Validation error messages are shown repeatedly in struts2 -

i m new struts2. doing client side validation form. error messages validations wrote in properties file repeated each time submit.

e.g.

first submit

username required 

second submit

username required username required 

please tell me how clear previous error messages?

you should give example code. there document struts2 client side validation , ajax validation there writes:

clearvalidationerrors(formnode) : removes validation errors form 

so can try it.