< a4j:commandLink>动作未触发 [英] <a4j:commandLink> action not fired

问题描述

我有一个<a4j:commandLink>，我需要在控制器上触发一个动作，

I have an <a4j:commandLink> which I need to fire an action on my controller,

<h:form>
    <a4j:commandLink
        actionListener="#{controller.send(viewBean.id, cc.attrs.guid)}"
        onbegin="$.efc.busy($.messages.sending);"
        oncomplete="$.efc.busy('', true);">
        Send offer to this dealer
    </a4j:commandLink>
</h:form>

当我单击链接时，onbegin javascript已成功触发，但从未调用该操作.这是我从控制器执行的操作:

When I click on the link, the onbegin javascript is successfully fired but the action is never called. Here is my action from my controller:

public void send(String id, String guid) {
    if (id != null && guid != null) {
        ...
    }
}

我的viewBean是视图作用域的，guid来自组件...我在这里缺少什么?

My viewBean is view scoped and the guid comes from the component... What am I missing here?

编辑

如果我将链接更改为按钮，则可以使用...但是我需要一个链接:

If I change the link to a button it works... but I need a link:

<a4j:commandButton
    action="#{controller.send(viewBean.id, cc.attrs.guid)}"
    onbegin="$.efc.busy($.messages.sending);"
    oncomplete="$.efc.busy('', true);"
    value="Send offer to this dealer">
</a4j:commandButton>

推荐答案

根据文档:

"MethodExpression表示将在用户激活此组件时通知的动作侦听器方法.该表达式必须计算为采用ActionEvent参数且返回类型为void的公共方法."

"MethodExpression representing an action listener method that will be notified when this component is activated by the user. The expression must evaluate to a public method that takes an ActionEvent parameter, with a return type of void."

javax.el.MethodExpression(签名必须与void actionListener(javax.faces.event.ActionEvent)匹配)

javax.el.MethodExpression (signature must match void actionListener(javax.faces.event.ActionEvent))

这篇关于< a4j:commandLink>动作未触发的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！