?? noisecontroller.groovy
字號:
import java.awt.Colorimport nl.captcha.Captchaimport nl.captcha.noise.*import nl.captcha.backgrounds.*import nl.captcha.servlet.CaptchaServletUtilclass NoiseController { def final WIDTH = 200 def final HEIGHT = 50 def simple = { def captcha = new Captcha.Builder(WIDTH, HEIGHT) .addNoise() .build() CaptchaServletUtil.writeImage(response, captcha.image) } def curved = { def captcha = new Captcha.Builder(WIDTH, HEIGHT) .addNoise(new CurvedLineNoiseProducer()) .build() CaptchaServletUtil.writeImage(response, captcha.image) } def curved_bigandblue = { def captcha = new Captcha.Builder(WIDTH, HEIGHT) .addNoise(new CurvedLineNoiseProducer(Color.BLUE, 8)) .build() CaptchaServletUtil.writeImage(response, captcha.image) } def straightline = { def captcha = new Captcha.Builder(WIDTH, HEIGHT) .addNoise(new StraightLineNoiseProducer()) .build() CaptchaServletUtil.writeImage(response, captcha.image) } def multilines = { def captcha = new Captcha.Builder(WIDTH, HEIGHT) .addNoise(new StraightLineNoiseProducer(Color.RED, 6)) .addNoise(new StraightLineNoiseProducer(Color.BLUE, 4)) .addNoise(new StraightLineNoiseProducer(Color.WHITE, 2)) .addBackground() .build() CaptchaServletUtil.writeImage(response, captcha.image) }}
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