Storage.ts
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import { EncryptionParams } from '/@/utils/cipher/aesEncryption';
export interface CreateStorageParams extends EncryptionParams {
storage: Storage;
hasEncrypt: boolean;
}
const defaultTime = 60 * 60 * 24 * 7;
export const createStorage = ({ prefixKey = '', storage = sessionStorage } = {}) => {
/**
*缓存类
*构造参数可以传入 sessionStorage,localStorage,
* @class Cache
* @example
*/
const WebStorage = class WebStorage {
private storage: Storage;
private prefixKey?: string;
/**
*
* @param {*} storage
*/
constructor() {
this.storage = storage;
this.prefixKey = prefixKey;
}
private getKey(key: string) {
return `${this.prefixKey}${key}`.toUpperCase();
}
/**
*
* 设置缓存
* @param {string} key 缓存键
* @param {*} value 缓存值
* @expire 过期时间 单位秒
* @memberof Cache
*/
set(key: string, value: any, expire: number | null = defaultTime) {
const stringData = JSON.stringify({
value,
expire: expire !== null ? new Date().getTime() + expire * 1000 : null,
});
this.storage.setItem(this.getKey(key), stringData);
}
/**
*
*读取缓存
* @param {string} key 缓存键
* @returns 缓存值
* @memberof Cache
*/
get(key: string, def: any = null): any {
const item = this.storage.getItem(this.getKey(key));
if (item) {
try {
const data = JSON.parse(item);
const { value, expire } = data;
if (expire === null || expire >= new Date().getTime()) {
return value;
}
this.remove(this.getKey(key));
} catch (e) {
return def;
}
}
return def;
}
/**
*
*删除缓存
* @param {string} key 缓存键
* @memberof Cache
*/
remove(key: string) {
this.storage.removeItem(this.getKey(key));
}
/**
*
*删除该实例所有缓存
* @memberof Cache
*/
clear(): void {
this.storage.clear();
}
/**
* 添加cookie
* @param name cookie名字
* @param value cookie内容
* @param day 过期时间
* 如果过期时间未设置,默认管理浏览器自动删除
* 例子:
* cookieData.set('name','value',)
*/
setCookie(name: string, value: any, expire: number | null = defaultTime) {
document.cookie = this.getKey(name) + '=' + value + '; Max-Age=' + expire;
}
/**
* 根据名字获取cooki值
* @param name cookie名
* @returns {*} cookie值
*/
getCookie(name: string) {
const arr = document.cookie.split('; ');
for (let i = 0; i < arr.length; i++) {
const arr2 = arr[i].split('=');
if (arr2[0] === this.getKey(name)) {
return arr2[1];
}
}
return '';
}
/**
* 根据cookie名字删除cookie
* @param name cookie名字
*/
removeCookie(key: string) {
this.setCookie(key, 1, -1);
}
clearCookie(): void {
const keys = document.cookie.match(/[^ =;]+(?==)/g);
if (keys) {
for (let i = keys.length; i--; ) {
document.cookie = keys[i] + '=0;expires=' + new Date(0).toUTCString();
}
}
}
};
return new WebStorage();
};