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redirecting page

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hi all.

My question has two parts. First part

I have a form in page1.jsp. the action for that form submit is in page2.jsp

In page2.jsp, validation for the username and password is done. If validation is true, then I want to just come back to the page1.jsp after processing the request.(reload the first page again)

so in page2.jsp, how can i redirect the display page to the page1.jsp

what code shal I use to check , if validation is correct or not ? What object will that be ?

Second part -

page1.jsp contains two forms, if validation is correct then a code containing will be executed otherwise an error page will display asking to enter username and password again. I believe this is not the correct way of doing it, I should redirect to the separate page. Please guide me in that , how to do that.

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To validate a user you can use FORM Based Authentication method just try it out instead of oscillating between JSP's.
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