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我在JSF應用程序中使用PrimeFaces 5.1。在此應用程序的列表頁面上，我將Primefaces Datatable與分頁結合使用。表中某列的值是一個primefaces命令鏈接，它在click上被定義爲調用具有SessionScope的JSF ManagedBean類中定義的動作方法。該數據表本身是在使用具有h：form定義的模板XHTML的XHTML頁面中定義的。因此這個數據表嵌套在那個h：表格中。p：commandLink在p：datatable中不起作用，頁面1後分頁
我面臨的問題是ManagedBean中定義的方法只能從datatable的第一頁上呈現的commandLinks中調用，而從後續頁面上的commandLinks不會調用action方法。我還注意到，由於總記錄數少於100，所以當我將XHTML中數據表的'rows'屬性的值設置爲每頁100行時，只有一個頁面被渲染，然後當我選擇10或50列表頁面中分頁下拉列表中的每頁行數選項顯示，但鏈接正常工作。但是，從代碼中，如果我在XHTML代碼中將行值設置爲每頁50或10行，問題似乎就會發生。
我檢查螢火JS以及鍍鉻JS控制檯，並沒有錯誤也沒有tomcat的日誌文件顯示，即使我在web.xml設置了javax.faces.PROJECT_STAGE的context-param到Development任何日誌錯誤。這種行爲的原因是什麼？我該如何解決這個問題？
下面是我對數據表JSF片段：
<p:dataTable id="data" widgetVar="dataTable" var="customer" value="#{customerServicePortaltBacking.customers}"
paginator="true"
rows="50"
paginatorTemplate="{RowsPerPageDropdown} {FirstPageLink} {PreviousPageLink} {CurrentPageReport} {NextPageLink} {LastPageLink}"
rowsPerPageTemplate="10,50,100">
<p:column style="width: 14%">
<f:facet name="header">
<p:outputLabel value="#{msg['customerId']}" styleClass="covFont"/>
</f:facet>
<h:outputText value="#{customer.customerId}" styleClass="covFont"/>
</p:column>
<p:column style="width: 66%">
<f:facet name="header">
<p:outputLabel value="#{msg['name']}" styleClass="covFont"/>
</f:facet>
<h:outputText value="#{customer.name}" styleClass="covFont"/>
</p:column>
<p:column style="width: 10%">
<f:facet name="header">
<p:outputLabel value="#{msg['deptId']}" styleClass="covFont"/>
</f:facet>
<h:outputText value="#{customer.deptId}" styleClass="covFont"/>
</p:column>
<p:column style="width: 10%">
<f:facet name="header">
<p:outputLabel value="#{msg['view']}" styleClass="covFont"/>
</f:facet>
<p:commandLink id="invoiceButton" value="#{msg['customers.invoices']}" action="#{customerServicePortaltBacking.goInvoiceCategories(customer)}"
></p:commandLink>
</p:column>
</p:dataTable>
下面是Managed Bean的類代碼：
package com.assetworks.csportal;
import com.assetworks.csportal.orm.*;
import org.apache.commons.lang.StringUtils;
import org.primefaces.component.datatable.DataTable;
import org.primefaces.event.SelectEvent;
import org.primefaces.event.UnselectEvent;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
import javax.faces.context.FacesContext;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import java.io.FileInputStream;
import java.text.MessageFormat;
import java.util.*;
import java.util.logging.Logger;
@ManagedBean
@SessionScoped
public class CustomerServicePortaltBacking {
private static final Logger LOGGER =
Logger.getLogger(CustomerServicePortaltBacking.class.getName());
private List<Customer> customers = null;
private Stack<Screens> screensStack = new Stack<>();
//Screen
private Screens screen = Screens.CustomerBrowse;
private String customerName;
private Customer customer;
public String getCustomerName() {
if(customerName == null){
String name = new DataAccess().getCustomerName(getContactId());
if(name == null)
name = "";
customerName = name;
}
return customerName;
}
public void setCustomerName(String customerName) {
this.customerName = customerName;
}
public List<Customer> getCustomers() {
if(customers == null){
customers = new DataAccess().getCustomers(getContactId());
}
List<Customer> filteredCustomers = new LinkedList<>();
if(hasValue(this.getSearch())) {
String search = getSearch().toUpperCase();
for (Customer customer : customers) {
if(customer.getCustomerId().indexOf(search) != -1 || customer.getName().toUpperCase().indexOf(search) != -1 || customer.getDeptId().indexOf(search) != -1){
filteredCustomers.add(customer);
}
}
}
else{
filteredCustomers = customers;
}
return filteredCustomers;
}
public String goCusomerList(){
screensStack.clear();
DataTable dataTable = (DataTable) FacesContext.getCurrentInstance().getViewRoot().findComponent("form:data");
if(dataTable != null) {
dataTable.resetValue();
dataTable.processUpdates(FacesContext.getCurrentInstance());
}
setScreen(Screens.CustomerBrowse);
return Screens.CustomerBrowse.getId();
}
public String goHome(){
search = null;
return goCusomerList();
}
public String goInvoiceCategories(Customer customer){
categories = null;
this.customer = customer;
this.setScreen(Screens.CustomerServiceCategory);
return Screens.CustomerServiceCategory.getId();
}
public String goBack() {
this.screen = screensStack.pop();
return getScreen().getId();
}
public boolean hasValue(String str){
return str != null && str.length() > 0;
}
public void setCustomer(Customer customer) {
this.customer = customer;
}
public String authenticateUser() {
isUserAuthenticated = true;
return goCusomerList();
}
public void setScreen(Screens screen) {
screensStack.push(getScreen());
this.screen = screen;
}
public Screens getScreen() {
return this.screen;
}
public String getMessage(String key, Object[] args){
String result = "[Key " + key + " not found in messages.properties]";
try {
FacesContext context = FacesContext.getCurrentInstance();
ResourceBundle bundle =
ResourceBundle.getBundle("messages",
context.getViewRoot().getLocale());
result = new MessageFormat(bundle.getString(key)).format(args);
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
public String getVersion(){
return Application.VERSION;
}
public String getScreenlabel() {
return getMessage(screen.getId(), new Object[0]);
}
public Customer getCustomer() {
return customer;
}
public void setCustomers(List<Customer> customers) {
this.customers = customers;
}
public boolean isCustomerExternal(){
return customer.getDeptId().toUpperCase().startsWith("UFL");
}
}
2 sugestions ...創建一個[mcve]並嘗試最新的PF版本和最近的jsf版本 – Kukeltje
可能以相反的順序完成 – Kukeltje