JFreeChart学习

一.步骤:

  1. 创建数据集(准备数据)
  2. 根据数据集生成JFreeChart对象,并对其做相应的设置(标题,图例,x轴,Y轴,对象渲染等)
  3. 将JFreeChart对象输出到文件或者Servlet输出流等

二.具体举例

  • 饼状图

      示例代码:

package com.lky.experiment;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Toolkit;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.File;
import java.text.DecimalFormat;
import java.text.NumberFormat;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartFrame;
import org.jfree.chart.ChartUtilities;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.labels.StandardPieSectionLabelGenerator;
import org.jfree.chart.plot.PiePlot3D;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.data.general.PieDataset;

/**
 * @Title: allProductDistribution.java
 * @Package com.lky.experiment
 * @Description: 产品评论量分布
 * @author lky
 * @date 2015年11月18日 下午3:50:36
 * @version V1.0
 */
public class allProductDistribution {

    public void PieChart(String path) {
        PieDataset dataset = getDataSet();

        JFreeChart chart = ChartFactory.createPieChart3D("产品评论量分布图", dataset, true, true, false);
        chart.getLegend().setItemFont(new Font("宋体", Font.PLAIN, 12));// 设置图例字体样式
        chart.getTitle().setFont(new Font("黑体", Font.CENTER_BASELINE, 20));// 设置标题字体样式
        chart.setBackgroundPaint(Color.white);// 设置背景色为白色

        PiePlot3D plot = (PiePlot3D) chart.getPlot();// 图样式(饼状图)
        plot.setLabelFont(new Font("宋体", Font.PLAIN, 14));// 图中标签字体样式

        // 图片中显示百分比:默认方式
        // plot.setLabelGenerator(new
        // StandardPieSectionLabelGenerator(StandardPieToolTipGenerator.DEFAULT_TOOLTIP_FORMAT));
        // 自定义图片中显示百分比:自定义方式,{0} 表示选项, {1} 表示数值, {2} 表示所占比例 ,小数点后两位
        plot.setLabelGenerator(new StandardPieSectionLabelGenerator("{0}:{1}({2})", NumberFormat.getNumberInstance(), new DecimalFormat("0.000%")));

        // 自定义图例中显示百分比:自定义方式, {0} 表示选项, {1} 表示数值, {2} 表示所占比例
        plot.setLegendLabelGenerator(new StandardPieSectionLabelGenerator("{0}:{1}({2})"));

        // 指定图片的透明度(0.0-1.0)
        plot.setForegroundAlpha(1.0f);
        // 指定显示的饼图上圆形(false)还椭圆形(true)
        plot.setCircular(true);
        plot.setBackgroundAlpha(0.5f);// 背景色 透明度
        plot.setBackgroundPaint(new Color(255, 255, 204));// 设置柱图背景色(注意,系统取色的时候要使用16位的模式来查看颜色编码,这样比较准确)

        try {
            File file = new File(path);
            ChartUtilities.saveChartAsPNG(file, chart, 640, 480);// 把生成的图保存到文件中
        } catch (Exception e) {
            e.printStackTrace();
        }
        ChartPreview(chart);// 显示生成的图
    }

    /**
     * 
     * @Title getDataSet
     * @Description 获取饼图数据
     *
     */
    private PieDataset getDataSet() {
        DefaultPieDataset dataset = new DefaultPieDataset();
        dataset.setValue("0-300(条)", new Double(65));
        dataset.setValue("300-600(条)", new Double(4));
        dataset.setValue("600-900(条)", new Double(3));
        dataset.setValue("1200-1500(条)", new Double(2));
        dataset.setValue("2700-3000(条)", new Double(1));
        dataset.setValue("3000+(条)", new Double(17));
        dataset.setValue("0(条)", new Double(19));
        return dataset;
    }

    /**
     * @Title ChartPreview
     * @Description 预览图片
     *
     */
    private void ChartPreview(JFreeChart chart) {
        // ******************************//
        // * 将生成的报表放到预览窗口中
        // ******************************//
        final ChartFrame preview = new ChartFrame("评论统计信息", chart);
        preview.addWindowListener(new WindowAdapter() {
            public void windowClosing(final WindowEvent event) {
                preview.dispose();
            }
        });
        preview.pack();

