jfreechart

1: 下载相关jar  官方网站http://www.jfree.org/jfreechart/
   下载地址     http://sourceforge.net/project/downloading.php?group_id=15494&use_mirror=nchc&filename=jfreechart-1.0.11.zip&69154889

 

2： 基于web应用的报表操作 在web.xml文件中 添加DisplayChart 

 <servlet>
  <servlet-name>DisplayChart</servlet-name>
  <servlet-class>org.jfree.chart.servlet.DisplayChart</servlet-class>
 </servlet>
 <servlet-mapping>
  <servlet-name>DisplayChart</servlet-name>
  <url-pattern>/servlet/DisplayChart</url-pattern>
 </servlet-mapping>
 DisplayChart 的作用 得到报表图片的地址。删除临时的报表图片

3:  如果组织数据  如何生成报表  对中文问题的处理  和  字体的设计

    3-1 创建一个servlet来生成报表
    3-2 组织数据  组织数据的方法 (饼形图的数据对象)

 // 生成饼图数据集对象
 public static PieDataset createDataset() {
  DefaultPieDataset defaultpiedataset = new DefaultPieDataset();
  defaultpiedataset.setValue("java", 80.02D);
  defaultpiedataset.setValue("c",    10.23D);
  defaultpiedataset.setValue(".net", 40.02D);
  defaultpiedataset.setValue("php",  30.02D);
  defaultpiedataset.setValue("市场",  5.11D);
  return defaultpiedataset;
 }
     3-3 组织数据  组织数据的方法 (饼形图的数据对象)
        // 生成图表主对象JFreeChart
 public static JFreeChart createChart(PieDataset piedataset) {
  // 定义图表对象
  JFreeChart jfreechart = ChartFactory.createPieChart("菏泽学院 08届毕业生就业职位饼形图", piedataset, true, false, true);
  // 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
  jfreechart.getTitle().setFont(new Font("SansSerif", Font.BOLD, 12));
  jfreechart.getLegend().setItemFont(new Font("SansSerif", Font.BOLD, 12));
  return jfreechart;
 }

    3-4 构造web上显示的图片 得到图片名称 设置图片大小
       public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
         //使用jfreechart 提供的ServletUtilities.saveChartAsJPEG方法 创建 图片对象 该方法返回图片的名称
         String filename = ServletUtilities.saveChartAsJPEG(createChart(createDataset()), 500, 300, null, request.getSession());
         //把名字放入request.setAttribute 中
  request.setAttribute("filename", filename);
  //跳转
  request.getRequestDispatcher("index.jsp").forward(request, response);
 }
4:  在jsp页面上显示报表图片
    <img src="servlet/DisplayChart?filename=<%=request.getAttribute("filename")%>"/>
jfreechart 典型 的图形样例代码
-----------------------------------------------------------------------------------------

import java.awt.Color;
import java.awt.Font;
import java.awt.Rectangle;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.AxisLocation;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.labels.PieToolTipGenerator;
import org.jfree.chart.labels.StandardPieToolTipGenerator;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PiePlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.RingPlot;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.category.BarRenderer;
import org.jfree.chart.renderer.category.LineAndShapeRenderer;
import org.jfree.chart.renderer.category.StackedBarRenderer;
import org.jfree.chart.renderer.category.StackedBarRenderer3D;
import org.jfree.chart.renderer.xy.DefaultXYItemRenderer;
import org.jfree.chart.renderer.xy.XYItemRenderer;
import org.jfree.util.TableOrder;

/** *//**
 * @author xum @ 2006/09/14
 * neusoft
 * TODO To change the template for this generated type comment go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
public class ChartCreater ...{
 
 /** *//**
  * 2D柱图
  * @return
  */
 public static JFreeChart createCategoryChart()...{
 
  JFreeChart chart = ChartFactory.createBarChart(
          "Bar2D",     // 图表名称
    "Category",  // X轴名称
    "Value",     // Y轴名称
          ChartDataSet.createCategoryDataset(),   // 数据集
          PlotOrientation.VERTICAL,  // 图表方向
          true,   // 图例
    true,   // Tooltips
    false);  //URL
 
  CategoryPlot plot = (CategoryPlot)chart.getPlot();  
    
     setCategoryPlot(plot);
 
  return chart;
 }
 
 /** *//**
  * 3D柱图
  * @return
  */
 public static JFreeChart createCategoryChart3D()...{
 
  JFreeChart chart = ChartFactory.createBarChart3D(
          "Bar2D", "Category", "Value",
          ChartDataSet.createCategoryDataset(),
          PlotOrientation.VERTICAL,
          true, true, false); 
 
