我有一段类似于“数据表 - 即时行选择”的代码。但是，当我将其分解为复合组件时，不会显示选择值。我怀疑它是由PrimeFaces代码引起的。
以下代码不起作用：
viewApplicationConfig.xhtml
<ui:composition xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:p="http://primefaces.prime.com.tr/ui"
xmlns:dti="http://java.sun.com/jsf/composite/dti"
template="../../templates/baseTemplate.xhtml">
<f:metadata>
<f:viewParam name="contextApplicationId" value="#{viewApplicationConfig.contextApplicationId}"/>
</f:metadata>
<ui:define name="title">#{viewApplicationConfig.pageTitle}</ui:define>
<ui:define name="content">
<p:panel id="panel" header="#{viewApplicationConfig.pageTitle}" style="width: 1280px">
<ui:remove>
------ ApplicationFilterCriteriaPanel ----------
</ui:remove>
<dti:dtiPanel value="#{viewApplicationConfig.getPanelBean('ApplicationFilterCriteriaPanel')}"
toggleable="true" toggleSpeed="500">
<dti:dtiLayer id="#{viewApplicationConfig.getLayer('ApplicationFilterCriteriaLayer').getLayerId()}">
<div style="width: 600px;">
<div style="float: left">
<h:dataTable
value="#{viewApplicationConfig.getLayerFields('ApplicationFilterCriteriaLayer')}"
var="field">
<h:column>
<dti:dtiField field="#{field}" record="#{record}"/>
</h:column>
</h:dataTable>
</div>
</div>
</dti:dtiLayer>
</dti:dtiPanel>
<ui:remove>
------ End ApplicationFilterCriteriaPanel ----------
</ui:remove>
<ui:remove>
------ ApplicationGridPanel ----------
</ui:remove>
<dti:dtiPanel value="#{viewApplicationConfig.getPanelBean('ApplicationGridPanel')}"
toggleable="true" toggleSpeed="500">
<dti:dtiLayer id="#{viewApplicationConfig.getLayer('ApplicationGridLayer_GH').getLayerId()}">
<div style="width: 600px;">
<div style="float: left">
<h:dataTable value="#{viewApplicationConfig.getLayerFields('ApplicationGridLayer_GH')}"
var="field">
<h:column>
<dti:dtiField field="#{field}" record="#{record}"/>
</h:column>
</h:dataTable>
</div>
</div>
</dti:dtiLayer>
<ui:remove>
------ DTI GRID ----------
</ui:remove>
<dti:dtiGrid columns="#{viewApplicationConfig.getLayerFields('ApplicationGridLayer_GH')}"
dataBean="#{viewApplicationConfig}"/>
<ui:remove>
------ END DTI GRID ----------
</ui:remove>
<ui:remove>
------ END ApplicationGridPanel ----------
</ui:remove>
</dti:dtiPanel>
<ui:remove>
------ Debugging Code --------------
<h1 class="title ui-widget-header ui-corner-all"
style="width: 1200px; margin-left: 20px;"><h:outputLabel
value="Welcome #{loginBean.name}"></h:outputLabel></h1>
<h:outputText value="Theme: #{guestPreferences.theme}"/><br/>
<h:outputText
value="Selected contextApplicationId -- getContextApplicationId(): #{viewApplicationConfig.contextApplicationId}"/>
<br/>
<h:outputText value="Grid Header -- getXmlHeader(): #{viewApplicationConfig.xmlHeader}"/> <br/>
<h:outputText
value="Grid Header Fields -- getXmlHeaderFields(): #{viewApplicationConfig.xmlHeaderFields}"/>
<br/>
<h:outputText
value="Grid Header Layer Fields -- getXmlHeaderLayerFields(): #{viewApplicationConfig.xmlHeaderLayerFields}"/>
<br/>
<h:outputText value="Page Fields -- getPageFields(): #{viewApplicationConfig.pageFields}"/> <br/>
<h:outputText value="Layers getLayers(): #{viewApplicationConfig.layers}"/> <br/>
<h:outputText
value="Layers getLayer(ApplicationGridLayer_GH): #{viewApplicationConfig.getLayer('ApplicationGridLayer_GH')}"/>
<br/>
<h:outputText
value="Layers getLayerFields(ApplicationGridLayer_GH): #{viewApplicationConfig.getLayerFields('ApplicationGridLayer_GH')}"/>
<br/>
<div class="entry">
<h:form>
<h:commandLink actionListener="#{viewApplicationConfig.navigateToPageConfig}"
value="Click on contextApplicationId"/>
