web前端在vue中通过海康插件嵌入视频，实现实时预览以及视频回放功能

首先第一步，在海康官网下海康视频插件下载到电脑中海康开放平台

 然后新建一个组件，下面我直接把我封装好的组件代码拿出来，重要的地方我在代码中添加了注释

<template>
  <div ref="iSecureCenter" style="height: 100%; width: 100%"></div>
</template>

<script>
import moment from 'moment'
export default {
  name: 'iSecureCenterContainer',
  props: {
    iSecureCenterConfig: {
      type: Object,
      default: () => {
        return {
          appkey: '',
          secret: '',
          ip: '',
          playMode: 0,
          snapDir: 'D:\\SnapDir',
          videoDir: 'D:\\VideoDir',
          layout: '1x1',//窗口样式
          cameraIndexCodeList: [''],
          previewCode: '',
        }
      },
    },
  },
  data() {
    return {
      id: '',
      oWebControl: null,
      pubKey: '',
      initCount: 0,
      divInfo: {
        width: 0,
        height: 0,
      },
    }
  },
  computed: {
    formatId() {
      return '#' + this.id
    },
  },
  watch: {
    iSecureCenterConfig: function (val, oldVal) {
      console.log(val)
      if (val.playMode !== oldVal.playMode) {
        console.log(val.playMode)
        this.oWebDestroyWnd()
        this.initPlugin()
      }
      if (val.previewCode && val.previewCode !== oldVal.previewCode) {
        this.startPreview(val.previewCode)
      }
    },
  },
  mounted() {
    // this.id = window.crypto.randomUUID()
    this.id = new Date().getTime().toString()
    console.log(this.id)
    this.$refs.iSecureCenter.id = this.id
    //获取id，绑定div，渲染没有插件的情况下，提示下载。
    let doc = document.getElementById(this.id)
    doc.style.color = '#fff'
    doc.style.fontSize = '20px'
    doc.style.fontWeight = '600'
    this.divInfo.width = $(this.formatId).width()
    this.divInfo.height = $(this.formatId).height()

    this.initPlugin()

    window.addEventListener('resize', this.listenerFunc)
    window.addEventListener('scroll', this.listenerFunc)
    // window.addEventListener('')
    // this.iSecureCenterConfig.cameraIndexCodeList?.forEach(item => {
    //     this.startPreview(item)
    // })
  },
  beforeDestroy() {
    window.removeEventListener('resize', this.listenerFunc)
    window.removeEventListener('scroll', this.listenerFunc)
    if (this.oWebControl != null) {
      this.oWebControl.JS_HideWnd() // 先让窗口隐藏，规避可能的插件窗口滞后于浏览器消失问题
      this.oWebControl.JS_Disconnect().then(
        function () {
          // 断开与插件服务连接成功
        },
        function () {
          // 断开与插件服务连接失败
        }
      )
    }
    console.log('beforeDestroy')
  },
  methods: {
    initPlugin() {
      this.oWebControl = new WebControl({
        szPluginContainer: this.id, // 指定容器id
        iServicePortStart: 15900, // 指定起止端口号，建议使用该值
        iServicePortEnd: 15900,
        szClassId: '', // 用于IE10使用ActiveX的clsid
        cbConnectSuccess: () => {
          // 创建WebControl实例成功
          this.oWebControl
            .JS_StartService('window', {
              // WebControl实例创建成功后需要启动服务
              dllPath: './VideoPluginConnect.dll', // 值"./VideoPluginConnect.dll"写死
            })
            .then(
              () => {
                // 启动插件服务成功
                this.oWebControl.JS_SetWindowControlCallback({
                  // 设置消息回调
                  cbIntegrationCallBack: this.cbIntegrationCallBack,
                })
                const { width, height } = this.divInfo
                this.oWebControl.JS_CreateWnd(this.id, width, height).then(() => {
                  //JS_CreateWnd创建视频播放窗口，宽高可设定
                  this.init() // 创建播放实例成功后初始化
                })
              },
              function () {
                // 启动插件服务失败
              }
            )
        },
        cbConnectError: () => {
          // 创建WebControl实例失败
          this.oWebControl = null
          $(this.formatId).html('插件未启动，正在尝试启动，请稍候...')
          WebControl.JS_WakeUp('VideoWebPlugin://') // 程序未启动时执行error函数，采用wakeup来启动程序
          this.initCount++
          if (this.initCount < 3) {
            setTimeout(() => {
              this.initPlugin()
            }, 3000)
          } else {
            $(this.formatId).html(`<div>
                            <div>插件启动失败，请检查插件是否安装！</div>
                            <div>插件下载地址：<a href='下载地址'  target=_blank underline>点击下载</a></div></div>`)
          }
        },
        cbConnectClose: (bNormalClose) => {
          // 异常断开：bNormalClose = false
          // JS_Disconnect正常断开：bNormalClose = true
          console.log('cbConnectClose')
          this.oWebControl = null
          $(this.formatId).html('插件未启动，正在尝试启动，请稍候...')
          WebControl.JS_WakeUp('VideoWebPlugin://')
          this.initCount++
          if (this.initCount < 3) {
            setTimeout(() => {
              this.initPlugin()
            }, 3000)
          } else {
            $(this.formatId).html(`<div>
                            <div>插件启动失败，请检查插件是否安装！</div>
                            <div>插件下载地址：<a href='下载地址'  target=_blank underline>点击下载</a></div></div>`)
          }
        },
      })
    },
    // 设置窗口控制回调
    setCallbacks() {
      this.oWebControl.JS_SetWindowControlCallback({
        cbIntegrationCallBack: function (oData) {
          this.showCBInfo(JSON.stringify(oData.responseMsg))
        },
      })
    },

