ZK - Open Source Ajax Java Framework

Hi all,

I am using ZK framework and facing some issue while using captcha with zk-jsp.
I am using zul version 5.05 and zuljsp version 1.4.1, and the following code is not working

<z:captcha id="cpa" length="5" />

I haven't set any other specification
the error log is as follows

org.zkoss.zk.ui.impl.UiEngineImpl handleError:1251
SEVERE: >>org.zkoss.zk.ui.UiException: Library property, org.zkoss.zul.captcha.engine.class, required
>> at org.zkoss.zul.Captcha.newCaptchaEngine(Captcha.java:402)
>> at org.zkoss.zul.Captcha.getCaptchaEngine(Captcha.java:378)
>> at org.zkoss.zul.Captcha$1.onEvent(Captcha.java:434)
>> at org.zkoss.zk.ui.impl.EventProcessor.process0(EventProcessor.java:206)
>> at org.zkoss.zk.ui.impl.EventProcessor.process(EventProcessor.java:140)
>>...

Please help me with the issue.
thnx in advance..

hi

the Captcha in zk 5 is ZK PE and ZK EE version, you can download from Free Evaluation Downloads

u mean to say its not available under general - free to use license ??

if yes .. is there any alternative solution for the issue??

Hi

if your project is GPL, you can apply ZK Open Source License , then you can use it.

if your project is not GPL, you can refer to here to use another version of captcha

you also need to build this tag for zuljsp