1、添加依赖

<!-- https://mvnrepository.com/artifact/jfree/jcommon -->
<dependency>
	<groupId>jfree</groupId>
	<artifactId>jcommon</artifactId>
	<version>1.0.16</version>
</dependency>
<!-- https://mvnrepository.com/artifact/jfree/jfreechart -->
<dependency>
	<groupId>jfree</groupId>
	<artifactId>jfreechart</artifactId>
	<version>1.0.13</version>
</dependency>
2、生成图表图片工具类
package com.shucha.deveiface.biz.test;
 * @author tqf
 * @Description
 * @Version 1.0
 * @since 2022-06-06 15:32
import cn.hutool.core.collection.CollectionUtil;
import cn.hutool.core.util.StrUtil;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellType;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.jfree.chart.*;
import org.jfree.chart.axis.*;
import org.jfree.chart.block.BlockBorder;
import org.jfree.chart.labels.StandardCategoryItemLabelGenerator;
import org.jfree.chart.labels.StandardPieSectionLabelGenerator;
import org.jfree.chart.labels.StandardXYItemLabelGenerator;
import org.jfree.chart.plot.*;
import org.jfree.chart.renderer.category.*;
import org.jfree.chart.renderer.xy.CandlestickRenderer;
import org.jfree.chart.renderer.xy.XYBarRenderer;
import org.jfree.chart.renderer.xy.XYItemRenderer;
import org.jfree.chart.renderer.xy.XYSplineRenderer;
import org.jfree.chart.title.LegendTitle;
import org.jfree.chart.title.TextTitle;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.data.category.IntervalCategoryDataset;
import org.jfree.data.gantt.Task;
import org.jfree.data.gantt.TaskSeries;
import org.jfree.data.gantt.TaskSeriesCollection;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.data.general.SeriesException;
import org.jfree.data.time.Day;
import org.jfree.data.time.Second;
import org.jfree.data.time.TimeSeries;
import org.jfree.data.time.TimeSeriesCollection;
import org.jfree.data.time.ohlc.OHLCSeries;
import org.jfree.data.time.ohlc.OHLCSeriesCollection;
import org.jfree.data.xy.*;
import org.jfree.ui.RectangleEdge;
import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.*;
import java.text.NumberFormat;
import java.text.SimpleDateFormat;
import java.util.*;
import java.util.List;
import java.util.Map;
public class JfreeChartUtils {
    // 参考文章 https://www.jianshu.com/p/6c4f3832c396
     * 生成的图片存放地址
    public static String imagePath = "D://123//jfree";
    public static void main(String[] args) throws Exception {
        // 生成饼图
        testPie();
        // 生成折线图
        testLine();
        // 生成柱状图
        testBar();
        // 生成折线图 多条
        testCreateManyLineChart();
        // 生成3D柱状图
        bar3D();
        // 生成气泡图
        bubble();
        // 生成时序图
        sequenceDiagram();
        // 生成曲线图
        curve();
        // 生成环形图
        annular();
        // 生成区域图
        areaChart();
        // 生成气泡图2
        bubble2();
        // 生成分布图
        chartPanel();
        // 生成联合分类图 折线、柱状图
        chartPanel1();
        // 生成双轴图
        biaxial();
        // 生成甘特图
        createGanttChart();
        // 生成K线图
        kImage();
        // 生成柱状图-横向
        bar3DHx();
    public static void testPie(){
        //如 果不使用Font,中文将显示不出来
        Font font = new Font("新宋体", Font.BOLD, 15);
        String name[] = {"录播主机","编码器","摄像机","流转码服务器","腾讯服务器"};
        double value[] = {1000,700,600,400,150};
        // 创建数据：饼状图就是名称和值（比例）
        Map<String, Double> map=new HashMap<String, Double>();
        for (int i=0;i<name.length;i++) {
            map.put(name[i],value[i]);
        // 创建JFreeChart
        JFreeChart chart = createPieChart("故障设备类型比例", map, font);
        //在D盘目录下生成图片
        File p = new File(imagePath);
        if (!p.exists()) {
            p.mkdirs();
        String imageName = System.currentTimeMillis() + "_饼图" + ".jpeg";
        File file = new File(p.getPath() + "/" + imageName);
        try {
            if(file.exists()) {
                file.delete();
            ChartUtilities.saveChartAsJPEG(file, chart, 800, 600);
        } catch (IOException e) {
            e.printStackTrace();
    public static void testLine(){
        //如 果不使用Font,中文将显示不出来
        Font font = new Font("新宋体", Font.BOLD, 15);
        // 创建数据
        Map<String, Map<String, Double>> datas =new HashMap<String, Map<String,Double>>();
        String monthArray[] = {"一月","二月","三月","四月","五月","六月","七月","八月"};
        double value[]= {20,30,25,50,40,25,50,40};
        for (int i=0; i<monthArray.length;i++) {
            Map<String, Double> map =new HashMap<String, Double>();
            map.put("故障数量", value[i]);
            datas.put(monthArray[i],map);
        JFreeChart chart = createLineChart("故障数量-时间曲线", datas, "月份", "故障次数（次）", font);
        //在D盘目录下生成图片
        File p = new File(imagePath);
        if (!p.exists()) {
            p.mkdirs();
        String imageName = System.currentTimeMillis() + "_折线图" + ".jpeg";
        File file = new File(p.getPath() + "/" + imageName);
        try {
            if(file.exists()) {
                file.delete();
            ChartUtilities.saveChartAsJPEG(file, chart, 800, 600);
        } catch (IOException e) {
            e.printStackTrace();
    public static void testBar(){
        //如 果不使用Font,中文将显示不出来
        Font font = new Font("新宋体", Font.BOLD, 15);
        // 创建数据
        Map<String, Map<String, Double>> datas =new HashMap<String, Map<String,Double>>();
        String name[] = {"设备网络掉线","CPU利用率高","磁盘占用高","掉线频率","内存使用率","访问量"};
        double value[] = {1000,1300,1200,1524,1247,6587};
        for (int i =0;i<name.length;i++) {
            Map<String, Double> map = new HashMap<String, Double>();
            map.put("故障数", value[i]);
            datas.put(name[i], map);
        JFreeChart chart = createBarChart("故障类型比例",datas,"故障类型","数量单位（个）",font);
        //在D盘目录下生成图片
        File p = new File(imagePath);
        if (!p.exists()) {
            p.mkdirs();
        String imageName = System.currentTimeMillis() + "_柱状图" + ".jpeg";
        File file = new File(p.getPath() + "/" + imageName);
        try {
            if(file.exists()) {
                file.delete();
            ChartUtilities.saveChartAsJPEG(file, chart, 800, 600);
        } catch (IOException e) {
            e.printStackTrace();
    public static void testCreateManyLineChart(){
        String[] title = {"成功量","失败量","异常"};
        String[] xValue = {"2021-01","2021-02","2021-03","2021-04","2021-05"};
        // 绘图数据集
        DefaultCategoryDataset dataSet = new DefaultCategoryDataset();
        Random r = new Random();
        for (int i =0;i<title.length;i++) {
            for (int j=0;j<5;j++) {
                // 生成[0,10]区间的整数
                int value = r.nextInt(10) * 2;
                dataSet.setValue(value,title[i],xValue[j]);
        JFreeChart chart = createManyLineChart(dataSet);
        //在D盘目录下生成图片
        File p = new File(imagePath);
        if (!p.exists()) {
            p.mkdirs();
        String imageName = System.currentTimeMillis() + "_多条折线图" + ".jpeg";
        File file = new File(p.getPath() + "/" + imageName);
        try {
            if(file.exists()) {
