javascript - Calling java code from java script in JSP -


i newbie in ui i.e. front end. using javascript , jsp. need perform below task.

i have textarea in jsp page gets populated text file read using java. now, want empty text area , text file on clicking button. emptying file not issue don't how transfer call jsp file servlet on clicking button.

please help.

there 2 ways this:

the classical way form submission:

http://www.tutorialspoint.com/jsp/jsp_form_processing.htm

e.g. embedded form in jsp page send data server when submitted.

the second way via ajax

https://en.wikipedia.org/wiki/ajax_(programming)

i suggest google basics of form submission (which not jsp specific) or doing ajax requests javascript (with library, example jquery)


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