Cesium.when(promise, function (layer) {
            viewer.flyTo(layer);
            layer.indexedDBSetting.isAttributesSave = true;//保存属性
            var handler = new Cesium.ScreenSpaceEventHandler(scene.canvas);
            handler.setInputAction(function (e) {
                if (layer.getSelection().length > 0) {
                    const selectedId = Number(layer.getSelection()[0])
                    layer.getAttributesById([selectedId]).then(function (feature) {
                        alert(feature["fw_entiid"]);
                    })
                }
            }, Cesium.ScreenSpaceEventType.LEFT_CLICK)
        }, function (e) {
            
        });

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