<p:dataTable var="record" value="#{viewApplicationConfig.applications}"
paginator="true" rows="5" id="entityTable"
style="width:1220px">
<f:facet name="header">
Applications -- Size: #{viewApplicationConfig.applications.size()}
</f:facet>
<p:column headerText="ClientId" style="width:100px">
<h:outputText value="#{record.fieldNameList}"/>
</p:column>
</p:dataTable>
</h:form>
</div>
------ End Debugging Code ----------
</ui:remove>
</p:panel>
</ui:define>
</ui:composition>
dtiPanel.xhtml
<!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:f="http://java.sun.com/jsf/core"
xmlns:p="http://primefaces.prime.com.tr/ui"
xmlns:composite="http://java.sun.com/jsf/composite">
<composite:interface>
<composite:attribute name="value" required="true"/>
<composite:attribute name="toggleable" required="true"/>
<composite:attribute name="closable"/>
<composite:attribute name="toggleSpeed"/>
<composite:attribute name="collapsed"/>
</composite:interface>
<composite:implementation>
<p:panel id="#{cc.attrs.value.id}" header="#{cc.attrs.value.title}"
toggleable="#{cc.attrs.toggleable}" closable="#{cc.attrs.closable}"
toggleSpeed="#{cc.attrs.toggleSpeed}"
collapsed="#{cc.attrs.collapsed}">
<composite:insertChildren/>
</p:panel>
</composite:implementation>
</html>
dtiLayer.xhtml
<!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:f="http://java.sun.com/jsf/core"
xmlns:p="http://primefaces.prime.com.tr/ui"
xmlns:composite="http://java.sun.com/jsf/composite">
<composite:interface>
<composite:attribute name="id" required="true"/>
<composite:attribute name="hidden"/>
</composite:interface>
<composite:implementation>
<p:outputPanel id="#{cc.attrs.id}" rendered="#{!cc.attrs.hidden}">
<composite:insertChildren/>
</p:outputPanel>
</composite:implementation>
</html>
dtiGrid.xhtml
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:p="http://primefaces.prime.com.tr/ui"
xmlns:composite="http://java.sun.com/jsf/composite"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:c="http://java.sun.com/jsp/jstl/core"
xmlns:fn="http://java.sun.com/jsp/jstl/functions"
xmlns:dti="http://java.sun.com/jsf/composite/dti">
<composite:interface>
<composite:attribute name="columns" required="true"/>
<composite:attribute name="dataBean" required="true"/>
</composite:interface>
<composite:implementation>
<div class="entry">
<h:form id="gridForm">
<p:ajaxStatus style="width:32px;height:32px;">
<f:facet name="start">
<h:graphicImage value="/core/images/design/ajaxloading.gif"/>
</f:facet>
<f:facet name="complete">
<h:outputText value=""/>
</f:facet>
</p:ajaxStatus>
<f:facet name="header">
<p:messages/>
</f:facet>
<p:growl id="growl" showDetail="true"/>
<h:panelGrid columns="2">
<p:panel header="Export All Data">
<h:commandLink>
<p:graphicImage value="/core/images/primefaces/excel.png"/>
<p:dataExporter type="xls" target="entityTable"
fileName="entityDialog"/>
</h:commandLink>
<h:commandLink>
<p:graphicImage value="/core/images/primefaces/pdf.png"/>
<p:dataExporter type="pdf" target="entityTable"
fileName="entityDialog"/>
</h:commandLink>
<h:commandLink>
<p:graphicImage value="/core/images/primefaces/csv.png"/>
<p:dataExporter type="csv" target="entityTable"
fileName="entityDialog"/>
</h:commandLink>
<h:commandLink>
<p:graphicImage value="/core/images/primefaces/xml.png"/>
<p:dataExporter type="xml" target="entityTable"
fileName="entityDialog"/>
</h:commandLink>
</p:panel>
<p:panel header="Export Page Data">
<h:commandLink>
<p:graphicImage value="/core/images/primefaces/excel.png"/>
