我使用primefaces使用数据表，我想选择一个特定的行并显示日期，但我面临的问题是当我选择任何行时它只显示第一行数据而不是选择的数据..这是代码
视图.xhtml：
<h:form prependId="false" id="form">
<p:dataTable id="dataTable" var="car" value="#{tableBean.getList()}"
paginator="true" rows="10" selectionMode="single" selection="#{tableBean.selectedCar}" rowKey="#{car.model}"
paginatorTemplate="{CurrentPageReport} {FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink} {RowsPerPageDropdown}"
rowsPerPageTemplate="5,10,15">
<f:facet name="header">
Posted Jobs
</f:facet>
<p:column>
<f:facet name="header">
<h:outputText value="Model" />
</f:facet>
<h:outputText value="#{car.model}" />
</p:column>
<p:column>
<f:facet name="header">
<h:outputText value="Year" />
</f:facet>
<h:outputText value="#{car.year}" />
</p:column>
<p:column>
<f:facet name="header">
<h:outputText value="Manufacturer" />
</f:facet>
<h:outputText value="#{car.manufacturer}" />
</p:column>
<p:column>
<f:facet name="header">
<h:outputText value="Color" />
</f:facet>
<h:outputText value="#{car.color}" />
</p:column>
<f:facet name="footer">
<p:commandButton id="viewButton" value="View" icon="ui-icon-search"
update=":form:display" oncomplete="carDialog.show()" actionListener="#{tableBean.add}"
/>
</f:facet>
</p:dataTable>
<p:dialog id="dialog" header="Car Detail" widgetVar="carDialog" resizable="false"
width="200" showEffect="clip" hideEffect="fold">
<h:panelGrid id="display" columns="2" cellpadding="4">
<h:outputText value="Model:" />
<h:outputText value="#{tableBean.selectedCar.model}" />
<h:outputText value="Year:" />
<h:outputText value="#{tableBean.selectedCar.year}" />
<h:outputText value="Manufacturer:" />
<h:outputText value="#{tableBean.selectedCar.manufacturer}" />
<h:outputText value="Color:" />
<h:outputText value="#{tableBean.selectedCar.color}" />
</h:panelGrid>
</p:dialog>
</h:form>
豆类：
package Bean;
import java.io.IOException;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
import javax.faces.context.FacesContext;
@ManagedBean
public class TableBean implements Serializable {
private static final long serialVersionUID = 1L;
private Cars selectedCar;
public Cars getSelectedCar() {
return selectedCar;
}
public void setSelectedCar(Cars selectedCar) {
this.selectedCar = selectedCar;
}
public static long getSerialversionuid() {
return serialVersionUID;
}
public List<Cars> getList() {
List<Cars> Carss = new ArrayList<Cars>();
Cars c = new Cars();
c.setColor("sd");
c.setManufacturer("sd");
c.setModel("sd");
c.setYear("1212");
Cars c1 = new Cars();
c1.setColor("sd");
c1.setManufacturer("sd");
c1.setModel("sd");
c1.setYear("1000");
Carss.add(c1);
Carss.add(c);
return Carss;
}
public void add(){
System.out.print(getSelectedCar().getYear());
}
}