        // 调整预览窗口的大小和位置,适合屏幕,并且居中
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        preview.setSize(screenSize.width, screenSize.height - 50);// 适合屏幕,50表示把工具栏要考虑在内
        Dimension frameSize = preview.getSize();
        if (frameSize.height > screenSize.height) {
            frameSize.height = screenSize.height;
        }
        if (frameSize.width > screenSize.width) {
            frameSize.width = screenSize.width;
        }
        preview.setLocation((screenSize.width - frameSize.width) / 2, (screenSize.height - frameSize.height - 50) / 2);
        preview.setVisible(true);// 显示报表预览窗口
    }

    public static void main(String args[]) {
        new allProductDistribution().PieChart("pie.png");
    }
}

pie

  • 柱状图

   示例代码:

package com.lky.experiment;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.RenderingHints;
import java.awt.Toolkit;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.File;
import java.util.ArrayList;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartFrame;
import org.jfree.chart.ChartUtilities;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.CategoryLabelPositions;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.labels.StandardCategoryItemLabelGenerator;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.DefaultCategoryDataset;

import com.lky.spider.pojos.dateData;

/**
* @Title: allProductMouthStatistics.java 
* @Package com.lky.experiment 
* @Description: 商城手机月统计量
* @author lky 
* @date 2015年11月18日 下午4:09:57 
* @version V1.0
 */
public class allProductMouthStatistics {

    public void mouthBarChart(String year, String path) {
        CategoryDataset dataset = getMouthCateDataSet(year);
        JFreeChart chart = ChartFactory.createBarChart3D(year+"年商城手机产品评论量", // 图表标题
                "月份", // 目录轴的显示标签
                "评论总数", // 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)
                true, // 是否生成工具
                true // 是否生成URL链接
                );
        
        chart.getTitle().setFont(new Font("黑体", Font.CENTER_BASELINE, 20));// 设置图标题的字体
        chart.getLegend().setItemFont(new Font("宋体", Font.PLAIN, 12));// 设置图例字体
        chart.getRenderingHints().put(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);

        CategoryPlot plot = chart.getCategoryPlot();// 获得图表区域对象
        plot.setRangeGridlinesVisible(true); // 设置横虚线可见
        plot.setRangeGridlinePaint(Color.gray); // 虚线色彩
        plot.setForegroundAlpha(1.0f);// 设置柱的透明度
        plot.setBackgroundAlpha(0.5f);// 背景色 透明度
        plot.setBackgroundPaint(new Color(255, 255, 204));// 设置柱图背景色(注意,系统取色的时候要使用16位的模式来查看颜色编码,这样比较准确)

        /** X 轴 设置 **/
        Font xfont = new Font("宋体", Font.PLAIN, 12);
        CategoryAxis domainAxis = plot.getDomainAxis();
        domainAxis.setLowerMargin(0.1);// 设置距离图片左端距离此时为10%
        domainAxis.setUpperMargin(0.1);// 设置距离图片右端距离此时为百分之10
        domainAxis.setCategoryLabelPositionOffset(10);// 图表横轴与标签的距离(10像素)
        domainAxis.setCategoryMargin(0.2);// 横轴标签之间的距离20%

        domainAxis.setLabelFont(xfont);// X轴标题
        domainAxis.setLabelPaint(Color.red);// 标题的颜色
        domainAxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 11));// X轴数值
        domainAxis.setTickLabelPaint(Color.BLUE); // X轴数值的字体颜色
        domainAxis.setCategoryLabelPositions(CategoryLabelPositions.STANDARD); // 横轴上的label斜显示
        plot.setDomainAxis(domainAxis);
        /** X 轴 **/

        /** Y 轴 设置 **/
        ValueAxis rangeAxis = plot.getRangeAxis();
        rangeAxis.setUpperMargin(0.1);// 设置最高的一个柱与图片顶端的距离(最高柱的10%)
        rangeAxis.setLabelFont(xfont);// Y轴标题
        rangeAxis.setLabelPaint(Color.red);// Y轴标题的颜色
        rangeAxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 11));// Y轴数值
        plot.setRangeAxis(rangeAxis);
        /** Y 轴 设置 **/

