add admin

Examples/website/FreeSql.Site.DAL/Helper/AppSettingsManager.cs

@@ -0,0 +1,44 @@
+using System.IO;
+using Microsoft.Extensions.Configuration;
+using Newtonsoft.Json;
+
+namespace FreeSql.Site.DAL
+{
+    /// <summary>
+    /// 配置管理器
+    /// </summary>
+    public static class AppSettingsManager
+    {
+        private static IConfiguration _configuration;
+
+        static AppSettingsManager()
+        {
+            BuildConfiguration();
+        }
+
+        private static void BuildConfiguration()
+        {
+            var builder = new ConfigurationBuilder().SetBasePath(Directory.GetCurrentDirectory())
+                .AddJsonFile("appsettings.json", false).AddJsonFile("appsettings.Development.json", true);
+            _configuration = builder.Build();
+        }
+
+        /// <summary>
+        /// 读取指定节点信息
+        /// </summary>
+        /// <param name="key">节点名称，多节点以:分隔</param>
+        public static string Get(string key)
+        {
+            return _configuration[key];
+        }
+
+        /// <summary>
+        /// 读取指定节点信息
+        /// </summary>
+        public static T Get<T>(string key)
+        {
+            string json = Get(key);
+            return JsonConvert.DeserializeObject<T>(json);
+        }
+    }
+}