    // 推送消息
    // cbIntegrationCallBack(oData) {
    //     showCBInfo(JSON.stringify(oData.responseMsg));
    // },
    //初始化
    init() {
      this.getPubKey(() => {
        // 请自行修改以下变量值	
        const appkey = this.iSecureCenterConfig.appkey //综合安防管理平台提供的appkey，必填
        const secret = this.setEncrypt(this.iSecureCenterConfig.secret) //综合安防管理平台提供的secret，必填
        const ip = this.iSecureCenterConfig.ip //综合安防管理平台IP地址，必填
        const playMode = this.iSecureCenterConfig.playMode //初始播放模式：0-预览，1-回放
        const port = 443 //综合安防管理平台端口，若启用HTTPS协议，默认443
        const snapDir = this.iSecureCenterConfig?.snapDir ?? 'D:\\SnapDir' //抓图存储路径
        const videoDir = this.iSecureCenterConfig?.videoDir ?? 'D:\\VideoDir' //紧急录像或录像剪辑存储路径
        const layout = this.iSecureCenterConfig?.layout ?? '1x1' //playMode指定模式的布局
        const enableHTTPS = 1 //是否启用HTTPS协议与综合安防管理平台交互，这里总是填1
        const encryptedFields = 'secret' //加密字段，默认加密领域为secret
        const showToolbar = 1 //是否显示工具栏，0-不显示，非0-显示
        const showSmart = 0 //是否显示智能信息（如配置移动侦测后画面上的线框），0-不显示，非0-显示
        const buttonIDs = '0,16,256,257,258,259,260,512,513,514,515,516,517,768,769' //自定义工具条按钮
        // 请自行修改以上变量值	