<p:dataExporter type="xls" target="entityTable"
fileName="entityDialog" pageOnly="true"/>
</h:commandLink>
<h:commandLink>
<p:graphicImage value="/core/images/primefaces/pdf.png"/>
<p:dataExporter type="pdf" target="entityTable"
fileName="entityDialog" pageOnly="true"/>
</h:commandLink>
<h:commandLink>
<p:graphicImage value="/core/images/primefaces/csv.png"/>
<p:dataExporter type="csv" target="entityTable"
fileName="entityDialog" pageOnly="true"/>
</h:commandLink>
<h:commandLink>
<p:graphicImage value="/core/images/primefaces/xml.png"/>
<p:dataExporter type="xml" target="entityTable"
fileName="entityDialog" pageOnly="true"/>
</h:commandLink>
</p:panel>
</h:panelGrid>
<p:dataTable var="record" value="#{cc.attrs.dataBean.applications}"
paginator="true" rows="5" id="entityTable"
selection="#{cc.attrs.dataBean.selectedRecord}" selectionMode="single"
rowSelectListener="#{cc.attrs.dataBean.onRowSelect}"
onRowSelectUpdate="rowForm:display growl"
rowUnselectListener="#{cc.attrs.dataBean.onRowUnselect}"
onRowUnselectUpdate="growl"
onRowSelectComplete="rowDialog.show()" update="rowForm:display"
dblClickSelect="true"
style="width:1220px">
<f:facet name="header">
Applications -- Size: #{cc.attrs.dataBean.applications.size()}
</f:facet>
<c:forEach var="column" items="#{cc.attrs.columns}">
<c:choose>
<c:when test="#{fn:toUpperCase(column.fieldId)=='SELECT_IND_GH'}">
<p:column selectionMode="multiple" style="width:20px"/>
</c:when>
<c:otherwise>
<p:column headerText="#{column.label}" filterBy="#{record.getFieldValue(fn:substringBefore(column.fieldId, '_GH'))}"
sortBy="#{record.getFieldValue(fn:substringBefore(column.fieldId, '_GH'))}" style="width:100px">
<c:choose>
<c:when test="#{not empty column.href}">
<h:link outcome="viewApplicationConfig"
value="#{record.getFieldValue(fn:substringBefore(column.fieldId, '_GH'))}">
<f:param name="pageUrl" value="#{column.href}"/>
</h:link>
</c:when>
<c:otherwise>
<h:outputText
value="#{record.getFieldValue(fn:substringBefore(column.fieldId, '_GH'))}"/>
<ui:remove>
<br/>Field Id: #{column.fieldId}
<br/>Data Type: #{column.datatype}
<br/>Display Type: #{column.displayType}
<br/>Read Only: #{column.isReadOnly}
<br/>Visible: #{column.isVisible}
<br/>HREF: #{column.href}
</ui:remove>
</c:otherwise>
</c:choose>
</p:column>
</c:otherwise>
</c:choose>
</c:forEach>
</p:dataTable>
</h:form>
<p:dialog header="Edit Row" widgetVar="rowDialog"
resizable="false" width="700">
<h:form id="rowForm">
<dti:dtiPanel id="display" value="#{viewApplicationConfig.getPanelBean('ApplicationGridDetailPanel')}"
toggleable="true" toggleSpeed="500" collapsed="false">
<dti:dtiLayer id="#{viewApplicationConfig.getLayer('ApplicationGridDetailLayer').getLayerId()}">
<div style="width: 600px;">
<div style="float: left">
<h:dataTable
value="#{viewApplicationConfig.getLayerFields('ApplicationGridDetailLayer')}"
var="field">
<h:column>
<ui:remove>
<h:outputText
value="testX: #{cc.attrs.dataBean.selectedRecord.getFieldValue('baseShortDescription')}"/> /
<h:outputText value="testX 1: #{cc.attrs.dataBean.selectedRecord.size}"/>
</ui:remove>
<dti:dtiField field="#{field}" record="#{cc.attrs.dataBean.selectedRecord}"/>
</h:column>
</h:dataTable>
</div>
</div>
</dti:dtiLayer>
</dti:dtiPanel>
</h:form>
</p:dialog>
</div>
</composite:implementation>
</html>
dtiField.xhtml
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:p="http://primefaces.prime.com.tr/ui"
xmlns:c="http://java.sun.com/jsp/jstl/core"
xmlns:fn="http://java.sun.com/jsp/jstl/functions"
xmlns:composite="http://java.sun.com/jsf/composite">
