netcore读取配置文件的方法总结

//第1种读取配置文件方法
// 加载日志配置文件
//var setttins = new ConfigurationBuilder().AddJsonFile("appsettings.json").Build();
//var dd = setttins["SeqLogServerUrl"]; //第2种读取配置文件方法
var builder = WebApplication.CreateBuilder(args); 
builder.Host.UseSerilog((ctx, lc) => lc
    .WriteTo.Console()
    .WriteTo.Seq(builder.Configuration["SeqLogServerUrl"])); 
 //第3种读取配置文件方法
var builder1 = new ConfigurationBuilder()
     .SetBasePath(Directory.GetCurrentDirectory()) // 设置配置文件所在目录
     .AddJsonFile("appsettings.Development.json", optional: true, reloadOnChange: true);IConfigurationRoot configuration = builder1.Build();
string setting1 = configuration["SeqLogServerUrl"];