失去焦点后使用ajax触发JSF验证 [英] Trigger JSF validation using ajax after focus lost

问题描述

当输入组件使用ajax失去焦点而不是等待手动提交表单时，如何触发对输入组件的验证?

How do you trigger validation on an input component when the component loses focus using ajax instead of waiting for the form to be manually submitted?

推荐答案

在UIInput组件中放置一个<f:ajax event="blur">，以重新呈现与该组件相关的<h:message>.

Put a <f:ajax event="blur"> in the UIInput component which re-renders a <h:message> associated with the component in question.

<h:inputText id="foo" value="#{bean.foo}" required="true">
    <f:ajax event="blur" render="fooMessage" />
</h:inputText>
<h:message id="fooMessage" />

另请参见 JSF 2.0教程Eclipse和Tomcat-视图和 查看全文