动态增加路由的演示

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src/views/demo/playground/add-routes/alternates/1.vue

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+<template>
+  <d2-container type="card">
+    <p>src/views/demo/playground/add-routes/alternates/1.vue</p>
+  </d2-container>
+</template>

src/views/demo/playground/add-routes/alternates/2.vue

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+<template>
+  <d2-container type="card">
+    <p>src/views/demo/playground/add-routes/alternates/2.vue</p>
+  </d2-container>
+</template>

src/views/demo/playground/add-routes/alternates/3.vue

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+<template>
+  <d2-container type="card">
+    <p>src/views/demo/playground/add-routes/alternates/3.vue</p>
+  </d2-container>
+</template>

src/views/demo/playground/add-routes/routes.vue

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+<template>
+  <d2-container>
+    <el-alert
+      title="由于演示功能特殊，请注意在需要时刷新您的浏览器（以重置路由设置）查看效果"
+      type="warning"
+      show-icon/>
+    <d2-highlight :code="dataView"/>
+    <el-form label-position="top">
+      <el-form-item label="创建路由（你可以假设上面是接口数据）">
+        <el-button-group>
+          <el-button
+            v-for="item in setting"
+            :key="item.component"
+            @click="onClick(item)">
+            {{item.title}}
+          </el-button>
+        </el-button-group>
+      </el-form-item>
+    </el-form>
+  </d2-container>
+</template>
+
+<script>
+import { cloneDeep } from 'lodash'
+import { mapState, mapMutations } from 'vuex'
+import router from '@/router'
+import { frameInRoutes } from '@/router/routes'
+import layoutHeaderAside from '@/layout/header-aside'
+export default {
+  data () {
+    return {
+      title: '',
+      setting: [
+        { title: '追加页面 1', name: 'add-routes-1', path: 'add-routes/1', component: '1' },
+        { title: '追加页面 2', name: 'add-routes-2', path: 'add-routes/2', component: '2' },
+        { title: '追加页面 3', name: 'add-routes-3', path: 'add-routes/3', component: '3' }
+      ]
+    }
+  },
+  computed: {
+    ...mapState('d2admin/menu', [
+      'header'
+    ]),
+    dataView () {
+      return JSON.stringify(this.setting, null, 2)
+    }
+  },
+  methods: {
+    ...mapMutations({
+      pageInit: 'd2admin/page/init',
+      headerSet: 'd2admin/menu/headerSet'
+    }),
+    onClick ({ title, name, path, component }) {
+      // vue router 的设计暂时不能支持在路由示例上访问动态添加的路由
+      // 目前可行的解决方法是自行维护一个存储路由数据的位置
+      // https://github.com/vuejs/vue-router/issues/1234
+      // https://github.com/vuejs/vue-router/issues/1859
+      // https://github.com/vuejs/vue-router/issues/1955
+      // https://github.com/vuejs/vue-router/issues/2454
+      // https://github.com/vuejs/vue-router/issues/2280
+      // 所以暂时先不做对路由已经存在的判断
+      const route = [
+        {
+          path: '/demo/playground',
+          component: layoutHeaderAside,
+          children: [
+            {
+              path,
+              name,
+              component: () => import(`@/views/demo/playground/add-routes/alternates/${component}.vue`),
+              meta: {
+                title
+              }
+            }
+          ]
+        }
+      ]
+      this.$router.addRoutes(route)
+      // 更新标签页池
+      this.pageInit([
+        ...frameInRoutes,
+        ...route
+      ])
+      // 演示更新菜单
+      let menuGroup = {
+        title: '临时菜单',
+        icon: 'plus-square',
+        children: []
+      }
+      const menu = {
+        path: `/demo/playground/${path}`,
+        title,
+        icon: 'file-o'
+      }
+      let header = cloneDeep(this.header)
+      const menuGroupIndex = header.findIndex(e => e.title === menuGroup.title)
+      // 如果顶栏菜单已经有这个组，就在组里添加项目，反之新建一个菜单组
+      if (menuGroupIndex >= 0) {
+        header[menuGroupIndex].children.push(menu)
+      } else {
+        menuGroup.children.push(menu)
+        header.push(menuGroup)
+      }
+      this.headerSet(header)
+      // 跳转
+      this.$router.push({ name })
+    }
+  }
+}
+</script>