public class JFreeZheXianTest{

 public static XYSeries xyCPUseries = new XYSeries("CPU");

 public static int hundroud = 0;
 public static JFreeChart jfreechart = null;

 public JPanel getCPUJFreeChart(){

 jfreechart = ChartFactory.createXYLineChart(
  null, null, null, createDataset1(),
  PlotOrientation.VERTICAL, false, true, false);

 StandardChartTheme mChartTheme = new StandardChartTheme("CN");
 mChartTheme.setLargeFont(new Font("黑體", Font.BOLD, 20));
 mChartTheme.setExtraLargeFont(new Font("宋體", Font.PLAIN, 15));
 mChartTheme.setRegularFont(new Font("宋體", Font.PLAIN, 15));
 ChartFactory.setChartTheme(mChartTheme);

 jfreechart.setBorderPaint(new Color(0,204,205));
 jfreechart.setBorderVisible(true);

 XYPlot xyplot = (XYPlot) jfreechart.getPlot();

 // Y軸
 NumberAxis numberaxis = (NumberAxis) xyplot.getRangeAxis();
 numberaxis.setLowerBound(0);
 numberaxis.setUpperBound(100);
 numberaxis.setTickUnit(new NumberTickUnit(100d));
 // 只顯示整數(shù)值
 numberaxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
 // numberaxis.setAutoRangeIncludesZero(true);
 numberaxis.setLowerMargin(0); // 數(shù)據(jù)軸下（左）邊距 ­
 numberaxis.setMinorTickMarksVisible(false);// 標記線是否顯示
 numberaxis.setTickMarkInsideLength(0);// 外刻度線向內(nèi)長度
 numberaxis.setTickMarkOutsideLength(0);

 // X軸的設計
 NumberAxis x = (NumberAxis) xyplot.getDomainAxis();
 x.setAutoRange(true);// 自動設置數(shù)據(jù)軸數(shù)據(jù)范圍
 // 自己設置橫坐標的值
 x.setAutoTickUnitSelection(false);
 x.setTickUnit(new NumberTickUnit(60d));
 // 設置最大的顯示值和最小的顯示值
 x.setLowerBound(0);
 x.setUpperBound(60);
 // 數(shù)據(jù)軸的數(shù)據(jù)標簽：只顯示整數(shù)標簽
 x.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
 x.setAxisLineVisible(true);// X軸豎線是否顯示
 x.setTickMarksVisible(false);// 標記線是否顯示

 RectangleInsets offset = new RectangleInsets(0, 0, 0, 0);
 xyplot.setAxisOffset(offset);// 坐標軸到數(shù)據(jù)區(qū)的間距
 xyplot.setBackgroundAlpha(0.0f);// 去掉柱狀圖的背景色
 xyplot.setOutlinePaint(null);// 去掉邊框

 // ChartPanel chartPanel = new ChartPanel(jfreechart);
 // chartPanel.restoreAutoDomainBounds();//重置X軸

 ChartPanel chartPanel = new ChartPanel(jfreechart, true);

 return chartPanel;
 }

 /**
 * 該方法是數(shù)據(jù)的設計
 * 
 * @return
 */
 public static XYDataset createDataset1() {
 XYSeriesCollection xyseriescollection = new XYSeriesCollection();
 xyseriescollection.addSeries(xyCPUseries);
 return xyseriescollection;
 }

 /**
 * 隨機生成的數(shù)據(jù)
 */
 public static void dynamicRun() {
 int i = 0;
 while (true) {

  double factor = Math.random()*100;

  hundroud = (int)factor;
  jfreechart.setTitle("CPU的大小是：  "+hundroud+"%");
  jfreechart.getTitle().setFont(new Font("微軟雅黑", 0, 16));//設置標題字體

  xyCPUseries.add(i, factor);

  try {
  Thread.currentThread();
  Thread.sleep(1000);
  } catch (InterruptedException e) {
  e.printStackTrace();
  }
  i++;
  if (i == 60){
  i=0;
  xyCPUseries.delete(0, 59);
  continue;
  }
 }
 }

 public static void main(String[] args) {
 JFreeZheXianTest jz = new JFreeZheXianTest();
 JFrame frame = new JFrame();
 frame.setSize(700, 500);
 frame.getContentPane().add(jz.getCPUJFreeChart(), BorderLayout.CENTER);

 frame.setVisible(true);
 frame.setLocationRelativeTo(null); // 窗口居于屏幕正中央
 frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
 dynamicRun();
 }
}