1:饼图: package test; import java.awt.Font; import javax.swing.JPanel; import org.jfree.chart.ChartFactory;import org.jfree.chart.ChartPanel;import org.jfree.chart.JFreeChart;import org.jfree.chart.plot.PiePlot;import org.jfree.data.general.DefaultPieDataset;import org.jfree.data.general.PieDataset;import org.jfree.ui.ApplicationFrame;import org.jfree.ui.RefineryUtilities; public class PieCharts extends ApplicationFrame...{ public PieCharts(String s)...{ super(s); setContentPane(createDemoPanel()); } // 生成显示图表的面板 public static JPanel createDemoPanel()...{ JFreeChart jfreechart = createChart(createDataset()); return new ChartPanel(jfreechart); } // 生成饼图数据集对象 public static PieDataset createDataset()...{ DefaultPieDataset defaultpiedataset = new DefaultPieDataset(); defaultpiedataset.setValue("管理人员",10.02D); defaultpiedataset.setValue("市场人员",20.23D); defaultpiedataset.setValue("开发人员",60.02D); defaultpiedataset.setValue("OEM人员",10.02D); defaultpiedataset.setValue("其他人员",5.11D); return defaultpiedataset; } //生成图表主对象JFreeChart public static JFreeChart createChart(PieDataset piedataset)...{ //定义图表对象 JFreeChart jfreechart = ChartFactory.createPieChart("CityInfoPort公司组织架构图",piedataset,true,true,false); //获得图表显示对象 PiePlot pieplot = (PiePlot)jfreechart.getPlot(); //设置图表标签字体 pieplot.setLabelFont(new Font("SansSerif",Font.BOLD,12)); pieplot.setNoDataMessage("No data available"); pieplot.setCircular(true); pieplot.setLabelGap(0.01D);//间距 return jfreechart; } public static void main(String[] args)...{ PieCharts fjc = new PieCharts("CityInfoPort公司组织架构图"); fjc.pack(); RefineryUtilities.centerFrameOnScreen(fjc); fjc.setVisible(true); } }2:折线图 package test; import javax.swing.JPanel; 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.PlotOrientation;import org.jfree.data.category.DefaultCategoryDataset;import org.jfree.ui.ApplicationFrame;import org.jfree.ui.RefineryUtilities; public class LineCharts extends ApplicationFrame ...{ public LineCharts(String s) ...{ super(s); setContentPane(createDemoLine()); } public static void main(String[] args) ...{ LineCharts fjc = new LineCharts("折线图"); fjc.pack(); RefineryUtilities.centerFrameOnScreen(fjc); fjc.setVisible(true); } // 生成显示图表的面板 public static JPanel createDemoLine() ...{ JFreeChart jfreechart = createChart(createDataset()); return new ChartPanel(jfreechart); } // 生成图表主对象JFreeChart public static JFreeChart createChart(DefaultCategoryDataset linedataset) ...{ //定义图表对象 JFreeChart chart = ChartFactory.createLineChart("折线图", // chart title "时间", // domain axis label "销售额(百万)", // range axis label linedataset, // data PlotOrientation.VERTICAL, // orientation true, // include legend true, // tooltips false // urls ); CategoryPlot plot = chart.getCategoryPlot(); // customise the range axis... NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis(); rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits()); rangeAxis.setAutoRangeIncludesZero(true); rangeAxis.setUpperMargin(0.20); rangeAxis.setLabelAngle(Math.PI / 2.0); return chart; } //生成数据 public static DefaultCategoryDataset createDataset() ...{ DefaultCategoryDataset linedataset = new DefaultCategoryDataset(); // 各曲线名称 String series1 = "冰箱"; String series2 = "彩电"; String series3 = "洗衣机"; // 横轴名称(列名称) String type1 = "1月"; String type2 = "2月"; String type3 = "3月"; linedataset.addValue(0.0, series1, type1); linedataset.addValue(4.2, series1, type2); linedataset.addValue(3.9, series1, type3); linedataset.addValue(1.0, series2, type1); linedataset.addValue(5.2, series2, type2); linedataset.addValue(7.9, series2, type3); linedataset.addValue(2.0, series3, type1); linedataset.addValue(9.2, series3, type2); linedataset.addValue(8.9, series3, type3); return linedataset; } } 3:柱状图: package test; import java.awt.Color; import javax.swing.JPanel; import org.jfree.chart.ChartFactory;import org.jfree.chart.ChartPanel;import org.jfree.chart.JFreeChart;import org.jfree.chart.labels.StandardCategoryItemLabelGenerator;import org.jfree.chart.plot.CategoryPlot;import org.jfree.chart.plot.PlotOrientation;import org.jfree.chart.renderer.category.BarRenderer3D;import org.jfree.data.category.CategoryDataset;import org.jfree.data.general.DatasetUtilities;import org.jfree.ui.ApplicationFrame;import org.jfree.ui.RefineryUtilities; public class BarCharts extends ApplicationFrame ...{ public BarCharts(String s) ...{ super(s); setContentPane(createDemoBar()); } // 生成显示图表的面板 public static JPanel createDemoBar() ...{ JFreeChart jfreechart = createChart(createDataset()); return new ChartPanel(jfreechart); } // 生成图表主对象JFreeChart public static JFreeChart createChart(CategoryDataset dataset) ...{ JFreeChart chart = ChartFactory.createBarChart3D("水果销量统计图", //建立3D柱状图 "水果",//横轴名称 "销量",//纵轴名称 dataset,//数据集 PlotOrientation.VERTICAL,//纵向显示 true,//显示每个颜色柱子的柱名 false, false); CategoryPlot plot = chart.getCategoryPlot();//设置图的高级属性 BarRenderer3D renderer = new BarRenderer3D();//3D属性修改 renderer.setBaseOutlinePaint(Color.BLACK);//设置边框颜色为black renderer.setWallPaint(Color.gray); //设置wall的颜色为gray renderer .setItemLabelGenerator(new StandardCategoryItemLabelGenerator());//设置柱顶数据,API中居然没有StandardCategoryItemLabelGenerator这个类 //renderer.setItemLabelFont(new Font("黑体",Font.PLAIN,12));//设置柱顶数据字体 renderer.setItemLabelsVisible(true);//打开ItemLabel开关 plot.setRenderer(renderer);//将修改后的属性值保存到图中 plot.setForegroundAlpha(0.6f);//柱的透明度 return chart; } // 生成数据 public static CategoryDataset createDataset() ...{ double[][] data = new double[][] ...{ ...{ 672, 766, 223, 540, 126 }, ...{ 325, 521, 210, 340, 106 }, ...{ 332, 256, 523, 240, 526 } };// 设置数据 String[] rowKeys = ...{ "苹果", "梨子", "葡萄" };// 行标志 String[] columnKeys = ...{ "北京", "上海", "广州", "成都", "深圳" };// 列标志 CategoryDataset linedataset = DatasetUtilities.createCategoryDataset( rowKeys, columnKeys, data); // 建立数据集 return linedataset; } public static void main(String[] args) ...{ BarCharts fjc = new BarCharts("柱状图"); fjc.pack(); RefineryUtilities.centerFrameOnScreen(fjc); fjc.setVisible(true); } }