使用patchca生成验证码

public class ValidationCode {

private ColorFactory colorFactory = null;
private RandomFontFactory fontFactory = null;
private RandomWordFactory wordFactory = null;
private TextRenderer textRenderer = null;

public ConfigurableCaptchaService getConfigurableCaptchaService(){
ConfigurableCaptchaService configurableCaptchaService  = new ConfigurableCaptchaService();
// 颜色创建工厂,使用一定范围内的随机色
colorFactory = new RandomColorFactory();
configurableCaptchaService.setColorFactory(colorFactory);
// 随机字体生成器
fontFactory = new RandomFontFactory();
fontFactory.setMaxSize(32);
fontFactory.setMinSize(28);
configurableCaptchaService.setFontFactory(fontFactory);
// 随机字符生成器,去除掉容易混淆的字母和数字,如o和0等
wordFactory = new RandomWordFactory();
wordFactory.setCharacters("abcdefghkmnpqstwxyz23456789");
wordFactory.setMaxLength(5);
wordFactory.setMinLength(4);
configurableCaptchaService.setWordFactory(wordFactory);
// 自定义验证码图片背景
MyCustomBackgroundFactory backgroundFactory = new MyCustomBackgroundFactory();
configurableCaptchaService.setBackgroundFactory(backgroundFactory);
// 图片滤镜设置
ConfigurableFilterFactory filterFactory = new ConfigurableFilterFactory();
List<BufferedImageOp> filters = new ArrayList<BufferedImageOp>();
WobbleImageOp wobbleImageOp = new WobbleImageOp();
wobbleImageOp.setEdgeMode(AbstractImageOp.EDGE_MIRROR);
wobbleImageOp.setxAmplitude(2.0);
wobbleImageOp.setyAmplitude(1.0);
filters.add(wobbleImageOp);
filterFactory.setFilters(filters);
configurableCaptchaService.setFilterFactory(filterFactory);
// 文字渲染器设置
textRenderer = new BestFitTextRenderer();
textRenderer.setBottomMargin(3);
textRenderer.setTopMargin(3);
configurableCaptchaService.setTextRenderer(textRenderer);
// 验证码图片的大小
configurableCaptchaService.setWidth(82);
configurableCaptchaService.setHeight(32);
return configurableCaptchaService;
}
/**
* 自定义验证码图片背景,主要画一些噪点和干扰线
*/
private class MyCustomBackgroundFactory implements BackgroundFactory {
private Random random = new Random();
public void fillBackground(BufferedImage image) {
Graphics graphics = image.getGraphics();
// 验证码图片的宽高
int imgWidth = image.getWidth();
int imgHeight = image.getHeight();
// 填充为白色背景
graphics.setColor(Color.WHITE);
graphics.fillRect(0, 0, imgWidth, imgHeight);
// 画100个噪点(颜色及位置随机)
for(int i = 0; i < 100; i++) {
// 随机颜色
int rInt = random.nextInt(255);
int gInt = random.nextInt(255);
int bInt = random.nextInt(255);
graphics.setColor(new Color(rInt, gInt, bInt));
// 随机位置
int xInt = random.nextInt(imgWidth - 3);
int yInt = random.nextInt(imgHeight - 2);
// 随机旋转角度
int sAngleInt = random.nextInt(360);
int eAngleInt = random.nextInt(360);
// 随机大小
int wInt = random.nextInt(6);
int hInt = random.nextInt(6);
graphics.fillArc(xInt, yInt, wInt, hInt, sAngleInt, eAngleInt);
// 画5条干扰线
if (i % 20 == 0) {
int xInt2 = random.nextInt(imgWidth);
int yInt2 = random.nextInt(imgHeight);
graphics.drawLine(xInt, yInt, xInt2, yInt2);
}
}
}
}

public static void main(String[] args) {
ValidationCode validationCode = new ValidationCode();

// 得到验证码对象,有验证码图片和验证码字符串
Captcha captcha = validationCode.getConfigurableCaptchaService().getCaptcha();
// 取得验证码字符串
String validationCodeTest = captcha.getChallenge();
// 取得验证码图片并输出
BufferedImage bufferedImage = captcha.getImage();
System.out.println("验证码字符串："+validationCodeTest);
String code = "code.jpg";
try {
ImageIO.write(bufferedImage, "jpg", new File("D:/img/"+code));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

}