private Producer createCaptchaProducer(
int width, int height, int length, String possibleSymbols) {
Properties props = new Properties();
props.setProperty("kaptcha.textproducer.char.string", possibleSymbols);
props.setProperty("kaptcha.textproducer.char.length", String.valueOf(length));
props.setProperty("kaptcha.image.width", String.valueOf(width));
props.setProperty("kaptcha.image.height", String.valueOf(height));
Config conf = new Config(props);
DefaultKaptcha captcha = new DefaultKaptcha();
captcha.setConfig(conf);
return captcha;
}
@Override
public void afterPropertiesSet() throws Exception {
producer = new DefaultKaptcha();
producer.setConfig(new Config(new Properties()));
}