初始刷

Infrastructure/App/App.cs

@@ -0,0 +1,105 @@
+using Infrastructure.Model;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.AspNetCore.Http;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
+using System;
+using System.Security.Claims;
+
+namespace Infrastructure
+{
+    public static class App
+    {
+        /// <summary>
+        /// 全局配置文件
+        /// </summary>
+        public static OptionsSetting OptionsSetting => CatchOrDefault(() => ServiceProvider?.GetService<IOptions<OptionsSetting>>()?.Value);
+
+        /// <summary>
+        /// 服务提供器
+        /// </summary>
+        public static IServiceProvider ServiceProvider => InternalApp.ServiceProvider;
+        /// <summary>
+        /// 获取请求上下文
+        /// </summary>
+        public static HttpContext HttpContext => CatchOrDefault(() => ServiceProvider?.GetService<IHttpContextAccessor>()?.HttpContext);
+        /// <summary>
+        /// 获取请求上下文用户
+        /// </summary>
+        public static ClaimsPrincipal User => HttpContext?.User;
+        /// <summary>
+        /// 获取用户名
+        /// </summary>
+        public static string UserName => User?.Identity?.Name;
+        /// <summary>
+        /// 获取Web主机环境
+        /// </summary>
+        public static IWebHostEnvironment WebHostEnvironment => InternalApp.WebHostEnvironment; 
+        /// <summary>
+        /// 获取全局配置
+        /// </summary>
+        public static IConfiguration Configuration => CatchOrDefault(() => InternalApp.Configuration, new ConfigurationBuilder().Build());
+        /// <summary>
+        /// 获取请求生命周期的服务
+        /// </summary>
+        /// <typeparam name="TService"></typeparam>
+        /// <returns></returns>
+        public static TService GetService<TService>()
+            where TService : class
+        {
+            return GetService(typeof(TService)) as TService;
+        }
+
+        /// <summary>
+        /// 获取请求生命周期的服务
+        /// </summary>
+        /// <param name="type"></param>
+        /// <returns></returns>
+        public static object GetService(Type type)
+        {
+            return ServiceProvider.GetService(type);
+        }
+
+        /// <summary>
+        /// 获取请求生命周期的服务
+        /// </summary>
+        /// <typeparam name="TService"></typeparam>
+        /// <returns></returns>
+        public static TService GetRequiredService<TService>()
+            where TService : class
+        {
+            return GetRequiredService(typeof(TService)) as TService;
+        }
+
+        /// <summary>
+        /// 获取请求生命周期的服务
+        /// </summary>
+        /// <param name="type"></param>
+        /// <returns></returns>
+        public static object GetRequiredService(Type type)
+        {
+            return ServiceProvider.GetRequiredService(type);
+        }
+
+        /// <summary>
+        /// 处理获取对象异常问题
+        /// </summary>
+        /// <typeparam name="T">类型</typeparam>
+        /// <param name="action">获取对象委托</param>
+        /// <param name="defaultValue">默认值</param>
+        /// <returns>T</returns>
+        private static T CatchOrDefault<T>(Func<T> action, T defaultValue = null)
+            where T : class
+        {
+            try
+            {
+                return action();
+            }
+            catch
+            {
+                return defaultValue ?? null;
+            }
+        }
+    }
+}