Question
How can multiple submits  due to refresh button clicks be prevented?
Answers
Using a Post/Redirect/Get or a PRG pattern, this problem can be solved.
1. A form filled by the user is submitted to the server using POST or GET method. The state in the database and business model are updated.
2. A redirect response is used to reply by the servlet for a view page.
3. A view is loaded by the browser using the GET command and no user data is sent. This is safe from multiple submits as it is a separate JSP page.
 
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