一、背景

vue3下载第三方插件videojs，达到播放器的效果，并且点击事件能够动态更改播放器的src。实现思路：

  1. 场景一：只有一个播放器，当点击事件，直接赋值，动态更改封装好的组件的src参数，能够实现切换播放器的效果。
  2. 场景二：不止有一个窗口，而是多窗口，要选中多个窗口中的一个窗口，然后点击，达到动态切换选中播放器的src。

二、实现总结

1.vue框架更改对应数据data，对应的视图view变化。

2.在封装的组件监听传参src的变化，如果点击的 src和之前的不同，进行切换资源，播放器重新加载播放；

3.播放器的资源source的参数有src+type，注意type可以不设置。

推荐用法：不设置type，如果要设置一定要更传过来的视频流的数据格式保持一致，否则会爆红。

三、效果展示

四、完整代码 

(一)、封装组件 

 组件封装，videojs封装成一个组件：

完整代码：

<script setup lang="ts">
import { computed, CSSProperties, onMounted, ref, watch } from 'vue'
import videojs from 'video.js'
import type { VideoJsPlayerOptions } from 'video.js'
import 'video.js/dist/video-js.min.css'
type MyVideoProps = {
  /** 视频地址 */
  src: string
  width?: string
  height?: string
}
const props = withDefaults(defineProps<MyVideoProps>(), {})
// video标签
const videoRef = ref<HTMLElement | null>(null)
// video实例对象
let videoPlayer: videojs.Player | null = null
const videoWrapStyles = computed<CSSProperties>(() => {
  return {
    width: props.width || '100%',
    height: props.height || '100%'
  }
})
// 初始化videojs
const initVideo = () => {
  // https://gitcode.gitcode.host/docs-cn/video.js-docs-cn/docs/guides/options.html
  const options: VideoJsPlayerOptions = {
    language: 'zh-CN', // 设置语言
    controls: true, // 是否显示控制条
    preload: 'auto', // 预加载
    autoplay: true, // 是否自动播放
    fluid: false, // 自适应宽高
    src: props.src, // 要嵌入的视频源的源 URL
    objectFit: 'cover', // 同css object-fit，作用于video标签
    notSupportedMessage: 'Ajiang此视频暂无法播放，请稍后再试' //允许覆盖Video.js无法播放媒体源时显示的默认信息。
  }
  if (videoRef.value) {
    // 创建 video 实例
    videoPlayer = videojs(videoRef.value, options, onPlayerReady)
  }
}
// video初始化完成的回调函数
const onPlayerReady = () => { }
onMounted(() => {
  initVideo()
})
watch(() => props.src, (now) => {
  if (now) {
    videoPlayer.pause()
    // videoPlayer.dispose()
    videoPlayer.reset()
    setTimeout(() => {
      videoPlayer.src([
        {
          src: props.src,
          // type: "application/x-mpegURL"  //type可以不写，一旦写了一定要符合否则报错
        }
      ])
      videoPlayer.load()
      videoPlayer.play()
    }, 10)
  }
})
</script>
<template>
  <div :style="videoWrapStyles">
    <video id="my-player" ref="videoRef" class="video-js w-full h-full">
      <source :src="src" />
    </video>
  </div>
</template>
<style lang="less" scoped>
.w-full {
  width: 100%;
}