                file.delete();
            ChartUtilities.saveChartAsJPEG(file, chart, 800, 600);
        } catch (IOException e) {
            e.printStackTrace();
    static void sortMap(Map<String, Map<String, Double>> param) {
        TreeMap<String,  Map<String, Double>> paramTreeMap = new TreeMap<>(param);
        System.out.println(paramTreeMap);
     * 生成饼图
     * @param title
     * @param data
     * @param font
     * @return
    public static JFreeChart createPieChart(String title, Map<String, Double> data, Font font) {
        try {
            Set<Map.Entry<String, Double>> set = data.entrySet();
            DefaultPieDataset pds = new DefaultPieDataset();
            Iterator iterator = set.iterator();
            Map.Entry entry;
            while (iterator.hasNext()) {
                entry = (Map.Entry) iterator.next();
                pds.setValue(entry.getKey().toString(), Double.parseDouble(entry.getValue().toString()));
            // 生成一个饼图的图表：显示图表的标题、组装的数据、是否显示图例、是否生成贴士以及是否生成URL链接
            JFreeChart chart = ChartFactory.createPieChart(title, pds, true, false, true);
            // 设置图片标题的字体
            chart.getTitle().setFont(font);
            // 得到图块,准备设置标签的字体
            PiePlot plot = (PiePlot) chart.getPlot();
            //设置分裂效果,需要指定分裂出去的key
//            plot.setExplodePercent("摄像机", 0.1);  分裂效果，可选
            // 设置标签字体
            plot.setLabelFont(font);
            // 设置图例项目字体
            chart.getLegend().setItemFont(font);
            // 设置开始角度
//            plot.setStartAngle(new Float(3.14f / 2f));  开始角度，意义不大
            //设置plot的前景色透明度
            plot.setForegroundAlpha(0.7f);
            //设置plot的背景色透明度
            plot.setBackgroundAlpha(0.0f);
            //设置标签生成器(默认{0})
            //{0}:key {1}:value {2}:百分比 {3}:sum
            plot.setLabelGenerator(new StandardPieSectionLabelGenerator("{0}({1})/{2}"));  // 一般在{1}后面加单位，如：{0}({1}次)/{2}
            //将内存中的图片写到本地硬盘
//            ChartUtilities.saveChartAsJPEG(new File("H:/a.png"), chart, 600, 300);
            // 标注位于上侧
            // chart.getLegend().setPosition(RectangleEdge.TOP);
            // 设置标注无边框
            chart.getLegend().setFrame(new BlockBorder(Color.WHITE));
            return chart;
        } catch (Exception e) {
            e.printStackTrace();
            return null;
     * 生成折线图
     * @param title
     * @param data
     * @param type
     * @param unit
     * @param font
     * @return
    public static JFreeChart createLineChart(String title, Map<String, Map<String, Double>> data, String type, String unit, Font font) {
        try {
            DefaultCategoryDataset ds = new DefaultCategoryDataset();
            Set<Map.Entry<String, Map<String, Double>>> set1 = data.entrySet();
            Iterator iterator1 = set1.iterator();
            Iterator iterator2;
            HashMap<String, Double> map;
            Set<Map.Entry<String, Double>> set2;
            Map.Entry entry1;
            Map.Entry entry2;
            while (iterator1.hasNext()) {
                entry1 = (Map.Entry) iterator1.next();
                map = (HashMap<String, Double>) entry1.getValue();
                set2 = map.entrySet();
                iterator2 = set2.iterator();
                while (iterator2.hasNext()) {
                    entry2 = (Map.Entry) iterator2.next();
                    ds.setValue(Double.parseDouble(entry2.getValue().toString()), entry2.getKey().toString(), entry1.getKey().toString());
            //创建折线图,折线图分水平显示和垂直显示两种
            // //2D折线图
            JFreeChart chart = ChartFactory.createLineChart(title, type, unit, ds, PlotOrientation.VERTICAL, true, true, true);
            // //3D折线图
            JFreeChart chart2 = ChartFactory.createLineChart3D(title, type, unit, ds, PlotOrientation.VERTICAL, true, true, false);
            //设置整个图片的标题字体
            chart.getTitle().setFont(font);
            //设置提示条字体
            font = new Font("宋体", Font.BOLD, 15);
            chart.getLegend().setItemFont(font);
            //得到绘图区
            CategoryPlot plot = (CategoryPlot) chart.getPlot();
            //得到绘图区的域轴(横轴),设置标签的字体
            plot.getDomainAxis().setLabelFont(font);
            // 设置背景透明度
            plot.setBackgroundAlpha(0.1f);
            // 设置网格横线颜色
            plot.setRangeGridlinePaint(Color.gray);
            // 设置网格横线大小
            plot.setDomainGridlineStroke(new BasicStroke(0.2F));
            plot.setRangeGridlineStroke(new BasicStroke(0.2F));
            //设置横轴标签项字体
            plot.getDomainAxis().setTickLabelFont(font);
            // 生成折线图上的数字
            //绘图区域(红色矩形框的部分)
            LineAndShapeRenderer lineAndShapeRenderer=(LineAndShapeRenderer)plot.getRenderer();
            lineAndShapeRenderer.setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator());
            //设置图表上的数字可见
            lineAndShapeRenderer.setBaseItemLabelsVisible(true);
            //设置图表上的数字字体
            lineAndShapeRenderer.setBaseItemLabelFont(new Font("宋体",Font.BOLD,15));
            //设置折线图拐角上的正方形
            //创建一个正方形
            Rectangle  shape=new Rectangle(4,4);
            lineAndShapeRenderer.setSeriesShape(0, shape);
            //设置拐角上图形可见
            lineAndShapeRenderer.setSeriesShapesVisible(0, true);
            /*// 获取显示线条的对象
            LineAndShapeRenderer lasp = (LineAndShapeRenderer) plot.getRenderer();
            // 设置拐点是否可见/是否显示拐点
            lasp.setBaseShapesVisible(true);
            // 设置拐点不同用不同的形状
            lasp.setDrawOutlines(true);
            // 设置线条是否被显示填充颜色
            lasp.setUseFillPaint(true);
            // 设置拐点颜色
            lasp.setBaseFillPaint(Color.blue);//蓝色*/
            //设置范围轴(纵轴)字体
            font = new Font("宋体", Font.BOLD, 18);
            plot.getRangeAxis().setLabelFont(font);
//            plot.setForegroundAlpha(1.0f);
            return chart;
        } catch (Exception e) {
            e.printStackTrace();
            return null;
     * 生成折线图 多条
     * @return
    public static JFreeChart createManyLineChart(DefaultCategoryDataset dataSet){
        //如果把createLineChart改为createLineChart3D就变为了3D效果的折线图
        JFreeChart  chart = ChartFactory.createLineChart("图表标题", "X轴标题", "Y轴标题", dataSet,
                PlotOrientation.VERTICAL, // 绘制方向
                true, // 显示图例
                true, // 采用标准生成器
                false // 是否生成超链接
        //如 果不使用Font,中文将显示不出来
        Font font = new Font("新宋体", Font.BOLD, 15);
        chart.getTitle().setFont(font); // 设置标题字体
        chart.getLegend().setItemFont(font);// 设置图例类别字体
        // chart.setBackgroundPaint();// 设置背景色
        //获取绘图区对象
        CategoryPlot plot = chart.getCategoryPlot();
        plot.setBackgroundPaint(Color.LIGHT_GRAY); // 设置绘图区背景色
        plot.setRangeGridlinePaint(Color.gray); // 设置水平方向背景线颜色
        // 设置背景透明度
        plot.setBackgroundAlpha(0.1f);
        // 设置网格横线颜色
        plot.setRangeGridlinePaint(Color.gray);
        // 设置网格横线大小
        plot.setDomainGridlineStroke(new BasicStroke(0.2F));
