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', };<video-player :options="videoOptions" v-if="videoOptions.sources[0].src !== ''"></video-player>5. 心跳检测
在show_monitor.vue创建时，新建定时器，每隔3秒向后台发送一个包含当前监控设备id的请求，告知后台此设备监控被调用播放。show_monitor.vue销毁时，清空定时器，后台将停止传输视频数据。
private intervalFunc: any;private created() { // **** this.intervalFunc = setInterval(() => { EquipmentService.monitor_continue_test(this.eqmtid); }, 3000);}private destroyed() { clearInterval(this.intervalFunc);}注： 可以再电脑安装VLC media player 下载， 播放获取到的rtmp路径,已检测数据获取是否成功