        /** 使用自定义的渲染器 **/
        CustomRenderer renderer = new CustomRenderer();
        renderer.setMaximumBarWidth(0.6);// 设置柱子宽度
        renderer.setMinimumBarLength(0.2);// 设置柱子高度
        renderer.setBaseOutlinePaint(Color.BLACK);// 设置柱子边框颜色
        renderer.setDrawBarOutline(true);// 设置柱子边框可见
        renderer.setItemMargin(0.2);// 设置每个地区所包含的平行柱的之间距离

        // 显示每个柱的数值,并修改该数值的字体属性
        renderer.setIncludeBaseInRange(true);
        renderer.setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator());
        renderer.setBaseItemLabelsVisible(true);
        plot.setRenderer(renderer);// 设置使用的渲染
        /** 使用自定义的渲染器 **/

        try {
            File file = new File(path);
            ChartUtilities.saveChartAsPNG(file, chart, 400, 300);// 把报表保存为文件
        } catch (Exception e) {
            String s = e.getLocalizedMessage();
            s = e.getMessage();
            System.out.println(s);
        }

        ChartPreview(chart);
    }

    private CategoryDataset getMouthCateDataSet(String year) {
        DefaultCategoryDataset dataset = new DefaultCategoryDataset();
        ArrayList<dateData> result = statistics.allMouthStatistics(year);

        for (dateData ss : result) {
            Integer count = ss.getCount();
            String ym = ss.getSdate();

            if (ym.substring(5, 7).equals("11")) {
                continue;
            }
            dataset.addValue(count, ym, ym);
//            System.out.println(count + "-------->" + ym);
        }
        return dataset;
    }

    /**
     * @Title ChartPreview
     * @Description 预览图片
     *
     */
    private void ChartPreview(JFreeChart chart) {
        // ******************************//
        // * 将生成的报表放到预览窗口中
        // ******************************//
        final ChartFrame preview = new ChartFrame("评论统计信息", chart);
        preview.addWindowListener(new WindowAdapter() {
            public void windowClosing(final WindowEvent event) {
                preview.dispose();
            }
        });
        preview.pack();

        // 调整预览窗口的大小和位置,适合屏幕,并且居中
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        preview.setSize(screenSize.width, screenSize.height - 50);// 适合屏幕,50表示把工具栏要考虑在内
        Dimension frameSize = preview.getSize();
        if (frameSize.height > screenSize.height) {
            frameSize.height = screenSize.height;
        }
        if (frameSize.width > screenSize.width) {
            frameSize.width = screenSize.width;
        }
        preview.setLocation((screenSize.width - frameSize.width) / 2, (screenSize.height - frameSize.height - 50) / 2);
        preview.setVisible(true);// 显示报表预览窗口
    }

    public static void main(String args[]) {
        new allProductMouthStatistics().mouthBarChart("2015", "2015.png");
    }

}

2014

  • 折线图

示例代码:

package com.lky.experiment;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Toolkit;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.File;
import java.util.ArrayList;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartFrame;
import org.jfree.chart.ChartUtilities;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.XYItemRenderer;
import org.jfree.chart.renderer.xy.XYSplineRenderer;
import org.jfree.data.xy.XYDataset;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;

import com.lky.spider.pojos.dateData;

public class hourShow {

    /**
     * @Title ChartPreview
     * @Description 预览图片
     *
     */
    private void ChartPreview(JFreeChart chart) {
        // ******************************//
        // * 将生成的报表放到预览窗口中
        // ******************************//
        final ChartFrame preview = new ChartFrame("评论量", chart);
        preview.addWindowListener(new WindowAdapter() {
            public void windowClosing(final WindowEvent event) {
                preview.dispose();
            }
        });
        preview.pack();