        plot.setRangeGridlineStroke(new BasicStroke(0.2F));
        plot.setRangeGridlinesVisible(true);// 设置是否显示水平方向背景线,默认值为true
        plot.setDomainGridlinePaint(Color.WHITE); // 设置垂直方向背景线颜色
        plot.setDomainGridlinesVisible(true); // 设置是否显示垂直方向背景线,默认值为false
        CategoryAxis domainAxis = plot.getDomainAxis();
        domainAxis.setLabelFont(font); // 设置横轴字体
        domainAxis.setTickLabelFont(font);// 设置坐标轴标尺值字体
        domainAxis.setLowerMargin(0.01);// 左边距 边框距离
        domainAxis.setUpperMargin(0.06);// 右边距 边框距离,防止最后边的一个数据靠近了坐标轴。
        domainAxis.setMaximumCategoryLabelLines(2);
        ValueAxis rangeAxis = plot.getRangeAxis();
        rangeAxis.setLabelFont(font);
        rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());//Y轴显示整数
        rangeAxis.setAutoRangeMinimumSize(1);   //最小跨度
        rangeAxis.setUpperMargin(0.18);//上边距,防止最大的一个数据靠近了坐标轴。
        rangeAxis.setLowerBound(0);   //最小值显示0
        rangeAxis.setAutoRange(false);   //不自动分配Y轴数据
        rangeAxis.setTickMarkStroke(new BasicStroke(1.6f));     // 设置坐标标记大小
        rangeAxis.setTickMarkPaint(Color.BLACK);     // 设置坐标标记颜色
        // 获取折线对象
        LineAndShapeRenderer renderer = (LineAndShapeRenderer) plot.getRenderer();
        BasicStroke realLine = new BasicStroke(1.8f); // 设置实线
        // 设置虚线
        float dashes[] = { 5.0f };
        BasicStroke brokenLine = new BasicStroke(2.2f, // 线条粗细
                BasicStroke.CAP_ROUND, // 端点风格
                BasicStroke.JOIN_ROUND, // 折点风格
                8f, dashes, 0.6f);
        for (int i = 0; i < dataSet.getRowCount(); i++) {
            if (i % 2 == 0) {
                renderer.setSeriesStroke(i, realLine); // 利用实线绘制
            } else {
                renderer.setSeriesStroke(i, brokenLine); // 利用虚线绘制
            // 生成折线图上的数字
            //绘图区域(红色矩形框的部分)
            renderer.setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator());
            //设置图表上的数字可见
            renderer.setBaseItemLabelsVisible(true);
            //设置图表上的数字字体
            renderer.setBaseItemLabelFont(new Font("宋体",Font.BOLD,15));
            //设置折线图拐角上的正方形
            //创建一个正方形
            Rectangle  shape=new Rectangle(4,4);
            renderer.setSeriesShape(0, shape);
            //设置拐角上图形可见
            renderer.setSeriesShapesVisible(0, true);
        plot.setNoDataMessage("无对应的数据，请重新查询。");
        plot.setNoDataMessageFont(font);//字体的大小
        plot.setNoDataMessagePaint(Color.RED);//字体颜色
        return chart;
     * 生成柱状图
     * @param title
     * @param data
     * @param type
     * @param danwei
     * @param font
     * @return
    public static JFreeChart createBarChart(String title,Map<String,Map<String,Double>> data,String type,String danwei,Font font){
        try {
            //种类数据集
            DefaultCategoryDataset ds = new DefaultCategoryDataset();
            //获取迭代器：
            Set<Map.Entry<String, Map<String, Double>>> set1 =  data.entrySet();
            Iterator iterator1= set1.iterator();
            Iterator iterator2;
            HashMap<String, Double> map;
            Set<Map.Entry<String,Double>> set2;
            Map.Entry entry1;
            Map.Entry entry2;
            while(iterator1.hasNext()){
                entry1=(Map.Entry) iterator1.next();
                map=(HashMap<String, Double>) entry1.getValue();
                set2=map.entrySet();
                iterator2=set2.iterator();
                while (iterator2.hasNext()) {
                    entry2= (Map.Entry) iterator2.next();
                    ds.setValue(Double.parseDouble(entry2.getValue().toString()), entry2.getKey().toString(), entry1.getKey().toString());
            //创建柱状图,柱状图分水平显示和垂直显示两种
            JFreeChart chart = ChartFactory.createBarChart(title, type, danwei, ds, PlotOrientation.VERTICAL, true, true, true);
            //设置整个图片的标题字体
            chart.getTitle().setFont(font);
            //设置提示条字体
            font = new Font("宋体", Font.BOLD, 15);
            chart.getLegend().setItemFont(font);
            //得到绘图区
            CategoryPlot plot = (CategoryPlot) chart.getPlot();
            //得到绘图区的域轴(横轴),设置标签的字体
            plot.getDomainAxis().setLabelFont(font);
            //获取X轴的对象
            // CategoryAxis categoryAxis = plot.getDomainAxis();
            // 设置X轴文本倾斜45度
            // categoryAxis.setCategoryLabelPositions(CategoryLabelPositions.UP_45);
            // 设置背景透明度
            plot.setBackgroundAlpha(0.1f);
            // 设置网格横线颜色
            plot.setRangeGridlinePaint(Color.gray);
            // 设置网格横线大小
            plot.setDomainGridlineStroke(new BasicStroke(0.2F));
            plot.setRangeGridlineStroke(new BasicStroke(0.2F));
            //设置横轴标签项字体
            plot.getDomainAxis().setTickLabelFont(font);
            // 设置柱状图柱子相关
            CategoryPlot categoryPlot = chart.getCategoryPlot();
            BarRenderer rendererBar = (BarRenderer) categoryPlot.getRenderer();
            // 柱子宽度
            rendererBar.setMaximumBarWidth(0.05);
            // 柱状图颜色
            rendererBar.setSeriesPaint(0, Color.decode("#005AB5"));
            // 设置柱子上显示值
            rendererBar.setBaseItemLabelsVisible(true);
            rendererBar.setSeriesItemLabelFont(0,font);
            //设置范围轴(纵轴)字体
            plot.getRangeAxis().setLabelFont(font);
            plot.setForegroundAlpha(1.0f);
            return chart;
        } catch (Exception e) {
            e.printStackTrace();
            return null;
     * 生成3D柱状图
    public static void bar3D() {
       /* final String fait = "菲亚特";
        final String audi = "奥迪";
        final String ford = "福特";
        final String speed = "速度";
        final String popular = "喜欢程度";
        final String mailage = "邮寄";
        final String userrating = "用户评价";
        final String safty = "安全性";
        final DefaultCategoryDataset dataset = new DefaultCategoryDataset( );
        dataset.addValue( 1.0 , fait , speed );
        dataset.addValue( 4.0 , fait , popular );
        dataset.addValue( 3.0 , fait , userrating );
        dataset.addValue( 5.0 , fait , mailage );
        dataset.addValue( 5.0 , fait , safty );
        dataset.addValue( 5.0 , audi , speed );
        dataset.addValue( 7.0 , audi , popular );
        dataset.addValue( 6.0 , audi , userrating );
        dataset.addValue( 10.0 , audi , mailage );
        dataset.addValue( 4.0 , audi , safty );
        dataset.addValue( 4.0 , ford , speed );
        dataset.addValue( 3.0 , ford , popular );
        dataset.addValue( 2.0 , ford , userrating );
        dataset.addValue( 3.0 , ford , mailage );
        dataset.addValue( 6.0 , ford , safty );*/
        // 行关键字
        String seriesArray[] = {"菲亚特","奥迪","福特"};
        // 列关键字
        String categoryArray[] = {"速度","喜欢程度","邮寄","用户评价","安全性","使用性"};
        // 对应的值
        int value[] = {310,489,512,589,359,402,501,200,308,580,418,315,480,381,264,185,209,302};
        // 创建分类数据集
        DefaultCategoryDataset dataset = new DefaultCategoryDataset();
