Baidu Map adds a right-click menu to the map (determining whether it is a marker)_javascript skills

No more nonsense, let me just post the code for you.

js:

var s;//经度
var w;//纬度
map.addEventListener("rightclick",function(e){
if(e.overlay){//判断右键单击的是否是marker
}else{
s = e.point.lng;//经度
w = e.point.lat;//维度
RightClick();//右键单击map出现右键菜单事件
}
});
//右键单击map出现右键菜单事件
function RightClick(){
//alert('你点击的是地图');
var createMarker = function(map){//右键更新站名
if (confirm("要新建站点吗？")){
if(true){
$(".AllSetMassage").show();
}
} 
};
var markerMenu=new BMap.ContextMenu();
markerMenu.addItem(new BMap.MenuItem('新建站点',createMarker.bind(map)));
map.addContextMenu(markerMenu);//给标记添加右键菜单
} 

Effect:

Right click on map (non-marker)

Right click on marker:

PS: Baidu Maps adds right-click menus (delete, update) for multiple markers

js:

$.getJSON("./GetStationPlaceServlet",function(json){ 
for(var i=;i<json.length;i++){
var obj = eval(json);
//获取经纬度
fStationlon = parseFloat(obj[i].Stationlon);
fStationlat = parseFloat(obj[i].Stationlat); 
var pt = new BMap.Point(fStationlon,fStationlat);
var myIcon = new BMap.Icon("photo/station.png",new BMap.Size(,),{ anchor: new BMap.Size(, ) });
var marker = new BMap.Marker(pt,{icon:myIcon}); // 创建标注
map.addOverlay(marker); //将标注添加到地图中
var strRes = parseFloat(obj[i].StationId);
addClickHandler(strRes,marker);//左键单击marker事件
RightClickHandler(strRes,marker);//右键单击marker出现右键菜单事件
RightClick();//右键地图出现右键菜单事件
}
});
//右键单击marker出现右键菜单事件
function RightClickHandler(stationId,marker){
var removeMarker = function(e,ee,marker){//右键删除站点
var json={
"StationId":stationId,
};
if (confirm("要删除站点"+stationId+"吗？")){
if(true){
$.getJSON("./DeleteStationServlet",{json:JSON.stringify(json)},function(json){
if(json.result==true){
alert("删除站点"+stationId+"成功！");
map.removeOverlay(marker); //将地图中的标记删除
} 
});
}
} 
};
var updateMarker = function(marker){//右键更新站名
if (confirm("要修改站点"+stationId+"的站名吗？")){
if(true){
$(".AllUpdateMassage").show();
$("#stationId").val(stationId);
}
} 
};
var markerMenu=new BMap.ContextMenu();
markerMenu.addItem(new BMap.MenuItem('删除站点',removeMarker.bind(marker)));
markerMenu.addItem(new BMap.MenuItem('修改站名',updateMarker.bind(marker)));
marker.addContextMenu(markerMenu);//给标记添加右键菜单
}
//鼠标左键单击marker事件
function addClickHandler(stationId,marker){
marker.addEventListener("click",function(e){ 
var p = marker.getPosition(); //获取marker的位置
var staId={
"StationId":stationId,
};
$.getJSON("./GetStationInfoServlet",{json:JSON.stringify(staId)},function(json){
for(var i=;i<json.length;i++){
var obj = eval(json);
stationName = obj[i].stationName;
var content = "站点编号："+stationId+"<br/>"+ "站点名称："+stationName;
openInfo(content,e);
}
});
});
}
//左键单击marker弹出窗口事件
function openInfo(content,e){
var p = e.target;
var point = new BMap.Point(p.getPosition().lng, p.getPosition().lat);
var infoWindow = new BMap.InfoWindow(content,opts); // 创建信息窗口对象 
map.openInfoWindow(infoWindow,point); //开启信息窗口
}
//修改站点站名
function update(){
var stationId=$("#stationId").val();//编号
var stationName=$(".AllUpdateMassage_name").val();//名字
var json={
"StationId":stationId,
"StationName":stationName
}; 
$.getJSON("./UpdateStationServlet",{json:JSON.stringify(json)},function(json){
if(json.result==true){
alert("站点"+stationId+"站名修改成功！");
$(".AllUpdateMassage").hide();
} 
else{
alert("失败！");
}
});
}

Rendering:

This information has been deleted from the map and database:

When I was implementing this, I found that someone could only add a right-click menu to a marker. I don't have this problem. The principle seems to be about closures or something. I am a newbie and I don’t know it very well. I hope someone who understands will give me some advice.