.h-full {
  height: 100%;
}
</style>

(二)、局部引入 

 页面引入，引入封装的组件：

完整代码：

<template>
    <div class="home_box">
        <div class="leftBox">
            <div class="top_nav">
                <div v-for="(item, index) in topnav" :key="index" :class="item.class_name" @click="toOtherModel(item.path)">
                    {{ item.name }}
                </div>
            </div>
            <div class="videoBox">
                <div :class="data.cruentIndex == 0 ? 'playerBox1' :
                    data.cruentIndex == 1 ? 'playerBox2' :
                        data.cruentIndex == 2 ? 'playerBox3' : ''
                    ">
                    <template v-if="data.cruentIndex == 0 && data.videoUrlData">
                        <div class="myVedioBox">
                            <Vediojs :src="data.videoUrlData[0].url" width="100%" height="78vh" />
                        </div>
                    </template>
                    <template v-if="data.cruentIndex == 1">
                        <div class="myVedioBox" v-for="(item, index) in fourBoxData[1].controlTypy" :id="'player_' + index"
                            :key="index" @click="changePlayer(index)">
                            <Vediojs :src="data.videoUrlData[index]?.url" />
                        </div>
                    </template>
                    <template v-if="data.cruentIndex == 2">
                        <div class="myVedioBox" v-for="(item, index) in fourBoxData[2].controlTypy" :id="'player_' + index"
                            :key="index" @click="changePlayer(index)">
                            <Vediojs :src="data.videoUrlData[index]?.url" />
                        </div>
                    </template>
                </div>
                <div :class="data.cruentIndex == 3 ? 'playerBox4' : ''" v-show="data.isCloseed == true">
                    <template v-if="data.cruentIndex == 3">
                        <div class="myVedioBox" v-for="(item, index) in fourBoxData[3].controlTypy" :key="index">
                            <Vediojs :src="data.videoUrlData[index].url" width="100%" height="88vh" />
                            <div class="closeBox" @click="handleCloseBtn">关闭</div>
                        </div>
                    </template>
                </div>
            </div>
        </div>
        <div class="rightBox">
            <div class="rightTitleBox">
                <img :src="getAssetsFile('pmsHome/title_icon.png')" alt="一张图" />
                <span>选择窗口</span>
            </div>
            <div class="fourBox">
                <div class="fourInnerBox" v-for="(item, index) in fourBoxData" @click="handleImageIcon(index)">
                    <img :src="getAssetsFile(data.cruentIndex == index ? item.activeImgUrl : item.imgUrl)" alt="一张图">
                </div>
            </div>
            <div class="rightTitleBox">
                <img :src="getAssetsFile('pmsHome/title_icon.png')" alt="一张图" />
                <span>监控列表</span>
            </div>
            <div class="rightTreeBox">
                <div class="treeInnerBox">
                    <el-tree ref="treeRef" node-key="myTreeKey" :data="treeData" :props="treeDefaultProps"
                        @node-click="handleNodeClick" :current-node-key='4' default-expand-all :highlight-current="true" />
                </div>
            </div>
        </div>
    </div>
</template>
<script setup>
import { nextTick, onMounted, reactive, ref, watch } from "vue";
import { useRouter } from "vue-router";
import { getAssetsFile } from '@/utils'
import Vediojs from "./common/Vediojs.vue";
import 'video.js/dist/video-js.min.css'
const router = useRouter();
const treeRef = ref()
const treeDefaultProps = {
    children: 'children',
    label: 'label',
    id: 'myTreeKey',
    url: 'url'
}
onMounted(() => {

