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HttpSession 见解

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1、httpsession机制

httpsession

客户端请求服务器,服务器返回jsessionid保存在客户端,再次请求服务器的时候把jsessionid发送给服务器服务器根据jessionid找到session。

2.httpsession 创建

当前访问不存在httpsession 对象并且开启的session。

3.session 销毁

当前httpsession 对象手动销毁或者httpsession 过期时间到了。(并不是关闭了浏览器httpsession就销毁了)

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