APP局部

<template>        <view class="box">            <web-view :src="getRouter" ref="videoWebView" id="videoWebView"            @message="handleMessage"></web-view>        </view></template><script>    import {mapGetters,mapMutations} from 'vuex'    export default {        data() {            return {                 wv: null            };        },        computed:{            ...mapGetters(['user','token','openid']),            getRouter:function(){                let url =''                url = `http://192.168.3.131:8001/`                return url            }        },        methods:{            ...mapMutations(['SET_INDEX']),            handleMessage:function(e){//app接管到 h5内容传来的信息                let data=e.detail.data[0]            },            h5Message:function(e){// H5接管到 H5内容传来的信息（uni中 h5中应用webview 嵌套h5时）                let data=e.data.data                if(data.name && data.name==="postMessage"){                    data=data.arg                }else{                    return                 }                },            sendMessageH5:function(){                let that=this                let params=that.encodeParams({token:that.token,openid:that.openid})                that.wv.evalJS(`savaParams("${params}")`)                //此处 双引号为重点 ，被坑一小时！！！            }        },        onShow:function(){            let that=this            if(that.wv){//页面切换时 从新发送音讯                that.sendMessageH5()            }        },        onReady:function(){            let that = this;            // #ifdef H5            //H5接管音讯办法            window.addEventListener("message", this.h5Message, false)            // #endif              // #ifdef APP-PLUS            // App初始化拿到webView 进行发送音讯            var currentWebview = that.$scope.$getAppWebview()             that.$nextTick(()=>{                that.wv = currentWebview.children()[0]                that.sendMessageH5()            })            // #endif              },        onUnload:function(){            // #ifdef H5            window.removeEventListener("message", this.h5Message, false)            // #endif        }    }</script>

H5局部(uni 打包的H5)

main.js中

import Vue from 'vue'import webUni from '@/static/js/webview.js'//此处用的是uni 提供的 https://js.cdn.aliyun.dcloud.net.cn/dev/uni-app/uni.webview.1.5.2.js//有重大bug 须要批改js Vue.prototype.$webUni=webUni

H5局部 （webview.js中）


格式化后大概182行，
原代码 ：var E = "undefined" != typeof uni ? uni: {};
批改为 ：var E = "undefined" != typeof webUni ? webUni: {};
否则默认导出会找不到uni ,被框架笼罩!!!

对应页面中：

methods:{    sendMessage:function(){        this.$webUni.postMessage({            data:{                type:'swichTab',                index:0,                id:0,                path:'/pages/tabbar/index'            }        })    }}

H5接管 app传递的音讯

App.js中

methods: {            ...mapMutations(['SET_TOKEN','SET_OPENID']),            savaParams:function(params){            //解决传递的信息                let query=this.decodeParams(params)                this.SET_TOKEN((query.token||''))                this.SET_OPENID((query.openid||''))            }        },onLaunch: function(options) {            let that=this            window.savaParams=that.savaParams            //window挂载的办法与 app evalJS()中办法名统一        },