.NET Core自定义配置文件_实用技巧_

 public static IConfigurationRoot LoadSettings(this IHostEnvironment env) { return new ConfigurationBuilder() .SetBasePath(AppDomain.CurrentDomain.BaseDirectory) .AddJsonFile("common.json", optional: true, reloadOnChange: false) .AddJsonFile("appsettings.json", optional: true, reloadOnChange: false) .AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true, reloadOnChange: false) .AddEnvironmentVariables() .Build(); }

 private readonly IConfiguration _configuration; public Startup(IWebHostEnvironment env) { _configuration = env.LoadSettings(); }

 public static IHostBuilder CreateHostBuilder(string[] args) => Host.CreateDefaultBuilder(args) .ConfigureAppConfiguration((hostingContext, config) => { var env = hostingContext.HostingEnvironment; config.SetBasePath(env.ContentRootPath); config.AddJsonFile("devappsettings.json", optional: false, reloadOnChange: true); }) .ConfigureWebHostDefaults(webBuilder => { webBuilder.UseStartup(); });

 var builder = new ConfigurationBuilder(); var profileCollection = new Dictionary { {"AuthorProfile:FirstName", "Joydip"}, {"AuthorProfile:LastName", "Kanjilal"}, {"AuthorProfile:Address", "Hyderabad, India"} }; builder.AddInMemoryCollection(profileCollection); Configuration = builder.Build();

 public static IHostBuilder CreateHostBuilder(string[] args) => Host.CreateDefaultBuilder(args) .ConfigureAppConfiguration((hostingContext, config) => { var builder = new ConfigurationBuilder(); var profileCollection = new Dictionary { {"AuthorProfile:FirstName", "Joydip"}, {"AuthorProfile:LastName", "Kanjilal"}, {"AuthorProfile:Address", "Hyderabad, India"} }; builder.AddInMemoryCollection(profileCollection); config.AddConfiguration(builder.Build()); }) .ConfigureWebHostDefaults(webBuilder => { webBuilder.UseStartup(); });

 public class AppSettings { private static IConfiguration Configuration { get; set; } public AppSettings(IConfiguration configuration) { Configuration = configuration; } /// 
 /// 封装要操作的字符 /// 
 ///  ///  public static string GetValue(params string[] sections) { try { if (sections.Any()) return Configuration[string.Join(":", sections)]; } catch (Exception) { } return ""; } /// 
 /// 递归获取配置信息数组 ///引用 Microsoft.Extensions.Configuration.Binder 包 /// 
 ///  ///  ///  public static List App(params string[] sections) { List list = new List(); Configuration.Bind(string.Join(":", sections), list); return list; } }

services.AddSingleton(new AppSettings(Configuration));

var info = AppSettings.GetValue("Logging", "LogLevel");