first commit

src/utils/cache.js

@@ -0,0 +1,51 @@
+const cache = {
+    key: 'app_',
+
+    //设置缓存(expire为缓存时效)
+    set(key, value, expire = null) {
+        key = this.getKey(key)
+        let data = {
+            expire: expire ? this.time() + expire : '',
+            value
+        }
+
+        if (typeof data === 'object') {
+            data = JSON.stringify(data)
+        }
+        try {
+            uni.setStorageSync(key, data)
+        } catch (e) {
+            return null
+        }
+    },
+    get(key) {
+        key = this.getKey(key)
+        try {
+            const data = uni.getStorageSync(key)
+            if (!data) {
+                return null
+            }
+            const { value, expire } = JSON.parse(data)
+            if (expire && expire < this.time()) {
+                uni.removeStorageSync(key)
+                return null
+            }
+            return value
+        } catch (e) {
+            return null
+        }
+    },
+    //获取当前时间
+    time() {
+        return Math.round(new Date().getTime() / 1000)
+    },
+    remove(key) {
+        key = this.getKey(key)
+        uni.removeStorageSync(key)
+    },
+    getKey(key) {
+        return this.key + key
+    }
+}
+
+export default cache