        this.oWebControl
          .JS_RequestInterface({
            funcName: 'init',
            argument: JSON.stringify({
              appkey: appkey, //API网关提供的appkey
              secret: secret, //API网关提供的secret
              ip: ip, //API网关IP地址
              playMode: playMode, //播放模式（决定显示预览还是回放界面）
              port: port, //端口
              snapDir: snapDir, //抓图存储路径
              videoDir: videoDir, //紧急录像或录像剪辑存储路径
              layout: layout, //布局
              enableHTTPS: enableHTTPS, //是否启用HTTPS协议
              encryptedFields: encryptedFields, //加密字段
              showToolbar: showToolbar, //是否显示工具栏
              showSmart: showSmart, //是否显示智能信息
              buttonIDs: buttonIDs, //自定义工具条按钮
            }),
          })
          .then((oData) => {
            console.log(oData)
            const { width, height } = this.divInfo
            // this.startPreview()
            this.initPreviewList()
            this.oWebControl.JS_Resize(width, height) // 初始化后resize一次，规避firefox下首次显示窗口后插件窗口未与DIV窗口重合问题
          })
      })
    },
    //获取公钥
    getPubKey(callback) {
      this.oWebControl
        .JS_RequestInterface({
          funcName: 'getRSAPubKey',
          argument: JSON.stringify({
            keyLength: 1024,
          }),
        })
        .then((oData) => {
          console.log(oData)
          if (oData.responseMsg.data) {
            this.pubKey = oData.responseMsg.data
            callback()
          }
        })
    },
    //RSA加密
    setEncrypt(value) {
      var encrypt = new JSEncrypt()
      encrypt.setPublicKey(this.pubKey)
      return encrypt.encrypt(value)
    },
    setWndCover() {
      const { width, height } = this.divInfo
      const iWidth = $(window).width()
      const iHeight = $(window).height()
      const oDivRect = $(this.formatId).get(0).getBoundingClientRect()

      let iCoverLeft = oDivRect.left < 0 ? Math.abs(oDivRect.left) : 0
      let iCoverTop = oDivRect.top < 0 ? Math.abs(oDivRect.top) : 0
      let iCoverRight = oDivRect.right - iWidth > 0 ? Math.round(oDivRect.right - iWidth) : 0
      let iCoverBottom = oDivRect.bottom - iHeight > 0 ? Math.round(oDivRect.bottom - iHeight) : 0

      iCoverLeft = iCoverLeft > width ? width : iCoverLeft
      iCoverTop = iCoverTop > height ? height : iCoverTop
      iCoverRight = iCoverRight > width ? width : iCoverRight
      iCoverBottom = iCoverBottom > height ? height : iCoverBottom

      this.oWebControl.JS_RepairPartWindow(0, 0, width + 1, height) // 多1个像素点防止还原后边界缺失一个像素条
      if (iCoverLeft != 0) {
        this.oWebControl.JS_CuttingPartWindow(0, 0, iCoverLeft, height)
      }
      if (iCoverTop != 0) {
        this.oWebControl.JS_CuttingPartWindow(0, 0, width + 1, iCoverTop) // 多剪掉一个像素条，防止出现剪掉一部分窗口后出现一个像素条
      }
      if (iCoverRight != 0) {
        this.oWebControl.JS_CuttingPartWindow(width - iCoverRight, 0, iCoverRight, height)
      }
      if (iCoverBottom != 0) {
        this.oWebControl.JS_CuttingPartWindow(0, height - iCoverBottom, width, iCoverBottom)
      }
    },
    listensFunc() {
      const { width, height } = this.divInfo

      // 监听resize事件，使插件窗口尺寸跟随DIV窗口变化
      $(window).resize(() => {
        if (this.oWebControl != null) {
          this.oWebControl.JS_Resize(width, height)
          this.setWndCover()
        }
      })

      // 监听滚动条scroll事件，使插件窗口跟随浏览器滚动而移动
      $(window).scroll(() => {
        if (this.oWebControl != null) {
          this.oWebControl.JS_Resize(width, height)
          this.setWndCover()
        }
      })

