最近在做一个项目，要求监控视频的播放事件并能够打印LOG日志，经过一番思索，使用javascript实现了此功能，代码如下：
HTML:
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>Multi Source</title>
</head>
<body>
<video src="http://www.w3school.com.cn/i/movie.mp4" controls autoplay></video>
<video src="http://www.w3school.com.cn/i/movie.mp4" controls autoplay></video>
<video src="http://www.w3school.com.cn/i/movie.mp4" controls autoplay></video>
<video src="http://www.w3school.com.cn/i/movie.mp4" controls autoplay></video>
<video src="http://www.w3school.com.cn/i/movie.mp4" controls autoplay></video>
<video src="http://www.w3school.com.cn/i/movie.mp4" controls autoplay></video>
<video src="http://www.w3school.com.cn/i/movie.mp4" controls autoplay></video>
<video src="http://www.w3school.com.cn/i/movie.mp4" controls autoplay></video>
<video src="http://www.w3school.com.cn/i/movie.mp4" controls autoplay></video>
<video src="http://www.w3school.com.cn/i/movie.mp4" controls autoplay></video>
<video src="http://www.w3school.com.cn/i/movie.mp4" controls autoplay></video>
</body>
</html>
JS:
<script type="text/javascript">
window.addEventListener("load",getVideoEvent);
function getVideoEvent(){
var videoes=document.getElementsByTagName("video");
for (var i = 0; i < videoes.length; i++) {
showEventLog("video"+(i+1),videoes[i]);
}
}
function showEventLog(videoNum,Media){
eventTester = function(e){
Media.addEventListener(e,function(){
console.log(videoNum+":"+e);
});
}
eventTester("loadstart"); //客户端开始请求数据
eventTester("progress"); //客户端正在请求数据
eventTester("suspend"); //延迟下载
eventTester("abort"); //客户端主动终止下载（不是因为错误引起），
eventTester("error"); //请求数据时遇到错误
eventTester("stalled"); //网速失速
eventTester("play"); //play()和autoplay开始播放时触发
eventTester("pause"); //pause()触发
eventTester("loadedmetadata"); //成功获取资源长度
eventTester("loadeddata"); //
eventTester("waiting"); //等待数据，并非错误
eventTester("playing"); //开始回放
eventTester("canplay"); //可以播放，但中途可能因为加载而暂停
eventTester("canplaythrough"); //可以播放，歌曲全部加载完毕
eventTester("seeking"); //寻找中
eventTester("seeked"); //寻找完毕
eventTester("timeupdate"); //播放时间改变
eventTester("ended"); //播放结束
eventTester("ratechange"); //播放速率改变
eventTester("durationchange"); //资源长度改变
eventTester("volumechange"); //音量改变
}
</script>
小伙伴们主要看下本文的思路即可，希望对大家能有所帮助