first commit

src/utils/cache/index.js

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+import { createWebStorage } from './webStorage'
+
+export const createLocalStorage = function (option = {}) {
+  return createWebStorage({ prefixKey: option.prefixKey || '', storage: localStorage })
+}
+
+export const createSessionStorage = function (option = {}) {
+  return createWebStorage({ prefixKey: option.prefixKey || '', storage: localStorage })
+}

src/utils/cache/webStorage.js

@@ -0,0 +1,55 @@
+import { isNullOrUndef } from '@/utils/is'
+
+class WebStorage {
+  constructor(option) {
+    this.storage = option.storage
+    this.prefixKey = option.prefixKey
+  }
+
+  getKey(key) {
+    return `${this.prefixKey}${key}`.toUpperCase()
+  }
+
+  set(key, value, expire) {
+    const stringData = JSON.stringify({
+      value,
+      time: Date.now(),
+      expire: !isNullOrUndef(expire) ? new Date().getTime() + expire * 1000 : null,
+    })
+    this.storage.setItem(this.getKey(key), stringData)
+  }
+
+  get(key) {
+    const { value } = this.getItem(key, {})
+    return value
+  }
+
+  getItem(key, def = null) {
+    const val = this.storage.getItem(this.getKey(key))
+    if (!val) return def
+    try {
+      const data = JSON.parse(val)
+      const { value, time, expire } = data
+      if (isNullOrUndef(expire) || expire > new Date().getTime()) {
+        return { value, time }
+      }
+      this.remove(key)
+      return def
+    } catch (error) {
+      this.remove(key)
+      return def
+    }
+  }
+
+  remove(key) {
+    this.storage.removeItem(this.getKey(key))
+  }
+
+  clear() {
+    this.storage.clear()
+  }
+}
+
+export function createWebStorage({ prefixKey = '', storage = sessionStorage }) {
+  return new WebStorage({ prefixKey, storage })
+}