Struts2 提供令牌拦截器以确保每个令牌只处理一个请求,但是,我不明白它是如何工作的,如果用户发送一个请求两次会发生什么?用户是否获得无效令牌或获得第一个请求的响应?这个拦截器背后的逻辑是什么?
Struts2 provide Token Interceptor for ensures that only one request per token is processed, But, I don't understand how it works, if a user send the one request twice what happens? Does the user get an invalid token or get response of the first request? What is a logic behind this interceptor?
token
拦截器在发现无效令牌时返回结果invalid.token
.逻辑很简单:它使用会话保存每个请求的有效令牌,并在拦截时通过比较发送的和来自会话的另一个来检查它.
The token
interceptor returns the result invalid.token
when an invalid token is found. The logic is simple: it uses a session to save a valid token per request and when intercept it checks it by comparing one that sent and other that is from session.
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