Vue实现动态路由导航的示例

const router = new VueRouter({ routes });
 
router.beforeEach((to, from, next) => {
  const isover = to.matched.some(record => record.path == '/over')
  if (isover || to.path == '/overview') {
    if (!store.getters.token) {  // 未登录
      next('/login'); 
      return
    }
    if (!isHome) {
      next();  
      return
    }
  } else {
    next()  // 无需登录验证
  }
})

// BAD
router.beforeEach((to, from, next) => {
  if (to.name !== 'Login' && !isAuthenticated) next({ name: 'Login' })
  // 如果用户未能验证身份，则 `next` 会被调用两次
  next()
})

// GoOD
router.beforeEach((to, from, next) => {
  if (to.name !== 'Login' && !isAuthenticated) next({ name: 'Login' })
  else next()
})

// 路由守卫
router.beforeEach((to, from, next) => {
  localStorage.setItem("currentPathName", to.name)  // 设置当前的路由名称，为了在Header组件中去使用
  store.commit("setPath")  // 触发store的数据更新
  next()  // 放行路由
})

import Vue from 'vue'
import Vuex from 'vuex'
 
Vue.use(Vuex)
 
const store = new Vuex.Store({
  state: {
    currentPathName: ''
  },
  mutations: {
    setPath (state) {
      state.currentPathName = localStorage.getItem("currentPathName")
    }
  }
})
 
export default store
 

import Vue from 'vue'
import App from './App.vue'
import router from './router'
import store from "@/store";
import ElementUI from 'element-ui';
import 'element-ui/lib/theme-chalk/index.CSS';
import request from "@/utils/request";
import './assets/css/global.css'
// import * as echarts from 'echarts'
Vue.config.productionTip = false
 
Vue.use(ElementUI,{size: "mini"});
 
Vue.prototype.request = request;
 
new Vue({
  router,
  store,
  render: h => h(App)
}).$mount('#app')
 

<template>
  <div style="display: flex; line-height: 35px; background-color: whitesmoke">
    <div style="flex: 1">
      <span :class="collapseBtnClass" style="cursor: pointer; font-size: 18px"></span>
      <el-breadcrumb separator="/" style="display: inline-block; margin-left: 10px">
        <img src="../assets/images/宿舍管理.png" alt=""
             style="width: 30px; position: relative; top: 20px; right: 5px">
        <h3 style="margin-left: 30px; color: lightskyblue">宿舍后台管理</h3>
          <el-breadcrumb-item :to="'/'" style="margin-left: 200px; margin-top: -10px">首页</el-breadcrumb-item>
          <el-breadcrumb-item style="margin-top: -10px;">{{ currentPathName }}</el-breadcrumb-item>
      </el-breadcrumb>
    </div>
    <el-dropdown style="width: 130px; cursor: pointer">
      <div style="display: inline-block; float: right; margin-right: 10px">
        <img :src="user.avatarUrl" alt=""
             style="width: 30px; border-radius: 50%; position: relative; top: 10px; right: 5px">
        <span>{{user.nickname}}</span><i class="el-icon-arrow-down" style="margin-left: 5px"></i>
      </div>
      <el-dropdown-menu slot="dropdown" style="width: 100px; text-align: center">
        <el-dropdown-item style="font-size: 14px; padding: 5px 0">
          <span style="text-decoration: none" @click="person">个人信息</span>
        </el-dropdown-item>
        <el-dropdown-item style="font-size: 14px; padding: 5px 0">
          <span style="text-decoration: none" @click="logout">退出登录</span>
        </el-dropdown-item>
      </el-dropdown-menu>
    </el-dropdown>
  </div>
</template>
 
<script>
export default {
  name: "Header",
  props: {
    collapseBtnClass: String,
    user: Object
  },
  computed: {
    currentPathName () {
      return this.$store.state.currentPathName;　　//需要监听的数据
    }
  },
  data() {
    return {
      user: localStorage.getItem("user") ? JSON.parse(localStorage.getItem("user")) : {}
    }
  },
  methods: {
    logout() {
      this.$router.push("/login")
      this.$message.success("退出成功")
    },
    person(){
      this.$router.push("/mall/person")
    }
  }
}
</script>
 
<style scoped>
 
</style>