  CategoryPlot plot = (CategoryPlot)chart.getPlot();  
    
     setCategoryPlot(plot);
 
  return chart;
 }
 
 /** *//**
  * 2D条形图
  * @return
  */
 public static JFreeChart createBarChart()...{
 
  JFreeChart chart = ChartFactory.createBarChart(
          "Bar2D", "Category", "Value",
          ChartDataSet.createCategoryDataset(),
          PlotOrientation.HORIZONTAL,
          true, true, false); 
 
  CategoryPlot plot = (CategoryPlot)chart.getPlot();  
    
     setCategoryPlot(plot);
    
     plot.setRangeAxisLocation(AxisLocation.BOTTOM_OR_LEFT);
 
  return chart;
 }
 
 /** *//**
  * 3D条形图
  * @return
  */
 public static JFreeChart createBarChart3D()...{
 
  JFreeChart chart = ChartFactory.createBarChart3D(
          "Bar2D", "Category", "Value",
          ChartDataSet.createCategoryDataset(),
          PlotOrientation.HORIZONTAL,
          true, true, false); 
 
  CategoryPlot plot = (CategoryPlot)chart.getPlot();  
    
     setCategoryPlot(plot);
    
     plot.setRangeAxisLocation(AxisLocation.BOTTOM_OR_LEFT);
 
  return chart;
 }
 
 /** *//**
  * 2D线图
  * @return
  */
 public static JFreeChart createLintChart()...{
 
  JFreeChart chart = ChartFactory.createLineChart(
          "Bar2D", "Category", "Value",
          ChartDataSet.createCategoryDataset(),
          PlotOrientation.VERTICAL,
          true, true, false); 
 
  CategoryPlot plot = (CategoryPlot)chart.getPlot();  
    
     setCategoryPlot(plot);
    
     LineAndShapeRenderer lineAndShapeRenderer = (LineAndShapeRenderer) plot.getRenderer();
     lineAndShapeRenderer.setShapesVisible(true);
     lineAndShapeRenderer.setShapesFilled(true);
 
  return chart;
 }
 
 /** *//**
  * 3D线图
  * @return
  */
 public static JFreeChart createLintChart3D()...{
 
  JFreeChart chart = ChartFactory.createLineChart3D(
          "Bar2D", "Category", "Value",
          ChartDataSet.createCategoryDataset(),
          PlotOrientation.VERTICAL,
          true, true, false); 
 
  CategoryPlot plot = (CategoryPlot)chart.getPlot();  
    
     setCategoryPlot(plot);
 
  return chart;
 }
 
 /** *//**
  * 面积图
  * @return
  */
 public static JFreeChart createAreaChart()...{
  JFreeChart chart = ChartFactory.createAreaChart(
          "Area", "Category", "Value",
          ChartDataSet.createCategoryDataset(),
          PlotOrientation.VERTICAL,
          true, true, false); 
 
  CategoryPlot plot = (CategoryPlot)chart.getPlot();  
    
     setCategoryPlot(plot);
 
  return chart;
 }
 
 /** *//**
  * 瀑布图
  * @return
  */
 public static JFreeChart createWaterfallChart()...{
  JFreeChart chart = ChartFactory.createWaterfallChart(
          "WaterfallChart", "Category", "Value",
          ChartDataSet.createCategoryDataset(),
          PlotOrientation.VERTICAL,
          true, true, false); 
 
  CategoryPlot plot = (CategoryPlot)chart.getPlot();  
    
     setCategoryPlot(plot);
 
  return chart;
 }
 
 /** *//**
  * 2D饼图
  * @return
  */
 public static JFreeChart createPieChart()...{
  JFreeChart chart = ChartFactory.createPieChart(
    "PieChart",
    ChartDataSet.createPieDataset(),
          true, true, false);
     
      PiePlot piePlot = (PiePlot) chart.getPlot();
    
      piePlot.setCircular(false);
      piePlot.setLabelGap(0.02);  
           
      return chart;
 }
 
 /** *//**
  * 3D饼图
  * @return
  */
 public static JFreeChart createPieChart3D()...{
  JFreeChart chart = ChartFactory.createPieChart3D(
    "PieChart3D",
    ChartDataSet.createPieDataset(),
          true, true, false);
     
      PiePlot piePlot = (PiePlot) chart.getPlot();
    
      piePlot.setCircular(false);
      piePlot.setLabelGap(0.02);
     
