validate and expire the link using gwt - java -

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my requirement sent mail concerned users when record created. mail contains link our system lets user interacting system without login. link expires after time. mailing done using javax.mail.

how can expire link?

i generate key/id add link , store database. filters (web.xml) can check if url (id) still valid , pass on desired page.

if provide more details, can give more detailed answer.


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