<chart caption="Sales - 2012 v 2013" numberprefix="$" plotgradientcolor="" bgcolor="FFFFFF" showalternatehgridcolor="0" divlinecolor="CCCCCC" showvalues="0" showcanvasborder="0" canvasborderalpha="0" canvasbordercolor="CCCCCC" canvasborderthickness="1" yaxismaxvalue="30000" captionpadding="30" linethickness="3" yaxisvaluespadding="15" legendshadow="0" legendborderalpha="0" palettecolors="#f8bd19,#008ee4,#33bdda,#e44a00,#6baa01,#583e78" showborder="0"> <categories> <category label="Jan" /> <category label="Feb" /> <category label="Mar" /> <category label="Apr" /> <category label="May" /> <category label="Jun" /> <category label="Jul" /> <category label="Aug" /> <category label="Sep" /> <category label="Oct" /> <category label="Nov" /> <category label="Dec" /> </categories> <dataset seriesname="2013"> <set value="22400" /> <set value="24800" /> <set value="21800" /> <set value="21800" /> <set value="24600" /> <set value="27600" /> <set value="26800" /> <set value="27700" /> <set value="23700" /> <set value="25900" /> <set value="26800" /> <set value="24800" /> </dataset> <dataset seriesname="2012"> <set value="10000" /> <set value="11500" /> <set value="12500" /> <set value="15000" /> <set value="16000" /> <set value="17600" /> <set value="18800" /> <set value="19700" /> <set value="21700" /> <set value="21900" /> <set value="22900" /> <set value="20800" /> </dataset> </chart>实现代码如下：
package com.oracle; import java.awt.Basicstroke; import java.awt.Color; import java.awt.Dimension; import java.awt.polygon; import java.awt.Shape; import java.awt.geom.Rectangle2D; import java.io.File; import java.io.IOException; import java.io.PrintWriter; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.List; import org.dom4j.Document; import org.dom4j.DocumentException; import org.dom4j.Element; import org.dom4j.io.SAXReader; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.DefaultDrawingsupplier; import org.jfree.chart.plot.Drawingsupplier; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.renderer.category.LineAndShapeRenderer; import org.jfree.data.category.CategoryDataset; import org.jfree.data.category.DefaultCategoryDataset; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; //参见http://xuehu2009.iteye.com/blog/480387 public class Test3 extends ApplicationFrame { private static List<String> month = new ArrayList<String>(); private static List<Integer> tongJi_2012 = new ArrayList<Integer>(); private static List<Integer> tongJi_2013 = new ArrayList<Integer>(); /** * 画板的构造方法 * * @param title */ public Test3(final String title) { super(title); final CategoryDataset dataset = createDataset(); final JFreeChart chart = createChart(dataset); final ChartPanel chartPanel = new ChartPanel(chart); chartPanel.setPreferredSize(new java.awt.Dimension(500,270)); setContentPane(chartPanel); } /** * 新建一个数据集合 * * @return 返回一个数据集合 */ private CategoryDataset createDataset() { readxml(); DefaultCategoryDataset linedataset = new DefaultCategoryDataset(); DefaultCategoryDataset dataset = null; for (int i = 0; i < month.size(); i++) { // 用法参见：linedataset.addValue(value,rowKey,columnKey); linedataset.addValue(tongJi_2012.get(i),"2012",month.get(i)); linedataset.addValue(tongJi_2013.get(i),"2013",month.get(i)); linedataset.addValue(3000,"2014",month.get(i)); linedataset.addValue(2000,"2015",month.get(i)); } dataset = linedataset; return dataset; } /** * 通过上面函数的得到的数据集合创建一个图表 * * @param dataset * @return */ private JFreeChart createChart(final CategoryDataset