        int data = 0;
        for (int i=0;i<3;i++) {
            for (int j = 0; j < 6; j++) {
                dataset.addValue(value[data], seriesArray[i], categoryArray[j]);
                data++;
        // 设置字体，去除中文乱码
        StandardChartTheme sct = new StandardChartTheme("CN");
        sct.setExtraLargeFont(new Font("宋体", Font.LAYOUT_LEFT_TO_RIGHT, 15));
        sct.setRegularFont(new Font("宋体", Font.LAYOUT_LEFT_TO_RIGHT, 15));
        sct.setLargeFont(new Font("宋体", Font.LAYOUT_LEFT_TO_RIGHT, 15));
        ChartFactory.setChartTheme(sct);
        JFreeChart chart = ChartFactory.createBarChart3D(
                "汽车使用统计",
                "",// 类别
                "", // 值
                dataset,
                PlotOrientation.VERTICAL,
                true, true, false);
        //得到绘图区
        CategoryPlot plot = (CategoryPlot) chart.getPlot();
        /*//获取X轴的对象
        // CategoryAxis categoryAxis = plot.getDomainAxis();
        // 设置X轴文本倾斜45度
        // categoryAxis.setCategoryLabelPositions(CategoryLabelPositions.UP_45);
        // 设置背景透明度
        plot.setBackgroundAlpha(0.1f);
        // 设置网格横线颜色
        plot.setRangeGridlinePaint(Color.gray);*/ // 注释的代码放开就是背景透明
        /* // 注释的是设置显示数值
        BarRenderer renderer = new BarRenderer();
        renderer.setBarPainter(new StandardBarPainter());// 取消渐变效果
        renderer.setShadowVisible(false);// 关闭倒影
        renderer.setDrawBarOutline(false); // 设置柱子边框可见
        renderer.setItemMargin(0.03); // 组内柱子间隔为组宽的10%
        renderer.setMaximumBarWidth(0.03);// 设置条形柱最大宽度
        renderer.setMinimumBarLength(0.03);// 设置条形柱最小宽度
        renderer.setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator());// 数据标签格式
        renderer.setBaseItemLabelsVisible(true);// 是否显示数据标签
        renderer.setSeriesPaint(0, Color.BLUE);
        plot.setRenderer(renderer);*/
        int width = 640;
        int height = 480;
        // 标注位于上侧
        chart.getLegend().setPosition(RectangleEdge.TOP);
        // 设置标注无边框
        chart.getLegend().setFrame(new BlockBorder(Color.WHITE));
        //在D盘目录下生成图片
        File p = new File(imagePath);
        if (!p.exists()) {
            p.mkdirs();
        String imageName = System.currentTimeMillis() + "_3D柱状图" + ".jpeg";
        File file = new File(p.getPath() + "/" + imageName);
        try {
            if(file.exists()) {
                file.delete();
            ChartUtilities.saveChartAsJPEG(file, chart, width, height);
        } catch (IOException e) {
            e.printStackTrace();
     * 生成气泡图
    public static void bubble() {
        DefaultXYZDataset defaultxyzdataset = new DefaultXYZDataset( );
        double ad[ ] = { 30 , 40 , 50 , 60 , 70 , 80 };
        double ad1[ ] = { 10 , 20 , 30 , 40 , 50 , 60 };
        double ad2[ ] = { 4 , 5 , 10 , 8 , 9 , 6 };
        double ad3[ ][ ] = { ad , ad1 , ad2 };
        defaultxyzdataset.addSeries( "系统1" , ad3 );
        JFreeChart jfreechart = ChartFactory.createBubbleChart(
                "年龄、体重和工作",
                "重量",
                "年龄",
                defaultxyzdataset,
                PlotOrientation.HORIZONTAL,
                true, true, false);
        XYPlot xyplot = ( XYPlot )jfreechart.getPlot();
        xyplot.setForegroundAlpha( 0.65F );
        XYItemRenderer xyitemrenderer = xyplot.getRenderer( );
        xyitemrenderer.setSeriesPaint( 0 , Color.blue );
        NumberAxis numberaxis = ( NumberAxis )xyplot.getDomainAxis( );
        numberaxis.setLowerMargin( 0.2 );
        numberaxis.setUpperMargin( 0.5 );
        NumberAxis numberAxis = ( NumberAxis )xyplot.getRangeAxis( );
        numberAxis.setLowerMargin( 0.8 );
        numberAxis.setUpperMargin( 0.9 );
        /*// 设置背景透明度
        xyplot.setBackgroundAlpha(0.1f);
        // 设置网格横线颜色
        xyplot.setRangeGridlinePaint(Color.gray);*/ // 注释的代码是设置背景透明度
        int width = 560;
        int height = 370;
        //在D盘目录下生成图片
        File p = new File(imagePath);
        if (!p.exists()) {
            p.mkdirs();
        String imageName = System.currentTimeMillis() + "_气泡图" + ".jpeg";
        File file = new File(p.getPath() + "/" + imageName);
        try {
            if(file.exists()) {
                file.delete();
            ChartUtilities.saveChartAsJPEG(file, jfreechart, width, height);
        } catch (IOException e) {
            e.printStackTrace();
     * 生成时序图
    public static void sequenceDiagram(){
        final TimeSeries series = new TimeSeries( "Random Data" );
        Second current = new Second();
        double value = 100.0;
        for ( int i = 0 ; i < 4000 ; i++ )
            try {
                value = value + Math.random( ) - 0.5;
                series.add( current , new Double( value ) );
                current = ( Second ) current.next( );
            } catch ( SeriesException e ) {
                System.err.println( "Error adding to series" );
        final XYDataset dataset=( XYDataset )new TimeSeriesCollection(series);
        JFreeChart timeChart = ChartFactory.createTimeSeriesChart(
                "计算测试",
                "秒数",
                "值",
                dataset,
                false,
                false,
                false);
        /*XYPlot xyplot = ( XYPlot )timeChart.getPlot( );
        // 设置背景透明度
        xyplot.setBackgroundAlpha(0.1f);
        // 设置网格横线颜色
        xyplot.setRangeGridlinePaint(Color.gray);*/ // 注释的代码是设置背景透明度
        int width = 560;
        int height = 370;
        //在D盘目录下生成图片
        File p = new File(imagePath);
        if (!p.exists()) {
            p.mkdirs();
        String imageName = System.currentTimeMillis() + "_时序图" + ".jpeg";
        File file = new File(p.getPath() + "/" + imageName);
        try {
            if(file.exists()) {
                file.delete();
            ChartUtilities.saveChartAsJPEG(file, timeChart, width, height);
        } catch (IOException e) {
            e.printStackTrace();
     * 生成曲线图
    public static void curve(){
        //如 果不使用Font,中文将显示不出来
        Font font = new Font("宋体", Font.BOLD, 25);
        // 数据
        XYSeries series = new XYSeries("2020年");
        series.add(01, 3542);
        series.add(02, 3692);
        series.add(03, 8542);
        series.add(04, 5742);
        XYSeries series1 = new XYSeries("2021年");
        series1.add(01, 1242);
        series1.add(02, 2612);
        series1.add(03, 1942);
        series1.add(04, 4612);
        XYSeriesCollection xySeriesCollection = new XYSeriesCollection();
        xySeriesCollection.addSeries(series);
        xySeriesCollection.addSeries(series1);
        StandardChartTheme standardChartTheme = new StandardChartTheme("CN"); // 创建主题样式
        standardChartTheme.setExtraLargeFont(font); // 设置标题字体
        standardChartTheme.setRegularFont(font); // 设置图例的字体
        standardChartTheme.setLargeFont(font); // 设置轴向的字体
        standardChartTheme.setChartBackgroundPaint(Color.WHITE);// 设置主题背景色
        ChartFactory.setChartTheme(standardChartTheme);// 应用主题样式