<composite:interface>
<composite:attribute name="field" required="true"/>
<composite:attribute name="record" type="dti.oasis.recordset.Record" required="true"/>
</composite:interface>
<composite:implementation>
<ui:remove>
<h:outputText value="FieldName 0: #{cc.attrs.record.getFieldNameList().get(0)}"/> / <h:outputText
value="test 1: #{cc.attrs.record.size()}"/>
</ui:remove>
<p:outputPanel rendered="#{cc.attrs.field.isVisible and !fn:endsWith(cc.attrs.field.fieldId, '_GH')}">
<div id="#{cc.clientId}">
<h:panelGrid columns="2">
<div style="width: 100%">
<div style="float: left; #{cc.attrs.field.style}">
#{cc.attrs.field.label}
</div>
<div style="float: right">
<h:outputText value="#{cc.attrs.record.getFieldValue(cc.attrs.field.fieldId)}" rendered="#{cc.attrs.field.isReadOnly}"/>
<h:inputText rendered="#{cc.attrs.field.displayType == 'TEXT' and !cc.attrs.field.isReadOnly}"
value="#{cc.attrs.record.getFieldValue(cc.attrs.field.fieldId)}"/>
<h:selectOneMenu rendered="#{cc.attrs.field.displayType == 'SELECT' and !cc.attrs.field.isReadOnly}">
<f:selectItems/>
</h:selectOneMenu>
<h:selectBooleanCheckbox rendered="#{cc.attrs.field.displayType == 'CHECKBOX' and !cc.attrs.field.isReadOnly}"
value="#{cc.attrs.record.getFieldValue(cc.attrs.field.fieldId)}"/>
<ui:remove>
<br/>Display Type: #{cc.attrs.field.displayType}
<br/>Visible: #{cc.attrs.field.isVisible}
<br/>Read Only: #{cc.attrs.field.isReadOnly}
<br/>Field Id: #{cc.attrs.field.fieldId}
<br/>Rows: #{cc.attrs.field.rowNum}
<br/>Columns: #{cc.attrs.field.colNum}
<br/>Field Value: #{cc.attrs.record.getFieldValue(cc.attrs.field.fieldId)}
</ui:remove>
</div>
</div>
</h:panelGrid>
</div>
</p:outputPanel>
</composite:implementation>
</html>
bean类如下所示：
package com.dti.admin.cwb.appconfigmgr.view;
import com.dti.admin.view.BaseAdminManagedBean;
import com.dti.view.ManagedBeanUtils;
import dti.admin.cwb.appconfigmgr.AppConfigManager;
import dti.oasis.recordset.Record;
import dti.oasis.recordset.RecordSet;
import org.primefaces.event.SelectEvent;
import org.primefaces.event.UnselectEvent;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Component;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import javax.faces.application.FacesMessage;
import javax.faces.context.FacesContext;
import javax.faces.event.ActionEvent;
import javax.servlet.http.HttpServletRequest;
import java.io.Serializable;
import java.util.List;
@Component("viewApplicationConfig")
@Scope("request")
public class ViewApplicationConfig extends BaseAdminManagedBean implements Serializable {
private AppConfigManager appConfigManager;
private String contextApplicationId;
private List<Record> applications;
private RecordSet applicationRecordSet;
//////
private Record selectedRecord;
public Record getSelectedRecord() {
System.out.println(new java.sql.Timestamp(System.currentTimeMillis()) + " -- "
+ this.getClass().getName() + " -- getSelectedRecord --");
if(selectedRecord!=null){
System.out.println(new java.sql.Timestamp(System.currentTimeMillis()) + " -- "
+ this.getClass().getName() + " -- getSelectedRecord -- getRecordNumber: "+
selectedRecord.getRecordNumber());
}
return selectedRecord;
}
public void setSelectedRecord(Record selectedRecord) {
this.selectedRecord = selectedRecord;
}
//////
public void onRowSelect(SelectEvent event) {
System.out.println("onRowSelect");
FacesMessage msg = new FacesMessage("Entity Selected",
(String)((Record) event.getObject()).getFieldValue("baseShortDescription"));
FacesContext.getCurrentInstance().addMessage(null, msg);
}