dataset) { final JFreeChart chart = ChartFactory.createLineChart( "JFreechart Test",// chart title "Type",// 横坐标意义 "Value",// 纵坐标意义 dataset,// 数据集合 PlotOrientation.VERTICAL,// orientation true,// include legend true,// tooltips false // urls ); // final StandardLegend legend = (StandardLegend) chart.getLegend(); // legend.setdisplaySeriesShapes(true); final Shape[] shapes = new Shape[3]; int[] xpoints; int[] ypoints; // right-pointing triangle xpoints = new int[] { -3,3,-3 }; ypoints = new int[] { -3,3 }; shapes[0] = new polygon(xpoints,ypoints,3); // vertical rectangle shapes[1] = new Rectangle2D.Double(-2,-3,6); // left-pointing triangle xpoints = new int[] { -3,3 }; ypoints = new int[] { 0,3 }; shapes[2] = new polygon(xpoints,3); final Drawingsupplier supplier = new DefaultDrawingsupplier( DefaultDrawingsupplier.DEFAULT_PAINT_SEQUENCE,DefaultDrawingsupplier.DEFAULT_OUTLINE_PAINT_SEQUENCE,DefaultDrawingsupplier.DEFAULT_stroke_SEQUENCE,DefaultDrawingsupplier.DEFAULT_OUTLINE_stroke_SEQUENCE,shapes); final CategoryPlot plot = chart.getCategoryPlot(); plot.setDrawingsupplier(supplier); chart.setBackgroundPaint(Color.white); // set the stroke for each series... // 设置每个线条的样式，本例中有4条线 plot.getRenderer().setSeriesstroke( 0,new Basicstroke(2.0f,Basicstroke.CAP_ROUND,Basicstroke.JOIN_ROUND,1.0f,new float[] { 10.0f,6.0f },// 虚线的横纵长度 0.0f)); plot.getRenderer().setSeriesstroke( 1,new float[] { 6.0f,0.0f)); plot.getRenderer().setSeriesstroke( 2,new float[] { 2.0f,0.0f)); plot.getRenderer().setSeriesstroke( 3,Basicstroke.CAP_SQUARE,0.0f)); // customise the renderer... final LineAndShapeRenderer renderer = (LineAndShapeRenderer) plot .getRenderer(); // renderer.setDrawShapes(true); renderer.setItemLabelsVisible(true); // renderer.setLabelGenerator(new StandardCategoryLabelGenerator()); // customise the range axis... final NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis(); rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits()); rangeAxis.setAutoRangeIncludesZero(false); rangeAxis.setUpperMargin(0.12); return chart; } /** * 读XML文件 */ public void readxml() { SAXReader saxReader = new SAXReader(); try { Document doc = saxReader.read(new File("123.xml")); Element element = doc.getRootElement(); List list = element.elements(); for (int i = 0; i < list.size(); i++) { Element elementz = (Element) list.get(i); List list1 = elementz.elements(); if (elementz.getName().equals("categories")) { for (int j = 0; j < list1.size(); j++) { Element elementz2 = (Element) list1.get(j); month.add(elementz2.attributeValue("label")); } } else if (elementz.getName().equals("dataset")) { if (elementz.attributeValue("seriesname").equals("2013")) { for (int j = 0; j < list1.size(); j++) { Element elementz2 = (Element) list1.get(j); tongJi_2013.add(Integer.parseInt(elementz2 .attributeValue("value"))); } } else if (elementz.attributeValue("seriesname").equals( "2012")) { for (int j = 0; j < list1.size(); j++) { Element elementz2 = (Element) list1.get(j); tongJi_2012.add(Integer.parseInt(elementz2 .attributeValue("value"))); } } } } for (int i = 0; i < month.size(); i++) { System.out.print(month.get(i) + " "); System.out.print(tongJi_2012.get(i) + " "); System.out.println(tongJi_2013.get(i)); } } catch (Exception e) { // Todo Auto-generated catch block e.printstacktrace(); } } public static void main(String[] args) { final Test3 demo = new Test3("JFreeChart Test"); demo.pack(); RefineryUtilities.centerFrameOnScreen(demo); demo.setVisible(true); } }
结果如下图所示：
