JFreeChart 图表生成实例(饼图、柱状图、折线图、时序图)

import java.awt.BasicStroke;

import java.awt.Color;

import java.io.FileOutputStream;

import java.io.IOException;

import java.text.DateFormat;

import java.text.SimpleDateFormat;

import javax.servlet.ServletException;

import javax.servlet.ServletRequest;

import javax.servlet.ServletResponse;

import javax.servlet.http.HttpServlet;

import org.jfree.data.category.CategoryDataset;

import org.jfree.data.category.DefaultCategoryDataset;

import org.jfree.data.general.DefaultPieDataset;

import org.jfree.data.time.Day;

import org.jfree.data.time.TimeSeries;

import org.jfree.data.time.TimeSeriesCollection;

import org.jfree.data.xy.XYDataset;

import org.jfree.chart.*;

import org.jfree.chart.axis.CategoryAxis;

import org.jfree.chart.axis.DateAxis;

import org.jfree.chart.axis.DateTickUnit;

import org.jfree.chart.axis.DateTickUnitType;

import org.jfree.chart.axis.ValueAxis;

import org.jfree.chart.plot.CategoryPlot;

import org.jfree.chart.plot.PiePlot;

import org.jfree.chart.plot.PlotOrientation;

import org.jfree.chart.plot.XYPlot;

import org.jfree.chart.renderer.category.LineAndShapeRenderer;

import org.jfree.chart.servlet.ServletUtilities;

import org.jfree.chart.title.TextTitle;

import com.lowagie.text.Font;

import demo.BarChart3DDemo1;

/**

 * Servlet implementation class ChartDemoServlet

 */

public class ChartDemoServlet extends HttpServlet {

 private static final long serialVersionUID = 1L;

    public ChartDemoServlet() {

        super();

        // TODO Auto-generated constructor stub

    }

    public void service(ServletRequest request, ServletResponse response) throws ServletException, IOException{

     response.setContentType("image/jpeg");

     DefaultPieDataset data = getDataSet();

     CategoryDataset dataset = getDataSet2();

     DefaultCategoryDataset linedataset = createDataset();

  //JFreeChart chart = ChartFactory.createPieChart3D("水果产量图", data, true, false, false);

     /**

  JFreeChart chart = ChartFactory.createBarChart3D(

                "水果产量图", // 图表标题

                "水果", // 目录轴的显示标签

                "产量", // 数值轴的显示标签

                dataset, // 数据集

    PlotOrientation.VERTICAL, // 图表方向：水平、垂直

    true,  // 是否显示图例(对于简单的柱状图必须是 false)

    false, // 是否生成工具

    false  // 是否生成 URL 链接

    );

  **/

  JFreeChart chart = ChartFactory.createLineChart(

    "折线图", // 图表标题

       "时间", // 横轴显示标签

       "销售额(百万)", // 纵轴显示标签

       linedataset, // 数据集

       PlotOrientation.VERTICAL, // 图表方向：水平、垂直

       true, // 是否显示图例标识(对于简单的柱状图必须是 false)

       true, // 是否生成工具

       false // 是否生成 URL 链接

       );

     /*

  JFreeChart chart=ChartFactory.createTimeSeriesChart(

    "编程词典全国销量统计"

    , "销售月份"

    , "销量（份）"

    , createtimedata()

    , false

    , false

    , false

    );

  */

  /*

   * jfreechart1.0.13生成的图片中，中文都以方框形式显示,中文乱码解决如下（包括：饼图、柱状图、时序图、折线图）。

   */

  /***设置饼图相关属性***/

  /*

  PiePlot pieplot = (PiePlot) chart.getPlot();//获取饼图区域对象。

  pieplot.setLabelFont(new java.awt.Font("宋体",0,12));

  pieplot.setNoDataMessage("无数据显示"); //没有数据的时候显示的内容

  pieplot.setCircular(false);

  pieplot.setLabelGap(0.02D);

