如何在arcgis 4.0中的(lng，lat)位置打开弹出窗口

require([
  "esri/Map",
  "esri/views/MapView",
  "esri/layers/FeatureLayer",
  "esri/PopupTemplate",
  "esri/tasks/QueryTask",
  "esri/tasks/support/Query"
], function(Map, MapView, FeatureLayer, PopupTemplate, QueryTask, Query) {
  // 创建地图对象
  var map = new Map({
    basemap: "streets"
  });

  // 创建弹出窗口对象
  var popupTemplate = new PopupTemplate({
    title: "{Name}",
    content: "<p>经度: {lng}</p><p>纬度: {lat}</p>"
  });

  // 创建图层对象
  var featureLayer = new FeatureLayer({
    url: "https://services.arcgis.com/{your-service-url}/FeatureServer/0",
    outFields: ["*"],
    popupTemplate: popupTemplate
  });

  // 创建地图视图
  var view = new MapView({
    container: "viewDiv",
    map: map,
    zoom: 10,
    center: [lng, lat] // 设置地图中心点
  });

  // 监听地图视图的点击事件
  view.on("click", function(event) {
    // 获取点击的坐标
    var lng = event.mapPoint.longitude;
    var lat = event.mapPoint.latitude;

    // 创建查询任务
    var queryTask = new QueryTask({
      url: "https://services.arcgis.com/{your-service-url}/FeatureServer/0"
    });

    // 创建查询对象
    var query = new Query();
    query.geometry = event.mapPoint;
    query.outFields = ["*"];

    // 执行查询
    queryTask.execute(query).then(function(result) {
      if (result.features.length > 0) {
        // 获取查询结果中的要素属性
        var attributes = result.features[0].attributes;

        // 设置弹出窗口的内容
        popupTemplate.content = "<p>经度: " + lng + "</p><p>纬度: " + lat + "</p>";

        // 打开弹出窗口
        view.popup.open({
          location: event.mapPoint,
          content: attributes,
          title: attributes.Name
        });
      }
    });
  });

  // 将图层添加到地图中
  map.add(featureLayer);
});