})
const topnav = reactive([
    {
        name: "360゜全景影像",
        class_name: "panoramicImage_title",
        path: "panoramicImage"
    },
    {
        name: "综合感知",
        class_name: "comprehensivePerception_title",
        path: "comprehensivePerception"
    },
]);
const data = reactive({
    cruentIndex: 0,
    videoUrlData: [
        {
            id: '1',
            label: '常规监控',
            url: 'https://media.w3.org/2010/05/sintel/trailer.mp4',
        },
        {
            id: '2',
            label: '常规监控2',
            url: 'http://vjs.zencdn.net/v/oceans.mp4',
        },
        {
            id: '3',
            label: '常规监控',
            url: 'https://media.w3.org/2010/05/sintel/trailer.mp4',
        },
        {
            id: '4',
            label: '常规监控',
            url: 'https://media.w3.org/2010/05/sintel/trailer.mp4',
        },
        {
            id: '5',
            label: '常规监控',
            url: 'https://media.w3.org/2010/05/sintel/trailer.mp4',
        },
        {
            id: '6',
            label: '常规监控2',
            url: 'http://vjs.zencdn.net/v/oceans.mp4',
        },
        {
            id: '7',
            label: '常规监控',
            url: 'https://media.w3.org/2010/05/sintel/trailer.mp4',
        },
        {
            id: '8',
            label: '常规监控',
            url: 'https://media.w3.org/2010/05/sintel/trailer.mp4',
        },
        {
            id: '9',
            label: '常规监控',
            url: 'https://media.w3.org/2010/05/sintel/trailer.mp4',
        },
    ],
    isCloseed: false,
})
const fourBoxData = reactive([
    {
        imgUrl: 'intelligentNavigation/rightIcon/icon1.png',
        activeImgUrl: 'intelligentNavigation/rightIcon/icon1_isChecked.png',
        controlTypy: 1,
    },
    {
        imgUrl: 'intelligentNavigation/rightIcon/icon2.png',
        activeImgUrl: 'intelligentNavigation/rightIcon/icon2_isChecked.png',
        controlTypy: 4,
    },
    {
        imgUrl: 'intelligentNavigation/rightIcon/icon3.png',
        activeImgUrl: 'intelligentNavigation/rightIcon/icon3_isChecked.png',
        controlTypy: 9,
    },
    {
        imgUrl: 'intelligentNavigation/rightIcon/icon4.png',
        activeImgUrl: 'intelligentNavigation/rightIcon/icon3_isChecked.png',
        controlTypy: 1,
    },
])
const treeData = [
    {
        id: '1',
        label: '常规监控',
        url: '#',
        children: [
            {
                id: '2',
                label: '监控器1',
                url: 'https://media.w3.org/2010/05/sintel/trailer.mp4',
            },
            {
                id: '3',
                label: '监控器2',
                url: 'http://vjs.zencdn.net/v/oceans.mp4',
            },
            {
                id: '4',
                label: '监控器3',
                url: 'https://media.w3.org/2010/05/sintel/trailer.mp4',
            },
            {
                id: '5',
                label: '监控器4',
                url: 'http://vjs.zencdn.net/v/oceans.mp4',
            },
            {
                id: '6',
                label: '监控器集群',
                children: [
                    {
                        id: '8',
                        label: '监控器5',
                        url: 'https://media.w3.org/2010/05/sintel/trailer.mp4',
                    },
                    {
                        id: '9',
                        label: '监控器6',
                        url: 'http://vjs.zencdn.net/v/oceans.mp4',
                    },
                    {
                        id: '10',
                        label: '监控器7',
                        url: 'https://media.w3.org/2010/05/sintel/trailer.mp4',
                    },
                ],
            },
            {
                id: '7',
                label: '监控器集群二',
                url: '#',
                children: [
                    {
                        id: '11',
                        label: '监控器1',
                        url: 'http://vjs.zencdn.net/v/oceans.mp4',
                    },
                    {
                        id: '12',
                        label: '监控器2',
                        url: 'https://media.w3.org/2010/05/sintel/trailer.mp4',
                    },
                    {
                        id: '13',
                        label: '监控器3',
                        url: 'http://vjs.zencdn.net/v/oceans.mp4',
                    },
                ],
            },
        ],
    },
]
const changePlayer = (id) => {
    console.log('ddd>>>', id, typeof id);
    //2.如何获取到多个播放器中的一个？
    data.currentPlayerId = id
}

const toOtherModel = (path) => {
    router.push({ name: path });
}

const handleNodeClick = (treeNode, node) => {
    if (node.level !== 1) {
        defaultHighlight(treeNode.myTreeKey)
        if (data.cruentIndex !== 0) {
            data.videoUrlData[data.currentPlayerId].url = treeNode.url
        } else {
            data.videoUrlData[0].url = treeNode.url
        }
    } else {
        console.log('高亮在根元素>>>');
    }
}
const handleImageIcon = (value) => {
    data.cruentIndex = value
    if (value == 3) {
        data.isCloseed = !data.isCloseed
    }
}
const defaultHighlight = (param) => {
    nextTick(() => {
        treeRef.value.setCurrentKey(param)  //树状图选中效果
    })
}
const handleCloseBtn = () => {
    data.isCloseed = !data.isCloseed
    data.cruentIndex = 0
}
</script>
<style scoped lang='less'>
.home_box {
    width: 100%;
    height: 88vh;
    display: flex;
    position: relative;

    .leftBox {
        width: 80%;
        height: 100%;
        margin-right: 1%;
        display: flex;
        flex-direction: column;

        .top_nav {
            width: 100%;
            height: 6%;
            margin-bottom: 12px;
            color: rgba(106, 151, 218, 1);
            font-weight: bold;
            font-size: calc(100vw * 22 / 1920);
            display: flex;

            >div {
                height: 46px;
                margin-right: 30px;
                text-align: center;
                line-height: 43px;
            }

            .panoramicImage_title {
                width: 235px;
                background: url("@/assets/images/intelligentNavigation/panoramicImage_title.png");
                background-size: 100% 100%;
                background-position: center;
            }

            .comprehensivePerception_title {
                width: 185px;
                background: url("@/assets/images/intelligentNavigation/comprehensivePerception_title.png");
                background-size: 100% 100%;
                background-position: center;
            }
        }

        .videoBox {
            width: 100%;
            flex: 1;
            background-color: #EBF1F6;
            border: 1px solid #95DEF7;
            border-radius: 8px;
            display: flex;
            justify-content: center;
            align-items: center;

