When using Vuex for state management in Vue, you can use localStorage to store and retrieve data if you need to persist some data. Here is an example:

First, create a storage.js file in the src/utils folder to encapsulate the operation of localStorage:

// 约定一个通用的键名
const INFO_KEY = 'hm_shopping_info'

// 获取个人信息
export const getInfo = () => {
  const defaultObj = { token: '', userId: '' }
  const result = localStorage.getItem(INFO_KEY)
  return result ? JSON.parse(result) : defaultObj
}

// 设置个人信息
export const setInfo = (obj) => {
  localStorage.setItem(INFO_KEY, JSON.stringify(obj))
}

// 移除个人信息
export const removeInfo = () => {
  localStorage.removeItem(INFO_KEY)
}

Then, import and call these methods in the JavaScript file in the store:

import { getInfo, setInfo } from '@/utils/storage'

// 通过getInfo方法获取持久化的个人信息
const info = getInfo()

// 在需要的地方使用setInfo方法进行持久化存储
setInfo({ token: 'xxxx', userId: 'xxxx' })

By calling the getInfo method, the previously stored personal information can be obtained. By calling the setInfo method, the new personal information can be persisted.

Please note that this is just a simple example, and you can modify and extend it to suit your needs.