Youtube 视频时长 API v3

Question

大家好，我对 youtube 的 api v3 有一点小问题。

问题是，如果json有这个结构

{
 "kind": "youtube#videoListResponse",
 "etag": "\"tbWC5XrSXxe1WOAx6MK9z4hHSU8/1jshwBhrF6O49W3oUmNF7rmkgAQ\"",
 "pageInfo": {
  "totalResults": 1,
  "resultsPerPage": 1
 },
 "items": [
  {
   "kind": "youtube#video",
   "etag": "\"tbWC5XrSXxe1WOAx6MK9z4hHSU8/Zji9LPuiDCpb4GjgPpzdGgf85ws\"",
   "id": "3wFq1-pK05o",
   "contentDetails": {
    "duration": "PT1M1S",
    "dimension": "2d",
    "definition": "hd",
    "caption": "true",
    "licensedContent": true
   }
  }
 ]
}

我想像这样获得视频时长？

$.getJSON( "https://www.googleapis.com/youtube/v3/videos?id=XXXX&key=XXXXX&part=contentDetails", function( json ) {
  document.write( "JSON Data: " + json["items"]["contentDetails"]["duration"] );
 });

但是没用！我不明白怎么了。请在我发疯之前帮助我。

Answer 1

试试这个：

var json = {
    "kind": "youtube#videoListResponse",
    "etag": "\"tbWC5XrSXxe1WOAx6MK9z4hHSU8/1jshwBhrF6O49W3oUmNF7rmkgAQ\"",
    "pageInfo": {
        "totalResults": 1,
        "resultsPerPage": 1
    },
    "items": [{
        "kind": "youtube#video",
        "etag": "\"tbWC5XrSXxe1WOAx6MK9z4hHSU8/Zji9LPuiDCpb4GjgPpzdGgf85ws\"",
        "id": "3wFq1-pK05o",
        "contentDetails": {
            "duration": "PT1M1S",
            "dimension": "2d",
            "definition": "hd",
            "caption": "true",
            "licensedContent": true
        }
    }]
}
console.log(json.items[0].contentDetails.duration);

Youtube 视频时长 API v3

Youtube Video Duration API v3

javascript

youtube

api

jquery

json