我正在制作具有commandButton的复合组件。但不起作用。
用法:
<wk:commandButton value="Non-Ajax actionListener" actionListener="#{ioBean.saveListener}" /> 组件代码: commandButton.xhtml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:c="http://java.sun.com/jsp/jstl/core"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:p="http://primefaces.org/ui"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:cc="http://java.sun.com/jsf/composite">
<cc:interface>
<cc:attribute name="value" />
<cc:attribute name="action" method-signature="void action(javax.faces.event.ActionEvent)" default="null"/>
<cc:attribute name="actionListener" method-signature="void actionListener(javax.faces.event.ActionEvent)" default="null"/>
<cc:attribute name="styleClass" default="button" />
</cc:interface>
<cc:implementation>
<p:commandButton
value="#{cc.attrs.value}"
action="#{cc.attrs.action}"
actionListener="#{cc.attrs.actionListener}"
styleClass="#{styleClass}">
<cc:insertChildren />
</p:commandButton>
</cc:implementation>
</html>这是日志:
0000006c FaceletViewDe E Inner component action not found when retargetMethodExpressions
0000006c FaceletViewDe E Inner component actionListener not found when retargetMethodExpressions
0000006c srt W com.ibm.ws.webcontainer.srt.SRTServletResponse setIntHeader SRVE8094W: Ostrzeżenie: nie można ustawić nagłówka. Odpowiedź została już zatwierdzona.我认为问题在于操作和actionListener的默认值。但是根据PrimeFaces文档,操作和actionListener的默认值为null。一种选择是创建四个不同的变量,其中操作和actionListener为null或定义为null,但它似乎不是很好的解决方案。
发布于 2013-10-30 11:04:30
使用<cc:attribute targets>而不是显式指定可能的null操作(侦听器)。
<cc:interface>
<cc:attribute name="value" />
<cc:attribute name="action" targets="buttonId" />
<cc:attribute name="actionListener" targets="buttonId" />
</cc:interface>
<cc:implementation>
<p:commandButton id="buttonId" value="#{cc.attrs.value}" />
</cc:implementation>https://stackoverflow.com/questions/19364933
复制相似问题