cache.js
899 Bytes
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
const Cache = {
keyPrev: 'yanghu_',
// 设置缓存(expire为缓存时效)
set(key, value, expire) {
let data = {
expire: expire ? (this.time() + expire) : '',
value
}
if (typeof data === 'object')
data = JSON.stringify(data)
try {
uni.setStorageSync(this.getKey(key), data)
} catch (e) {
return false
}
},
// 获取缓存
get(key) {
try {
let data = uni.getStorageSync(this.getKey(key))
const {value, expire} = JSON.parse(data)
if(expire && expire < this.time()) {
uni.removeStorageSync(this.getKey(key))
return false
}else {
return value
}
} catch (e) {
return false
}
},
// 获取当前时间
time() {
return Math.round(new Date() / 1000)
},
// 删除缓存
remove(key) {
if(key) uni.removeStorageSync(this.getKey(key))
},
// 获取缓存键名
getKey(key) {
return this.keyPrev + key
}
}
export default Cache