Primefaces& jqplot-在轴上显示日期 [英] Primefaces & jqplot - Displaying dates on an axis

问题描述

我试图在PrimeFaces 3.4的折线图中使用扩展程序属性. 我需要使用扩展器来格式化带有日期/时间值的x轴.如果不使用扩展器，则无法执行此操作，因为数据点太多，如果使用默认的PF lineChart属性，则标签会被覆盖. 如下所示设置代码时，我得到一个x轴，不显示任何值.我只能看到x轴.请参阅图片以获取更多详细信息.我该如何设置以便X轴以hh:mm格式显示时间?

I am trying to use the extender atttribute on a line chart in PrimeFaces 3.4. I need to use extender to format the x-axis with date/time values. Doing this without extender is not an option as there are too many data points and the labels simply overwrite if I use the default PF lineChart attributes. When I setup the the code as shown below, I get an x-axis with no values displayed; all I can see is the x-axis. See pic for more details. How can I set this up so that the x-axis displays time in hh:mm format ?

XHTML代码

<script type="text/javascript" src="#{request.contextPath}/js/plugins/jqplot.dateAxisRenderer.min.js"></script>
<script type="text/javascript" src="#{request.contextPath}/js/plugins/jqplot.canvasAxisTickRenderer.min.js"></script>
<script type="text/javascript">
 function loginRateChartExt() {
  this.cfg.axes = { 
   yaxis: {
    numberTicks: 10,
    label: 'Logins per minute ->',
    labelRenderer: $.jqplot.CanvasAxisLabelRenderer,
    labelOptions: { fontFamily: 'Verdana', fontSize: '8pt' },
   },
   xaxis: { 
    renderer: $.jqplot.DateAxisRenderer,
    rendererOptions: { tickRenderer:$.jqplot.CanvasAxisTickRenderer },
    tickOptions: { formatString:'%H:%M' },
    label: 'Time of day ->',
    labelRenderer: $.jqplot.CanvasAxisLabelRenderer,
    labelOptions: { fontFamily: 'Verdana', fontSize: '8pt' }
   }
  }; 
 }
</script>
<p:lineChart id="loginRateChart" value="#{loginRateBean.chartModel}" extender="loginRateChartExt" />

Bean代码

for(int i = 0; i < workerBean.getSize(); i++) { // worker bean has the data
  for (String key : workerBean.getValueKeys()) { // each key refers to a series
    // chartSeriesMap is a map that contains all the series
    // workerBean.getKeyAt(i) returns Date
    // workerBean.getValueAt(i, key) returns a Number
    chartSeriesMap.get(key).set(workerBean.getKeyAt(i), workerBean.getValueAt(i, key).floatValue());
  }
}
for (String string : workerBean.getValueKeys()) {
 chartModel.addSeries(chartSeriesMap.get(string));
}

推荐答案

要实现此目的，您必须使用 .getTime();

To achieve it you must set the date values as LONG, using .getTime();

serie.set(registro.getDataAfericao().getTime(), registro.getValor());

有关更多信息: http://论坛. primefaces.org/viewtopic.php?f=3&t=23891&start=10

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