视频才用流媒体，有后台实时返回数据， 要支持flash播放， 所以需安装对应的flash插件。当视频播放时，每间隔3秒向后台发送请求供检测心跳，表明在线收看状态,需要后台持续发送视频数据。
1. yarn add video.js videojs-flash
2. 创建videp.js声明文件
3. 创建video_player.vue组件，供外部调用。源码如下
<script lang="ts">
import { Component, Emit, Prop, Vue } from 'vue-property-decorator';import 'video.js/dist/video-js.css';
import _videojs from 'video.js';
const videojs = (window as any).videojs || _videojs;
import 'videojs-flash';
@Component({
name: 'video-player',
})
export default class VideoPlayer extends Vue {
/* ------------------------ INPUT & OUTPUT ------------------------ */
@Prop({ type: Object, default: () => {}}) private options!: object;
/* ------------------------ VUEX (vuex getter & vuex action) ------------------------ */
/* ------------------------ LIFECYCLE HOOKS (created & mounted & ...) ------------------------ */
private mounted() {
this.player = videojs(this.$refs.videoPlayer, this.options, function onPlayerReady() {
// console.log('onPlayerReady');
});
}
private beforeDestroy() {
if (this.player) {
this.player.dispose();
}
}
/* ------------------------ COMPONENT STATE (data & computed & model) ------------------------ */
private player: any;
/* ------------------------ WATCH ------------------------ */
/* ------------------------ METHODS ------------------------ */
}
</script>
<template>
<div class="module_video_player">
<video ref="videoPlayer" class="video-js" autoplay></video>
</div>
</template>
<style lang="stylus" scoped>
@import '~@/assets/styles/var.styl';
.module_video_player
position relative
width 780px
</style>
4. 在需要使用的模块（如show_monitor.vue）调用。组件创建后，向后台发送轻轻获取rtmp视频播放地址，并更新videoOptions中的src。触发video_player的创建、挂载等。
import VideoPlayer from '@/components/video_player.vue';components: {
VideoPlayer,
}
private videoOptions = {
techOrder: ['flash', 'html5'],
sourceOrder: true,
flash: {
hls: { withCredentials: false },
},
html5: { hls: { withCredentials: false } },
sources: [{
type: 'rtmp/flv',
src: '', // 'rtmp://live.hkstv.hk.lxdns.com/live/hks2', // 香港卫视，可使用此地址测试
}],
autoplay: true,
controls: true,
width: '778',
height: '638',