     
           
      return chart;
 }
 
   /** *//**
    * 复合饼图
    * 12
    */
   public static JFreeChart createMultiplePieChart()...{
     TableOrder order = TableOrder.BY_ROW;    
//     TableOrder order = TableOrder.BY_COLUMN;
    
     JFreeChart chart = ChartFactory.createMultiplePieChart("MultiplePieChart",
       ChartDataSet.createCategoryDataset(),
                        order, true, true, false);
    
     return chart;
   }
  
   /** *//**
    * 复合饼图3D
    * 12
    */
   public static JFreeChart createMultiplePieChart3D()...{
     TableOrder order = TableOrder.BY_ROW;    
//     TableOrder order = TableOrder.BY_COLUMN;
    
     JFreeChart chart = ChartFactory.createMultiplePieChart3D("MultiplePieChart3D",
       ChartDataSet.createCategoryDataset(),
                        order, true, true, false);
    
     return chart;
   }
  
   /** *//**
    * 环形图
    */
   public static JFreeChart createRingChart()...{
     JFreeChart chart = ChartFactory.createRingChart(
         "RingChart",
         ChartDataSet.createPieDataset(),
         true, true, false);
    
     RingPlot ringPlot = (RingPlot) chart.getPlot();
    
     ringPlot.setBackgroundAlpha(1.0f);
     ringPlot.setCircular(false);
     ringPlot.setLabelGap(0.02);
    
     return chart;
   }
  
   /** *//**
    * 散点图
    * 40
    */
   public static JFreeChart createScatterPlot()...{
     JFreeChart chart = ChartFactory.createScatterPlot(
         "ScatterPlot", "Categary", "Value",
         ChartDataSet.createXYSeriesCollection(),
         PlotOrientation.VERTICAL,
         true, true, false);
    
     XYPlot xyPlot = chart.getXYPlot();
    
     setXYSeriesPlot(xyPlot);
    
     return chart;
   }
  
   /** *//**
    * 组织图
    */
   public static JFreeChart createHistogram()...{
     JFreeChart chart = ChartFactory.createHistogram(
         "Histogram", "Categary", "Value",
         ChartDataSet.createXYSeriesCollection(), 
         PlotOrientation.VERTICAL,
         true, true, false);
    
     XYPlot xyPlot = chart.getXYPlot();
    
     setXYSeriesPlot(xyPlot);
    
     return chart;
   }
  
   /** *//**
    * 数据点阶梯图
    * 33
    */
   public static JFreeChart createXYStepChart()...{
     JFreeChart chart = ChartFactory.createXYStepChart(
       "XYStepChart", "Categary", "Value",
          ChartDataSet.createXYSeriesCollection(), 
         PlotOrientation.VERTICAL,
         true, true, false);
    
     XYPlot xyPlot = chart.getXYPlot();
    
     setXYSeriesPlot(xyPlot);
    
     return chart;
   }
  
   /**//*
    * 堆积柱状图
    * 01
    */
   public static JFreeChart createStackedCategoryChart()...{
     JFreeChart chart = ChartFactory.createStackedBarChart(
       "StackedCategoryChar", "Categary", "Value",
          ChartDataSet.createCategoryDataset(), 
         PlotOrientation.VERTICAL,
         true, true, false);
    
     CategoryPlot plot = (CategoryPlot)chart.getPlot();  
    
     setCategoryPlot(plot);
    
     return chart;
   }
  
   /**//*
    * 堆积柱状图3D
    * 04
    */
   public static JFreeChart createStackedCategoryChart3D()...{
     JFreeChart chart = ChartFactory.createStackedBarChart3D(
       "StackedCategoryChar3D", "Categary", "Value",
          ChartDataSet.createCategoryDataset(),
         PlotOrientation.VERTICAL,
         true, true, false);
    
     CategoryPlot plot = (CategoryPlot)chart.getPlot();  
    
     setCategoryPlot(plot);
    
     return chart;
   }
  
   /**//*
    * 堆积条形图
    * 21
    */
   public static JFreeChart createStackedBarChart()...{
     JFreeChart chart = ChartFactory.createStackedBarChart(
       "StackedBarChart", "Categary", "Value",
          ChartDataSet.createCategoryDataset(),
         PlotOrientation.HORIZONTAL,
         true, true, false);
    
     CategoryPlot plot = (CategoryPlot)chart.getPlot();  
    
     setCategoryPlot(plot);
    
     plot.setRangeAxisLocation(AxisLocation.BOTTOM_OR_LEFT);   
    
     return chart;
   }
  
   /**//*
    * 堆积条形图3D
    * 23
    */
   public static JFreeChart createStackedBarChart3D()...{
     JFreeChart chart = ChartFactory.createStackedBarChart3D(
       "StackedBarChart3D", "Categary", "Value",
          ChartDataSet.createCategoryDataset(),
         PlotOrientation.HORIZONTAL,
         true, true, false);
    
