android - APP开发 与后端交互Cookie的问题

Question

应用统一做接口，android端，ios端或者微信公众号端全部通过API接口和WEB服务器做数据交互，如登录，用户注册，登陆后的一些操作等。（原生应用，不是用WebView封装的H5 url）

我是菜鸟，有个问题有点迷糊。求教各位网友，谢谢！

发一个请求给服务器，传递用户名和密码，验证成功后返回用户的UID，客户端（android为例）直接使用 SharedPrefence 保存这个UID就可以了。

为什么我在网上看到很多人说再次HTPP请求时把cookie附加到header里，这样就不用重复登录了？（cookie里保存什么东西？）

既然客户端通过自定义API接口和服务器交互，GET或者POST时传递令牌验证参数不就可以了啊，还要cookie作甚啊？？

Answer 1

How can we get cookies without a browser? Cookie and session explanation, pure native app (no WebView) I have never heard of the concept of cookies, maybe I am ignorant

Answer 2

The Api key tells the server that the caller server is legal, and the cookie tells the client that the user is legal

Answer 3

Native applications do not require cookies and directly determine the login status based on the user number

Answer 4

When making web applications, cookies are generally used to pass session id. For example, PHPSESSID. In fact, it is equivalent to the function of a token.
The app passes cookies, probably to be consistent with the web page. In this way, the server can handle both Web and App requests at the same time

Answer 5

You can think of this cookie as a key. Based on this key, you can get some information stored in the user's login state, such as uid, etc.

Answer 6

The key now is how to bring cookies into httpheader?