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export const config = {
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// 图片临时储存保留的时间，单位秒，默认30秒
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imageCacheTime: 30000000000000000000,
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}
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/**
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* 缓存方法
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* @param {*} key 要设置缓存的key
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* @param {*} val 要设置缓存的值
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* @param {*} timeout 要设置缓存的过期时间
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* @returns
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* 使用:1、设置缓存：storage(key,val)
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* 2、设置缓存有效期：storage(key,val,timeout),其中timeout为秒数
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* 3、获取缓存：storage(key)
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* 4、清除缓存:storage(key,null)
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*/
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export const storage = (key, val, timeout) => {
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if (key) {
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const date = new Date()
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if (val === null) {
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// 清除缓存
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uni.removeStorageSync(`${key}_timeout`)
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return uni.removeStorageSync(key)
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} else if (val === undefined && timeout === undefined) {
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// 获取缓存
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const cache = uni.getStorageSync(key)
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if (cache === undefined) {
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return undefined
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} else {
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const expired = uni.getStorageSync(`${key}_timeout`)
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if (expired && date > expired) {
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uni.removeStorageSync(key)
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uni.removeStorageSync(`${key}_timeout`)
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return undefined
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}
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return cache
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}
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} else if (val !== undefined) {
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// 存储缓存
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if (timeout) {
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let throughSecond = 0
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if (typeof timeout === 'number') {
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throughSecond = timeout
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} else if (typeof timeout === 'string') {
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const number = parseInt(timeout)
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const unit = timeout.charAt(timeout.length - 1)
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if (number && number > 0) {
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if (unit === 'd' || unit === 'day' || unit === 'D') {
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throughSecond = number * 60 * 60 * 24
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} else if (unit === 'h' || unit === 'hour' || unit === 'H') {
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throughSecond = number * 60 * 60
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} else if (unit === 'm' || unit === 'minute' || unit === 'H') {
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throughSecond = number * 60
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} else {
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throughSecond = number
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|
}
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}
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}
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|
if (throughSecond) {
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|
const expired = new Date(throughSecond * 1000 + new Date().valueOf())
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|
uni.setStorageSync(`${key}_timeout`, expired)
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}
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}
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return uni.setStorageSync(key, val)
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}
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}
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return undefined
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|
|
}
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|
/**
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|
|
* 描述：使用缓存的标识，为了后面能统一精准在storage里面辨别
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|
* 永久储存：不加_temp
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|
* 临时储存：加_temp后缀
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|
|
*/
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|
|
export const CHCHEPREFIX = {
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|
|
// 默认-永久储存
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|
|
default: 'default',
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|
|
// 默认-临时储存
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|
|
default_temp: 'default_temp',
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|
|
}
|
