从查询创建下拉列表 - JSON

Question

我在javascript中执行了一个查询任务，查询单个服务中的2个层。它返回一些值，包括一个本地权限。我已经创建了一个具有该本地权限名称的JSON文件，我想要做的是创建一个下拉列表，显示JSON字符串中包含的本地权限URL值（由queryTask生成）。这是queryTask代码：

     var queryTask = new QueryTask("http://rest/services/live/SEARCH/MapServer/2");
     var query = new Query();
     query.returnGeometry = true;
     query.outFields = [
       "POSTCODE"
     ];

     on(dom.byId("execute"), "click", execute);

     function execute() {
         //
         query.text = dom.byId("Postcode").value;
         queryTask.execute(query, showResults);
     };

     function showResults(results) {
         var resultItems = [];
         var inBuffer = [];
         var resultCount = results.features.length;
         for (var i = 0; i < resultCount; i++) {
             inBuffer.push(results.features[i].geometry);
             var featureAttributes = results.features[i].attributes;
             var graphic = results.features[i];
             graphic.setSymbol(symbol);
             map.graphics.add(graphic);

             var strNum = 100;
             var newExtent = graphic.geometry.getExtent();
             newExtent.xmin = newExtent.xmin - strNum;
             newExtent.ymin = newExtent.ymin - strNum;
             newExtent.xmax = newExtent.xmax + strNum;
             newExtent.ymax = newExtent.ymax + strNum;
             map.setExtent(newExtent);

             for (var attr in featureAttributes){
                 resultItems.push("<b>" + attr + ":</b>  " + featureAttributes[attr] + "<br>");
             }
             resultItems.push("<br>");
         }
         var query2 = new Query();
         query2.geometry = geometryEngine.union(inBuffer);
         query2.returnGeometry = false;
         query2.outFields = ["NAME", "OBJECTID"];
         var queryTask2 = new QueryTask("http://rest/services/live/SEARCH/MapServer/15");
         //resultItems.push("Before process");
         queryTask2.execute(query2, function (results2) {
             //resultItems.push("Before");
             for (var j = 0; j < results2.features.length; j++) {
                 resultItems.push("<b>Local Authority:</b>  " + results2.features[j].attributes.NAME + "<br/>" + "<b>Object id:</b>" + results2.features[j].attributes.OBJECTID + "<br/>");
             }
             //resultItems.push("After");
             var lstr = "";
             for (var j = 2; j <= resultItems.length; j++) {
             lstr = lstr + resultItems[j] + "" + j.toString();

             }
             dom.byId("info").innerHTML = lstr;

         });

这是JSON如何构建的一个例子：

{   "Local authority": {
    "objectid": "1",
    "name": "Kent",
    "service": [
        "Libraries": "url",
        "Bins": "url",
        "Dog walking": "url"
     ]
},
    "objectid": "2",
    "name": "Devon",
    "service": [
        "Libraries": "url",
        "Bins": "url",
        "Dog walking": "url"
       ]

        }

我希望有人可以提供帮助 - 花了一整天时间，我无法解决这个问题。谢谢。