vue3简单的前端权限路由实现（通过前端鉴权+侧边栏过滤）

首先是侧边栏根据不同的权限过滤，然后侧边栏能按照不同权限显示了。但是用户在url输入地址仍然能访问，所以需要鉴权

一.侧边栏过滤思路

1.通过路由的meta下的auth存储权限数组

const routes = [
  {
    path: '/',
    redirect: isClient ? '/clientApp' : '/screen',
    meta: {
      title: '',
      auth: ['COLLECT_ADMIN', 'SECOND_CHECK', 'COLLECT', 'FIRST_CHECK', 'ADMIN', 'SURVEY_ADMIN'],
      icon: '',
      env: 'public',
    },
  },
  {
    path: '/Login',
    name: 'Login',
    component: () => import('../views/Login.vue'),
    meta: {
      title: '登录页',
      auth: ['COLLECT_ADMIN', 'SECOND_CHECK', 'COLLECT', 'FIRST_CHECK', 'ADMIN', 'SURVEY_ADMIN'],
      icon: '',
      env: 'public',
    },
  },
  {
    path: '/screen',
    name: 'Screen',
    component: () => import('../views/Screen'),
    meta: {
      title: '大屏',
      auth: ['COLLECT_ADMIN', 'SECOND_CHECK', 'COLLECT', 'FIRST_CHECK', 'ADMIN', 'SURVEY_ADMIN'],
      icon: '',
      env: 'web',
    },
  },
  {
    path: '/401',
    name: '401',
    component: () => import('../views/ErrorPage/401.vue'),
    meta: {
      title: '',
      auth: ['COLLECT_ADMIN', 'SECOND_CHECK', 'COLLECT', 'FIRST_CHECK', 'ADMIN', 'SURVEY_ADMIN'],
      icon: '',
      env: 'public',
    },
  },
  clientAppRouter,
  adminRouter,
]

2.侧边栏过滤渲染

const createRoutes = async (routes) => {
  const { data } = await http.user.getUserInfo()
  //获取用户权限数组
  const sysRoleIdArr = data.sysRoleIdArr
  //routes是路由列表，根据item.meta.auth和sysRoleIdArr求交集进行权限过滤，得到对应用户权限的数组
  const res = routes
    .map((item) => {
      const isPass = _.intersection(item.meta.auth, sysRoleIdArr)
      if (isPass.length) {
        return item
      }
    })
    .filter((item) => item)
  return await res
}
const filterRouteList = ref([])
//过滤后赋值渲染
createRoutes(props.routeList).then((res) => {
  filterRouteList.value = res
})

 
        v-for="item of filterRouteList"
        v-show="item.meta.icon"
        :key="item.name"
        :index="item.name"
        @click="changeRouter(item)"
      >
        <SvgIcon :name="item.meta.icon" style="margin-right: 14px; width: 12px; height: 12px" />
        <template #title>{{ item.meta.title }}template>
      

二.路由鉴权

router.beforeEach(async (to, from, next) => {
  const isLogin = localStorage.getItem('AUTH_ACCESS_TOKEN')
  if (to.path == '/Login') {
    next()
  } else {
    //先判断是否登录
    if (isLogin) {
      const { data } = await http.user.getUserInfo()
      const sysRoleIdArr = data.sysRoleIdArr
      //to表示要跳到的页面进行鉴权
      const isPass = _.intersection(to.meta.auth, sysRoleIdArr)
      //如果权限匹对成功则显示，否则显示404页面
      isPass.length ? next() : next('/401')
    } else if (!isLogin) {
      next('/Login')
    }
  }
})

三.简单效果哈