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50 lines
1.1 KiB
JavaScript
50 lines
1.1 KiB
JavaScript
var postfix = '_deadtime';
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/**存储数据 并指定有效时间 */
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function put(k, v, t) {
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// console.log(k);
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wx.setStorageSync(k, v)
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var seconds = parseInt(t);
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if (seconds > 0) {
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var timestamp = Date.parse(new Date());
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timestamp = timestamp / 1000 + seconds;
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// console.log(timestamp);
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wx.setStorageSync(k + postfix, timestamp + "")
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} else {
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wx.removeStorageSync(k + postfix)
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}
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}
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/**获取数据 1:校验是否在有效期 2:true 返回指定keyvalue 否则返回 def*/
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function get(k, def) {
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var deadtime = parseInt(wx.getStorageSync(k + postfix))
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if (deadtime) {
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if (parseInt(deadtime) < Date.parse(new Date()) / 1000) {
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if (def) { return def; } else { return; }
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}
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}
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var res = wx.getStorageSync(k);
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if (res) {
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return res;
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} else {
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return def;
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}
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}
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/**删除指定key 以及指定key有效时间缓存 */
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function remove(k) {
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wx.removeStorageSync(k);
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wx.removeStorageSync(k + postfix);
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}
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/**清空缓存 */
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function clear() {
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wx.clearStorageSync();
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}
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module.exports = {
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put: put,
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get: get,
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remove: remove,
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clear: clear,
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}
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