取到的数据是null，下面我代码：
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script type="text/javascript" src="./assets/libs/sm/libs/SuperMap.Include.js"></script>
<script type="text/javascript">
//声明变量map、layer、url
var map, layer, layerImage, vectorLayer, themeLayer, utfgrid, utfgrid2,
url = ["http://localhost:8090/iserver/services/map-baidu/rest/maps/normal",
"http://localhost:8090/iserver/services/map-reservoir2/rest/maps/lc@image",
"http://localhost:8090/iserver/services/map-OSM/rest/maps/normal",
"http://localhost:8090/iserver/services/map-reservoir2/rest/maps/WatchPoint@data",
"http://localhost:8090/iserver/services/map-LinCangDiTu/rest/maps/Level17@testB",
"http://localhost:8090/iserver/services/map-reservoir/rest/maps/isoMap"
];
//创建地图控件
function init() {
map = new SuperMap.Map("map", {
controls: [
new SuperMap.Control.ScaleLine(),
//new SuperMap.Control.Zoom(),
new SuperMap.Control.LayerSwitcher(),
new SuperMap.Control.Navigation({ //添加导航控件到map
dragPanOptions: {
enableKinetic: true //拖拽动画
}
})
],
allOverlays: true,
//projection: "WGS_1984_World_Mercator"
});
//初始化复杂缩放控件类
panzoombar = new SuperMap.Control.PanZoomBar();
// 是否固定缩放级别为[0,16]之间的整数，默认为false
panzoombar.forceFixedZoomLevel = true;
//是否显示滑动条，默认值为false
panzoombar.showSlider = true;
/*点击箭头移动地图时，所移动的距离占总距离（上下移动的总距离为高度，左右移动的总距离为宽度）
的百分比，默认为null。 例如：如果slideRatio 设为0.5, 则垂直上移地图半个地图高度.*/
panzoombar.slideRatio = 0.5;
//设置缩放条滑块的高度，默认为120
panzoombar.sliderBarHeight = 180;
//设置缩放条滑块的宽度，默认为13
panzoombar.sliderBarWidth = 17;
map.addControl(panzoombar);
//创建分块动态REST图层，该图层显示iserver 8C 服务发布的地图,
//其中"world"为图层名称，url图层的服务地址，{transparent: true}设置到url的可选参数
layer = new SuperMap.Layer.TiledDynamicRESTLayer("地图", url[4], {
cacheEnabled: true,
transparent: true
}, {
maxResolution: "auto"
});
utfgrid2 = new SuperMap.Layer.UTFGrid("雨量水位站", url[4], {
layerName: "water@testB",
utfTileSize: 256,
pixcell: 8,
isUseCache: true
}, {
utfgridResolution: 8
});
utfgrid2.maxExtent = layer.maxExtent;
layer.events.on({
"layerInitialized": addLayer
});
control = new SuperMap.Control.UTFGrid({
layers: [utfgrid2],
callback: callback,
handlerMode: "move"
});
map.addControl(control);
}
function callback(infoLookup, loc, pixel) {
console.log("infoLookup", infoLookup);
console.log("loc", loc);
console.log("pixel", pixel);
if (infoLookup) {
var info;
for (var idx in infoLookup) {
info = infoLookup[idx];
if (info && info.data) {
console.log("infoLookup", infoLookup);
console.log("loc", loc);
console.log("pixel", pixel);
}
}
}
}
function addLayer() {
map.addLayers([layer, utfgrid2]);
var lonLat1 = new SuperMap.LonLat(11046444.664073, 2790516.8346258);
map.setCenter(lonLat1, 2);
}
//
</script>
</head>
<body onload="init()">
<div id="map" style="position:absolute;left:0px;right:0px;width:100%;height:100%;">
</div>
</body>
</html>
