我正在将JSP / Servlets网站迁移到JSF,并且难以实现JSF的一些更有趣的功能。我试图解决了几天的当前问题是从<p:dataTable>
删除一行或多行。以下代码段定义了表:
<ui:composition template="/templates/RescueDBAdminTemplate.xhtml" ... >
<ui:define name="body">
<div id="mainContent">
<h1> Pet Information Edit </h1>
<p>
This page allows the detailed information for an animal to be inserted or edited.
</p>
<br />
<!--
~~~~ The first row contains the AIF number, and two optional hyperlinks to the History and Cage Card
~~~~ pages. Since we have at most three entries, and a layout of 4 columns, we will need a sub-table
~~~~ to evenly space out these objects.
~~~~ -->
<table class="w100pct">
<tr>
<!--
~~~~ Display the AIF_NO for the animal at the top of the page. For Reference Only.
~~~~ -->
<td class="label" align="left" >
AIF Number: #{animals.aifNo}
</td>
<td align="center"> <a href="/${context}/Protected/AifServlet?COMMAND=HISTORY&AIF_NO=${aifBean.aifNo}" target="window"> Display History </a> </td>
<td align="right"> <a href="/${context}/Protected/AifServlet?COMMAND=CARD&AIF_NO=${aifBean.aifNo}" target="window"> Display Cage Card </a> </td>
</tr>
</table>
<p:accordionPanel id="profile" multiple="true" activeIndex="0,1,2,3,4,5,6,7">
<p:tab title="Cage Card Information">
<h:form id="cageCardForm">
<p:panelGrid styleClass="rdbGrid w100pct">
<p:row>
<p:column styleClass="block"> Child Friendly: </p:column>
<p:column>
<p:selectOneMenu id="childFriendly" value="#{animals.isChildFriendly}">
<f:selectItem itemValue="Y" itemLabel="Yes" />
<f:selectItem itemValue="N" itemLabel="No" />
<f:selectItem itemValue="U" itemLabel="Unknown" />
<f:selectItem itemValue="O" itemLabel="Older Children Only" />
</p:selectOneMenu>
</p:column>
<p:column styleClass="block"> Dog Friendly: </p:column>
<p:column>
<p:selectOneMenu id="dogFriendly" value="#{animals.isDogFriendly}">
<f:selectItem itemValue="Y" itemLabel="Yes" />
<f:selectItem itemValue="N" itemLabel="No" />
<f:selectItem itemValue="U" itemLabel="Unknown" />
<f:selectItem itemValue="T" itemLabel="Tolerates" />
<f:selectItem itemValue="S" itemLabel="Some" />
</p:selectOneMenu>
</p:column>
</p:row>
<p:row>
<p:column styleClass="block"> Cat Friendly: </p:column>
<p:column>
<p:selectOneMenu id="catFriendly" value="#{animals.isCatFriendly}">
<f:selectItem itemValue="Y" itemLabel="Yes" />
<f:selectItem itemValue="N" itemLabel="No" />
<f:selectItem itemValue="U" itemLabel="Unknown" />
<f:selectItem itemValue="T" itemLabel="Tolerates" />
<f:selectItem itemValue="S" itemLabel="Some" />
</p:selectOneMenu>
</p:column>
<p:column styleClass="block"> Housebroken: </p:column>
<p:column>
<p:selectOneMenu id="housebroken" value="#{animals.isHousebroken}">
<f:selectItem itemValue="Y" itemLabel="Yes" />
<f:selectItem itemValue="N" itemLabel="No" />
<f:selectItem itemValue="U" itemLabel="Unknown" />
</p:selectOneMenu>
</p:column>
</p:row>
<p:row>
<p:column styleClass="block" style="text-align:top;"> Cage Card Comments: </p:column>
<p:column> <p:inputTextarea name="previousOwner" rows="11" cols="40" value="#{animals.cageCardComment}" /> </p:column>
<p:column styleClass="block" style="text-align:top;"> Lifestyle Needs: </p:column>
<p:column> <p:inputTextarea name="reasonObtained" rows="11" cols="40" value="#{animals.lifestyleNeeds}" /> </p:column>
</p:row>
</p:panelGrid>
</h:form>
</p:tab>
<p:tab title="Fees and Expenditures">
<h:form id="feesForm">
<p:panelGrid styleClass="rdbGrid w100pct">
<p:row>
<p:column styleClass="block"> Adoption Fee: </p:column>
<p:column>
<p:inputText size="16" value="#{animals.adoptionFee}" maxlength="64" />
</p:column>
