52 lines
1.2 KiB
JavaScript
52 lines
1.2 KiB
JavaScript
const cache = {
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key: 'app_',
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//设置缓存(expire为缓存时效)
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set(key, value, expire = null) {
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key = this.getKey(key)
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let data = {
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expire: expire ? this.time() + expire : '',
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value
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}
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if (typeof data === 'object') {
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data = JSON.stringify(data)
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}
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try {
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uni.setStorageSync(key, data)
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} catch (e) {
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return null
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}
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},
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get(key) {
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key = this.getKey(key)
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try {
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const data = uni.getStorageSync(key)
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if (!data) {
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return null
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}
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const { value, expire } = JSON.parse(data)
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if (expire && expire < this.time()) {
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uni.removeStorageSync(key)
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return null
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}
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return value
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} catch (e) {
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return null
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}
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},
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//获取当前时间
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time() {
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return Math.round(new Date().getTime() / 1000)
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},
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remove(key) {
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key = this.getKey(key)
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uni.removeStorageSync(key)
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},
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getKey(key) {
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return this.key + key
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}
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}
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export default cache
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