提示:前端页面的跳转需要加路由来进一步处理!!!
前端如果没有登录过,就不会产生token,则自动的跳转到登录页面,这个就是路由守卫【类似于后端的过滤器、拦截器】
通过router.beforeEach((to,from,next)=>{ })实现
import router from "@/router/index"
import store from "@/store"
router.beforeEach((to,from,next)=>{
const whiteList=['/login'] // 白名单
let token=store.getters.GET_TOKEN;
if(token){
next();
}else{
if(whiteList.includes(to.path)){
next();
}else{
next("/login")
}
}
})
以往我们的路由都是写在router/index.js文件中写死了,通过硬编码处理
我们vue中的路由信息,需要通过后端查询的menuList,动态设置到router里面去;
import router from "@/router/index"
import store from "@/store"
router.beforeEach((to,from,next)=>{
const whiteList=['/login'] // 白名单
let token=store.getters.GET_TOKEN;
let hasRoutes=store.state.hasRoutes;
let menuList=store.getters.GET_MENULIST;
if(token){
if(!hasRoutes){
bindRoute(menuList);
store.commit("SET_ROUTES_STATE",true);
}
next();
}else{
if(whiteList.includes(to.path)){
next();
}else{
next("/login")
}
}
})
// 动态绑定路由
const bindRoute=(menuList)=>{
let newRoutes=router.options.routes;
menuList.forEach(menu=>{
if(menu.children){
menu.children.forEach(m=>{
let route=menuToRoute(m,menu.name);
if(route){
newRoutes[0].children.push(route);
}
})
}
})
// 重新添加到路由
newRoutes.forEach(route=>{
router.addRoute(route)
})
}
// 菜单对象转成路由对象
const menuToRoute=(menu,parentName)=>{
if(!menu.component){
return null;
}else{
let route={
name:menu.name,
path:menu.path,
meta:{
parentName:parentName
}
}
route.component=()=>import('@/views/'+menu.component+'.vue');
return route;
}
}
import { createRouter, createWebHashHistory } from 'vue-router'
const routes = [
{
path: '/',
name: '首页',
component: () => import('../layout'),
redirect:'/index',
children:[
{
path: '/index',
name: '首页',
component: () => import('../views/index/index')
},
{
path: '/userCenter',
name: '个人中心',
component: () => import('../views/userCenter/index')
},
]
},
{
path: '/login',
name: 'login',
component: () => import('../views/Login.vue')
}
]
const router = createRouter({
history: createWebHashHistory(),
routes
})
export default router
实现点击左边导航栏之后可以查看到视图渲染的位置有对应的变化即可!!
需求:通过点击左侧的导航栏在中间部分动态的创建选项卡,在注销登录的时候重置
state: {
hasRoutes:false,
editableTabsValue:'/index',
editableTabs:[
{
title:'首页',
name:'/index'
}
]
},
ADD_TABS:(state,tab)=>{
if(state.editableTabs.findIndex(e=>e.name===tab.path)===-1){
state.editableTabs.push({
title:tab.name,
name:tab.path
})
}
state.editableTabsValue=tab.path
},
RESET_TABS:(state)=>{
state.editableTabsValue='/index';
state.editableTabs=[
{
title:'首页',
name:'/index'
}
]
},
<script setup>
import { ref } from 'vue'
import store from '@/store'
const editableTabsValue = ref(store.state.editableTabsValue)
const editableTabs = ref(store.state.editableTabs)
const removeTab = (targetName) => {
const tabs = editableTabs.value
let activeName = editableTabsValue.value
if (activeName === targetName) {
tabs.forEach((tab, index) => {
if (tab.name === targetName) {
const nextTab = tabs[index + 1] || tabs[index - 1]
if (nextTab) {
activeName = nextTab.name
}
}
})
}
editableTabsValue.value = activeName
editableTabs.value = tabs.filter((tab) => tab.name !== targetName)
}
</script>
import {useRouter} from 'vue-router'
const router=useRouter();
const clickTab=(target)=>{
console.log("target.props.label="+target.props.label)
router.push({name:target.props.label})
}
const removeTab = (targetName) => {
const tabs = editableTabs.value
let activeName = editableTabsValue.value
if(activeName==='/index'){
return
}
if (activeName === targetName) {
tabs.forEach((tab, index) => {
if (tab.name === targetName) {
const nextTab = tabs[index + 1] || tabs[index - 1]
if (nextTab) {
activeName = nextTab.name
}
}
})
}
editableTabsValue.value = activeName
editableTabs.value = tabs.filter((tab) => tab.name !== targetName)
