无法正确实现Primefaces图表

Question

我想实现Primefaces图表。但我无法正确设置图表的传说：

这是我用它来构建图表代码：

<h:form> 

    <p:barChart id="basic" value="#{DashboardController.categoryModel}" legendPosition="ne" 
       title="Accounts and Groups" min="0" max="#{DashboardController.chartMaxSize}" style="height:400px" 
       shadow="true" barPadding="90" seriesColors="4D94FF, 1975FF, 005CE6, 0047B2" 
       yaxisLabel="Size"/> 
</h:form> 

Java代码：

private void createCategoryModel() throws SQLException, Exception 
    { 
     categoryModel = new CartesianChartModel(); 

     // Active Accounts 

     ChartSeries chart = new ChartSeries(); 
     chart.setLabel("Active Accounts"); 

     chart.set("Active Accounts", countDBActiveAccounts()); 

     // Blocked Accounts 

     chart.setLabel("Blocked Accounts"); 

     chart.set("Blocked Accounts", countDBBlockedAccounts()); 


     // Active Groups 

     chart.setLabel("Active Groups"); 

     chart.set("Active Groups", countDBActiveGroups()); 


     // Blocked Groups 

     chart.setLabel("Blocked Groups"); 

     chart.set("Blocked Groups", countDBBlockedGroups()); 

     categoryModel.addSeries(chart); 



    } 

你能帮我正确构建图表吗？

P.S从@Ravi提出的代码我得到这个图表：

Answer 1

您应该使用ChartSeries中的不同实例这样

private void createCategoryModel() throws SQLException, Exception 
{ 
    categoryModel = new CartesianChartModel(); 

    // Active Accounts 

    ChartSeries actAcc = new ChartSeries(); 
    actAcc .setLabel("Active Accounts"); 

    actAcc.set("Active Accounts", countDBActiveAccounts()); 
    actAcc.set("Blocked Accounts", 0); 
    actAcc.set("Active Groups", 0); 
    actAcc.set("Blocked Groups", 0); 

    // Blocked Accounts 

    ChartSeries blocAcc = new ChartSeries(); 
    blocAcc.setLabel("Blocked Accounts"); 

    blocAcc.set("Active Accounts", 0); 
    blocAcc.set("Blocked Accounts", countDBBlockedAccounts()); 
    blocAcc.set("Active Groups", 0); 
    blocAcc.set("Blocked Groups", 0); 


    // Active Groups 

    ChartSeries actGrp = new ChartSeries(); 
    actGrp.setLabel("Active Groups"); 

    actGrp.set("Active Accounts", 0); 
    actGrp.set("Blocked Accounts", 0); 
    actGrp.set("Active Groups", countDBActiveGroups()); 
    actGrp.set("Blocked Groups", 0); 


    // Blocked Groups 

    ChartSeries blocGrp = new ChartSeries(); 
    blocGrp.setLabel("Blocked Groups"); 

    blocGrp.set("Active Accounts", 0); 
    blocGrp.set("Blocked Accounts", 0); 
    blocGrp.set("Active Groups", 0); 
    blocGrp.set("Blocked Groups", countDBBlockedGroups()); 

    categoryModel.addSeries(actAcc); 
    categoryModel.addSeries(blocAcc); 
    categoryModel.addSeries(actGrp); 
    categoryModel.addSeries(blocGrp); 

}