153 lines
3.4 KiB
JavaScript
153 lines
3.4 KiB
JavaScript
// +----------------------------------------------------------------------
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// | CRMEB [ CRMEB赋能开发者，助力企业发展 ]
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// +----------------------------------------------------------------------
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// | Copyright (c) https://www.crmeb.com All rights reserved.
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// +----------------------------------------------------------------------
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// | Licensed CRMEB并不是自由软件，未经许可不能去掉CRMEB相关版权
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// +----------------------------------------------------------------------
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// | Author: CRMEB Team <admin@crmeb.com>
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// +----------------------------------------------------------------------
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import { EXPIRE } from '../config/app';
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class Cache {
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constructor(handler) {
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this.cacheSetHandler = uni.setStorageSync;
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this.cacheGetHandler = uni.getStorageSync;
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this.cacheClearHandler = uni.removeStorageSync;
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this.cacheExpire = '_expire_2019_12_17_18_44';
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}
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/**
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* 获取当前时间戳
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*/
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time()
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{
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return Math.round(new Date() / 1000);
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}
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/**
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* 设置过期时间缓存
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* @param {Object} key
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* @param {Object} expire
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*/
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setExpireCahe(key,expire)
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{
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expire = expire !== undefined ? expire : EXPIRE;
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if (expire) {
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this.cacheSetHandler(key + this.cacheExpire,this.time() + expire)
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}
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}
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/**
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* 缓存是否过期,过期自动删除
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* @param {Object} key
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* @param {Object} $bool true = 删除,false = 不删除
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*/
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getExpireCahe(key,$bool)
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{
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try{
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let time = this.cacheGetHandler(key + this.cacheExpire);
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if (time) {
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let newTime = parseInt(time);
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if (time && time < this.time() && !Number.isNaN(newTime)) {
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if ($bool === undefined || $bool === true) {
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this.cacheClearHandler(key);
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this.cacheClearHandler(key + this.cacheExpire);
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}
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return false;
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} else
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return true;
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} else {
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return !!this.cacheGetHandler(key);
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}
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}catch(e){
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return false;
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}
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}
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/**
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* 设置缓存
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* @param {Object} key
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* @param {Object} data
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*/
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set(key,data,expire){
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if(typeof data === 'object')
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data = JSON.stringify(data);
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try{
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this.setExpireCahe(key,expire);
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return this.cacheSetHandler(key,data);
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}catch(e){
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return false;
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}
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}
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/**
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* 检测缓存是否存在
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* @param {Object} key
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*/
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has(key)
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{
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return this.getExpireCahe(key);
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}
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/**
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* 获取缓存
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* @param {Object} key
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* @param {Object} $default
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* @param {Object} expire
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*/
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get(key,$default,expire){
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try{
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let isBe = this.getExpireCahe(key);
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let data = this.cacheGetHandler(key);
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if (data && isBe) {
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if (typeof $default === 'boolean')
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return JSON.parse(data);
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else
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return data;
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} else {
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if (typeof $default === 'function') {
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let value = $default();
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this.set(key,value,expire);
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return value;
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} else {
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this.set(key,$default,expire);
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return $default;
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}
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}
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}catch(e){
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return null;
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}
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}
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/**
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* 删除缓存
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* @param {Object} key
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*/
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clear(key)
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{
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try{
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let cahceValue = this.cacheGetHandler(key + this.cacheExpire);
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if(cahceValue)
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this.cacheClearHandler(key + this.cacheExpire);
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return this.cacheClearHandler(key);
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}catch(e){
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return false;
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}
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}
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/**
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* 清除过期缓存
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*/
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clearOverdue()
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{
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// let cacheList = uni.getStorageInfoSync(),that = this;
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// if (typeof cacheList.keys === 'object'){
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// cacheList.keys.forEach(item=>{
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// that.getExpireCahe(item);
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// })
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// }
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}
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}
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export default new Cache; |