JavaScript 实现地图搜索功能

需求：输入框输入地址点击查询，查询结果在地图定位到查询位置，显示查询位置的经纬度

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

    <title>***</title>

    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">

    <script type="text/javascript" src="http://api.map.baidu.com/api?v=1.3"></script>

    <script type="text/javascript" src="http://api.map.baidu.com/api?ak=PlhFWpA02aoURjAOpnWcRGqw7AI8EEyO&v=2.0&services=false"></script>

</head>

<body>

    <div style="width:730px;margin:auto;">

        <p style="font-family:'楷体';">

            <b>要查询的地址：</b><input id="text_" type="text" value="" style="margin:0;padding:10px 0;border:1px solid rgb(180, 180, 180);border-radius:8px;width:250px;height:10px;font-size:16px;text-align:center;"/>

            <input type="button" value="查询" onclick="searchByStationName();" style="width:85px;height:23px;border-color:#ccc;border-radius:25px;"/>

        </p>

        <p style="font-family:'楷体';">查询结果(经纬度)：<input id="result_" type="text" style="border:0;" /></p>

        <center>

        <div id="container"

            style="position: absolute;margin-top:30px;width:60%;height:80%;top:80;border: 1px solid gray;overflow:hidden;">

        </div>

        </center>

    </div>

</body>

<script type="text/javascript">

    var map = new BMap.Map("container");

    map.centerAndZoom("广州市", 12);

    map.enableScrollWheelZoom();

    map.enableContinuousZoom();

    map.addControl(new BMap.NavigationControl());

    map.addControl(new BMap.OverviewMapControl());

    map.addControl(new BMap.OverviewMapControl({ isOpen: true, anchor: BMAP_ANCHOR_BOTTOM_RIGHT }));

    var localSearch = new BMap.LocalSearch(map);

    localSearch.enableAutoViewport();

    function searchByStationName() {

        map.clearOverlays();

        var keyword = document.getElementById("text_").value;

        localSearch.setSearchCompleteCallback(function (searchResult) {

            var poi = searchResult.getPoi(0);

            document.getElementById("result_").value = poi.point.lng + "," + poi.point.lat;

            map.centerAndZoom(poi.point, 13);

            var marker = new BMap.Marker(new BMap.Point(poi.point.lng, poi.point.lat));

            map.addOverlay(marker);

            var content = document.getElementById("text_").value + "<br/><br/>经度：" + poi.point.lng + "<br/>纬度：" + poi.point.lat;

            var infoWindow = new BMap.InfoWindow("<p style='font-size:14px;'>" + content + "</p>");

            marker.addEventListener("click", function () { this.openInfoWindow(infoWindow); });

             marker.setAnimation(BMAP_ANIMATION_BOUNCE); //跳动的动画

        });

        localSearch.search(keyword);

    }

</script>

</html>