        // 调整预览窗口的大小和位置,适合屏幕,并且居中
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        preview.setSize(screenSize.width, screenSize.height - 50);// 适合屏幕,50表示把工具栏要考虑在内
        Dimension frameSize = preview.getSize();
        if (frameSize.height > screenSize.height) {
            frameSize.height = screenSize.height;
        }
        if (frameSize.width > screenSize.width) {
            frameSize.width = screenSize.width;
        }
        preview.setLocation((screenSize.width - frameSize.width) / 2, (screenSize.height - frameSize.height - 50) / 2);

        // 显示报表预览窗口

        preview.setVisible(true);
    }

    /**
    * @Title: XYSplineRendererGo 
    * @Description: 获取一段时间内一定时间粒度商城手机产品的评论量
    * @param tstart 起始时间
    * @param tend  结束时间
    * @param size  时间粒度
    * @param path   图片路径
     */
    public void XYSplineRendererHour(String tstart, String tend, int size, String path) {
        XYDataset dataset = getXYDataset(tstart, tend, size);

        JFreeChart chart = ChartFactory.createXYLineChart("("+tstart+":"+tend+")商城手机产品评论量", "小时", "评论量", dataset, PlotOrientation.VERTICAL, true, false, false);
        chart.getTitle().setFont(new Font("黑体", Font.CENTER_BASELINE, 20));// 设置图标题的字体
        chart.getLegend().setItemFont(new Font("宋体", Font.PLAIN, 12));// 设置图例字体
        
        XYPlot plot = (XYPlot) chart.getPlot();
        plot.setRangeGridlinesVisible(true); // 设置横虚线可见
        plot.setRangeGridlinePaint(Color.gray); // 虚线色彩
        plot.setForegroundAlpha(1.0f);// 设置柱的透明度
        plot.setBackgroundAlpha(0.5f);// 背景色 透明度
        plot.setBackgroundPaint(new Color(255, 255, 204));// 设置柱图背景色(注意,系统取色的时候要使用16位的模式来查看颜色编码,这样比较准确)
        
        Font xfont = new Font("宋体", Font.PLAIN, 12);
        ValueAxis domainAxis = plot.getDomainAxis();
        domainAxis.setLowerMargin(0.1);// 设置距离图片左端距离此时为10%
        domainAxis.setUpperMargin(0.1);// 设置距离图片右端距离此时为百分之10
        domainAxis.setLabelFont(xfont);// X轴标题
        domainAxis.setLabelPaint(Color.green);// X轴标题颜色
        domainAxis.setTickLabelFont(xfont);// X轴数值字体
        domainAxis.setTickLabelPaint(Color.BLUE); // X轴数值颜色

        NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
        rangeAxis.setUpperMargin(0.1);// 设置最高的一个柱与图片顶端的距离(最高柱的10%)
        rangeAxis.setLabelFont(xfont);// Y轴标题
        rangeAxis.setLabelPaint(Color.green); // Y轴标题颜色
        rangeAxis.setTickLabelFont(xfont);// Y轴数值字体
        rangeAxis.setTickLabelPaint(Color.BLUE);// Y轴数值颜色

        // NumberFormat numberformat = new DecimalFormat("00%");
        // rangeAxis.setNumberFormatOverride(numberformat);// 设置y轴以百分比方式显示

        // 平滑曲线
        XYItemRenderer renderer = new XYSplineRenderer();
        renderer.setBaseItemLabelPaint(Color.black);// 字体为黑色
        renderer.setBaseItemLabelsVisible(true);
        renderer.setBaseItemLabelFont(new Font("宋体", Font.PLAIN, 12));
        plot.setRenderer(renderer);

        try {
            File file = new File(path);
            ChartUtilities.saveChartAsPNG(file, chart, 400, 300);// 把报表保存为文件
        } catch (Exception e) {
            String s = e.getLocalizedMessage();
            s = e.getMessage();
            System.out.println(s);
        }
        ChartPreview(chart);
    }

    private XYSeriesCollection getXYDataset(String tstart, String tend, int size) {
        XYSeries dataSeries = new XYSeries("粒度"+size+"(h)");

