我有一个XHTML页面，它描述了以下用户复合组件
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:p="http://primefaces.org/ui"
xmlns:ui_component="http://java.sun.com/jsf/composite/ui_component" >
<h:body>
<h:form id="mergeform">
<p:separator/>
<p:panelGrid styleClass="tableEdit" style="width: 100%">
<f:facet name="header">
<p:row>
<p:column colspan="2">
<h:outputLabel style="font-size: 20px;" value="1-ое застрахованное лицо" />
</p:column>
<p:column style="text-align: right; width: 20em;">
<p:commandButton style="font-size: 14px;" value="Общий поиск" immediate="true"
onclick="dialogPersonList.show();document.getElementById('mergeform:personNumber').value = '1';dlg22Search.show();"
action="#{mergeBean.updateListPerson}"
oncomplete="dlg22Search.hide();"
update=":mergeform:enpsearchtable mergeform:checkSearch"/>
</p:column>
</p:row>
</f:facet>
<p:row>
<p:column colspan="3">
<ui_component:personTable id="First" form="mergeform" id_link="Second" bean="#{mergeBean}" val="#{mergeBean.merge}" smoChanger="true" >
<f:validator validatorId="FIOValidator" for="FIOValid" />
</ui_component:personTable>
</p:column>
</p:row>
</p:panelGrid>
<p:panelGrid styleClass="tableEdit" style="width: 100%">
<f:facet name="header">
<p:row>
<p:column colspan="2">
<h:outputLabel style="font-size: 20px;" value="2-ое застрахованное лицо" />
</p:column>
<p:column style="text-align: right; width: 20em;">
<p:commandButton style="font-size: 14px;" value="Общий поиск" immediate="true"
onclick="dialogPersonList.show();document.getElementById('mergeform:personNumber').value = '2';dlg22Search.show();"
action="#{mergeBean.updateListPerson}"
oncomplete="dlg22Search.hide();"
update=":mergeform:enpsearchtable mergeform:checkSearch" />
</p:column>
</p:row>
</f:facet>
<p:row>
<p:column colspan="3">
<ui_component:personTable id="Second" bean="#{mergeBean}" val="#{mergeBean.merge.inputData}" smoChanger="true" >
<f:validator validatorId="FIOValidator" for="FIOValid" />
</ui_component:personTable>
</p:column>
</p:row>
</p:panelGrid>
</h:form>
</h:body>
</html>
组件本身是一个具有多行的panelGrid . 例如，我领导了问题发生的地方 . 说明验证员我也降低了 .
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:cc="http://java.sun.com/jsf/composite"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:p="http://primefaces.org/ui"
xmlns:ui="http://java.sun.com/jsf/facelets">
<cc:interface>
<cc:attribute name="id" />
<cc:attribute name="bean" />
<cc:attribute name="val" />
<cc:attribute name="id_link" />
<cc:attribute name="form" />
<cc:attribute name="readonly" default="false" />
<cc:attribute name="smoChanger" default="false" />
<cc:editableValueHolder name="FIOValid" targets="Secondname#{cc.attrs.id}" />
<cc:editableValueHolder name="DocValid" targets="DocNum#{cc.attrs.id}" />
<cc:editableValueHolder name="PolValid" targets="PolNum#{cc.attrs.id}" />
<cc:editableValueHolder name="PlaceBirthValid" targets="PlaceBirth#{cc.attrs.id}" />
<cc:editableValueHolder name="EnpValid" targets="Enp#{cc.attrs.id}" />
<cc:editableValueHolder name="OgrnValid" targets="Ogrn#{cc.attrs.id}" />
</cc:interface>
<cc:implementation>
<p:panelGrid id="#{cc.attrs.id}Person" style="font-size: 14px; width: 100%" styleClass="tableEdit" >
<p:row>
<p:column style="width: 180px">
<h:outputLabel for="Secondname#{cc.attrs.id}" value="Фамилия: " />
</p:column>
<p:column>
<p:inputText id="Secondname#{cc.attrs.id}" value="#{cc.attrs.val.secondname}"
readonly="#{cc.attrs.readonly}" >
<p:ajax event="blur" process="@this" update="Secondname#{cc.attrs.id} ErrorsSecondname#{cc.attrs.id}" />
<p:ajax event="blur" listener="#{cc.attrs.bean.changeField}"
update="Secondname#{cc.attrs.id} ErrorsSecondname#{cc.attrs.id}
:#{cc.attrs.form}:#{cc.attrs.id_link}:Secondname#{cc.attrs.id_link}
:#{cc.attrs.form}:#{cc.attrs.id_link}:ErrorsSecondname#{cc.attrs.id_link}"
disabled="#{empty cc.attrs.id_link}" />
</p:inputText>
</p:column>
<p:column>
<h:message showSummary="false" showDetail="true"
style="color: red; font-size: 15px;
text-decoration: underline;"
id="ErrorsSecondname#{cc.attrs.id}"
for="Secondname#{cc.attrs.id}"/>
</p:column>
</p:row>
</p:panelGrid>
</cc:implementation>
</html>
在bean MergeBean中，我描述了监听器，这只是一个错误发生 .
@ManagedBean
@SessionScoped
public class MergeBean implements Serializable {
private Person selectedPerson;
public MergeBean() {
}
public Message getMerge() {
if (this.merge == null) {
this.merge = new Message();
this.merge.setInputData(new Message());
}
return this.merge;
}
public void setMerge(Message merge) {
this.merge = merge;
}
public void changeField(AjaxBehaviorEvent event) {
String id = event.getComponent().getId();
String valStr = ((HtmlInputText) event.getComponent()).getValue().toString();
if (valStr != null && !valStr.isEmpty()) {
String idChange = id.substring(0, id.length() - 5);
UIInput input = (UIInput) UtilsUIXhtml.findComponent(idChange + "Second");
//TODO
Object objTemp = input.getSubmittedValue();
//String tempStr = objTemp.toString();
String cngStr = input.getValue().toString();
if (cngStr == null || cngStr.isEmpty()) {
input.setValue(valStr);
}
}
}
}
我正在尝试绑定到第一个自定义组件中的第一个文本输入和方法，以在第二个自定义组件中查找关联的文本输入，并检查其值为空和null . 但是当我在pery输入中插入一行时，第二个输入到调试器input.getValue（） . ToString（）等于用户输入的值，而不是它确实存在的事实 . 为什么会发生这种情况？如何才能在听众中获得真正的 Value ？
PS所以我正在寻找DOM树中的组件：
public static UIComponent findComponent(final String id) {
FacesContext context = FacesContext.getCurrentInstance();
UIViewRoot root = context.getViewRoot();
final UIComponent[] found = new UIComponent[1];
root.visitTree(new FullVisitContext(context), new VisitCallback() {
@Override
public VisitResult visit(VisitContext context, UIComponent component) {
if (component.getId().equals(id)) {
found[0] = component;
return VisitResult.COMPLETE;
}
return VisitResult.ACCEPT;
}
});
return found[0];
}