重构代码：优化json返回值，提高传输效率

Bootstrap.Admin/Controllers/Api/CategoryController.cs

@@ -1,5 +1,4 @@
 using Bootstrap.DataAccess;
-using Bootstrap.Security;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 using System.Collections.Generic;
@@ -15,7 +14,7 @@ namespace Bootstrap.Admin.Controllers.Api
         /// <returns></returns>
         [HttpGet]
         [AllowAnonymous]
-        public IEnumerable<BootstrapDict> Get()
+        public IEnumerable<string> Get()
         {
             return DictHelper.RetrieveCategories();
         }

Bootstrap.Admin/wwwroot/js/dicts.js

@@ -26,10 +26,8 @@
     $.bc({
         url: "api/Category",
         callback: function (result) {
-            var data = result.map(function (ele, index) { return ele.Category; });
             $('#txt_dict_cate').typeahead({
-                source: data,
-                autoSelect: true
+                source: result
             });
         }
     });

Bootstrap.DataAccess/DictHelper.cs

@@ -95,18 +95,18 @@ namespace Bootstrap.DataAccess
         /// 获取字典分类名称
         /// </summary>
         /// <returns></returns>
-        public static IEnumerable<BootstrapDict> RetrieveCategories()
+        public static IEnumerable<string> RetrieveCategories()
         {
             return CacheManager.GetOrAdd(RetrieveCategoryDataKey, key =>
             {
-                var ret = new List<BootstrapDict>();
+                var ret = new List<string>();
                 string sql = "select distinct Category from Dicts";
                 DbCommand cmd = DBAccessManager.SqlDBAccess.CreateCommand(CommandType.Text, sql);
                 using (DbDataReader reader = DBAccessManager.SqlDBAccess.ExecuteReader(cmd))
                 {
                     while (reader.Read())
                     {
-                        ret.Add(new BootstrapDict() { Category = (string)reader[0] });
+                        ret.Add((string)reader[0]);
                     }
                 }
                 return ret;