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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading;
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using System.Threading.Tasks;
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using System.Diagnostics;
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using Microsoft.Extensions.Configuration;
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using Microsoft.Extensions.Configuration.EnvironmentVariables;
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using Microsoft.Extensions.Configuration.CommandLine;
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using Microsoft.Extensions.Configuration.Memory;
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using Microsoft.Extensions.Configuration.Xml;
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using Microsoft.Extensions.Configuration.Ini;
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using Microsoft.Extensions.Configuration.Binder;
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using Microsoft.Extensions.Configuration.KeyPerFile;
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using Microsoft.Extensions.Configuration.Json;
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using Microsoft.Extensions.Configuration.UserSecrets;
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using Microsoft.Extensions.Options;
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using NetEscapades.Configuration.Yaml;
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using Microsoft.Extensions.DependencyInjection;
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using System.Reflection;
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namespace HttpClientStudy.Config
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{
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public static class WebApiConfigExtensions
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{
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/// <summary>
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/// 添加WebApi配置文件
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/// </summary>
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public static IConfigurationBuilder AddWebApiConfiguration(this IConfigurationBuilder configuration)
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{
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/*
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//应用程序信息
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//程序的上下文基准目录:通常是应用程序启动时的目录，也可以理解为包含可执行文件的目录
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Console.WriteLine($"应用程序的基准目录[AppContext.BaseDirectory] = {AppContext.BaseDirectory}");
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//程序安装或启动基目录
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Console.WriteLine($"程序安装或启动基目录[AppDomain.CurrentDomain.SetupInformation.ApplicationBase]：{AppDomain.CurrentDomain.SetupInformation.ApplicationBase}");
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//进程主模块的完整路径
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Console.WriteLine($"进程主模块的完整路径[Process.GetCurrentProcess().MainModule.FileName]:{Process.GetCurrentProcess()?.MainModule?.FileName}");
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//环境变量：当前工作目录
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Console.WriteLine($"当前工作目录[Environment.CurrentDirectory]:{Environment.CurrentDirectory}");
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//文件当前目录：当前工作目录：不一定是启动目录
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Console.WriteLine($"文件当前目录[Directory.GetCurrentDirectory()]：{Directory.GetCurrentDirectory()}");
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//可执行程序集目录
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Console.WriteLine($"可执行程序集目录[Assembly.GetExecutingAssembly().Location]:{Assembly.GetExecutingAssembly().Location}");
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//指定程序集目录：可以是引用类库、指定类所在类库目录
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Console.WriteLine($"指定程序集目录[Type.Assembly.Location]：{typeof(WebApiConfigExtensions).Assembly.Location}");
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*/
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//配置文件根目录：配置项目Dll文件所在目录(被其它项目引用时，引用后dll的文件所在目录)
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string configDellPath = Path.GetDirectoryName(typeof(WebApiConfig).Assembly.Location) ?? Directory.GetCurrentDirectory();
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configuration.SetBasePath(configDellPath);
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Console.WriteLine($"配置文件根目录：{configDellPath}");
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configuration.AddJsonFile($"ConfigFiles/Config.json", optional: false, reloadOnChange: true);
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configuration.AddJsonFile($"ConfigFiles/Config.{System.Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT")}.json", optional: true, reloadOnChange: true);
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return configuration;
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}
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/// <summary>
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/// 使用选项模式
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/// </summary>
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/// <param name="serviceProvider"></param>
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/// <returns></returns>
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public static IServiceCollection AddWebApiOptions(this IServiceCollection services)
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{
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services.AddOptions();
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var configuration = services.BuildServiceProvider().GetService<IConfiguration>();
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if (configuration == null)
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{
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throw new InvalidOperationException("Configuration is not configured.");
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}
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services.Configure<WebApiConfig>(configuration.GetSection("WebApi"));
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return services;
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}
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}
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}
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