javascript - 购物车模块的业务逻辑
在线求一个类似京东或者淘宝的购物车模块业务逻辑或者示例！
像用户未登录和已登陆两种情况的购物车数据处理是如何，存在什么地方
求大神给些思路或者示例
回复内容：
在线求一个类似京东或者淘宝的购物车模块业务逻辑或者示例！
像用户未登录和已登陆两种情况的购物车数据处理是如何，存在什么地方
求大神给些思路或者示例
都一样，存在session里
key-value的数据库里，未登录就生成个匿名用户ID保存，登录后2条记录合并
登录状态直接写入数据库中。
未登录状态将信息写入redis(作缓存)中，登录后获取redis中信息进行持久化操作即可
入数据库就行，不登录的时候以session作为标识，登录的时候以user_id作为标识。
具体实现直接百度
思路就是存进一个存储库中（nosql,mysql,session）推荐redis，比其他三个都快
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