[wicket] ajaxlink 里面定义了一个 img 想要点击图片实现 验证码刷新
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RR521521521
2017-09-28
// 验证码容器
captchaImage = new CaptchaImage("captchaImage"); captchaImage.setOutputMarkupId(true); /*add(captchaImage);*/ lnkChange = new AjaxLink("lnkChange", this); /* lnkChange.addTargetComponent(captchaImage);*/ lnkChange.add(captchaImage); add(lnkChange); } private void initPage() { String verifyCode = VerifyCodeUtils.generateVerifyCode(4); ByteArrayOutputStream imOut = new ByteArrayOutputStream(); try { VerifyCodeUtils.outputImage(200, 80, imOut, verifyCode); } catch (IOException e) { throw new RuntimeException(e); } captchaImage.setImageResource(new CaptchaImageResource(verifyCode, imOut.toByteArray())); setRenderBodyOnly(true); } |
