众所周知，vue可以用来开发移动端app，可以使用hbuilder将build好的vue打包成一个移动端app，但是用过之后就会发现，使用cookies或者session保存登录的token，在手机端无法保存，每次打开app依然提示登录。那么我们可以使用localStorage来保存登录信息就可以了，具体代码如下

1、vuex stroe代码

index.js

import Vue from 'vue'import vuex from 'vuex'import { login, logout, getInfo } from '@/api/login'import { getToken, setToken, removeToken, setlocalStorage, getlocalStorage, removelocalStorage } from '@/utils/user'Vue.use(vuex);//state为访问状态对象 数字常量等const state = { x:5, token: getlocalStorage(), nickname: '', course_id: 0, user_id: 0, group_id: 0, begin_group_num: 0, student_group: 0};//访问触发状态mutation是同步的//actions是异步的const mutations = { SET_TOKEN: (state, token) => { state.token = token }, SET_NAME: (state, nickname) => { state.nickname = nickname },};const actions = { Login({ commit }, userInfo) { const username = userInfo.username.trim() return new Promise((resolve, reject) => { login(username, userInfo.password).then(response => { const data = response.data setlocalStorage(data.token) commit('SET_TOKEN', data.token) resolve() }).catch(error => { console.log() reject(error) }) }) }, GetInfo({ commit }) { return new Promise((resolve, reject) => { getInfo().then(response => { const data = response.data console.log(data) commit('SET_NAME', data.nickname) resolve() }).catch(error => { console.log() }) }) }, // 前端 登出 FedLogOut({ commit }) { return new Promise(resolve => { commit('SET_TOKEN', '') removelocalStorage() resolve() }) }};//getters 类似于生命周期里面的钩子，getters是在页面刚刚加载完毕之后马上加载，类似于生命周期里面的createdconst getters = { // 测试getters x: state => state.x + 200,};export default new vuex.Store({ state, mutations, getters, actions})

2、localStorage 代码

user.js

import Cookies from 'js-cookie'const TokenKey = 'MuseUi-Token'export function getToken() { return Cookies.get(TokenKey)}export function setToken(token) { return Cookies.set(TokenKey, token)}export function removeToken() { return Cookies.remove(TokenKey)}const SessionKey = 'usertoken'export function setlocalStorage(token) { return localStorage.setItem(SessionKey,token)}export function getlocalStorage() { return localStorage.getItem(SessionKey)}export function removelocalStorage() { return localStorage.setItem(SessionKey,null)}

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