javascript 海康摄像头显示 海康威视监控显示

1.首先我们在海康威视官网上面下载这个

下载以后打开demo

把这三个文件放进你的public里面去

在vue3项目里的index.html引入

<!--三个必要的js文件引入-->
    <script src="./public/hikvision/jquery-1.12.4.min.js"></script>
    <script src="./public/hikvision/jsencrypt.min.js"></script>
    <!-- 用于RSA加密 -->
    <script src="./public/hikvision/web-control_1.2.5.min.js"></script>
    <!-- 用于前端与插件交互 -->

2.新建一个监控复用组件,只需要通过props传入监控编号 就能使用了

index.vue

<!-- 海康威视组件 -->
<template>
  <div :id="state.id" class="playWnd"></div>
</template>

<script setup lang="ts">
import { reactive, onMounted, onDeactivated, watch, onActivated } from "vue";
import { useRouter } from "vue-router";
const $router = useRouter();
const WebControl = window.WebControl; //index.html引入 直接从window里面拿到sdk
const JSEncrypt = window.JSEncrypt; //index.html引入 直接从window里面拿到sdk
const props = defineProps({
  wsUrl: {
    type: String, //视频监控code
  },
});
console.log(props.wsUrl, "====>wsurl");
const state = reactive({
  id: "playWnd" + Math.random().toString(16).slice(2), //多个监控同时显示需要不同的id
  idWidth: 0 as any,
  idHeight: 0 as any,
  initCount: 0,
  pubKey: "",
  oWebControl: null as any,
});
console.log(state);
//创建播放实例
const initPlugin = () => {
  state.oWebControl = new WebControl({
    szPluginContainer: state.id, // 指定容器id
    iServicePortStart: 15900, // 指定起止端口号，建议使用该值
    iServicePortEnd: 15900,
    szClassId: "23BF3B0A-2C56-4D97-9C03-0CB103AA8F11", // 用于IE10使用ActiveX的clsid
    cbConnectSuccess: function () {
      // 创建WebControl实例成功
      state.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(
          () => {
            console.log("启动成功");
            // 启动插件服务成功
            state.oWebControl.JS_SetWindowControlCallback({
              // 设置消息回调
              cbIntegrationCallBack: cbIntegrationCallBack,
            });

            state.oWebControl
              .JS_CreateWnd(state.id, state.idWidth, state.idHeight)
              .then(() => {
                //JS_CreateWnd创建视频播放窗口，宽高可设定
                init(); // 创建播放实例成功后初始化
              });
          },
          function () {
            console.log("启动失败");
            // 启动插件服务失败
          }
        );
    },
    cbConnectError: function () {
      // 创建WebControl实例失败
      state.oWebControl = null;
      console.log("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
      state.initCount++;
      if (state.initCount < 3) {
        setTimeout(function () {
          initPlugin();
        }, 3000);
      } else {
        console.log("插件启动失败，请检查插件是否安装！");
      }
    },
    cbConnectClose: function (bNormalClose) {
      // 异常断开：bNormalClose = false
      // JS_Disconnect正常断开：bNormalClose = true
      console.log("cbConnectClose");
      state.oWebControl = null;
      console.log("插件未启动，正在尝试启动，请稍候...");
      WebControl.JS_WakeUp("VideoWebPlugin://");
      state.initCount++;
      if (state.initCount < 3) {
        setTimeout(function () {
          initPlugin();
        }, 3000);
      } else {
        console.log("插件启动失败，请检查插件是否安装！");
      }
    },
  });
};
// 设置窗口控制回调
const setCallbacks = () => {
  state.oWebControl.JS_SetWindowControlCallback({
    cbIntegrationCallBack: cbIntegrationCallBack,
  });
};

// 推送消息
const cbIntegrationCallBack = (oData) => {
  console.log(oData, "--oData");
};

