封装缓存类

take-order/common/cache.js

+class cache {
+	//存储在本地缓存指定的name中
+	setCache(name, data) {
+		try {
+			uni.setStorageSync(name, data);
+		} catch (e) {
+			console.log(e)
+		}
+	}
+ 
+	//从本地缓存中读取置顶name对应的内容
+	getCache(name) {
+		let data;
+		try {
+			data = uni.getStorageSync(name);
+		} catch (e) {
+			console.log(e);
+		}
+		return data;
+	}
+ 
+	//从本地缓存中移出指定key
+	removeCache(name) {
+		try {
+			uni.removeStorageSync(name);
+		} catch (e) {
+			//TODO handle the exception
+			console.log(e);
+		}
+	}
+ 
+	//返回一个布尔值,表示name是否在本地缓存之中
+	checkCache(name) {
+		let value;
+		try {
+			const res = uni.getStorageInfoSync()
+			value = res.keys.includes(name)
+		} catch (e) {
+			console.log(e)
+		}
+		return value
+	}
+	
+	//清除本地数据缓存
+	clearCache(){
+		try{
+			uni.clearStorageSync();
+		}catch(e){
+			console.log(e)
+		}
+	}
+}
+
+let cacheFunc = new cache();
+export default cacheFunc;
\ No newline at end of file