# 大屏开发文档
demo下载地址  http://47.100.54.81:3000/LiuXue/Youchain_DaPinDemo.git
[Examples - Apache ECharts](https://echarts.apache.org/examples/zh/index.html)
关键代码地址:/src/router/index.js    /src/router/router.js
router.js
你需要像login 页面一样给新页面添加访问路径,并配置标题(浏览器顶部显示)以及vue的路径
```
import Vue from 'vue'
import Router from 'vue-router'
import Layout from '../layout/index'
Vue.use(Router)
export const constantRouterMap = [
  { path: '/login',
    meta: { title: '登录', noCache: true },
    component: (resolve) => require(['@/views/login'], resolve),
    hidden: true
  },
  { path: '/home',
    meta: { title: '登录', noCache: true },
    component: (resolve) => require(['@/views/home'], resolve),
    hidden: true
  },
  { path: '/test',
    meta: { title: '测试', noCache: true },
    component: (resolve) => require(['@/views/app-dashboard/index'], resolve),
    hidden: true
  },
  { path: '/test2',
    meta: { title: '测试2', noCache: true },
    component: (resolve) => require(['@/views/zhongwei-daping/index'], resolve),
    hidden: true
  },
  {
    path: '/404',
    component: (resolve) => require(['@/views/features/404'], resolve),
    hidden: true
  },
  {
    path: '/401',
    component: (resolve) => require(['@/views/features/401'], resolve),
    hidden: true
  },
  {
    path: '/redirect',
    component: Layout,
    hidden: true,
    children: [
      {
        path: '/redirect/:path*',
        component: (resolve) => require(['@/views/features/redirect'], resolve)
      }
    ]
  },
  {
    path: '/',
    component: Layout,
    redirect: '/dashboard',
    children: [
      {
        path: 'dashboard',
        component: (resolve) => require(['@/views/home'], resolve),
        name: 'Dashboard',
        meta: { title: '首页', icon: 'index', affix: true, noCache: true }
      }
    ]
  },
  {
    path: '/user',
    component: Layout,
    hidden: true,
    redirect: 'noredirect',
    children: [
      {
        path: 'center',
        component: (resolve) => require(['@/views/system/user/center'], resolve),
        name: '个人中心',
        meta: { title: '个人中心' }
      }
    ]
  }
]
export default new Router({
  // mode: 'hash',
  mode: 'history',
  scrollBehavior: () => ({ y: 0 }),
  routes: constantRouterMap
})
```
index.js
whiteList   为白名单列表,你需要把 访问路径添加到白名单
    import router from './routers'
    import store from '@/store'
    import Config from '@/settings'
    import NProgress from 'nprogress' // progress bar
    import 'nprogress/nprogress.css'// progress bar style
    import { buildMenus } from '@/api/system/menu'
    import { filterAsyncRouter } from '@/store/modules/permission'
    
    NProgress.configure({ showSpinner: false })// NProgress Configuration
    
    const whiteList = ['/login', '/401', '/404', '/home', '/test', '/test2']// no redirect whitelist
    
    router.beforeEach((to, from, next) => {
      if (to.meta.title) {
        document.title = to.meta.title + ' - ' + Config.title
      }
      if (whiteList.indexOf(to.path) !== -1) { // 在免登录白名单,直接进入
        next()
      } else {
        next(`/login`) // 否则全部重定向到登录页
        NProgress.done()
      }
    })
    
    export const loadMenus = (next, to) => {
      buildMenus().then(res => {
        const sdata = JSON.parse(JSON.stringify(res))
        const rdata = JSON.parse(JSON.stringify(res))
        const sidebarRoutes = filterAsyncRouter(sdata)
        const rewriteRoutes = filterAsyncRouter(rdata, false, true)
        rewriteRoutes.push({ path: '*', redirect: '/404', hidden: true })
    
        store.dispatch('GenerateRoutes', rewriteRoutes).then(() => { // 存储路由
          router.addRoutes(rewriteRoutes) // 动态添加可访问路由表
          next({ ...to, replace: true })
        })
        store.dispatch('SetSidebarRouters', sidebarRoutes)
      })
    }
    
    router.afterEach(() => {
      NProgress.done() // finish progress bar
    })
/src/view/zhongwei-daping/index.vue
使用el-row 对页面进行布局
.mian-container / background-image  为背景图片
.divmao    单块背景模糊
        backdrop-filter 模糊像素,越大越模糊
        background      背景色,最后两位是透明度
        box-shadow      边缘阴影

```
  
```
    页面添加雷达图
    import RadarChart from './RadarChart.vue'
    在components 中引用
```
 export default {
  name: 'DataView',
  components: {
    BarChart,
    RightChart1,
    // eslint-disable-next-line vue/no-unused-components
    RadarChart
  },
  data() {
    return {}
  }
}
```
    直接在 EL 中添加
```
    
```
/src/zhongwei-daping/RadarChatr    雷达图
静态数据
```
  
```
             动态数据的话,修改 initChart()部分为
```
methods: {  
  initChart() {  
    this.chart = echarts.init(this.$el, 'macarons')  
    crudSysAppUpdate.get().then(res => {  
      this.chart.setOption(res)  
    })  
  }  
}
```