90 lines
1.9 KiB
TypeScript
90 lines
1.9 KiB
TypeScript
const sessionCache = {
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set(key: string, value: any) {
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if (!sessionStorage || key == null || value == null) return;
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try {
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const str = typeof value === 'string' ? value : JSON.stringify(value);
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// 限制：如果数据超过 1MB，就不存
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if (str.length > 1024 * 1024) {
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console.warn(`sessionStorage.setItem(${key}) 跳过，数据过大（${(str.length / 1024).toFixed(2)} KB）`);
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return;
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}
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sessionStorage.setItem(key, str);
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} catch (e) {
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console.error(`sessionStorage.setItem(${key}) 失败:`, e);
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}
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},
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get(key: string) {
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if (!sessionStorage) {
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return null;
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}
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if (key == null) {
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return null;
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}
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return sessionStorage.getItem(key);
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},
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setJSON(key: string, jsonValue: any) {
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if (jsonValue != null) {
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this.set(key, JSON.stringify(jsonValue));
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}
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},
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getJSON(key: string) {
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const value = this.get(key);
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if (value != null) {
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return JSON.parse(value);
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}
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return null;
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},
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remove(key: string) {
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sessionStorage.removeItem(key);
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}
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};
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const localCache = {
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set(key: string, value: any) {
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if (!localStorage) {
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return;
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}
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if (key != null && value != null) {
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localStorage.setItem(key, value);
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}
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},
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get(key: string) {
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if (!localStorage) {
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return null;
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}
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if (key == null) {
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return null;
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}
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return localStorage.getItem(key);
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},
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setJSON(key: string, jsonValue: any) {
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if (jsonValue != null) {
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this.set(key, JSON.stringify(jsonValue));
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}
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},
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getJSON(key: string) {
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const value = this.get(key);
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if (value != null) {
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return JSON.parse(value);
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}
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return null;
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},
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remove(key: string) {
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localStorage.removeItem(key);
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}
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};
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export default {
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/**
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* 会话级缓存
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*/
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session: sessionCache,
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/**
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* 本地缓存
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*/
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local: localCache
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};
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