Bean属性仅在页面刷新后加载

Question

officeProductionBean.officeName仅在我手动刷新页面后加载。我在Primefaces 5.3中使用@Managedbean和@SessionScoped注释。

xhtml页面 从另一页传递的值

  <f:metadata>
        <f:viewParam name="id" value="#{officeProductionBean.officeCode}" />
    </f:metadata>

<h:form>
        <p:dataTable value="#{officeProductionBean.officeProductions}" var="officeProductions">

            <f:facet name="header">
                <h:outputText value="Office Production for: #{officeProductionBean.officeName}"/>

            </f:facet>
            <p:column headerText="Total" >
                <h:outputText value="#{officeProductions.total}" />
            </p:column>

            <p:column headerText="Volume" >
                <h:outputText value="#{officeProductions.volume}">
                    <f:convertNumber type="currency" currencySymbol="$" />
                </h:outputText>
            </p:column>

            <p:column headerText="Closing Date" >
                <h:outputText value="#{officeProductions.closingDate}" />
            </p:column>

        </p:dataTable>
    </h:form>

豆

     @ManagedBean
     @SessionScoped
     public class OfficeProductionBean implements Serializable {

     private static final long serialVersionUID = 1L;

             [clip]

    public List<OfficeProduction> getOfficeProductions() throws ClassNotFoundException, SQLWarning, SQLException {
    Connection connect = null;

    try {
        Class.forName("com.mysql.jdbc.Driver");
        connect = DriverManager.getConnection(URL, USERNAME, PASSWORD);

    } catch (SQLException ex) {
        System.out.println("in exec");
        System.out.println(ex.getMessage());
    }

    officeProductions = new ArrayList<>();
    PreparedStatement ps = connect.prepareStatement("CALL OfficeMonthlyProduction(?);");
    ps.setString(1, officeCode);


    ResultSet rs = ps.executeQuery();

    barModel = new BarChartModel();
    ChartSeries office = new ChartSeries();

    while (rs.next()) {
        total = rs.getString("Total");
        volume = rs.getString("Volume");
        officeName = rs.getString("officename");
        closingDate = rs.getString("Closing Date");

        OfficeProduction officeProduction = new OfficeProduction(total, volume, closingDate, officeName);
        officeProductions.add(officeProduction);

        // Set data points for chart
        office.set(closingDate, Integer.parseInt(total));

    }

    office.setLabel(officeName + " Production");
    barModel.addSeries(office);

    barModel.setTitle("Monthly Production");
    barModel.setLegendPosition("ne");

    Axis xAxis = barModel.getAxis(AxisType.X);
    xAxis.setLabel("Month");

    Axis yAxis = barModel.getAxis(AxisType.Y);
    yAxis.setLabel("# of Transactions");

    rs.close();
    ps.close();
    connect.close();

    return officeProductions;
}

public BarChartModel getBarModel() {
    return barModel;
}

// Only one office name.  Using it so I can populate form.
public String getOfficeName() {
    return officeName;
}

public String getOfficeCode() {
    return officeCode;
}

public void setOfficeCode(String officeCode) {
    this.officeCode = officeCode;
}

OfficeProduction Bean

package beans;

import java.text.DecimalFormat;


public class OfficeProduction {
private String total;
private String volume;
private String closingDate;
private String officeName;

public OfficeProduction(String total, String volume, String closingDate, String officeName) {
    this.total = total;
    this.volume = volume;
    this.closingDate = closingDate;
    this.officeName = officeName;
}


public String getTotal() {
    return total;
}

public void setTotal(String total) {
    this.total = total;
}

public String getVolume() {

    // Rather have done this in Presentation layer, but Primefaces is giving me a hard time.
    String volumeCurrency = DecimalFormat.getCurrencyInstance().format(Double.parseDouble(volume));
    return volumeCurrency;
}

public void setVolume(String volume) {
    this.volume = volume;
}

public String getClosingDate() {
    return closingDate;
}

public void setClosingDate(String closingDate) {
    this.closingDate = closingDate;
}

public String getOfficeName() {
    return officeName;
}

public void setOfficeName(String officeName) {
    this.officeName = officeName;
}
}