PrimeFaces 3.4 barChart不工作

Question

我试图在我的项目中使用条形图，我想在点击按钮时创建条形图。这是我的bean代码：

@ManagedBean (name="CME24Summ")
@ViewScoped
public class CMESummRep implements Serializable {
    private Global glb = _common.findBean("_global", Global.class);
    private List<CME24_Summ> InfoList = new ArrayList<CME24_Summ>();
    private String SQL;
    private String searchLoc = "-";
    List<Location> listLoc = new ArrayList<Location>();
    private CartesianChartModel categoryModel = new CartesianChartModel();
    private Date endingDate, startingDate;
    List<Object> whereValues = new ArrayList<Object>();
    private CartesianChartModel categoryModel = new CartesianChartModel();

    public CMESummRep() {InitialzeLists();}

    private void createCategoryModel() {
        System.out.println("CHART CLASS");
        categoryModel = new CartesianChartModel();
        ChartSeries resolved = new ChartSeries();
        resolved.setLabel("Resolved");
        resolved.set("ABCD", 20);
        categoryModel.addSeries(resolved);
    }

    public void FillListRecords() {
        createCategoryModel();
    }

    public CartesianChartModel getCategoryModel() {
        return categoryModel;
    }

    public void setCategoryModel(CartesianChartModel categoryModel) {
        this.categoryModel = categoryModel;
    }
}

这是我的HTML代码：

<p:commandButton action="#{CME24Summ.FillListRecords}"
                 value="Show Data"
                 update="panelDataList"
                 process="@this,panelMain"
                 ajax="true"/>

<p:panelGrid style="width:100%" id="panelDataList">
    <p:row>
        <p:column>
            <h:outputText value="CHART" />

            <p:barChart id="basic"
                        value="#{CME24Summ.categoryModel}"
                        legendPosition="ne"
                        title="Basic Bar Chart"
                        min="0"
                        max="200"
                        style="height:300px"/>

        </p:column>
    </p:row>
</p:panelGrid>

现在，点击显示数据后，我的图表应该被创建并显示在网格上。但相反，没有出现任何内容而不是文字＆＃34; CHART＆＃34;。我做错了什么？