<p:column styleClass="block"> Normal Costs: </p:column>
<p:column>
<p:inputText size="16" value="#{animals.costRegular}" maxlength="64" />
</p:column>
</p:row>
<p:row>
<p:column styleClass="block"> Extra Costs: </p:column>
<p:column>
<p:inputText size="16" value="${aifBean.costNonRegular}" maxlength="64" />
</p:column>
<p:column styleClass="block"> Extra Cost Description </p:column>
<p:column>
<p:inputTextarea rows="4" cols="40" value="#{animals.nonRegularDesc}" />
</p:column>
</p:row>
<p:row>
<p:column styleClass="block"> Comments </p:column>
<p:column colspan="3">
<p:inputTextarea rows="2" cols="80" value="#{animals.comments}" />
</p:column>
</p:row>
</p:panelGrid>
</h:form>
</p:tab>
<p:tab title="Medical History">
<p:dataTable styleClass="w100pct" var="current" value="#{medical.getMedHistoryByAifNo(param.AIF_NO)}">
<p:column headerText="Delete">
Delete
</p:column>
<p:column headerText="Procedure Name">
#{current.shortName}
</p:column>
<p:column headerText="Date">
#{current.treatmentDate}
</p:column>
<p:column headerText="Vet Information">
#{current.vetName} #{current.vetClinic}
</p:column>
<p:column headerText="Comments">
#{current.comments}
</p:column>
</p:dataTable>
</p:tab>
<p:tab title="Documents">
<h:form id="docListForm">
<p:dataTable id="docListTable" styleClass="w100pct" var="current" value="#{documents.currentDocList}"
paginator="true" rows="10" selection="#{documents.selectedDocs}">
<p:column selectionMode="multiple" style="width:2%" />
<p:column headerText="Date">
<h:outputText value="#{current.treatmentDate}" />
</p:column>
<p:column headerText="Document Type">
<h:outputText value="#{current.group}" converter="com.rescuedb.DocGroupName" />
</p:column>
<p:column headerText="Description">
#{current.description}
</p:column>
<f:facet name="footer">
<p:commandButton id="docListDelete" value="Delete Selected Records"
icon="ui-icon-search"
update=":#{p:component('docListTable')}"
actionListener="#{documents.deleteReference}" >
<f:param name="docNo" value="#{current.docNo}" />
<f:param name="refNo" value="#{animals.aifNo}" />
<f:param name="group" value="#{current.group}" />
</p:commandButton>
</f:facet>
</p:dataTable>
</h:form>
</p:tab>
</p:accordionPanel>
</div>
</ui:define>
</ui:composition>
支持此页面的托管bean如下所示(这是相当初步的代码,因为我还在尝试使用PrimeFaces和JSF):
package com.rescuedb.beans.managed;
import java.io.Serializable;
import java.util.List;
import java.util.Map;
import javax.annotation.PostConstruct;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.ViewScoped;
import javax.faces.context.FacesContext;
import javax.faces.event.ActionEvent;
import org.apache.log4j.Logger;
import com.rescuedb.Beans.DocMasterBean;
import com.rescuedb.Beans.DAO.DocMaster;
import com.rescuedb.Beans.DAO.DocXref;
import com.rescuedb.Beans.Models.DocMasterDataModel;
import com.rescuedb.Core.RescueException;
@ManagedBean(name="documents")
@ViewScoped
public class DocumentManagedBean implements Serializable
{
static final long serialVersionUID = 5L;
static Logger logger = Logger.getLogger(DocumentManagedBean.class);
private transient DocMaster docInfo; // Document Master accessor object
private transient DocXref xrfInfo; // Document Master accessor object
private String currentAifNo;
private String refNo;
private String docNo;
/**
* Contains a list of document records, wrapped in a DataModel, for the currently
* active foster animal.
*/
private DocMasterDataModel currentDocList = null;
private DocMasterBean[] selectedDocs;
public DocumentManagedBean()
{
logger.trace ("DocumentManagedBean.constructor");
try {
//
// Retrieve the URL parameter from the context.
