消息列表按照时间降序排列如何做分页?
消息列表按照时间降序排列如何做分页?APP调用接口如何防止下拉(翻页)的时候防止出现重复的数据?
请高手指点。
我现在使用redis做的列表
回复内容:
消息列表按照时间降序排列如何做分页?APP调用接口如何防止下拉(翻页)的时候防止出现重复的数据?
请高手指点。
我现在使用redis做的列表
如果数据更新速度比较慢,可以在客户端采用过滤的方式,把下一页中重复的数据过滤掉。如果数据更新速度快(如微博一样的信息流),可以在请求下一页时不传入分页页码,而是直接传入当页最后一个的排序ID(时间或者自增ID等),在Where时直接取之后的数据即可。

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