        // 定义图表对象 图表的标题-饼形图的数据集对象-是否显示图列-是否显示提示文-是否生成超链接
        JFreeChart chart = ChartFactory.createXYLineChart("年度绩效", "季度", "销售额", xySeriesCollection,
                PlotOrientation.VERTICAL, true, true, false);
        // chart.setTitle(new TextTitle(title[0], new Font("宋书", Font.BOLD, 64)));// 重新设置标题
        // chart.removeLegend();// 是否移除图例
        XYPlot plot = (XYPlot)chart.getPlot(); // 获得图表显示对象
        plot.setOutlineVisible(false);// 是否显示外边框
        plot.setOutlinePaint(Color.WHITE);// 外边框颜色
        // plot.setOutlineStroke(new BasicStroke(2.f));// 外边框框线粗细
        plot.setBackgroundPaint(Color.WHITE);// 白色背景
        plot.setNoDataMessage("无图表数据");// 无数据提示
        plot.setNoDataMessageFont(font);// 提示字体
        plot.setNoDataMessagePaint(Color.RED);// 提示字体颜色
        // 图例
        LegendTitle legend = chart.getLegend();// 图例对象
        legend.setPosition(RectangleEdge.BOTTOM);// 图例位置 上、下、左、右
        legend.setVisible(true);// 是否显示图例
        legend.setBorder(BlockBorder.NONE);// 图例无边框
        legend.setItemFont(font);// 图例大小
        // 网格线
        plot.setDomainGridlinePaint(Color.BLUE);
        plot.setDomainGridlinesVisible(true);// 竖线
        plot.setRangeGridlinePaint(Color.BLACK);
        plot.setRangeGridlinesVisible(true);// 横线
        // 横坐标
        NumberAxis xAxis = (NumberAxis)plot.getDomainAxis();// 获得横坐标
        xAxis.setTickLabelFont(font);// 设置X轴字体
        xAxis.setLabelFont(font);// 轴标签值字体
        xAxis.setTickLabelFont(font);// 轴标签字体
        xAxis.setAxisLineStroke(new BasicStroke(2f)); // 设置轴线粗细
        xAxis.setAxisLinePaint(Color.BLACK);// 轴线颜色
        xAxis.setLowerMargin(0.03D);// 左侧边距
        xAxis.setUpperMargin(0.03D);// 右侧边距
        xAxis.setTickUnit(new NumberTickUnit(1D));// 间距1D
        // 纵坐标
        ValueAxis yAxis = plot.getRangeAxis();
        yAxis.setTickLabelFont(font);// 设置y轴字体
        yAxis.setLabelFont(font);// 设置X轴标签字体
        yAxis.setAxisLineStroke(new BasicStroke(1f)); // 设置y轴线粗细
        yAxis.setAxisLinePaint(Color.BLACK);// 轴线颜色
        yAxis.setUpperMargin(0.18D);// 上边距
        yAxis.setLowerMargin(0.1D);// 下边距
        // 标签
        XYSplineRenderer renderer = new XYSplineRenderer();
        renderer.setItemLabelGenerator(new StandardXYItemLabelGenerator());
        renderer.setBaseItemLabelsVisible(true); // 基本项标签显示
        renderer.setBaseShapesVisible(true);
        renderer.setShapesFilled(Boolean.TRUE); // 在数据点显示实心的小图标
        renderer.setShapesVisible(true); // 设置显示小图标
        renderer.setItemLabelFont(font);// 设置数字的字体大小
        renderer.setStroke(new BasicStroke(4f));
        plot.setRenderer(renderer);
        //在D盘目录下生成图片
        int width = 1800;
        int height = 800;
        File p = new File(imagePath);
        if (!p.exists()) {
            p.mkdirs();
        String imageName = System.currentTimeMillis() + "_曲线图" + ".jpeg";
        File file = new File(p.getPath() + "/" + imageName);
        try {
            if(file.exists()) {
                file.delete();
            ChartUtilities.saveChartAsJPEG(file, chart, width, height);
        } catch (IOException e) {
            e.printStackTrace();
     * 生成环形图
    public static void annular(){
        DefaultPieDataset dataSet = new DefaultPieDataset();
        int i, j;
        String[] key = { "私募股权","房地产","基金","现金宝宝","股票" };
        int[] value = { 150, 20, 325, 78, 105 };
        for (i = 0, j = 0; i < key.length && j < value.length; i++, j++) {
            dataSet.setValue(key[i], value[j]);
        JFreeChart chart = ChartFactory.createRingChart("2021年收入", dataSet, true, false, false);
        // 设置显示标注
        chart.getLegend().setVisible(true);
        Font font = new Font("宋体", Font.BOLD, 15);
        chart.getLegend().setItemFont(font);
        // 标注位于上侧
        // chart.getLegend().setPosition(RectangleEdge.TOP);
        // 设置标注无边框
        chart.getLegend().setFrame(new BlockBorder(Color.WHITE));
        // 环形图
        RingPlot ringplot = (RingPlot) chart.getPlot();
        ringplot.setOutlineVisible(false);
        //{2}表示显示百分比  //{0}:key {1}:value {2}:百分比 {3}:sum
        ringplot.setLabelGenerator(new StandardPieSectionLabelGenerator("{0}:{1}"));
        ringplot.setBackgroundPaint(new Color(253,253,253));
        ringplot.setOutlineVisible(false);
        /*//设置标签样式
        ringplot.setLabelFont(new Font("宋体", Font.BOLD, 15));
        ringplot.setSimpleLabels(true);
        ringplot.setLabelLinkPaint(Color.WHITE);
        ringplot.setLabelOutlinePaint(Color.WHITE);
        ringplot.setLabelLinksVisible(false);
        ringplot.setLabelShadowPaint(null);
        ringplot.setLabelOutlinePaint(new Color(0,true));
        ringplot.setLabelBackgroundPaint(new Color(0,true));
        ringplot.setLabelPaint(Color.WHITE);*/
        ringplot.setSectionOutlinePaint(Color.WHITE);
        ringplot.setSeparatorsVisible(true);
        ringplot.setSeparatorPaint(Color.WHITE);
        ringplot.setShadowPaint(new Color(253,253,253));
        // 设置深度，即带颜⾊圆环的宽度
        ringplot.setSectionDepth(0.4);
        ringplot.setStartAngle(90);
        // 指定颜色
        ringplot.setDrawingSupplier(new DefaultDrawingSupplier(
                new Paint[] {
                        new Color(134, 212, 222),
                        new Color(174, 145, 195),
                        new Color(255, 162, 195),
                        new Color(249, 163, 86),
                        new Color(119, 173, 195)
                DefaultDrawingSupplier.DEFAULT_OUTLINE_PAINT_SEQUENCE,
                DefaultDrawingSupplier.DEFAULT_STROKE_SEQUENCE,
                DefaultDrawingSupplier.DEFAULT_OUTLINE_STROKE_SEQUENCE,
                DefaultDrawingSupplier.DEFAULT_SHAPE_SEQUENCE));
        //在D盘目录下生成图片
        int width = 800;
        int height = 600;
        File p = new File(imagePath);
        if (!p.exists()) {
            p.mkdirs();
        String imageName = System.currentTimeMillis() + "_环形图" + ".jpeg";
        File file = new File(p.getPath() + "/" + imageName);
        try {
            if(file.exists()) {
                file.delete();
            ChartUtilities.saveChartAsJPEG(file, chart, width, height);
        } catch (IOException e) {
            e.printStackTrace();
     * 生成区域图
    public static void areaChart(){
        // 行关键字
        String seriesArray[] = {"JAVA图书","Android图书","PHP图书"};
        // 列关键字
        String categoryArray[] = {"1月","2月","3月","4月","5月","6月"};
        // 对应的值
        int value[] = {310,489,512,589,359,402,501,200,308,580,418,315,480,381,264,185,209,302};
        // 创建分类数据集
        DefaultCategoryDataset dataset = new DefaultCategoryDataset();
        int data = 0;
        for (int i=0;i<3;i++) {
            for (int j = 0; j < 6; j++) {
                dataset.addValue(value[data], seriesArray[i], categoryArray[j]);
                data++;
        // 创建区域图对象
        JFreeChart chart = ChartFactory.createAreaChart(
                "2018年上半年销售量",// 图表标题
                "月份", // X轴标签
                "销售量（单位：本）",// Y轴标签
