89 lines
2.2 KiB
JavaScript
89 lines
2.2 KiB
JavaScript
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const DEFAULT_EFFECTIVE_TIME = 90 * 24 * 60 * 60 * 1000
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/**
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* @description: 缓存到localStorage下，有效期默认3个月，可自定义
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* @param {String} 缓存数据对应的Key
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* @param {data} 缓存数据对应的Value
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* @param {milliseconds} 数据获取有效期，毫秒级
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* @return: undefined
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*/
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export function save (key, val, time) {
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if (Object.prototype.toString.call(val) !== '[object Undefined]') {
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let curTime = new Date().getTime()
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let effectiveTime = curTime + (time || DEFAULT_EFFECTIVE_TIME)
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window.localStorage.setItem(key, JSON.stringify({ data: val, time: effectiveTime }))
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}
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}
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/**
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* @description: 获取缓存到localStorage下的数据
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* @param {String} 缓存数据对应的Key
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* @return: 对应的Key的Value数据
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*/
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export function get (key) {
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try {
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let data = window.localStorage.getItem(key)
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if (data) {
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let dataObj = JSON.parse(data)
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if (dataObj.time - new Date().getTime() < 0) {
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remove(key)
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return ''
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} else {
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return dataObj.data
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}
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} else {
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return ''
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}
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} catch (e) {
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return ''
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}
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}
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/**
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* @description: 删除缓存到localStorage下的数据
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* @param {String} 缓存数据对应的Key
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* @return: undefined
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*/
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export function remove (key) {
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window.localStorage.removeItem(key)
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}
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/**
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* @description: 缓存到sessionStorage下
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* @param {String} 缓存数据对应的Key
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* @param {data} 缓存数据对应的Value
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* @return: undefined
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*/
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export function sessionSave (key, val) {
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if (Object.prototype.toString.call(val) !== '[object Undefined]') {
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window.sessionStorage.setItem(key, JSON.stringify(val))
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}
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}
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/**
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* @description: 获取缓存到sessionStorage下的数据
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* @param {String} 缓存数据对应的Key
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* @return: 对应的Key的Value数据
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*/
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export function sessionGet (key) {
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try {
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let data = window.sessionStorage.getItem(key)
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if (data) {
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return JSON.parse(data)
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} else {
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return ''
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}
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} catch (e) {
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return ''
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}
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}
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/**
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* @description: 删除缓存到sessionStorage下的数据
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* @param {String} 缓存数据对应的Key
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* @return: undefined
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*/
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export function sessionRemove (key) {
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window.sessionStorage.removeItem(key)
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}
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