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install it
Add jcaptcha-all.jar, ehcacheimaging.jar (provided in distribution) and imagingehcache.jar (not provided see ehcache site) to your application class path, ie in you WEB-INF/lib folder.
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boolean isResponseCorrect =false;
//remenber that we need an id to validate!
String captchaId = httpServletRequest.getSession().getId();
//retrieve the response
String response = httpServletRequest.getParameter("j_captcha_response");
// Call the Service method
try {
isResponseCorrect = CaptchaServiceSingleton.getInstance().validateResponseForID(captchaId,
response);
} catch (CaptchaServiceException e) {
//should not happen, may be thrown if the id is not valid
}
//do something according to the result!
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Want some
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more
Have a look to the modules provided to see how to integrate it with other frameworks.