  TextTitle txtTitle = null;

  txtTitle = chart.getTitle();

  java.awt.Font font = new java.awt.Font("宋体", Font.BOLD, 16);

  txtTitle.setFont(font);//解决标题中文乱码

  chart.getLegend().setItemFont(font);

  chart.setBackgroundPaint(new Color(232,232,232));//设定背景

  pieplot.setBackgroundPaint(Color.white); //设定图表数据显示部分背景色

  */

  /***设置柱状图、折线图相关属性***/

  CategoryPlot catplot=chart.getCategoryPlot();  //获取柱状图、折线图区域对象。

  CategoryAxis domainAxis=catplot.getDomainAxis();

  catplot.setNoDataMessage("无数据显示");//没有数据的时候显示的内容

  //列表标题

  TextTitle txtTitle = null;

  txtTitle = chart.getTitle();

  txtTitle.setFont(new java.awt.Font("黑体",Font.BOLD,14));

  //水平底部列表

     domainAxis.setLabelFont(new java.awt.Font("黑体",Font.BOLD,14));

     //水平底部标题

     domainAxis.setTickLabelFont(new java.awt.Font("宋体",Font.BOLD,12));

     //垂直标题

     ValueAxis rangeAxis=catplot.getRangeAxis();//获取柱状

     rangeAxis.setLabelFont(new java.awt.Font("黑体",Font.BOLD,15));

     chart.getLegend().setItemFont(new java.awt.Font("黑体", Font.BOLD, 15));

     //获得renderer

     LineAndShapeRenderer lineAndShapeRenderer =(LineAndShapeRenderer)catplot.getRenderer();

     lineAndShapeRenderer.setShapesVisible(true); //series 点（即数据点）可见

     /*

     lineAndShapeRenderer.setSeriesStroke(0, new BasicStroke(2.0F, 1, 1, 1.0F, new float[] {

       10F, 6F

       }, 0.0F)); //这里是虚线，默认是直线

     */

  /***设置时序图相关属性***/

  /**

     XYPlot xyplot = (XYPlot) chart.getPlot();//获取时序图区域对象。

     //列表标题

  TextTitle txtTitle = null;

  txtTitle = chart.getTitle();

  txtTitle.setFont(new java.awt.Font("黑体",Font.BOLD,15));

     //纵轴字体

     xyplot.getRangeAxis().setLabelFont(new java.awt.Font("宋体", Font.BOLD, 12));

     //横轴框里的标题字体:显示图例

     //chart.getLegend().setItemFont(new java.awt.Font("宋体", Font.ITALIC, 12));

     //横轴列表字体

     xyplot.getDomainAxis().setTickLabelFont(new java.awt.Font("新宋体", 1, 12));

     //横轴小标题字体

     xyplot.getDomainAxis().setLabelFont(new java.awt.Font("新宋体", 1, 12));

     chart.setBackgroundPaint(new Color(252,175,134)); //设置背景色

     xyplot.setDomainGridlinesVisible(false);  //设置网格不显示

     //获取时间轴对象

     DateAxis dateAxis = (DateAxis) xyplot.getDomainAxis();

     //dateAxis.setLabelFont(new java.awt.Font("黑体", Font.ITALIC , 18));   //设置时间轴字体

     dateAxis.setLowerMargin(0.0);//设置时间轴上显示的最小值

     DateFormat format = new SimpleDateFormat("MM月份");   //创建日期格式对象

     //创建DateTickUnit对象

     DateTickUnit dtu = new DateTickUnit(DateTickUnitType.DAY,29,format);

     dateAxis.setTickUnit(dtu);//设置日期轴的日期标签

     **/

     //chart.getTitle().setFont(new java.awt.Font("宋体", Font.BOLD, 15));

     //chart.getLegend().setItemFont(new java.awt.Font("黑体", Font.BOLD, 15));

     //CategoryAxis domainAxis = plot.getDomainAxis();

     /*------设置X轴坐标上的文字-----------*/

     //domainAxis.setTickLabelFont(new java.awt.Font("黑体", Font.PLAIN, 11));

     /*------设置X轴的标题文字------------*/

     //domainAxis.setLabelFont(new java.awt.Font("宋体", Font.PLAIN, 12));