     CategoryPlot plot = (CategoryPlot)chart.getPlot();  
    
     setCategoryPlot(plot);
    
     plot.setRangeAxisLocation(AxisLocation.BOTTOM_OR_LEFT); 
    
     return chart;
   }
  
   /**//*
    * 堆积面积图
    * 53
    */
   public static JFreeChart createStackedAreaChart()...{
     JFreeChart chart = ChartFactory.createStackedAreaChart(
       "StackedAreaChart", "Categary", "Value",
          ChartDataSet.createCategoryDataset(),
         PlotOrientation.VERTICAL,
         true, true, false);
    
     CategoryPlot plot = (CategoryPlot)chart.getPlot();  
    
     setCategoryPlot(plot);
    
     return chart;
   }
  
   /**//*
    * XY数据点面积图
    * 52
    */
   public static JFreeChart createXYAreaChart()...{
     JFreeChart chart = ChartFactory.createXYAreaChart(
       "XYAreaChart", "Categary", "Value",
          ChartDataSet.createXYSeriesCollection(),
         PlotOrientation.VERTICAL,
         true, true, false);
    
     XYPlot xyPlot = chart.getXYPlot();
    
     setXYSeriesPlot(xyPlot);
    
     return chart;
   }
  
  
   /**//*
    * XY数据点阶梯面积图
    * 51
    */
   public static JFreeChart createXYStepAreaChart()...{
     JFreeChart chart = ChartFactory.createXYStepAreaChart(
       "XYStepAreaChart", "Categary", "Value",
          ChartDataSet.createXYSeriesCollection(),
         PlotOrientation.VERTICAL,
         true, true, false);
    
     XYPlot xyPlot = chart.getXYPlot();
    
     setXYSeriesPlot(xyPlot);
    
     return chart;
   }
  
   /**//*
    * XY数据点折线图
    * 32
    */
   public static JFreeChart createXYLineChart()...{
     JFreeChart chart = ChartFactory.createXYLineChart(
       "XYLineChart", "Categary", "Value",
          ChartDataSet.createXYSeriesCollection(),
         PlotOrientation.VERTICAL,
         true, true, false);
    
     XYPlot xyPlot = chart.getXYPlot();
    
     setXYSeriesPlot(xyPlot);
    
     XYItemRenderer lineAndShapeRenderer = (XYItemRenderer) xyPlot.getRenderer();     
    
     return chart;
   }
  
   /**//*
    * XY数据点柱状图
    * 05
    */
   public static JFreeChart createXYBarChart()...{
     JFreeChart chart = ChartFactory.createXYBarChart(
       "XYBarChart", "Categary", true,  "Value",
          ChartDataSet.createXYSeriesCollection(),
         PlotOrientation.VERTICAL,
         true, true, false);
    
     XYPlot xyPlot = chart.getXYPlot();
    
     setXYSeriesPlot(xyPlot);
    
     return chart;
   }
  
   /**//*
    * 气泡图
    */
   public static JFreeChart createBubbleChart()...{
     JFreeChart chart = ChartFactory.createBubbleChart(
       "BubbleChart", "Categary", "Value",
       ChartDataSet.createDefaultXYZDataset(),
         PlotOrientation.VERTICAL,
         true, true, false);
    
     return chart;
   }
  
   /**//*
    * 数据点堆积面积图
    */
   public static JFreeChart createStackedXYAreaChart()...{
     JFreeChart chart = ChartFactory.createStackedXYAreaChart(
        "StackedXYAreaChart", "Categary", "Value",
        ChartDataSet.createDefaultTableXYDataset(),
         PlotOrientation.VERTICAL,
         true, true, false);
    
     XYPlot xyPlot = chart.getXYPlot();
    
     setXYSeriesPlot(xyPlot);
    
     return chart;
   }
  
   /**//*
    * 甘特图
    */
   public static JFreeChart createGanttChart()...{
     JFreeChart chart = ChartFactory.createGanttChart(
       "GanttChart", "Categary", "Value",
       ChartDataSet.createGanttDataset(),
         true, true, false);
    