//
FacesContext context = FacesContext.getCurrentInstance();
Map<String,String> paramMap = context.getExternalContext().getRequestParameterMap();
String paramAifNo = paramMap.get("AIF_NO");
if (paramAifNo != null) {
if (!paramAifNo.isEmpty()) {
currentAifNo = paramAifNo;
loadCurrentDocList();
}
}
} catch (Exception e) {
logger.error ("Exception caught in DocumentManagedBean() constructor :: " + e.getMessage(), e);
}
}
/**
* Initialize the bean from the database.
*/
@PostConstruct
public void initialize ()
{
logger.trace ("DocumentManagedBean.initialize");
try {
docInfo = new DocMaster();
xrfInfo = new DocXref();
} catch (Exception e) {
logger.error ("Exception in DocumentsManagedBean.initialize() : " + e.getMessage(), e);
}
}
public List<DocMasterBean> getDocList()
{
logger.trace ("DocumentManagedBean.getDocList");
return docInfo.getRecordList();
}
/**
* Retrieve the list of documents that are associated wit a specific foster animal.
* <p>
* @param aifNo
* @return
*/
public DocMasterDataModel getCurrentDocList()
{
logger.trace ("DocumentManagedBean.getCurrentDocList");
return currentDocList;
}
/**
* Load the document list for the currently active foster animal.
*/
private void loadCurrentDocList()
{
DocMaster docMaster = null;
logger.info ("DocumentManagedBean.loadCurrentDocList");
try {
docMaster = new DocMaster();
if (currentAifNo != null) {
if (!currentAifNo.isEmpty()) {
docMaster.queryByRefNo (Integer.parseInt(currentAifNo));
currentDocList = new DocMasterDataModel (docMaster.getRecordList());
logger.info ("DocumentManagedBean.loadCurrentDocList :: currentDocList reloaded, length = " + docMaster.getRecordCount());
} else {
logger.info ("DocumentManagedBean.loadCurrentDocList :: currentAifNo is empty, no records loaded.");
}
} else {
logger.info ("DocumentManagedBean.loadCurrentDocList :: currentAifNo is null, no records loaded.");
}
} catch (Exception e) {
logger.error ("Exception in DocumentsManagedBean.loadCurrentDocList() : " + e.getMessage(), e);
}
}
public void deleteReference(ActionEvent event)
{
boolean status; // Status of the update.
int refNo = 0;
int docNo = 0;
logger.info ("DocumentManagedBean.deleteReference");
try {
//
// Retrieve the parameter of the request.
//
FacesContext context = FacesContext.getCurrentInstance();
Map<String,String> paramMap = context.getExternalContext().getRequestParameterMap();
String paramDocNo = paramMap.get("docNo");
String paramRefNo = paramMap.get("refNo");
logger.info (String.format("DocumentManagedBean.deleteReference :: paramDocNo = [%s]", paramDocNo));
logger.info (String.format("DocumentManagedBean.deleteReference :: paramRefNo = [%s]", paramRefNo));
//
// Retrieve the items necessary to delete the proper records.
// The refNo parameter will only be specified when a specific cross-referenced
// record is to be deleted. If this value is missing, then the master document
// is to be deleted.
//
if (paramRefNo != null) {
try {
refNo = Integer.parseInt (paramRefNo);
this.refNo = paramRefNo;
} catch (NumberFormatException e) {
refNo = 0;
}
}
//
// The docNo has to be present. If the refNo is zero, then we will delete the
// master document. If a refNo is present, then we will delete a cross reference.
//
if (paramDocNo != null) {
try {
docNo = Integer.parseInt (paramDocNo);
this.docNo = paramDocNo;
} catch (NumberFormatException e) {
docNo = 0;
String message = String.format ("Illegal value for docNo (%d)", docNo);
logger.error(String.format("DocumentManagedBean.deleteReference :: Exception Message [%s]", message));
throw new RescueException ("DS000091", message, "DocumentsManagedBean", "deleteReference");
}
} else {
logger.error("DocumentManagedBean.deleteReference :: paramDocNo is null");
}
//
// Delete the cross reference record.
