📄 attributelistener.java
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package cn.com.tarena.web.servlet.day5;
import javax.servlet.http.HttpSessionAttributeListener;
import javax.servlet.http.HttpSessionBindingEvent;
public class AttributeListener implements HttpSessionAttributeListener{
public void attributeAdded(HttpSessionBindingEvent event) {
event.getSession().getServletContext().log("AttributeListener.attributeAdded");
event.getSession().getServletContext().log(event.getName() + " = " + event.getValue());
}
public void attributeRemoved(HttpSessionBindingEvent event) {
event.getSession().getServletContext().log("AttributeListener.attributeRemoved");
event.getSession().getServletContext().log(event.getName() + " = " + event.getValue());
}
public void attributeReplaced(HttpSessionBindingEvent event) {
event.getSession().getServletContext().log("AttributeListener.attributeReplaced");
event.getSession().getServletContext().log(event.getName() + " = " + event.getValue());
}
}
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