        ArrayList<dateData> result = statistics.allHourStatistics(tstart, tend);
//        for (dateData ss : result) {
//            System.out.println(ss.getSdate());
//        }
        int[] _count = new int[20000];
        int index = -1;
        for (dateData ss : result) {
            _count[(++index) / size] += ss.getCount();
        }

        for (int i = 0; i <= index / size; ++i) {
            dataSeries.add(i + 1, _count[i]);
        }
        XYSeriesCollection xyDataset = new XYSeriesCollection();
        xyDataset.addSeries(dataSeries);
        return xyDataset;
    }

    public static void main(String args[]){
//        new hourShow().XYSplineRendererGo("2015-11-5","2015-11-6",2, "xy.png");
        new hourShow().XYSplineRendererHour("2014-11-5","2014-11-6",2, "xy1.png");
    }
}

xy1

  • 时间序列图

示例代码:

package com.lky.experiment;

import java.awt.Font;
import java.text.SimpleDateFormat;
import java.util.ArrayList;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.DateAxis;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.plot.XYPlot;
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 com.lky.spider.pojos.dateData;
import com.lky.spider.utils.TimeUtil;

@SuppressWarnings("deprecation")
public class dayShow {
    private ChartPanel frame1;
    private String sid;

    public dayShow(String sid ,String title) {
        this.sid=sid;
        XYDataset xydataset = createDataset();//数据集
        
        JFreeChart jfreechart = ChartFactory.createTimeSeriesChart(title+"---日统计图", "日期", "数量", xydataset, true, true, true);
        XYPlot xyplot = (XYPlot) jfreechart.getPlot();
        
        DateAxis dateaxis = (DateAxis) xyplot.getDomainAxis();
        dateaxis.setDateFormatOverride(new SimpleDateFormat("yyyy-MM"));
        dateaxis.setLabelFont(new Font("黑体", Font.BOLD, 14)); // 水平底部标题
         dateaxis.setTickLabelFont(new Font("宋体", Font.BOLD, 12)); // 垂直标题
        
         ValueAxis rangeAxis = xyplot.getRangeAxis();// 获取y轴
         rangeAxis.setLabelFont(new Font("黑体", Font.BOLD, 15));
        
        jfreechart.getLegend().setItemFont(new Font("黑体", Font.BOLD, 15));
        jfreechart.getTitle().setFont(new Font("宋体", Font.BOLD, 15));// 设置标题字体
        
        frame1 = new ChartPanel(jfreechart, true);
    }

    private  XYDataset createDataset() { // 这个数据集有点多,但都不难理解
        ArrayList<String> cleanList = statistics.cleanData(sid);
        TimeSeries timeseries1 = new TimeSeries("每天的评论数量", org.jfree.data.time.Day.class);
        ArrayList<dateData> info = statistics.getDayStatistics(cleanList);

        timeseries1.add(new Day(TimeUtil.ymdTDate(info.get(0).getSdate())), info.get(0).getCount());
        String nextday = TimeUtil.nextDay(info.get(0).getSdate());
        for (int i = 1; i < info.size();) {
            if (nextday.equals(info.get(i).getSdate())) {
                
                // 过滤评论数大于500的
                if (info.get(i).getCount() > 500) {
                    i++;
                    continue;
                }
                timeseries1.add(new Day(TimeUtil.ymdTDate(nextday)), info.get(i).getCount());
                i++;
            } else {
                timeseries1.add(new Day(TimeUtil.ymdTDate(nextday)), 0);
            }
            nextday = TimeUtil.nextDay(nextday);
        }

        TimeSeriesCollection timeseriescollection = new TimeSeriesCollection();
        timeseriescollection.addSeries(timeseries1);
        return timeseriescollection;
    }

    public ChartPanel getChartPanel() {
        return frame1;
    }
}
//获取某一个商品的日次评论量
    public static void getDayShow(String sid,String title){
        JFrame frame = new JFrame("日统计图");
        frame.setLayout(new GridLayout(2, 2, 10, 10));

        frame.add(new dayShow(sid,title).getChartPanel()); // 添加折线图
         frame.setBounds(50, 50, 800, 600);
        frame.setVisible(true);
        frame.setLocationRelativeTo(null);
        frame.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
    }

360截图-2724807

posted @ 2015-11-19 09:18  奋斗的珞珞  阅读(1802)  评论(0编辑  收藏  举报