      // 标签关闭
      $(window).unload(function () {
        if (oWebControl != null) {
          this.oWebControl.JS_HideWnd() // 先让窗口隐藏，规避可能的插件窗口滞后于浏览器消失问题
          this.oWebControl.JS_Disconnect().then(
            function () {
              // 断开与插件服务连接成功
            },
            function () {
              // 断开与插件服务连接失败
            }
          )
        }
      })
    },
    initPreviewList() {
      this.iSecureCenterConfig.cameraIndexCodeList?.forEach((item) => {
        this.oWebControl.JS_RequestInterface({
          funcName: 'startPreview',
          argument: JSON.stringify({
            cameraIndexCode: item, //监控点编号
            streamMode: 0, //主子码流标识
            transMode: 1, //传输协议
            gpuMode: 0, //是否开启GPU硬解
            wndId: -1, //可指定播放窗口
          }),
        })
      })
    },
    startPreview(cameraIndexCode) {
      // this.iSecureCenterConfig.cameraIndexCodeList.forEach(item => {
      //     this.oWebControl.JS_RequestInterface({
      //         funcName: "startPreview",
      //         argument: JSON.stringify({
      //             cameraIndexCode: item,                //监控点编号
      //             streamMode: 0,                         //主子码流标识
      //             transMode: 1,                           //传输协议
      //             gpuMode: 0,                               //是否开启GPU硬解
      //             wndId: -1                                    //可指定播放窗口
      //         })
      //     })
      // })
      this.oWebControl.JS_RequestInterface({
        funcName: 'startPreview',
        argument: JSON.stringify({
          cameraIndexCode: cameraIndexCode, //监控点编号
          streamMode: 0, //主子码流标识
          transMode: 1, //传输协议
          gpuMode: 0, //是否开启GPU硬解
          wndId: -1, //可指定播放窗口
        }),
      })
    },
    listenerFunc() {
      this.divInfo.width = $(this.formatId).width()
      this.divInfo.height = $(this.formatId).height()
      const { width, height } = this.divInfo
      if (this.oWebControl != null) {
        this.oWebControl.JS_Resize(width, height)
        this.setWndCover()
      }
    },
    // 设置插件显示隐藏
    setoWebControlVisible(bol = true) {
      if (bol) {
        this.oWebControl.JS_HideWnd()
      } else {
        this.oWebControl.ShowWnd()
      }
    },
    // 插件停止所有视频预览
    oWebAllVideoStop() {
      this.oWebControl.JS_RequestInterface({
        funcName: 'stopAllPreview',
      })
    },
    oWebDestroyWnd() {
      this.oWebControl.JS_DestroyWnd()
    },
    oWebStartPlayback(
      cameraIndexCode,
      // startTimeStamp = moment().startOf('week').unix(),
      startTimeStamp =moment().add(-7, 'd').unix(),//历史视频开始时间，目前维度7天
      endTimeStamp = moment().unix(),//历史视频截至时间
      playTimeStamp=moment().startOf('day').unix(),//视频回放开始播放时间
      recordLocation = 1,
      transMode = 0,
      wndId = -1
    ) {
      console.log(cameraIndexCode, startTimeStamp, moment().startOf('week'))
      this.oWebControl.JS_RequestInterface({
        funcName: 'startPlayback',
        argument: { cameraIndexCode, startTimeStamp, endTimeStamp, recordLocation, transMode ,playTimeStamp},
      })
    },
  },
}
</script>

以上是封装的组件，下面是调用的方法 

 <iSecureCenterContainer :iSecureCenterConfig="iSecureCenterConfig" ref="iSecureCenterRef" />
//先引入组件

在data中定义的     iSecureCenterConfig: {
        appkey: '',
        secret: '',
        ip: '',
        playMode: 0,
        snapDir: 'D:\\SnapDir',
        videoDir: 'D:\\VideoDir',
        layout: '3x3',
        cameraIndexCodeList: [],
        previewCode: '',
      },

//点击视频的时候触发的方法  判断是历史视频还是实时预览
 handleNodeClick(data) {
      console.log(data)
      if (this.iSecureCenterConfig.playMode === 0) {
        this.iSecureCenterConfig = {
          ...this.iSecureCenterConfig,
          previewCode: data.code,
        }
      } else {
      
        this.$refs.iSecureCenterRef.oWebStartPlayback(data.code)
      }
    },


 //实时，历史视频切换，
    videoChange(data) {
      if (data == 'shishi') {
        this.info = '实时视频'
        this.iSecureCenterConfig = {
          ...this.iSecureCenterConfig,
          playMode: 0,
          layout: "3x3"
        }
      } else {
        this.info = '历史视频'
        this.iSecureCenterConfig = {
          ...this.iSecureCenterConfig,
          playMode: 1,  //1是回放
          layout: "1x1"
        }
      }
    },