this.$router.push('/course');this.$router.push({name: course});this.$router.go(-1);this.$router.go(1);<router-link to="/course">課程頁(yè)</router-link><router-link :to="{name: 'course'}">課程頁(yè)</router-link>
routes: [ // ... { path: '/course/:id/detail', name: 'course-detail', component: CourseDetail },]
<template> <!-- 標(biāo)簽跳轉(zhuǎn) --> <router-link :to="`/course/${course.id}/detail`">{{ course.name }}</router-link></template><script> // ... goDetail() { // 邏輯跳轉(zhuǎn) this.$router.push(`/course/${this.course.id}/detail`); }</script>
created() { let id = this.$route.params.id;}
routes: [ // ... { path: '/course/detail', name: 'course-detail', component: CourseDetail },]
<template> <!-- 標(biāo)簽跳轉(zhuǎn) --> <router-link :to="{ name: 'course-detail', query: {id: course.id} }">{{ course.name }}</router-link></template><script> // ... goDetail() { // 邏輯跳轉(zhuǎn) this.$router.push({ name: 'course-detail', query: { id: this.course.id } }); }</script>
created() { let id = this.$route.query.id;}
// 1) localStorage:永久存儲(chǔ)數(shù)據(jù)// 2) sessionStorage:臨時(shí)存儲(chǔ)數(shù)據(jù)(刷新頁(yè)面數(shù)據(jù)不重置,關(guān)閉再重新開啟標(biāo)簽頁(yè)數(shù)據(jù)重置)// 3) cookie:臨時(shí)或永久存儲(chǔ)數(shù)據(jù)(由過期時(shí)間決定)// 4) vuex的倉(cāng)庫(kù)(store.js):臨時(shí)存儲(chǔ)數(shù)據(jù)(刷新頁(yè)面數(shù)據(jù)重置)
export default new Vuex.Store({ state: { title: '默認(rèn)值' }, mutations: { // mutations 為 state 中的屬性提供setter方法 // setter方法名隨意,但是參數(shù)列表固定兩個(gè):state, newValue setTitle(state, newValue) { state.title = newValue; } }, actions: {}})
this.$store.state.title = 'newTitle'this.$store.commit('setTitle', 'newTitle')
console.log(this.$store.state.title)
>: cnpm install vue-cookies
// 第一種import cookies from 'vue-cookies' // 導(dǎo)入插件Vue.use(cookies); // 加載插件new Vue({ // ... cookies, // 配置使用插件原型 $cookies}).$mount('#app');// 第二種import cookies from 'vue-cookies' // 導(dǎo)入插件Vue.prototype.$cookies = cookies; // 直接配置插件原型 $cookies
// 增(改): key,value,exp(過期時(shí)間)// 1 = '1s' | '1m' | '1h' | '1d'this.$cookies.set('token', token, '1y');// 查:keythis.token = this.$cookies.get('token');// 刪:keythis.$cookies.remove('token');
// 1) 什么是token:安全認(rèn)證的字符串// 2) 誰(shuí)產(chǎn)生的:后臺(tái)產(chǎn)生// 3) 誰(shuí)來存儲(chǔ):后臺(tái)存儲(chǔ)(session表、文件、內(nèi)存緩存),前臺(tái)存儲(chǔ)(cookie)// 4) 如何使用:服務(wù)器先生成反饋給前臺(tái)(登陸認(rèn)證過程),前臺(tái)提交給后臺(tái)完成認(rèn)證(需要登錄后的請(qǐng)求)// 5) 前后臺(tái)分離項(xiàng)目:后臺(tái)生成token,返回給前臺(tái) => 前臺(tái)自己存儲(chǔ),發(fā)送攜帶token請(qǐng)求 => 后臺(tái)完成token校驗(yàn) => 后臺(tái)得到登陸用戶
>: cnpm install axios
import axios from 'axios' // 導(dǎo)入插件Vue.prototype.$axios = axios; // 直接配置插件原型 $axios
this.axios({ url: '請(qǐng)求接口', method: 'get|post請(qǐng)求', data: {post等提交的數(shù)據(jù)}, params: {get提交的數(shù)據(jù)}}).then(請(qǐng)求成功的回調(diào)函數(shù)).catch(請(qǐng)求失敗的回調(diào)函數(shù))
// get請(qǐng)求this.$axios({ url: 'http://127.0.0.1:8000/test/ajax/', method: 'get', params: { username: this.username }}).then(function (response) { console.log(response)}).catch(function (error) { console.log(error)});// post請(qǐng)求this.$axios({ url: 'http://127.0.0.1:8000/test/ajax/', method: 'post', data: { username: this.username }}).then(function (response) { console.log(response)}).catch(function (error) { console.log(error)});
// 后臺(tái)接收到前臺(tái)的請(qǐng)求,可以接收前臺(tái)數(shù)據(jù)與請(qǐng)求信息,發(fā)現(xiàn)請(qǐng)求的信息不是自身服務(wù)器發(fā)來的請(qǐng)求,拒絕響應(yīng)數(shù)據(jù),這種情況稱之為 - 跨域問題(同源策略 CORS)// 導(dǎo)致跨域情況有三種// 1) 端口不一致// 2) IP不一致// 3) 協(xié)議不一致// Django如何解決 - django-cors-headers模塊// 1) 安裝:pip3 install django-cors-headers// 2) 注冊(cè):INSTALLED_APPS = [ ... 'corsheaders']// 3) 設(shè)置中間件:MIDDLEWARE = [ ... 'corsheaders.middleware.CorsMiddleware']// 4) 設(shè)置跨域:CORS_ORIGIN_ALLOW_ALL = True
>: cnpm i element-ui -S
import ElementUI from 'element-ui';import 'element-ui/lib/theme-chalk/index.css';Vue.use(ElementUI);
依照官網(wǎng) https://element.eleme.cn/#/zh-CN/component/installation api
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