百度地图插件开发使用三 及jquery function，a.b排序等

//加载门店
function queryStoreList(id){
    showLoad();        
    var search = $("#search").val();
    var cityId = $("#cityId").val();
    if(id !=null && id !=''){
        cityId=id;
    }
    $.ajax({
        url:ctx+"/weixin/store/queryStoreList",
        data:{
            wechatId : ${param.wechatId},                
            search : search,
            cityId : cityId
        },
        success:function(data){
            hideLoad();
            if(data != null && data.length > 0){
                var html = "";
                $.each(data,function(i,a){//计算距离
 //$.each(data,function(i,a){      【data对象也可以写在$(data).each(function(i,a){  方法体  })】   })循环 
                    var distance=getFlatternDistance(a.latitude,a.longitude,nowLat,nowLng);
//getFlatternDistance函数 根据两个地点之间的经纬度算出距离    
                    distance=distance.toFixed(0);  //保留小数点后面的位数
                    a.distance=distance;
                    })
                    data=data.sort(function(a,b){//按照路程从小到大排序
 //data.sort(function(a,b){ 【data.sort(参数序列) 】   默认是正序                })
                        return a.distance-b.distance;
                    });
                $.each(data,function(i,a){
                                    html += "<div class='list_ce clearfix'>";
//class='list_ce' clearfix' 类选择器作为样式选择了，在CSS这两哥样式做了定义，clearFix有去除浮标的作用，防止模块位移
                                    html += "<ul class='clearfix'>";
                                    html += "<li class='one'><img src='${res}/upload/"+a.wechatId+"/"+a.image+"'></li>";
                                    html += "<li class='two'>";
                                    var dis=Number(a.distance);
                                    if(dis >1000){
                                        dis=dis/1000
                                        dis=dis+"千米";
                                    }else{
                                        dis=dis+"米";
                                    }
                                    html += "<h2>"+a.name+ dis+"<span><a href='tel:"+a.phone+"'><img 
                                          src='${res}/template/002/images/m2.png'></a></span></h2>";
                                    html += "<p class='fonts'>地址："+a.address+" </p>";
                                    html += "<p class='ft'>电话：<a href='tel:"+a.phone+"'>"+a.phone+"</a></p>";
                                    html += "</li>";
                                    html += "<li class='tre'>";
                                    html += "<p onclick='goGps("+a.id+")'><img src='${res}/template/002/images/m1.png'></p>";
                                    html += "</li>";
                                    html += "</ul>";
                                    html += "</div>";
                                    html += "<div class='bres'></div>"; 
                                })
                 $("#menuList").empty().append(html);
 //清空后重新赋值
            }else{
                
            }
        }
    })
}

函数：

getFlatternDistance根据两个地点的位置的经纬度获取距离

var nowLng;
var nowLat;
var EARTH_RADIUS = 6378137.0;  //单位M
var PI = Math.PI;
function getRad(d){
    return d*PI/180.0;
}

//根据俩地经纬度计算距离
function getFlatternDistance(lat1,lng1,lat2,lng2){
    var f = getRad(parseFloat(lat1 + lat2)/2);
    var g = getRad(parseFloat(lat1 - lat2)/2);
    var l = getRad(parseFloat(lng1 - lng2)/2);
    var sg = Math.sin(g);
    var sl = Math.sin(l);
    var sf = Math.sin(f);
    var s,c,w,r,d,h1,h2;
    var a = EARTH_RADIUS;
    var fl = 1/298.257;
    sg = sg*sg;
    sl = sl*sl;
    sf = sf*sf;
    s = sg*(1-sl) + (1-sf)*sl;
    c = (1-sg)*(1-sl) + sf*sl;
    w = Math.atan(Math.sqrt(s/c));
    r = Math.sqrt(s*c)/w;
    d = 2*w*a;
    h1 = (3*r -1)/2/c;
    h2 = (3*r +1)/2/s;
    return d*(1 + fl*(h1*sf*(1-sg) - h2*(1-sf)*sg));
}

获取当前位置的经纬度

// 百度地图定位功能
function queryLocation(){
    var map = new BMap.Map("allmap");
    var point = new BMap.Point(116.331398,39.897445);  //设置初始中心点
    var geolocation = new BMap.Geolocation();    //获得当前位置的对象
    geolocation.getCurrentPosition(function(r){
        if(this.getStatus() == BMAP_STATUS_SUCCESS){
            var mk = new BMap.Marker(r.point);
             nowLng=r.point.lng;
             nowLat=r.point.lat;
        }
        else {
            alert('failed'+this.getStatus());
        }        
    },{enableHighAccuracy: true})
}