//
if (refNo != 0) {
xrfInfo = new DocXref();
status = xrfInfo.queryByCrossRef (docNo, refNo);
if (status != true) {
String message = String.format ("Error querying DOC_xref for refNo = %d, docNo = %d", refNo, docNo);
logger.error(String.format("DocumentManagedBean.deleteReference :: Exception Message [%s]", message));
throw new RescueException ("DS000092", message, "DocumentsManagedBean", "deleteReference");
} else {
status = xrfInfo.delete();
logger.warn("DocumentManagedBean.deleteReference :: Document XRef deleted");
// logger.warn("DocumentManagedBean.deleteReference :: TEST TEST TEST Document XRef not actually deleted");
if (status != true) {
String message = String.format ("Error deleting DOC_xref for refNo = %d, docNo = %d", refNo, docNo);
logger.error(String.format("DocumentManagedBean.deleteReference :: Exception Message [%s]", message));
throw new RescueException ("DS000093", message, "DocumentsManagedBean", "deleteReference");
} else {
loadCurrentDocList();
logger.error("DocumentManagedBean.deleteReference :: currentDocList reloaded");
}
}
} else {
logger.error("DocumentManagedBean.deleteReference :: refNo is 0. No Records were deleted.");
}
} catch (RescueException e) {
logger.error ("RescueException in DocumentsManagedBean.deleteReference() :: " + e.getMessage(), e);
} catch (Exception e) {
logger.error ("Exception in DocumentsManagedBean.deleteReference()", e);
}
}
public DocMaster getDocInfo()
{
logger.info ("DocumentManagedBean.getDocInfo");
return docInfo;
}
public void setDocInfo(DocMaster docInfo)
{
logger.info ("DocumentManagedBean.setDocInfo");
this.docInfo = docInfo;
}
public String getRefNo()
{
logger.info ("DocumentManagedBean.getRefNo");
return refNo;
}
public void setRefNo(String refNo)
{
logger.info ("DocumentManagedBean.setRefNo");
this.refNo = refNo;
}
public String getDocNo()
{
logger.info ("DocumentManagedBean.getDocNo");
return docNo;
}
public void setDocNo(String docNo)
{
logger.info ("DocumentManagedBean.setDocNo");
this.docNo = docNo;
}
public DocMasterBean[] getSelectedDocs()
{
logger.info ("DocumentManagedBean.getSelectedDocs");
return selectedDocs;
}
public void setSelectedDocs(DocMasterBean[] selectedDocs)
{
logger.info ("DocumentManagedBean.setSelectedDocs");
this.selectedDocs = selectedDocs;
}
}
我尝试了很多不同的策略,并在其他StackOverflow线程中阅读了相当多的非常详细的解释(谢谢你,BalusC!),但是仍然无法实际调用动作监听器。 / p>
我的环境如下:
从演示角度来看,XHTML正确显示。 <p:dataTable>
元素的呈现方式与文档和示例一样,但是当我尝试删除一行时,永远不会调用该侦听器。
我尝试过多次更改更新名称。目前,update
参数的值为profile:docListForm:docListTable
。
其他帖子似乎表明<p:commandButton>
内的<p:accordianPanel>
存在问题,但这是针对之前版本的PrimeFaces(3.2)。
我尝试将<p:commandButton>
移到<p:dataTable>
之外以及每行,但行为不会改变。
答案 0 :(得分:2)
如果你的监听器没有触发尝试这个,它在p:tables
中工作正常<p:column id="delete" headerText="Action" width="65">
<h:commandLink value="Delete"
action="#{documents.deleteReference(current.docNo,animals.aifNo,current.group)}" ajax="false" />
</p:column>
在你的文件bean中:
public void deleteReference(String docNo, String aifNo, String group)
你实际上可以传递最终作为int转换的2个字符串,但是作为方法中的Integer包装器而不是原语。
干杯,
亨利
答案 1 :(得分:-1)
尝试在命令按钮中添加 ajax =“false”属性,类似这样。
<p:commandButton value="Non-Ajax Submit" actionListener="#{pprBean.savePerson}"
ajax="false" />
或者也可以在 ajax =“false”使用 h:commandButton 。 在我的应用程序中,我有相同的问题充足的时间,我得到回答几周回到页面或代码在页面或托管bean抛出异常的问题或一些逻辑失败,这是生成JSF的异常,这是背后的主要原因触发事件。如果代码或逻辑在某处失败,则JSF2功能不会触发事件。可能这会对你有所帮助