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When click on link in JSP page I have to go to Servlet and process a Task

 
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Hello All,

When clicked on link in JSP page I have to get a popup window in case there are any errors in servlet process called upon the clicking of the link. If there are no errors the process should redirect to another JSP in the (Process) flow and no popup needed to display.

When there are any errors in the (Servlet) process I need to display an error (Custom JSP) page in popup while the parent JSP should be as is. When I click O.K in the popup page the parent page should be as is and I can continue work with other (Rest of the ) links.

Could someone please post the steps how can I do this process.

Please not: I am only allowed to use JSP, Servlet, JavaScript combination.

Thanks in advance.

Regards,

Swaroop Kunduru.

 
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