我必须向Google map 添加多个标记，但数据位于外部json文件中。
目前，我正在尝试使用jquery getJSON运行它。但是它根本无法工作，并且控制台不会返回任何错误!
google.maps.event.addDomListener(window, 'load', initialize);
function initialize() {
var map_canvas = document.getElementById('map1');
var map_options = {
center: new google.maps.LatLng(44.5403, -78.5463),
zoom: 8,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(map_canvas, map_options);
$.getJSON('map_points.json', function(data) {
$.each( data.points, function(i, value) {
var myLatlng = new google.maps.LatLng(value.lat, value.lon);
alert(myLatlng);
var marker = new google.maps.Marker({
position: myLatlng,
map: map,
title:"Hello World!"
});
});
});
} //End initialize()
还有杰森
{
"points":[
{"id":1,"lat":44.5403,"lon":-79.5463},
{"id":2,"lat":45.5403,"lon":-78.5463},
{"id":3,"lat":45.5403,"lon":-76.5463},
{"id":4,"lat":45.5403,"lon":-77.5463}
]
}
最佳答案
我刚刚测试了以下代码，并且可以正常工作。你试一试 :
<html>
<head>
<title>Eg. Google Maps Marker using External JSON</title>
<style type="text/css">
html { height: 100% }
body { height: 100%; margin: 0; padding: 0 }
#map_canvas { height: 100% }
</style>
<script type="text/javascript" src="http://code.jquery.com/jquery-latest.min.js"></script>
<script type="text/javascript" src = "http://maps.google.com/maps/api/js?sensor=false">
</script>
<script type="text/javascript">
function initialize() {
var mapOptions = {
center: new google.maps.LatLng(44.5403, -78.5463),
zoom: 5,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var infoWindow = new google.maps.InfoWindow();
var map = new google.maps.Map(document.getElementById("map_canvas"), mapOptions);
$.getJSON('map_points.json', function(data) {
$.each( data.points, function(i, value) {
var myLatlng = new google.maps.LatLng(value.lat, value.lon);
alert(myLatlng);
var marker = new google.maps.Marker({
position: myLatlng,
map: map,
title: "text "+value.lon
});
});
});
}
</script>
</head>
<body onload="initialize()">
<form id="form1" runat="server">
<div id="map_canvas" style="width: 500px; height: 400px"></div>
</form>
</body>
</html>
关于javascript - 从外部json向Google map 添加标记？，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/21401774/