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61 lines
1.6 KiB
61 lines
1.6 KiB
2 years ago
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/**
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* 获取storage
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* @param key 保存时的key
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* @param hour 如果保存时使用了时间，则需要传true
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* @param expired 指定已过期时返回的值，过期默认返回undefined
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*/
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export const getStorage = (key: string, hour?: boolean, expired?: string) => {
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let data: any
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if (hour) {
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data = window.localStorage.getItem(key)
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try {
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data = JSON.parse(data)
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if (typeof data === 'object' && data.__value && data.__time) {
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// 使用了时间的
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// 在当前时间后，表示没过期
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if (new Date().getTime() < data.__time) {
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data = data.__value
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} else {
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// 过期了
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data = expired || undefined
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}
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}
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} catch (e) {
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/* empty */
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}
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} else {
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//保存时没传时间的，存在session里
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data = window.sessionStorage.getItem(key)
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}
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try {
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return JSON.parse(data)
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} catch (e) {
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return data
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}
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}
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/** 设置 localStorage 添加对时间的控制，hour单位为小时
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* hour空时使用原始sessionStorage(key,value)，即关闭浏览器过期
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* hour=0时，使用localStorage，即永不过期
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* hour>0时localStorage添加时间控制
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* */
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export function setStorage(key: string, data: any, hour?: number | null): void {
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let newData = data
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if (typeof data === 'object') {
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newData = JSON.stringify(data)
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}
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if (hour === 0) {
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window.localStorage.setItem(key, newData)
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} else if (hour && hour > 0) {
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const now = new Date()
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const valueDate: string = JSON.stringify({
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__value: data,
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__time: now.setSeconds(now.getSeconds() + hour * 3600)
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})
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window.localStorage.setItem(key, valueDate)
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} else {
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window.sessionStorage.setItem(key, newData)
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}
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}
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