Which interface must a class implement so that instances of the class are notified after any object is addedto a session？（）
- A、javax.servlet.http.HttpSessionListener
- B、javax.servlet.http.HttpSessionValueListener
- C、javax.servlet.http.HttpSessionBindingListener
- D、javax.servlet.http.HttpSessionAttributeListener
正确答案:D
答案解析:有
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