     //NumberAxis numberaxis = (NumberAxis) plot.getRangeAxis();

     /*------设置Y轴坐标上的文字-----------*/

     //numberaxis.setTickLabelFont(new java.awt.Font("黑体", Font.PLAIN, 12));

     /*------设置Y轴的标题文字------------*/

     //numberaxis.setLabelFont(new java.awt.Font("黑体", Font.PLAIN, 12));

  FileOutputStream fos_jpg=null;

  try{

   fos_jpg=new FileOutputStream("D:\\ok_bing.jpg");

   /*

    * 第二个参数如果为100，会报异常：

    * java.lang.IllegalArgumentException: The 'quality' must be in the range 0.0f to 1.0f

    * 限制quality必须小于等于1,把100改成 0.1f。

    */

   ChartUtilities.writeChartAsJPEG(fos_jpg, 0.99f, chart, 600, 300, null);

  }catch(Exception e){

   System.out.println("[e]"+e);

  }finally{

   try{

    fos_jpg.close();

   }catch(Exception e){

   }

  }

    }

 /**

  * 获取一个演示用的简单数据集对象

  * @return

  */

    //生成饼图数据

 private static DefaultPieDataset getDataSet() {

  DefaultPieDataset dataset = new DefaultPieDataset();

  dataset.setValue("苹果",100);

  dataset.setValue("梨子",200);

  dataset.setValue("葡萄",300);

  dataset.setValue("香蕉",400);

  dataset.setValue("荔枝",500);

  return dataset;

 }

 //生成柱状图数据

 private static CategoryDataset getDataSet2() {

  DefaultCategoryDataset dataset = new DefaultCategoryDataset();

        dataset.addValue(100, "北京", "苹果");

        dataset.addValue(100, "上海", "苹果");

        dataset.addValue(100, "广州", "苹果");

        dataset.addValue(200, "北京", "梨子");

        dataset.addValue(200, "上海", "梨子");

        dataset.addValue(200, "广州", "梨子");

        dataset.addValue(300, "北京", "葡萄");

        dataset.addValue(300, "上海", "葡萄");

        dataset.addValue(300, "广州", "葡萄");

        dataset.addValue(400, "北京", "香蕉");

        dataset.addValue(400, "上海", "香蕉");

        dataset.addValue(400, "广州", "香蕉");

        dataset.addValue(500, "北京", "荔枝");

        dataset.addValue(500, "上海", "荔枝");

        dataset.addValue(500, "广州", "荔枝");

        return dataset;

 }

 //生成折线图数据

  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";

   String type4 = "4月";

   String type5 = "5月";

   linedataset.addValue(0.0, series1, type1);

   linedataset.addValue(4.2, series1, type2);

   linedataset.addValue(3.9, series1, type3);

   linedataset.addValue(3.2, series1, type4);

   linedataset.addValue(3.0, series1, type5);

   linedataset.addValue(1.0, series2, type1);

   linedataset.addValue(5.2, series2, type2);

   linedataset.addValue(7.9, series2, type3);

   linedataset.addValue(8.9, series2, type4);

   linedataset.addValue(9.2, series2, type5);

   linedataset.addValue(2.0, series3, type1);

   linedataset.addValue(9.2, series3, type2);

   linedataset.addValue(8.9, series3, type3);

   linedataset.addValue(9.9, series3, type4);

   linedataset.addValue(10.9, series3, type5);

   return linedataset;

  }

 //生成时序图数据

  public static XYDataset createtimedata() {

  //实例化TimeSeries对象

   TimeSeries timeseries = new TimeSeries("Data");

   Day day = new Day(1, 1, 2008);  //实例化Day

   double d = 3000D;//添加一年365天的数据

   for (int i = 0; i < 365; i++) {

    d = d + (Math.random() - 0.5) * 10; //创建随机数据

    timeseries.add(day, d); //向数据集合中添加数据

    day = (Day) day.next();

   }

   //创建TimeSeriesCollection集合对象

   TimeSeriesCollection timeSeriesCollection =new TimeSeriesCollection(timeseries);

   //返回数据集合对象

   return timeSeriesCollection;

  }

}