如何通过一个参数值A4J:jsFunction [英] How to pass a parameter value to a4j:jsFunction
问题描述
在我的网页我有在打开一个弹出的项目列表的按钮。当我在列表中选择1个项目,我要项目的ID传递给我的第一页的backingbean。可能吗?它试图用 A4J做到这一点:jsFunction
和 A4J:参数
,但一点儿也不工作。
On my page I have a button that opens a list of items in a popup. When I select 1 item in the list, I want to pass the id of the item to the backingbean of my first page. Is it possible? It tried to do it with a4j:jsFunction
and a4j:param
but it does'nt work.
这是我的code:
第1页:
<a4j:jsFunction name="renderGuarantor" render="guarantor" actionListener="#{prospectDetail.setNewGuarantor}">
<a4j:param name="param1" assignTo="#{prospectDetail.newGuarantorId}" />
</a4j:jsFunction>
popuppage:
<h:outputLink value="" onclick="window.opener.renderGuarantor(#{applicant.deposit_id});window.close();">
<h:graphicImage style="padding:0 1px; border:0" value="${path.staticRootUrl}images/confirm.gif" alt="${msg.applicantslist_select}" title="${msg.applicantslist_select}"/>
</h:outputLink>
这是支持bean code为第一页
And this is the backing bean code for the first page
private Integer newGuarantorId;
public void setNewGuarantor() {
guarantor = newGuarantorId;
}
public Integer getNewGuarantorId() {
return newGuarantorId;
}
public void setNewGuarantorId(Integer newGuarantorId) {
this.newGuarantorId = newGuarantorId;
}
在弹出的选择当我backingbean调用该方法,但 newGuarantorId
为空和 setNewGuarantorId
从不调用。
有没有解决我的问题?
推荐答案
嗯..那奇怪的,没有什么看起来wrong..Not解答您的问题,但尝试这种解决办法 - 而不是它们的值赋给guarantorId,保持参数为&LT; A4J:参数名称=参数1/&GT;
和的ActionListener
方法检索此参数1从要求为字符串参数1 = FacesContext.getCurrentInstance().getExternalContext().getRequestParameterMap().get("param1");$c$c>.
然后转换这个参数为int,并进一步利用它。这应该工作
Hmm.. thats strange, nothing looks wrong..Not an answer to your question but try this workaround - instead of assigning the value to guarantorId, keep the param as <a4j:param name="param1"/>
and in the actionListener
method retrieve this param1 from the request as String param1 = FacesContext.getCurrentInstance().getExternalContext().getRequestParameterMap().get("param1");
.
And then convert this param to int and utilize it further. That should work
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