//初始化
const init = () => {
  getPubKey(() => {
    // 请自行修改以下变量值	
    var appkey = ""; //综合安防管理平台提供的appkey，必填
    var secret = setEncrypt(""); //综合安防管理平台提供的secret，必填
    var ip = ""; //综合安防管理平台IP地址，必填
    var playMode = 0; //初始播放模式：0-预览，1-回放
    var port = 444; //综合安防管理平台端口，若启用HTTPS协议，默认443
    var snapDir = "D:\\SnapDir"; //抓图存储路径
    var videoDir = "D:\\VideoDir"; //紧急录像或录像剪辑存储路径
    var layout = "1x1"; //playMode指定模式的  布局
    var 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
    var encryptedFields = "secret"; //加密字段，默认加密领域为secret
    var showToolbar = window.location.href.indexOf("monitorMore") == -1 ? 0 : 1; //是否显示工具栏，0-不显示，非0-显示
    var showSmart = 1; //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
    var 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	

    state.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(function (oData: any) {
        console.log(oData, "oData");
        state.oWebControl.JS_Resize(state.idWidth, state.idHeight); // 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
const getPubKey = (callback: any) => {
  state.oWebControl
    .JS_RequestInterface({
      funcName: "getRSAPubKey",
      argument: JSON.stringify({
        keyLength: 1024,
      }),
    })
    .then((oData: { responseMsg: { data: string } }) => {
      console.log(oData);
      if (oData.responseMsg.data) {
        state.pubKey = oData.responseMsg.data;
        callback();
      }
    });
};

//RSA加密
const setEncrypt = (value: string) => {
  var encrypt = new JSEncrypt();
  encrypt.setPublicKey(state.pubKey);
  return encrypt.encrypt(value);
};

// 监听resize事件，使插件窗口尺寸跟随DIV窗口变化
window.addEventListener("resize", () => {
  if (state.oWebControl != null) {
    state.oWebControl.JS_Resize(state.idWidth, state.idHeight);
    // 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.addEventListener("scroll", () => {
  if (state.oWebControl != null) {
    state.oWebControl.JS_Resize(state.idWidth, state.idHeight);
    // setWndCover();
  }
});

//视频预览功能
const previewClick = () => {
  var cameraIndexCode = props.wsUrl as any; //获取输入的监控点编号值，必填
  var streamMode = 0; //主子码流标识：0-主码流，1-子码流
  var transMode = 1; //传输协议：0-UDP，1-TCP
  var gpuMode = 0; //是否启用GPU硬解，0-不启用，1-启用
  var wndId = -1; //播放窗口序号（在2x2以上布局下可指定播放窗口）

  state.oWebControl.JS_RequestInterface({
    funcName: "startPreview",
    argument: JSON.stringify({
      cameraIndexCode: cameraIndexCode, //监控点编号
      streamMode: streamMode, //主子码流标识
      transMode: transMode, //传输协议
      gpuMode: gpuMode, //是否开启GPU硬解
      wndId: wndId, //可指定播放窗口
    }),
  });
  console.log(state.oWebControl.JS_RequestInterface, " ------face");
  console.log("当前的编号", cameraIndexCode);
  console.log("执行完成");
};

onMounted(() => {
  state.idWidth = document.getElementById(state.id)?.offsetWidth;
  state.idHeight = document.getElementById(state.id)?.offsetHeight;
  initPlugin();
  setTimeout(() => {
    previewClick();
  }, 16000); //一般一个监控需要延迟2秒  我这里需求显示8个 所以需要延迟16秒 具体看业务
});
onActivated(() => {
  state.idWidth = document.getElementById(state.id)?.offsetWidth;
  state.idHeight = document.getElementById(state.id)?.offsetHeight;
  initPlugin();
  setTimeout(() => {
    previewClick();
  }, 16000); //一般一个监控需要延迟2秒  我这里需求显示8个 所以需要延迟16秒 具体看业务
});
onDeactivated(() => {
  console.log("销毁了");
  state.oWebControl.JS_HideWnd();
  state.oWebControl.JS_Disconnect().then(
    function () {
      //断开与插件服务连接成功
      console.log("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("断开与插件服务连接失败");
    }
  );
});
watch(
  () => $router.currentRoute.value.path,
  (newValue, oldValue) => {
    console.log("watch", newValue, oldValue);

    setTimeout(() => {
      state.oWebControl.JS_HideWnd();
      state.oWebControl.JS_Disconnect().then(
        function () {
          //断开与插件服务连接成功
          console.log("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("断开与插件服务连接失败");
        }
      );
    });
  },
  { immediate: true, deep: true }
);
</script>
<style lang="sass" scoped>
@import './style.scss'
</style>

style.scss

.playWnd {
  width: 100%;
  height: 100%;
}