Ok I am understand bro . Thanks @arunpatidar .

Thanks @arunpatidar bro and all others to. Without using js it's possible bro ? 

Hi @All i had created an component with drop down the data source i get from servelet like : <datasource  jcr: primaryType:"nt: unstructured" Sling: resourceType="/myservlet/path" /> It's possible to get parameter value from this datasource to my java model? And what i am trying to do is dynamically...

Crete an node from Excel data where the property are also set from excel file 

Yes mam, I am new to aem. Now only learning new topics mam. Thanks mam for your suggestion 

Thanks bro @SantoshSai 

How to get values form param and save form data as node in crx using servlet. I newbie to aem  

Yes @HeenaMadan thanks

When I am using mvn clean install -PautoInstallPacakage to deploy my project In aem i am getting an blank page. And when I upload the bundle in crdx. And installing and uninstall that aem is not crashing. And I can see only some pages not full