我有一个.NET 5.0的控制台应用程序,里面使用了Serilog NuGet包。appsettings.json中的Serilog部分看起来像这样:
"Enrich": [ "FromLogContext", "WithMachineName", "WithProcessId", "WithThreadId" ],
"WriteTo": [
{
"Name": "Console",
"Args": {
"outputTemplate": "[{Timestamp:HH:mm:ss.fff} [{Level}] {SourceContext} {Message}{NewLine}{Exception}",
"theme": "Serilog.Sinks.SystemConsole.Themes.AnsiConsoleTheme::Code, Serilog.Sinks.Console"
}
},
{
"Name": "File",
"Args": {
"path": "/Logs/SharedTreatment_logs.txt",
"outputTemplate": "{Timestamp:G} {SourceContext} [{Level}] {Message}{NewLine:1}{Exception:1}",
"formatter": "Serilog.Formatting.Json.JsonFormatter, Serilog",
"fileSizeLimitBytes": 1000000,
"rollOnFileSizeLimit": "true",
"shared": "true",
"flushToDiskInterval": 3
}
}
]
这段代码已被加载:
Serilog.Debugging.SelfLog.Enable(Console.Error);
var configuration = new ConfigurationBuilder()
.AddJsonFile("appsettings.json")
.Build();
var logger = loggerConfiguration.ReadFrom.Configuration(configuration).CreateLogger();
Log.Logger = logger?.ForContext<T>() ?? throw new ArgumentNullException(nameof(logger));
Host.CreateDefaultBuilder(args).UseSerilog((hostingContext, loggerConfiguration) => loggerConfiguration.ReadFrom.Configuration(hostingContext.Configuration))
解决方案中的每个类都获得了ILogger注入,例如ILogger<MyClass> logger
。
问题在于如何在这样的类中创建一个新的日志记录器,该记录器使用来自appsettings.json的另一个日志配置部分记录到另一个文件中?
更新: 经过大量搜索和测试,我认为我找到了一种方法来做到这一点。但是我仍然不确定它是否是正确的方法或最佳方法?
我必须创建2个子记录器,一个用于排除文件的主记录,另一个仅记录文件,如下所示:
{
"Serilog": {
"Using": [ "Serilog.Sinks.Console", "Serilog.Sinks.File" ],
"MinimumLevel": "Debug",
"Enrich": [ "FromLogContext" ],
"WriteTo": [
{
"Name": "Console",
"Args": {
"outputTemplate": "[{Timestamp:HH:mm:ss.fff} [{Level}] {SourceContext} {Message}{NewLine}{Exception}",
"theme": "Serilog.Sinks.SystemConsole.Themes.AnsiConsoleTheme::Code, Serilog.Sinks.Console"
}
},
{
"Name": "Logger",
"Args": {
"configureLogger": {
"Filter": [
{
"Name": "ByIncludingOnly",
"Args": {
"expression": "@p['LogToFile']"
}
}
],
"WriteTo": [
{
"Name": "File",
"Args": {
"path": "Logs/SharedTreatment_logs_Second.txt",
"outputTemplate": "{Timestamp:yyyy-MM-dd HH:mm:ss.fff} [{Level:u3}] {Message:lj}{NewLine}{Exception}"
}
}
]
}
}
},
{
"Name": "Logger",
"Args": {
"configureLogger": {
"Filter": [
{
"Name": "ByExcluding",
"Args": {
"expression": "@p['LogToFile']"
}
}
],
"WriteTo": [
{
"Name": "File",
"Args": {
"path": "Logs/SharedTreatment_logs.txt",
"outputTemplate": "{Timestamp:G} {SourceContext} [{Level}] {Message}{NewLine:1}{Exception:1}",
"formatter": "Serilog.Formatting.Json.JsonFormatter, Serilog",
"fileSizeLimitBytes": 1000000,
"rollOnFileSizeLimit": "true",
"shared": "true",
"flushToDiskInterval": 3
}
}
]
}
}
}
]
}
}
以下是 C# 代码的样例:
static void Main(string[] args)
{
Console.WriteLine("Hello World!");
Log.Logger = new LoggerConfiguration().DefaultLoggerSetup<Program>();
using (LogContext.PushProperty("LogToFile", true))
{
Log.Information("LogToFileTest");
}
Log.Information("Just log");
Log.CloseAndFlush();
}
创建了两个文件,筛选后的日志就在它们应该在的地方。