这是一个pretty的广泛的问题，但我会用这样的方法：

This is a pretty broad question, but I would use an approach like this:

Android客户端＆LT; - ＆GT; （REST风格）的Web服务（例如PHP）LT; - ＆GT;数据库（如MySQL的）

最后两项，当然，驻留在此体系结构的服务器端。

The last two items, of course, reside server side in this architecture.

流量将基本由用户作出评价或评论，一个HTTP请求发送到Web服务，Web服务执行，增加了评级和评论到数据库中，这导致的结果，一个SQL语句HTTP响应，您可以更新您的Andr​​oid客户端。

The flow would essentially consist of the user makes a rating or comment, an HTTP request is made to your web service, the web service executes a SQL statement that adds the rating or comment to the database, which leads to a result and an HTTP response from which you can update your Android client.

我首先建议寻找到一般的REST风格的Web服务和Web服务，如果你不熟悉他们。

I would first suggest looking into RESTful web services and web services in general if you're unfamiliar with them.