我试图制作一个带有HTML和JavaScript的视频播放器,它将一个接一个地播放一系列视频,直到所有6个播放完毕。视频的URL存储在一个数组中,并映射到名为clips.json的.json文件中。
文件中的数据如下:
[
{
"id":"ashklasd132asddfgdf",
"name": "War on Drugs continues",
"description":"Losses continue in agressive raid on local property",
"content-url": "http://buffalogrove.sat.iit.edu/Kitty.mp4",
"thumb-url":"http://buffalogrove.sat.iit.edu/thumb/dogs_friends-t2.jpg"
},
{
"id":"asdasd132asddf667jf",
"name": "Parlimentary Proceedings",
"description":"World Leaders meet to determine the latest policies on climate change relief",
"content-url": "http://buffalogrove.sat.iit.edu/Clouds%2038%20Timelapse.mp4",
"thumb-url":"http://buffalogrove.sat.iit.edu/thumb/colorful_clouds-t2.jpg"
},
{
"id":"123dfg6132asddfgdz",
"name": "Weather for March 22nd 2015",
"description":"Join Jeremy Brown for today's weather",
"content-url": "http://buffalogrove.sat.iit.edu/Clouds-Time_lapse_22.mp4",
"thumb-url":"http://buffalogrove.sat.iit.edu/thumb/hidden_lagoon-t2.jpg"
},
{
"id":"pzxc87asdkjl44h7h",
"name": "Taking a walk on the wide-side",
"description":"Cook Counties latest conservation efforts led to a new discovery",
"content-url": "http://buffalogrove.sat.iit.edu/Flower_4.mp4",
"thumb-url":"http://buffalogrove.sat.iit.edu/thumb/nature_scenes_3-t2.jpg"
},
{
"id":"mkiaasdsjdh7asd8889",
"name": "Musical Stunner",
"description":"Local musician proves nay-sayers wrong by providing ample range",
"content-url": "http://buffalogrove.sat.iit.edu/Piano_keys.mp4",
"thumb-url":"http://buffalogrove.sat.iit.edu/thumb/turkey_karadeniz_region-t2.jpg"
},
{
"id":"zklsjdpoiqwehbhfyvfy6h",
"name": "H-Diddy Represent",
"description":"The newest Album from H-Diddy",
"content-url": "http://buffalogrove.sat.iit.edu/Pigeon.mp4",
"thumb-url":"http://buffalogrove.sat.iit.edu/thumb/nanxiang_ancient_town_shanghai_china-t2.jpg"
},
]
我在完成网址视频后更改src
属性时遇到问题。视频播放第一个视频后,它会停止播放,并且不会播放到第二个视频。我不知道是不是因为我用我的AJAX get请求或其他东西调用了JSON数据错误,但是如果有人可以帮我解决这个问题,我会非常感激它
我的嵌入式JavaScript代码如下:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="">
<meta name="author" content="">
<title>IIT News</title>
<!-- Bootstrap core CSS -->
<link href="css/bootstrap.min.css" rel="stylesheet">
<style>
.starter-template {
padding: 40px 15px;
text-align: center;
}
</style>
<script type="text/javascript" src="/myJS.js" language="javascript"> </script>
</head>
<body onload="loadFunction()">
<div class="container">
<div class="hook">
<video onended="playNext()" width="640" height="480" id="myVideo" controls autoplay>
<!--<source src="parsedData[0].['content-url'][conUrlCount]" type="video/mp4"></source>-->
<source src="http://buffalogrove.sat.iit.edu/Kitty.mp4" type="video/mp4"></source>
</video>
</div><!-- /.hook -->
</div><!-- /.container-->
</body>
</html>
myJS.js位于
之下 var conUrlCount = 0;
var myVideo = document.getElementById("myVideo");
//parsedData should be declared outside the function scope since we want it to be accessible from outside
var parsedData;
var callback = function (text) {
//parsedData = JSON.stringify(JSON.parse(text));
parsedData = JSON.parse(text);
conUrlCount = 0;
//after load play the first video
playNext();
};
//when page is loaded, data in json file is parsed and returned
function loadFunction() {
//returning json data
ajax.get("clips.json", callback);
};
function playNext() {
if (!parsedData) {
return
}
var myVideo = document.getElementById("myVideo");
myVideo.src = parsedData[conUrlCount]['content-url'];
myVideo.play();
conUrlCount++;
};
答案 0 :(得分:1)
一个问题是json对象是回调方法的局部变量,使其成为全局变量
<video onended="playNext()" width="640" height="480" id="myVideo" controls
自动播放&GT;
然后
var conUrlCount = 0;
var myVideo = document.getElementById("myVideo");
//parsedData should be declared outside the function scope since we want it to be accessible from outside
var parsedData;
var callback = function (text) {
parsedData = JSON.parse(text);
conUrlCount = 0;
//after load play the first video
playNext();
};
//when page is loaded, data in json file is parsed and returned
function loadFunction() {
//returning json data
ajax.get("clips.json", callback);
};
function playNext() {
if (!parsedData) {
return
}
var myVideo = document.getElementById("myVideo");
myVideo.src = parsedData[conUrlCount]['content-url'];
myVideo.play();
conUrlCount++;
}
演示:Fiddle