百度地图API实现地图定位
1、引用JS:
<script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=87be68605271c5e4cfe712787041be0a"></script>
2、HTML:
东经: <input name="longitude" onkeyup="dingwei()" value="@row["longitude"].ToString()" type="text"/> <span class="valid nullable" rule="number" msg="请填写数字"></span> 北纬: <input name="latitude" onkeyup="dingwei()" value="@row["latitude"].ToString()" type="text"/> <span class="valid nullable" rule="number" msg="请填写数字"></span>
3、JS代码:
<script type="text/javascript"> var map; var level = 17; var marker; $(function () { //地图定位 map = new BMap.Map("map"); var top_right_navigation = new BMap.NavigationControl({ anchor: BMAP_ANCHOR_TOP_RIGHT, type: BMAP_NAVIGATION_CONTROL_SMALL }); //右上角,仅包含平移和缩放按钮 map.addControl(top_right_navigation); map.addEventListener("zoomend", function () { level = map.getZoom(); }); var point = new BMap.Point(117.218, 31.861); map.centerAndZoom(point, level); marker = new BMap.Marker(point, { enableDragging: true }); marker.addEventListener("dragging", function (evt) { $("input[name='longitude']").val(evt.point.lng) $("input[name='latitude']").val(evt.point.lat) }); map.addOverlay(marker); dingwei(); }); //地图定位 function dingwei() { if (SimpoValidate.valid()) { //验证输入 var inputlongitude = $("input[name='longitude']"); var inputlatitude = $("input[name='latitude']"); if ($.trim(inputlongitude.val()) != "" && $.trim(inputlatitude.val()) != "") { var longitude = parseFloat(inputlongitude.val()); var latitude = parseFloat(inputlatitude.val()); var point = new BMap.Point(longitude, latitude); map.centerAndZoom(point, level); marker.setPosition(point); } } } </script>