store.state.editableTabsValue=editableTabsValue.value;
store.state.editableTabs=editableTabs.value;
router.push({path:activeName})
}
<template>
<el-tabs
v-model="editableTabsValue"
type="card"
class="demo-tabs"
closable
@tab-remove="removeTab"
@tab-click="clickTab"
>
<el-tab-pane
v-for="item in editableTabs"
:key="item.name"
:label="item.title"
:name="item.name"
>
{{ item.content }}
el-tab-pane>
el-tabs>
template>
<script setup>
import { ref,watch } from 'vue'
import store from '@/store'
import {useRouter} from 'vue-router'
const router=useRouter();
const clickTab=(target)=>{
console.log("target.props.label="+target.props.label)
router.push({name:target.props.label})
}
const editableTabsValue = ref(store.state.editableTabsValue)
const editableTabs = ref(store.state.editableTabs)
const removeTab = (targetName) => {
const tabs = editableTabs.value
let activeName = editableTabsValue.value
if(activeName==='/index'){
return
}
if (activeName === targetName) {
tabs.forEach((tab, index) => {
if (tab.name === targetName) {
const nextTab = tabs[index + 1] || tabs[index - 1]
if (nextTab) {
activeName = nextTab.name
}
}
})
}
editableTabsValue.value = activeName
editableTabs.value = tabs.filter((tab) => tab.name !== targetName)
store.state.editableTabsValue=editableTabsValue.value;
store.state.editableTabs=editableTabs.value;
router.push({path:activeName})
}
//刷新tabs的value值
const refreshTabs=()=>{
editableTabsValue.value=store.state.editableTabsValue;
editableTabs.value=store.state.editableTabs;
}
//深度监测
watch(store.state,()=>{
refreshTabs();
},{deep:true,immediate:true})
script>
<style>
.demo-tabs > .el-tabs__content {
padding: 32px;
color: #6b778c;
font-size: 32px;
font-weight: 600;
}
.el-main{
padding:0px;
}
.el-tabs--card>.el-tabs__header .el-tabs__item.is-active{
background-color: lightgray;
}
.el-tabs{
height:45px
}
style>
直接参考官网操作即可https://element-plus.gitee.io/zh-CN/component/breadcrumb.html
<template>
<el-icon><HomeFilled /></el-icon>
<el-breadcrumb separator="/">
<el-breadcrumb-item v-for="(item,index) in breadcrumbList">
<span class="root" v-if="parentName && index>0">{{parentName}} / </span>
<span v-if="index==breadcrumbList.length-1">{{item.name}}</span>
<span class="root" v-else>{{item.name}}</span>
</el-breadcrumb-item>
</el-breadcrumb>
</template>
<script setup>
import {HomeFilled} from '@element-plus/icons-vue'
import {useRoute} from 'vue-router'
import { ref ,watch} from 'vue'
import store from "@/store";
const route=useRoute();
const breadcrumbList=ref([])
const parentName=ref("")
const initBreadcrumbList=()=>{
breadcrumbList.value=route.matched;
parentName.value=route.meta.parentName;
}
watch(route,()=>{
initBreadcrumbList();
},{deep:true,immediate:true})
</script>
<style lang="scss" scoped>
.root{
color:#666;
font-weight:600;
}
</style>
<template>
<div className="home">
欢迎使用,锅锅通用权限系统 !
div>
template>
<script>
export default {
name: "index"
};
script>
<style lang="scss" scoped>
.home{
padding: 40px;
font-size: 30px;
font-weight: bold;
}
style>
为了确保之后的路由与导航不出问题需要进行进一步的处理
import store from '@/store'
import { ref ,watch} from 'vue'
import { useRoute,useRouter } from 'vue-router'
const route=useRoute();
const router=useRouter();
const whitePath=['/login','/index','/']
watch(route,(to,from)=>{
console.log("to"+to.name)
console.log(to.path)
if (whitePath.indexOf(to.path)===-1) {
console.log("to.path="+to.path)
let obj = {
name: to.name,
path: to.path
}
store.commit("ADD_TABS", obj)
}
},{deep:true,immediate:true})
可能有很多同学不知道为什么添加一个router-link就可以实现新增一个选项卡, 是因为在App.vue中我们进行了判断处理哦!!!
提示:本小结处理的是左侧动态导航栏中的动态创建选项卡的实现、细节的处理路由跳转以及延伸到个人中心等的路由跳转处理等!!!
本章的第七小节完毕,敬请期待后续更新(可留言需要学习哪方面的内容哈)!如果需要源码或者工具的朋友们可关注微信公众号"锅锅编程生活"或者扫描二维码关注回复关键字/后台留言获取即可!