                dataset,               // 数据集
                PlotOrientation.VERTICAL,// 图表方向为垂直方向
                true,             // 是否显示图例
                false,           // 是否生成工具
                false               // 是否生成URL链接
        Font font = new Font("宋体", Font.BOLD, 15);
        // 标题
        TextTitle textTitle = chart.getTitle();
        textTitle.setFont(new Font("宋体", Font.PLAIN, 20));
        // 图例
        LegendTitle legendTitle = chart.getLegend();
        legendTitle.setItemFont(new Font("宋体", Font.PLAIN, 14));
        CategoryPlot categoryPlot = chart.getCategoryPlot();
        // 图表
        CategoryAxis categoryAxis = categoryPlot.getDomainAxis();
        categoryAxis.setTickLabelFont(font); // X轴字体
        categoryAxis.setLabelFont(font);     // X轴标签字体
        ValueAxis valueAxis = categoryPlot.getRangeAxis();                // Y轴对象
        valueAxis.setTickLabelFont(font);    // Y轴字体
        valueAxis.setLabelFont(font);        // Y轴标签字体
        categoryPlot.setForegroundAlpha(0.5f);
        //得到绘图区
        CategoryPlot plot = (CategoryPlot) chart.getPlot();
        //得到绘图区的域轴(横轴),设置标签的字体
        plot.getDomainAxis().setLabelFont(font);
        // 设置背景透明度
        plot.setBackgroundAlpha(0.1f);
        // 设置网格横线颜色
        plot.setRangeGridlinePaint(Color.gray);
        // 设置网格横线大小
        plot.setDomainGridlineStroke(new BasicStroke(0.2F));
        plot.setRangeGridlineStroke(new BasicStroke(0.2F));
        chart.getLegend().setItemFont(font);
        // 标注位于上侧
        // chart.getLegend().setPosition(RectangleEdge.TOP);
        // 设置标注无边框
        chart.getLegend().setFrame(new BlockBorder(Color.WHITE));
        //在D盘目录下生成图片
        int width = 800;
        int height = 600;
        File p = new File(imagePath);
        if (!p.exists()) {
            p.mkdirs();
        String imageName = System.currentTimeMillis() + "_区域图" + ".jpeg";
        File file = new File(p.getPath() + "/" + imageName);
        try {
            if(file.exists()) {
                file.delete();
            ChartUtilities.saveChartAsJPEG(file, chart, width, height);
        } catch (IOException e) {
            e.printStackTrace();
     * 生成气泡图2
    public static void bubble2(){
        // 系列关键字
        String seriesArray[] = {"JAVA图书","Android图书","PHP图书"};
        // 创建分类数据集
        DefaultXYZDataset dataset = new DefaultXYZDataset();
        double data1[][] = new double[][] { { 600 }, { 10 }, { 600 / (10 * 10) } };
        double data2[][] = new double[][] { { 650 }, { 10 }, { 650 / (10 * 10) } };
        double data3[][] = new double[][] { { 800 }, { 16 }, { 800 / (16 * 10) } };
        for (int i=0;i<seriesArray.length;i++) {
            dataset.addSeries(seriesArray[i], i == 0 ? data1: i==1 ? data2:data3);
        JFreeChart chart = ChartFactory.createBubbleChart(
                "2018年上半年销售量",    // 图表标题
                "页数",                  // X轴标签
                "章数",                  // Y轴标签
                dataset,                 // 数据集
                PlotOrientation.VERTICAL,// 图表方向为垂直方向
                true,                    // 是否显示图例
                false,                   // 是否生成工具
                false                    // 是否生成URL链接
        Font font = new Font("宋体", Font.BOLD, 15);
        // 标题
        TextTitle textTitle = chart.getTitle();
        textTitle.setFont(new Font("宋体", Font.PLAIN, 20));
        LegendTitle legendTitle = chart.getLegend();
        // 图例
        legendTitle.setItemFont(new Font("宋体", Font.PLAIN, 14));
        XYPlot plot = chart.getXYPlot();
        // 获取气泡图区域对象
        NumberAxis domainAxis = (NumberAxis) plot.getDomainAxis();
        // X轴对象
        domainAxis.setLabelFont(new Font("宋体", Font.PLAIN, 14));
        NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
        // Y轴对象
        rangeAxis.setLabelFont(new Font("宋体", Font.PLAIN, 14));
        plot.setForegroundAlpha(0.4f);
        // 设置背景透明度
        plot.setBackgroundAlpha(0.1f);
        // 设置网格横线颜色
        plot.setRangeGridlinePaint(Color.gray); // 注释的代码是设置背景透明度
        chart.getLegend().setItemFont(font);
        // 标注位于上侧
        // chart.getLegend().setPosition(RectangleEdge.TOP);
        // 设置标注无边框
        chart.getLegend().setFrame(new BlockBorder(Color.WHITE));
        //在D盘目录下生成图片
        int width = 800;
        int height = 600;
        File p = new File(imagePath);
        if (!p.exists()) {
            p.mkdirs();
        String imageName = System.currentTimeMillis() + "_气泡图2" + ".jpeg";
        File file = new File(p.getPath() + "/" + imageName);
        try {
            if(file.exists()) {
                file.delete();
            ChartUtilities.saveChartAsJPEG(file, chart, width, height);
        } catch (IOException e) {
            e.printStackTrace();
     * 生成分布图
    public static void chartPanel(){
        // 行关键字
        String seriesArray[] = {"JAVA图书","Android图书","PHP图书"};
        // 列关键字
        String categoryArray[] = {"1月","2月","3月","4月","5月","6月"};
        // 对应的值
        int value[] = {310,489,512,589,359,402,501,200,308,580,418,315,480,381,264,185,209,302};
        // 创建分类数据集
        DefaultCategoryDataset dataset = new DefaultCategoryDataset();
        int data = 0;
        for (int i=0;i<3;i++) {
            for (int j = 0; j < 6; j++) {
                dataset.addValue(value[data], seriesArray[i], categoryArray[j]);
                data++;
        CategoryItemRenderer renderer = new CategoryStepRenderer(true); // 分布图渲染对象
        renderer.setSeriesStroke(0, new BasicStroke(5));          // 将第一行数据线条加粗
        CategoryAxis domainAxis = new CategoryAxis("月份");               // 创建X轴
        domainAxis.setTickLabelFont(new Font("宋体", Font.PLAIN, 14));   // X轴字体
        domainAxis.setLabelFont(new Font("宋体", Font.PLAIN, 14));       // X轴标签字体
        ValueAxis rangeAxis = new NumberAxis("销售量（单位：本）");       // 创建Y轴
        rangeAxis.setTickLabelFont(new Font("宋体", Font.PLAIN, 14));    // Y轴字体
        rangeAxis.setLabelFont(new Font("宋体", Font.PLAIN, 14));        // Y轴标签字
        // 创建区域对象
        CategoryPlot plot = new CategoryPlot(dataset, domainAxis, rangeAxis, renderer);
        JFreeChart chart = new JFreeChart("2018年上半年销售量", plot);   // 生成图表
        TextTitle textTitle = chart.getTitle();                           // 标题
        textTitle.setFont(new Font("宋体", Font.PLAIN, 20));
        LegendTitle legendTitle = chart.getLegend();                     // 图例
        legendTitle.setItemFont(new Font("宋体", Font.PLAIN, 14));
        Font font = new Font("宋体", Font.BOLD, 15);
        //得到绘图区的域轴(横轴),设置标签的字体
        plot.getDomainAxis().setLabelFont(font);
        // 设置背景透明度
        plot.setBackgroundAlpha(0.1f);
        // 设置网格横线颜色
        plot.setRangeGridlinePaint(Color.gray);
        // 设置网格横线大小
        plot.setDomainGridlineStroke(new BasicStroke(0.2F));
        plot.setRangeGridlineStroke(new BasicStroke(0.2F));
        chart.getLegend().setItemFont(font);
        // 标注位于上侧
        // chart.getLegend().setPosition(RectangleEdge.TOP);
