [INF] Request finished in 847.5964ms 200 application/json; charset=utf-8
因此，通过应用感觉相同的技术，结果的结果是不同的：File 1现在包含更多操作信息和File 2包含堆栈plus自定义日志信息，尽管我希望它们完全分开。
