Java中使用patchca生成超炫的验证码

Java中使用patchca生成超炫的验证码

官网：http://code.google.com/p/patchca/

/**

* 验证码

*

* @param width 图片宽度

* @param height 图片高度

* @param number 验证码数量

*/

@RequestMaqIRbHjpping(value = {"/captcha"})

public void captcha(HttpServletRequest request,

HttpServletResponse response, @RequestParam("w") int width, @RequestParam("h") int height, @RequestParam("n") int number) throws IOException {

ConfigurableCaptchaService cs = new ConfigurableCaptchaService();

cs.setColorFactory(new SingleColorFactory(new Color(25, 60, 170)));

cs.setFilterFactory(new CurvesRippleFilterFactory(cs.getColorFactory()));

RandomFontFactory ff = new RandomFontFactory();

ff.setMinSize(30);

ff.setMaxSize(30);

RandomWordFactory rwf = new RandomWordFactory();

rwf.setMinLength(number);

rwf.setMaxLength(number);

cs.setWordFactory(rwf);

cs.setFontFahttp://ctory(ff);

http:// cs.setHeight(height);

cs.setWidth(width);

response.setContentType("image/png");

response.setHeader("Cache-Control", "no-cache, no-store");

response.setHeader("Pragma", "no-cache");

long time = System.currentTimeMillis();

response.setDateHeader("Last-Modified", time);

response.setDateHeader("Date", time);

response.setDateHeader("Expires", time);

ServletOutputStream stream = response.getOutputStream();

String validate_code = EncoderHelper.getChallangeAndWriteImage(cs,

"png", stream);

Subject subject = SecurityUtils.getSubject();

subject.getSession().setAttribute(formAuthenticationFilter.getCaptchaParam(), validate_code);

stream.flush();

stream.close();

}

以上所述是给大家介绍的java中使用patchca生成超炫的验证码 ，希望对大家有所帮助，如果大家有任何疑问欢迎给我留言，会及时回复大家的！

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