        // 设置标注无边框
        chart.getLegend().setFrame(new BlockBorder(Color.WHITE));
        //在D盘目录下生成图片
        int width = 800;
        int height = 600;
        File p = new File(imagePath);
        if (!p.exists()) {
            p.mkdirs();
        String imageName = System.currentTimeMillis() + "_分布图" + ".jpeg";
        File file = new File(p.getPath() + "/" + imageName);
        try {
            if(file.exists()) {
                file.delete();
            ChartUtilities.saveChartAsJPEG(file, chart, width, height);
        } catch (IOException e) {
            e.printStackTrace();
     * 联合分类图 折线、柱状
    public static void chartPanel1(){
        // 行关键字
        String seriesArray[] = {"JAVA图书","Android图书","PHP图书"};
        // 列关键字
        String categoryArray[] = {"1月","2月","3月","4月","5月","6月"};
        // 对应的值
        int value[] = {310,489,512,589,359,402,501,200,308,580,418,315,480,381,264,185,209,302};
        // 创建分类数据集
        DefaultCategoryDataset dataset = new DefaultCategoryDataset();
        int data = 0;
        for (int i=0;i<3;i++) {
            for (int j = 0; j < 6; j++) {
                dataset.addValue(value[data], seriesArray[i], categoryArray[j]);
                data++;
        LineAndShapeRenderer renderer1 = new LineAndShapeRenderer(); // 生成线形图渲染
        BarRenderer renderer2 = new BarRenderer();                     // 生成柱形图渲染
        // 区域图渲染
        AreaRenderer renderer3 = new AreaRenderer();
        CategoryAxis domainAxis = new CategoryAxis("月份");            // 设置X轴
        NumberAxis rangeAxis = new NumberAxis("销售量（单位：本）");   // 设置Y轴
        //设置Y轴 字体和颜色
        rangeAxis.setLabelFont(new Font("黑体",Font.PLAIN,12));
        rangeAxis.setLabelPaint(Color.BLUE) ; // 字体颜色
        rangeAxis.setTickLabelFont(new Font("黑体",Font.PLAIN,12));
        // 使用同样的数据，创建不同图表区域对象
        CategoryPlot plot1 = new CategoryPlot(dataset, domainAxis, rangeAxis, renderer1);
        CategoryPlot plot2 = new CategoryPlot(dataset, domainAxis, rangeAxis, renderer2);
        CategoryPlot plot3 = new CategoryPlot(dataset, domainAxis, rangeAxis, renderer3);
        // 生成折线图上的数字
        //绘图区域(红色矩形框的部分)
        /*LineAndShapeRenderer lineAndShapeRenderer=(LineAndShapeRenderer)plot1.getRenderer();
        lineAndShapeRenderer.setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator());
        //设置图表上的数字可见
        lineAndShapeRenderer.setBaseItemLabelsVisible(true);
        //设置图表上的数字字体
        lineAndShapeRenderer.setBaseItemLabelFont(new Font("宋体",Font.BOLD,15));*/
        // 设置联合分类图表
        CombinedDomainCategoryPlot plot = new CombinedDomainCategoryPlot(domainAxis);
        plot.add(plot1);                                                  // 添加图表区域对象
        plot.add(plot2);
        // plot.add(plot3);
        JFreeChart chart = new JFreeChart("2018年上半年销售量", plot); // 创建图表
        TextTitle textTitle = chart.getTitle();                          // 标题
        textTitle.setFont(new Font("宋体", Font.PLAIN, 20));
        // 图例
        LegendTitle legendTitle = chart.getLegend();
        legendTitle.setItemFont(new Font("宋体", Font.PLAIN, 14));
        // 图表区域
        CategoryPlot categoryPlot = chart.getCategoryPlot();
        // X轴
        CategoryAxis categoryAxis = categoryPlot.getDomainAxis();
        // X轴字体
        categoryAxis.setTickLabelFont(new Font("宋体", Font.PLAIN, 14));
        // X轴标签字体
        categoryAxis.setLabelFont(new Font("宋体", Font.PLAIN, 14));
        // 标注位于上侧
        // chart.getLegend().setPosition(RectangleEdge.TOP);
        // 设置标注无边框
        chart.getLegend().setFrame(new BlockBorder(Color.WHITE));
        //在D盘目录下生成图片
        int width = 800;
        int height = 600;
        File p = new File(imagePath);
        if (!p.exists()) {
            p.mkdirs();
        String imageName = System.currentTimeMillis() + "_联合分类图" + ".jpeg";
        File file = new File(p.getPath() + "/" + imageName);
        try {
            if(file.exists()) {
                file.delete();
            ChartUtilities.saveChartAsJPEG(file, chart, width, height);
        } catch (IOException e) {
            e.printStackTrace();
     * 双轴图
    public static void biaxial(){
        // 行关键字
        String seriesArray[] = {"JAVA图书","Android图书","PHP图书"};
        // 列关键字
        String categoryArray[] = {"1月","2月","3月","4月","5月","6月"};
        // 对应的值
        int value[] = {310,489,512,589,359,402,501,200,308,580,418,315,480,381,264,185,209,302};
        String lineArray[] = {"C++图书","C#图书","GO图书"};
        // 创建分类数据集-柱状图数据
        DefaultCategoryDataset columnarDataset = new DefaultCategoryDataset();
        int data = 0;
        for (int i=0;i<seriesArray.length;i++) {
            for (int j = 0; j < 6; j++) {
                columnarDataset.addValue(value[data], seriesArray[i], categoryArray[j]);
                data++;
        // 创建分类数据集-折线图
        DefaultCategoryDataset lineDataset = new DefaultCategoryDataset();
        data = 0;
        for (int i=0;i<lineArray.length;i++) {
            for (int k = 0; k < 6; k++) {
                lineDataset.addValue(value[data], lineArray[i], categoryArray[k]);
                data++;
        // 创建柱状图对象
        JFreeChart chart = ChartFactory.createBarChart(
                "2018年上半年销售量",                           // 图表标题
                "月份",                                          // x轴标签
                "销售量（单位：本）",                            // y轴标签
                columnarDataset,                                        // 数据集
                PlotOrientation.VERTICAL,                     // 图表方向为垂直方向
                true,                                           // 是否显示图例
                false,                                          // 是否生成工具
                false                                           // 是否生成URL链接
        // 标题
        TextTitle textTitle = chart.getTitle();
        textTitle.setFont(new Font("宋体", Font.PLAIN, 20));
        // 图例
        LegendTitle legendTitle = chart.getLegend();
        legendTitle.setItemFont(new Font("宋体", Font.PLAIN, 14));
        // 图表区域对象
        CategoryPlot categoryPlot = chart.getCategoryPlot();
        // X轴对象
        CategoryAxis categoryAxis = categoryPlot.getDomainAxis();
        // X轴字体
        categoryAxis.setTickLabelFont(new Font("宋体", Font.PLAIN, 14));
        // X轴标签字体
        categoryAxis.setLabelFont(new Font("宋体", Font.PLAIN, 14));
        // y轴
        ValueAxis valueAxis = categoryPlot.getRangeAxis();
        // y轴字体
        valueAxis.setTickLabelFont(new Font("宋体", Font.PLAIN, 14));
        // y轴标签字体
        valueAxis.setLabelFont(new Font("宋体", Font.PLAIN, 14));
        // 读取图表数据2
        categoryPlot.setDataset(1, lineDataset);
        // 获取线性渲染对象
        LineAndShapeRenderer renderer2 = new LineAndShapeRenderer();
        // 设置线形图
        categoryPlot.setRenderer(1, renderer2);
        // 设置双Y轴
        ValueAxis axis2 = new NumberAxis("网购销售量");
        // 设置Y轴最大值
        axis2.setUpperBound(200);
        categoryPlot.setRangeAxis(1, axis2);