     CategoryPlot plot = (CategoryPlot) chart.getPlot();
    
     setCategoryPlot(plot);
    
     return chart;
   }
  
   /**//*
    * 股价图
    */
   public static JFreeChart createHighLowChart()...{
     JFreeChart chart = ChartFactory.createHighLowChart(
       "HighLowChart", "Categary", "Value",
       ChartDataSet.createDefaultOHLCDataset(),
         false);
    
     return chart;
   }
  
   /**//*
    * 烛台图
    */
   public static JFreeChart createCandlestickChart()...{
     JFreeChart chart = ChartFactory.createCandlestickChart(
       "CandlestickChart", "Categary", "Value",
       ChartDataSet.createDefaultOHLCDataset(),
         false);
     return chart;
   }
   /**//*
    * 雷达图
    */
   private JFreeChart createPolarChart()...{
     JFreeChart chart = ChartFactory.createPolarChart(
         "PolarChart",
         ChartDataSet.createXYSeriesCollection(),
         true, true, false);
    
     return chart;
   }
  
   /**//*
    * 2D柱线图
    */
   public static JFreeChart createCombinedChart()...{
     JFreeChart chart = ChartFactory.createBarChart(
       "CombinedChart", "Categary", "Value",
       ChartDataSet.createCategoryDataset(),
         PlotOrientation.VERTICAL,
         true, true, false);  
    
     CategoryPlot plot = (CategoryPlot)chart.getPlot();  
    
     setCategoryPlot(plot);
    
     BarRenderer barRenderer = (BarRenderer) plot.getRenderer();
     barRenderer.setMaximumBarWidth(0.10D);
     barRenderer.setItemMargin(0.10D);
    
     NumberAxis numberAxis = new NumberAxis("");
     plot.setRangeAxis(1, numberAxis);
     plot.setRangeAxisLocation(1, AxisLocation.BOTTOM_OR_RIGHT);
     plot.setDataset(1, ChartDataSet.createCategoryDataset());
     plot.setRenderer(1, new LineAndShapeRenderer());   
     plot.mapDatasetToDomainAxis(1, 0);
     plot.mapDatasetToRangeAxis(1,1);    
    
     return chart;
   }
 
 
 
   /** *//**
    * 设置CategoryPlot
    * 坐标轴及网格属性设置
    * @param plot
    */
   private static void setCategoryPlot(CategoryPlot plot)...{
     plot.getDomainAxis().setVisible(true);
     plot.getDomainAxis().setLabelFont(new Font("宋体", Font.PLAIN, 12));
     plot.getDomainAxis().setLabelPaint(Color.BLACK);
     plot.getDomainAxis().setTickLabelFont(new Font("宋体", Font.PLAIN, 12));
     plot.getDomainAxis().setTickLabelPaint(Color.BLACK);
     plot.getDomainAxis().setTickLabelsVisible(true); 
    
     plot.getRangeAxis().setVisible(true);
     plot.getRangeAxis().setLabelFont(new Font("宋体", Font.PLAIN, 12));
     plot.getRangeAxis().setLabelPaint(Color.BLACK);
     plot.getRangeAxis().setTickLabelFont(new Font("宋体", Font.PLAIN, 12));
     plot.getRangeAxis().setTickLabelPaint(Color.BLACK);
     plot.getRangeAxis().setVerticalTickLabels(false);
     plot.getRangeAxis().setLabelAngle(0.0D);
    
    
     plot.setDomainGridlinesVisible(true);
     plot.setRangeGridlinesVisible(true);
   }
  
   /** *//**
    * 设置 XYPlot
    * @param plot
    */
   private static void setXYSeriesPlot(XYPlot plot)...{
     plot.getDomainAxis().setVisible(true);
     plot.getDomainAxis().setLabelFont(new Font("宋体", Font.PLAIN, 12));
     plot.getDomainAxis().setLabelPaint(Color.BLACK);
     plot.getDomainAxis().setTickLabelFont(new Font("宋体", Font.PLAIN, 12));
     plot.getDomainAxis().setTickLabelPaint(Color.BLACK);
     plot.getDomainAxis().setTickLabelsVisible(true); 
    
     plot.getRangeAxis().setVisible(true);
     plot.getRangeAxis().setLabelFont(new Font("宋体", Font.PLAIN, 12));
     plot.getRangeAxis().setLabelPaint(Color.BLACK);
     plot.getRangeAxis().setTickLabelFont(new Font("宋体", Font.PLAIN, 12));
     plot.getRangeAxis().setTickLabelPaint(Color.BLACK);
     plot.getRangeAxis().setVerticalTickLabels(false);
     plot.getRangeAxis().setLabelAngle(0.0D);
    
    
     plot.setDomainGridlinesVisible(true);
     plot.setRangeGridlinesVisible(true);
   }
 
}