官网：http://code.google.com/p/patchca/
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/** * 验证码 * * @param width 图片宽度 * @param height 图片高度 * @param number 验证码数量 */ @RequestMapping(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.setFontFactory(ff); 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(); } |
以上所述是小编给大家介绍的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，小编会及时回复大家的！
原文链接：http://blog.csdn.net/zsg88/article/details/73699271
