如果选择的日期早于特定日期，是否可以验证到rich:calendar? [英] Is there how to validate into rich:calendar if the date selected is before a specific date?

问题描述

我有这个组成部分:

<rich:calendar enableManualInput="true" value="#{home.born}" datePattern="dd/MM/yyyy" />

我需要验证所选日期是否等于或大于实际日期. 只能使用rich:calendar来执行此操作吗?还是我必须将其验证到家中?

and i need to validate if the selected date is equal or before actual date at the momment... Is there how to do it only with rich:calendar or i must verify it into home?

问题解决了！我已经使用了Balusc提供的解决方案. 谢谢大家！ :)

Problem solved! i've used the solution provided by Balusc. Thanks everybody! :)

推荐答案

要在服务器端进行验证，可以使用Validator.

To validate it on the server side, you can use a Validator.

<rich:calendar ...>
    <f:validator validatorId="notAfterToday" />
</rich:calendar>

使用

@FacesValidator("notAfterToday")
public class NotAfterTodayValidator implements Validator {

    @Override
    public void validate(FacesContext context, UIComponent component, Object value) throws ValidatorException {
        Date date = (Date) value;
        Date today = new Date();

        if (date.after(today)) {
            String message = "Date may not be later than today.";
            throw new ValidatorException(new FacesMessage(message));
        }
    }

}

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