Vue.js寫一個(gè)SPA登錄頁面的實(shí)例

// component/App.vue
<template><div class="container" id="app"> <transition name="fade"><keep-alive> <router-view></router-view></keep-alive> </transition></div></template>
...

// js/app.jsimport Vue from 'vue'import VueRouter from 'vue-router'import Login from '../component/Login.vue'import UserInfo from '../component/UserInfo.vue'

Vue.use(VueRouter);const router = new VueRouter({ routes: [{path: '/login',component: Login
 }, {path: '/user_info',component: UserInfo
 }]
})
...

// js/app.js
...
var app = new Vue({ data: {}, el: '#app', render: h => h(App),
 router,
 store, methods:{
 checkLogin(){ //檢查是否存在session //cookie操作方法在源碼里有或者參考網(wǎng)上的即可 if(!this.getCookie('session')){//如果沒有登錄狀態(tài)則跳轉(zhuǎn)到登錄頁this.$router.push('/login');
 }else{//否則跳轉(zhuǎn)到登錄后的頁面this.$router.push('/user_info');
 }
 }
 }
})

// js/app.js
...
var app = new Vue({
 ...
 created() {this.checkLogin();
 }, methods:{
 checkLogin(){
 ...
 }
 }
})

// js/app.js
...
var app = new Vue({
 ... //監(jiān)聽路由檢查登錄
 watch:{"$route" : 'checkLogin'
 }, //進(jìn)入頁面時(shí)
 created() {this.checkLogin();
 }, methods:{
 checkLogin(){
 ...
 }
 }
})

// component/App.vue
...
<script>export default {
 ...
 mounted(){//組件開始掛載時(shí)獲取用戶信息this.getUserInfo();
 }, methods: {//請求用戶的一些信息
 getUserInfo(){ this.userInfo = {nick: 'Doterlin',ulevel: 20,uid: '10000',portrait: 'images/profile.png'
 } //獲取信息請求
 ts.$http.get(url, {//參數(shù)"params": this.userInfo
 }).then((response) => {//Successif(response.data.code == 0){ this.$store.commit('updateUserInfo', this.userInfo); 
 }
 }, (response) => {//Error
 });

 }
 }
}
</script>
...

// js/app.js// Vuex配置
...
const store = new Vuex.Store({ state: {domain:'http://test.example.com', //保存后臺請求的地址，修改時(shí)方便（比方說從測試服改成正式服域名）
 userInfo: { //保存用戶信息
 nick: null, ulevel: null, uid: null, portrait: null
 }
 }, mutations: {//更新用戶信息
 updateUserInfo(state, newUserInfo) {
 state.userInfo = newUserInfo;
 }
 }
})
...

//component/Login.vue
<template><div class="login" id="login">
 ...<div class="log-email"><input type="text" placeholder="Email" :class="'log-input' + (account==''?' log-input-empty':'')" v-model="account"><input type="password" placeholder="Password" :class="'log-input' + (password==''?' log-input-empty':'')" v-model="password"><a href="javascript:;" class="log-btn" @click="login">Login</a></div>
 ...</div></template><script>import Loading from './Loading.vue'export default { name: 'Login',
 data(){ return { isLoging: false, account: '', password: ''
 }
 }, components:{
 Loading
 }, methods:{ //登錄邏輯
 login(){ if(this.account!='' && this.password!=''){ this.toLogin();
 }
 }

}</script>
...

... //登錄請求
 toLogin(){ //一般要跟后端了解密碼的加密規(guī)則 //這里例子用的哈希算法來自./js/sha1.min.js let password_sha = hex_sha1(hex_sha1( this.password )); //需要想后端發(fā)送的登錄參數(shù) let loginParam = { account: this.account,
 password_sha
 } //設(shè)置在登錄狀態(tài) this.isLoging = true; //請求后端 this.$http.post( 'example.com/login.php', { param: loginParam).then((response) => {if(response.data.code == 1){ //如果登錄成功則保存登錄狀態(tài)并設(shè)置有效期 let expireDays = 1000 * 60 * 60 * 24 * 15; this.setCookie('session', response.data.session, expireDays); //跳轉(zhuǎn) this.$router.push('/user_info'); 
 }
 }, (response) => {//Error
 });

...

// component/UserInfo.vue
...
 logout(){ //刪除cookie并跳到登錄頁 this.isLogouting = true; //請求后端，比如logout.php // this.$http.post('eaxmple.com/logout.php')... //成功后刪除cookie this.delCookie('session'); //重置loding狀態(tài) this.isLogouting = false; //跳轉(zhuǎn)到登錄頁 this.$router.push('/login/');
 }
..