我正在尝试使用来自 Json 响应的数据在谷歌地图上绘制标记。我整天都在 Stack Overflow 上寻找答案,但没有找到适合我的解决方案。
我猜这与我提取 Lat & Lng 的方式有关,但我无法理解它。下面是我的代码和 Json,Json 来自 API。
我的代码中的错误在哪里?
脚本
<script>
function initialize() {
var myOptions = {
zoom: 4,
center: new google.maps.LatLng(34.397, 150.644),
mapTypeId: google.maps.MapTypeId.ROADMAP
};
map = new google.maps.Map(document.getElementById("map"), myOptions);
};
function getLocations() {
$.getJSON("URL", function (json) {
$.each(json["resultsPage"]["results"]["event"], function(i, entry){
addMarker(entry.location.lat,entry.location.lng);
});
});
}
function addMarker(lat,lng) {
marker = new google.maps.Marker({
position: new google.maps.LatLng(lat,lng),
map: map,
});
markersArray.push(marker);
}
</script>
json响应
被告知使用以下代码请求 Json 数据。如果我在最后留下问号,当我通过http://jsonlint.com运行它时会收到一条无效消息,因为 Json 的开头有一个问号。把它拿出来似乎可以解决问题,但我不是 100% 确定这样可以吗?
$.getJSON("http://api.songkick.com/api/3.0/events.json?location=clientip&apikey={your_api_key}&jsoncallback=?",
function(data){
// data is JSON response object
});
如果我在最后留下问号,当我通过http://jsonlint.com运行它时会收到一条无效消息,因为 Json 的开头有一个问号。把它拿出来似乎可以解决问题,但我不是 100% 确定这样可以吗?
当我在调试器中查看代码时,我得到“SyntaxError: Unexpected token ':'”,但这个响应来自 API,所以我不确定我能做些什么?
{
"resultsPage": {
"status": "ok",
"results": {
"event": [
{
"type": "Concert",
"status": "ok",
"performance": [
{
"artist": {
"displayName": "Arcade Fire",
"uri": "http://www.songkick.com/artists/66758-arcade-fire?utm_source=16289&utm_medium=partner",
"identifier": [
{
"mbid": "52074ba6-e495-4ef3-9bb4-0703888a9f68",
"href": "http://api.songkick.com/api/3.0/artists/mbid:52074ba6-e495-4ef3-9bb4-0703888a9f68.json"
}
],
"id": 66758
},
"billingIndex": 1,
"billing": "headline",
"displayName": "Arcade Fire",
"id": 29913729
},
{
"artist": {
"displayName": "Doody and Kami",
"uri": "http://www.songkick.com/artists/6334389-doody-and-kami?utm_source=16289&utm_medium=partner",
"identifier": [],
"id": 6334389
},
"billingIndex": 2,
"billing": "support",
"displayName": "Doody and Kami",
"id": 29913734
},
{
"artist": {
"displayName": "Leah Gordon",
"uri": "http://www.songkick.com/artists/6334394-leah-gordon?utm_source=16289&utm_medium=partner",
"identifier": [],
"id": 6334394
},
"billingIndex": 3,
"billing": "support",
"displayName": "Leah Gordon",
"id": 29913739
}
],
"venue": {
"metroArea": {
"country": {
"displayName": "Canada"
},
"state": {
"displayName": "QC"
},
"displayName": "Montreal",
"uri": "http://www.songkick.com/metro_areas/27377-canada-montreal?utm_source=16289&utm_medium=partner",
"id": 27377
},
"lat": 45.5014288,
"displayName": "Phi Center",
"lng": -73.5564459,
"uri": "http://www.songkick.com/venues/1973969-phi-center?utm_source=16289&utm_medium=partner",
"id": 1973969
},
"popularity": 0,
"location": {
"lat": 45.5014288,
"lng": -73.5564459,
"city": "Montreal, QC, Canada"
},
"start": {
"time": null,
"date": "2013-02-23",
"datetime": null
},
"displayName": "Arcade Fire with Doody and Kami and Leah Gordon at Phi Center (February 23, 2013)",
"uri": "http://www.songkick.com/concerts/15215934-arcade-fire-at-phi-center?utm_source=16289&utm_medium=partner",
"id": 15215934
}
]
},
"perPage": 50,
"page": 1,
"totalEntries": 1
}
}
任何帮助将不胜感激。谢谢