我想从配置文件中添加最小日志级别和滚动文件路径等SeriLog设置。该标准是他们难以像这样的代码:如何访问.NET启动类构造函数中的AppSettings核心
public Startup(IHostingEnvironment env)
{
var builder = new ConfigurationBuilder()
.SetBasePath(env.ContentRootPath)
.AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
.AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true)
.AddEnvironmentVariables();
Configuration = builder.Build();
Log.Logger = new LoggerConfiguration()
.MinimumLevel.Debug()
.WriteTo.RollingFile("C:/LogFiles/log-{Date}.txt")
.CreateLogger();
}
基本上,我需要能够从appsettings.json访问启动构造函数值。事情是这样的:
Log.Logger = new LoggerConfiguration()
.MinimumLevel.Is((LogEventLevel)Enum.Parse(typeof(LogEventLevel),
Configuration.GetValue<string>("AppSettings.MinimumLoggingLevel")))
.WriteTo.RollingFile(Configuration.GetValue<string>("AppSettings.RollingFilePath"))
我发现Configuration.GetValue
语法在另一个SO发布,但它总是返回null
。
什么是您的appsettings.json样子? –