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面试官：给我说一下你项目中的单点登录是如何实现的？
source link: https://juejin.im/post/5ca60126f265da30cf176acf
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一、单系统登录机制1、http无状态协议web应用采用browser/server架构，http作为通信协议。http是无状态协议，浏览器的每一次请求，服务器会独立处理，不与之前或之后的请求产生关联，这个过程用下图说明，三次请求/响应对之间没有任何联系。但这也
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