RJ24 RJ24 - 2 years ago 98
Javascript Question

handling special characters in parameters with XMLHttpRequest

Trying to send password using

from frontend(javascript) with POST and other parameters with names like

"&password=" document.getElementById('password').value

I'm using HttpServletRequest.getparameter to get the parameter string of password like
string pswd = request.getparameter("password");

The code works fine with all passwords that have special characters except passwords like these qwe100%qwe, qwe198%qwe
When I pass those passwords, if I were to read username or other parameters sent along with password also results in exception[illegalArgumentException]
any help is appreciated..

Answer Source

You need to use encodeURIComponent on the JavaScript side before passing it to the back end.

That is:

var pass = encodeURIComponent(document.getElementById('password').value);

Note that on the Java side, you should then do a:



As @BalusC points out I'm wrong on the Java side - you have already done what is needed on the JavaScript side so you don't need the Java part.

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