public void onRowUnselect(UnselectEvent event) {
System.out.println("onRowUnselect");
FacesMessage msg = new FacesMessage("Entity Unselected",
(String)((Record) event.getObject()).getFieldValue("baseShortDescription"));
FacesContext.getCurrentInstance().addMessage(null, msg);
}
///////////////////
public ViewApplicationConfig() {
System.out.println(new java.sql.Timestamp(System.currentTimeMillis()) + " -- "
+ this.getClass().getName() + " -- " + "ViewApplicationConfig()");
}
@Autowired()
public ViewApplicationConfig(AppConfigManager appConfigManager) {
System.out.println(new java.sql.Timestamp(System.currentTimeMillis()) + " -- "
+ this.getClass().getName() + " -- "
+ "ViewApplicationConfig(AppConfigManager appConfigManager)");
this.appConfigManager = appConfigManager;
this.setPageId("MaintainApplicationConfig");
this.setAnchorColumnName("applicationId");
}
@PostConstruct
public void onLoad() throws Exception {
System.out.println(new java.sql.Timestamp(System.currentTimeMillis()) + " -- "
+ this.getClass().getName() + " -- " + "onLoad()");
HttpServletRequest request = ManagedBeanUtils.getHttpServletRequest();
init(request);
//Grid Header
setXmlHeader(getGridHeader(request));
//From Action Class
Record inputRecord = getInputRecord(request);
//From prime-movicollector -- sort of
if(applicationRecordSet == null) {
applicationRecordSet = appConfigManager.loadAllWebApplications(inputRecord);
applications = ManagedBeanUtils.convertRecordSetToList(applicationRecordSet);
}
//
System.out.println(new java.sql.Timestamp(System.currentTimeMillis()) + " -- "
+ this.getClass().getName() + " -- XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX " + applications.size());
}
@PreDestroy
public void onUnload() {
System.out.println(new java.sql.Timestamp(System.currentTimeMillis()) + " -- "
+ this.getClass().getName() + " -- " + "onUnload()");
terminate();
}
public void navigateToPageConfig(ActionEvent actionEvent) {
System.out.println("navigateToPageConfig("+contextApplicationId+")");
String pageUrl = "/pageconfigmgr/maintainPageConfig.do?contextApplicationId=" + contextApplicationId;
navigateToPage(pageUrl);
}
public AppConfigManager getAppConfigManager() {
return appConfigManager;
}
public void setAppConfigManager(AppConfigManager appConfigManager) {
this.appConfigManager = appConfigManager;
}
public List<Record> getApplications() {
System.out.println(new java.sql.Timestamp(System.currentTimeMillis()) + " -- "
+ this.getClass().getName() + " -- " + "getApplications()");
return applications;
}
public void setApplications(List <Record> applications) {
System.out.println(new java.sql.Timestamp(System.currentTimeMillis()) + " -- "
+ this.getClass().getName() + " -- " + "setApplications(RecordSet applications)");
this.applications = applications;
}
public RecordSet getApplicationRecordSet() {
return applicationRecordSet;
}
public void setApplicationRecordSet(RecordSet applicationRecordSet) {
this.applicationRecordSet = applicationRecordSet;
}
public String getContextApplicationId() {
return contextApplicationId;
}
public void setContextApplicationId(String contextApplicationId) {
this.contextApplicationId = contextApplicationId;
}
}
是否有人使用复合组件有类似的问题，p：dataTable和p：dialog？
答案 0 :(得分：0)
我没有仔细阅读整个代码，因为您没有指向我的特定代码，例如“当我点击<p:commandButton id="someButton" ...”所以我只是'猜测'
我看到支持bean是使用Spring的容器进行请求作用的。我认为你遇到的问题是bean有一个请求的生命周期。如果你正在做AJAX之类的事情，比如在数据表中选择行，你需要一个视图范围的bean。有关不同范围的解释，请查看 this question 。
我也猜测你现在想要使用视图范围的bean，我知道Spring没有你可以使用的@Scope("view")。幸运的是Cagatay Civici来救援并发布了 a solution on his blog 。