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https://stackoverflow.com/questions/34240300/how-to-access-the-session-within-dotag-of-simpletagsupport
Dec 12, 2015 · public class MyTag extends SimpleTagSupport { public MyTag() { } public void doTag() throws IOException { //needs to access the session here. how? } } I need to access the session within doTag() to inject a value in the session. I checked all get methods of SimpleTagSupport and all get methods through getJspContext().
https://coderanch.com/t/285273/java/session-removeAttribute-session-invalidate
2. Do I have to invalidate the session; i.e. session.invalidate(); after all the objects in the session are removed? A single call to session.invalidate() will automatically remove all attached references. Of course you won't be able to use that session at all after that call - you will get an IllegalStateException. Bill
https://beginnersbook.com/2013/12/how-to-validate-and-invalidate-session-in-jsp/
display.jsp: It is fetching the attributes (variables) from session and displaying them. errorpage.jsp: It is first calling session.invalidate() in order to invalidate (make the session inactive) the session and then it has a logic to validate the session (checking whether the session is active or not). index.jsp
https://coderanch.com/t/414192/java/Simple-Tag-Request-Object
Simple Tag - Get Request Object . Colin Shine ... I'm trying to come up with a workaround for the lack of any method in the SimpleTagSupport API for getting the current Servlet Request. I read a hint on a website that the EL expression evaluation API can be used, and I'm trying to get it to work using a variation of the following approach. Is ...
https://stackoverflow.com/questions/1118814/simple-tag-not-able-to-intrepret-session-scope-attribute
I'm trying to display an attribute value of ArrayList from JSP set in session scope in servlet as: hs.setAttribute("Attr",arr); //where hs is reference to HttpSession and arr is of type of ArrayList But when I invoked simple tag with the EL expression as optionList attribute value of advice tag in JSP as:
http://www.ntu.edu.sg/home/ehchua/programming/java/JavaServerPages.html
session: A HttpSession object, keeping track of the current client session (from the moment the user accesses the first page, until he/she closes the browser or session timeout). You can use session's attributes to pass information between pages within this session, via methods getAttribute("name") and setAttribute("name", object). For example,
https://docs.oracle.com/javaee/5/api/javax/servlet/jsp/JspContext.html
public abstract class JspContext extends Object. JspContext serves as the base class for the PageContext class and abstracts all information that is not specific to servlets. This allows for Simple Tag Extensions to be used outside of the context of a request/response Servlet.
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