百度地图API 模糊搜索、默认定位、双击获取经纬度

<script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=k1t5GeQivZwSE4vMgPZSxE9UuB2c1b1o&s=1"></script>
<!--<script src="https://api.map.baidu.com/api?v=2.0&ak=WdWbcurWMKb1uFGfhOjj4dfDGKwBvgk9&s=1"></script>-->

<!-- 如果需要拖拽鼠标进行操作，可引入以下js文件 -->
<script type="text/javascript" src="http://api.map.baidu.com/library/RectangleZoom/1.2/src/RectangleZoom_min.js"></script>

<div id="allmap" style="width: 800px;height: 400px;"></div>
<div id="r-result">请输入:<input type="text" id="suggestId" size="30" value="庆云县" style="width:300px;" /></div>
<div id="searchResultPanel" style="border:1px solid #C0C0C0;width:150px;height:auto; display:none;"></div>

<script type="text/javascript">

    var shop_lon_and_ait = "{{$data.lon_and_lat}}" //后端传过来的经纬度

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

    var default_quyu = "山东省德州市庆云县";  //默认区域地址
    var default_level = 15;  //默认放大级别

    if (shop_lon_and_ait != "") {

         lon_and_ait_arr = shop_lon_and_ait.split(","); //字符分割
         lon = lon_and_ait_arr[0]
         ait = lon_and_ait_arr[1]
         default_quyu = new BMap.Point(lon,ait);
         default_level = 25
         map.centerAndZoom(default_quyu,default_level);
         map.enableScrollWheelZoom(true);
         map.clearOverlays();
         var new_point = new BMap.Point(lon,ait);
         var marker = new BMap.Marker(new_point);  // 创建标注
         map.addOverlay(marker);              // 将标注添加到地图中
         map.panTo(new_point);
    }



    function G(id) {
        return document.getElementById(id);
    }

    map.enableScrollWheelZoom();   //启用滚轮放大缩小，默认禁用
    map.enableContinuousZoom();    //启用地图惯性拖拽，默认禁用
    // var myDrag = new BMapLib.RectangleZoom(map, {
    //     followText: "拖拽鼠标进行操作"
    // });
    // myDrag.open();  //开启拉框放大
    // myDrag.close();  //关闭拉框放大

    map.centerAndZoom(default_quyu,default_level);   // 初始化地图,设置城市和地图级别。

    var ac = new BMap.Autocomplete(    //建立一个自动完成的对象
        {"input" : "suggestId"
            ,"location" : map
        });

    map.addEventListener("click",function(e){
       // map.clearOverlays();

        $('#lon_and_lat').val(e.point.lng + ',' + e.point.lat);
    });



    ac.addEventListener("onhighlight", function(e) {  //鼠标放在下拉列表上的事件
        var str = "";
        var _value = e.fromitem.value;
        var value = "";
        if (e.fromitem.index > -1) {
            value = _value.province +  _value.city +  _value.district +  _value.street +  _value.business;
        }
        str = "FromItem<br />index = " + e.fromitem.index + "<br />value = " + value;

        value = "";
        if (e.toitem.index > -1) {
            _value = e.toitem.value;
            value = _value.province +  _value.city +  _value.district +  _value.street +  _value.business;
        }
        str += "<br />ToItem<br />index = " + e.toitem.index + "<br />value = " + value;
        G("searchResultPanel").innerHTML = str;
    });



    var myValue;
    ac.addEventListener("onconfirm", function(e) {    //鼠标点击下拉列表后的事件
        var _value = e.item.value;
        myValue = _value.province +  _value.city +  _value.district +  _value.street +  _value.business;
        G("searchResultPanel").innerHTML ="onconfirm<br />index = " + e.item.index + "<br />myValue = " + myValue;
        setPlace();
    });

    function setPlace(){

        map.clearOverlays();    //清除地图上所有覆盖物
        function myFun(){
            var pp = local.getResults().getPoi(0).point;    //获取第一个智能搜索的结果
          //  console.log('经度：'+pp.lng, '纬度：'+pp.lat);
            $('#lon_and_lat').val(pp.lng + ',' + pp.lat);
            map.centerAndZoom(pp, 18);
            map.addOverlay(new BMap.Marker(pp));    //添加标注
        }
        var local = new BMap.LocalSearch(map, { //智能搜索
            onSearchComplete: myFun
        });
        local.search(myValue);
    }

</script>