            .video-player-wrapper {
                width: 100%;
                height: 100%;
                background-color: pink;
                display: flex;
                flex-wrap: wrap;
                justify-content: space-between;

                .video-player-item {
                    width: 500px;
                    height: 300px;
                    background-color: skyblue;
                }
            }


            .playerBox1 {
                width: 98%;
                height: 96%;

                .myvideoBox {
                    width: 100%;
                    height: 100%;
                    display: flex;
                    justify-content: center;
                    align-items: center;

                    img {
                        width: 1400px;
                        height: 700px;
                        object-fit: cover;
                    }
                }
            }

            .playerBox2 {
                width: 98%;
                height: 96%;
                display: flex;
                flex-wrap: wrap;

                .myVedioBox {
                    width: 49%;
                    margin: 0px auto 8px auto;

                    img {
                        width: 100%;
                        height: 100%;
                        object-fit: cover;
                    }
                }
            }

            .playerBox3 {
                width: 98%;
                height: 96%;
                display: flex;
                flex-wrap: wrap;

                .myVedioBox {
                    width: 33%;
                    margin: 0px auto 7px auto;

                    img {
                        width: 100%;
                        height: 100%;
                        object-fit: cover;
                    }
                }
            }

            .playerBox4 {
                width: 100%;
                height: 100%;
                position: absolute;
                top: 0px;
                left: 0px;
                z-index: 2;

                .myVedioBox {
                    .closeBox {
                        width: 40px;
                        height: 40px;
                        line-height: 40px;
                        border: 1px solid #fff;
                        border-radius: 50%;
                        color: #4279CA;
                        font-weight: 600;
                        background-color: #fff;
                        position: absolute;
                        top: 10px;
                        right: 20px;
                        z-index: 3;

                        &:hover {
                            border: 1px solid #4279CA;
                            color: #fff;
                            background-color: #4279CA;
                            cursor: pointer;
                        }
                    }
                }
            }
        }
    }

    .rightBox {
        flex: 1;
        display: flex;
        flex-direction: column;

        .rightTitleBox {
            width: 100%;
            height: 46px;
            background: url('@/assets/images/intelligentNavigation/rightTitle_bg_long.png');
            background-size: 100% 100%;
            margin-bottom: 12px;
            font-size: calc(100vw * 24 / 1920);
            color: #4279CA;
            font-weight: bold;
            display: flex;
            justify-content: flex-start;
            align-items: center;

            img {
                width: 27px;
                height: 27px;
                margin: 8px 11px 8px 18px;
            }
        }

        .fourBox {
            width: 100%;
            height: 64px;
            background-color: #EBF0F5;
            border: 3px solid #fff;
            border-radius: 4px;
            margin-bottom: 16px;
            display: flex;
            justify-content: space-around;
            align-items: center;
            box-sizing: border-box;

            .fourInnerBox {
                width: 40px;
                height: 40px;
                display: flex;
                justify-content: center;
                align-items: center;

                img {
                    width: 40px;
                    height: 40px;
                    object-fit: cover;
                }
            }
        }

        .rightTreeBox {
            width: 100%;
            flex: 1;
            padding-left: 16px;
            background-color: #EBF1F6;
            border: 3px solid #fff;
            border-radius: 4px;
            box-sizing: border-box;

            .treeInnerBox {
                width: 100%;
                height: 100%;

                :deep(.el-tree) {
                    background-color: #EBF0F5;
                }
            }
        }

    }
}
</style>
<style lang='less'>
@import "@/assets/css/reset.less";
</style>

五、核心代码

 封装组件的监听watch:

watch(() => props.src, (now) => {
  if (now) {
    videoPlayer.pause()
    // videoPlayer.dispose()
    videoPlayer.reset()
    setTimeout(() => {
      videoPlayer.src([
        {
          src: props.src,
          // type: "application/x-mpegURL"  //type可以不写，一旦写了一定要符合否则报错
        }
      ])
      videoPlayer.load()
      videoPlayer.play()
    }, 10)
  }
})

局部引入的点击事件：

const changePlayer = (id) => {
    console.log('ddd>>>', id, typeof id);
    //2.如何获取到多个播放器中的一个？
    data.currentPlayerId = id
}


const handleNodeClick = (treeNode, node) => {
    if (node.level !== 1) {
        if (data.cruentIndex !== 0) {
            data.videoUrlData[data.currentPlayerId].url = treeNode.url   //变data，变视频
        } else {
            data.videoUrlData[0].url = treeNode.url
        }
    } else {
        console.log('高亮在根元素>>>');
    }
}

 

 

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