        // 标注位于上侧
        // chart.getLegend().setPosition(RectangleEdge.TOP);
        // 设置标注无边框
        chart.getLegend().setFrame(new BlockBorder(Color.WHITE));
        // 设置背景透明度
        categoryPlot.setBackgroundAlpha(0.1f);
        // 设置网格横线颜色
        categoryPlot.setRangeGridlinePaint(Color.gray);
        // 设置网格横线大小
        categoryPlot.setDomainGridlineStroke(new BasicStroke(0.2F));
        categoryPlot.setRangeGridlineStroke(new BasicStroke(0.2F));
        //在D盘目录下生成图片
        int width = 800;
        int height = 600;
        File p = new File(imagePath);
        if (!p.exists()) {
            p.mkdirs();
        String imageName = System.currentTimeMillis() + "_双轴图" + ".jpeg";
        File file = new File(p.getPath() + "/" + imageName);
        try {
            if(file.exists()) {
                file.delete();
            ChartUtilities.saveChartAsJPEG(file, chart, width, height);
        } catch (IOException e) {
            e.printStackTrace();
     * 生成甘特图
    public static void createGanttChart(){
        IntervalCategoryDataset dataset = createSampleDataset();
        JFreeChart chart = ChartFactory.createGanttChart("任务管理系统",
                "任务各阶段详细实施计划",
                "任务周期",
                dataset,
                true,
                false,
                false);
        CategoryPlot plot=chart.getCategoryPlot();
        chart.getTitle().setFont(new Font("宋体",Font.BOLD,20));
        CategoryAxis domainAxis=plot.getDomainAxis();
        //水平底部列表
        domainAxis.setLabelFont(new Font("宋体",Font.BOLD,15));
        //水平底部标题
        domainAxis.setTickLabelFont(new Font("宋体",Font.BOLD,15));
        //垂直标题
        ValueAxis rangeAxis = plot.getRangeAxis();
        rangeAxis.setLabelFont(new Font("宋体",Font.BOLD,16));
        //用来控制时间轴的显示,防止乱码
        DateAxis da = (DateAxis)plot.getRangeAxis(0);
        da.setDateFormatOverride(new SimpleDateFormat("yyyy-MM-dd"));
        //设置提示条字体
        /*Font font = new Font("宋体", Font.BOLD, 15);
        chart.getLegend().setItemFont(font);
        // 标注位于上侧
        // chart.getLegend().setPosition(RectangleEdge.TOP);*/
        // 设置标注无边框
        chart.getLegend().setFrame(new BlockBorder(Color.WHITE));
        Font font = new Font("宋体", Font.BOLD, 15);
        //得到绘图区的域轴(横轴),设置标签的字体
        // plot.getDomainAxis().setLabelFont(font);
        // 设置背景透明度
        plot.setBackgroundAlpha(0.1f);
        // 设置网格横线颜色
        plot.setRangeGridlinePaint(Color.gray);
        // 设置网格横线大小
        plot.setDomainGridlineStroke(new BasicStroke(0.2F));
        plot.setRangeGridlineStroke(new BasicStroke(0.2F));
        //在D盘目录下生成图片
        int width = 800;
        int height = 600;
        File p = new File(imagePath);
        if (!p.exists()) {
            p.mkdirs();
        String imageName = System.currentTimeMillis() + "_甘特图" + ".jpeg";
        File file = new File(p.getPath() + "/" + imageName);
        try {
            if(file.exists()) {
                file.delete();
            ChartUtilities.saveChartAsJPEG(file, chart, width, height,null);
        } catch (IOException e) {
            e.printStackTrace();
     * 生成K线图
    public static void kImage(){
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");// 设置日期格式
        double highValue = Double.MIN_VALUE;// 设置K线数据当中的最大值
        double minValue = Double.MAX_VALUE;// 设置K线数据当中的最小值
        double high2Value = Double.MIN_VALUE;// 设置成交量的最大值
        double min2Value = Double.MAX_VALUE;// 设置成交量的最低值
        OHLCSeries series = new OHLCSeries("");// 高开低收数据序列，股票K线图的四个数据，依次是开，高，低，收
        series.add(new Day(28, 9, 2007), 9.2, 9.58, 9.16, 9.34);
        series.add(new Day(27, 9, 2007), 8.9, 9.06, 8.83, 8.96);
        series.add(new Day(26, 9, 2007), 9.0, 9.1, 8.82, 9.04);
        series.add(new Day(25, 9, 2007), 9.25, 9.33, 8.88, 9.00);
        series.add(new Day(24, 9, 2007), 9.05, 9.50, 8.91, 9.25);
        series.add(new Day(21, 9, 2007), 8.68, 9.05, 8.40, 9.00);
        series.add(new Day(20, 9, 2007), 8.68, 8.95, 8.50, 8.69);
        series.add(new Day(19, 9, 2007), 8.80, 8.94, 8.50, 8.66);
        series.add(new Day(18, 9, 2007), 8.88, 9.17, 8.69, 8.80);
        series.add(new Day(17, 9, 2007), 8.26, 8.98, 8.15, 8.89);
        series.add(new Day(14, 9, 2007), 8.44, 8.45, 8.13, 8.33);
        series.add(new Day(13, 9, 2007), 8.13, 8.46, 7.97, 8.42);
        series.add(new Day(12, 9, 2007), 8.2, 8.4, 7.81, 8.13);
        series.add(new Day(11, 9, 2007), 9.0, 9.0, 8.1, 8.24);
        series.add(new Day(10, 9, 2007), 8.6, 9.03, 8.40, 8.95);
        series.add(new Day(7, 9, 2007), 8.89, 9.04, 8.70, 8.73);
        series.add(new Day(6, 9, 2007), 8.4, 9.08, 8.33, 8.88);
        series.add(new Day(5, 9, 2007), 8.2, 8.74, 8.17, 8.36);
        series.add(new Day(4, 9, 2007), 7.7, 8.46, 7.67, 8.27);
        series.add(new Day(3, 9, 2007), 7.5, 7.8, 7.48, 7.69);
        series.add(new Day(31, 8, 2007), 7.4, 7.6, 7.28, 7.43);
        series.add(new Day(30, 8, 2007), 7.42, 7.56, 7.31, 7.40);
        series.add(new Day(29, 8, 2007), 7.42, 7.66, 7.22, 7.33);
        series.add(new Day(28, 8, 2007), 7.31, 7.70, 7.15, 7.56);
        series.add(new Day(27, 8, 2007), 7.05, 7.46, 7.02, 7.41);
        series.add(new Day(24, 8, 2007), 7.05, 7.09, 6.90, 6.99);
        series.add(new Day(23, 8, 2007), 7.12, 7.16, 7.00, 7.03);
        series.add(new Day(22, 8, 2007), 6.96, 7.15, 6.93, 7.11);
        series.add(new Day(21, 8, 2007), 7.10, 7.15, 7.02, 7.07);
        series.add(new Day(20, 8, 2007), 7.02, 7.19, 6.94, 7.14);
        final OHLCSeriesCollection seriesCollection = new OHLCSeriesCollection();// 保留K线数据的数据集，必须申明为final，后面要在匿名内部类里面用到
        seriesCollection.addSeries(series);
        TimeSeries series2=new TimeSeries("");// 对应时间成交量数据
        series2.add(new Day(28, 9, 2007), 260659400/100);
        series2.add(new Day(27, 9, 2007), 119701900/100);
        series2.add(new Day(26, 9, 2007), 109719000/100);
        series2.add(new Day(25, 9, 2007), 178492400/100);
        series2.add(new Day(24, 9, 2007), 269978500/100);
        series2.add(new Day(21, 9, 2007), 361042300/100);
        series2.add(new Day(20, 9, 2007), 173912600/100);
        series2.add(new Day(19, 9, 2007), 154622600/100);
        series2.add(new Day(18, 9, 2007), 200661600/100);
        series2.add(new Day(17, 9, 2007), 312799600/100);
        series2.add(new Day(14, 9, 2007), 141652900/100);
        series2.add(new Day(13, 9, 2007), 221260400/100);
        series2.add(new Day(12, 9, 2007), 274795400/100);
        series2.add(new Day(11, 9, 2007), 289287300/100);
        series2.add(new Day(10, 9, 2007), 289063600/100);
        series2.add(new Day(7, 9, 2007), 351575300/100);
        series2.add(new Day(6, 9, 2007), 451357300/100);
        series2.add(new Day(5, 9, 2007), 442421200/100);
        series2.add(new Day(4, 9, 2007), 671942600/100);
        series2.add(new Day(3, 9, 2007), 349647800/100);
        series2.add(new Day(31, 8, 2007), 225339300/100);
        series2.add(new Day(30, 8, 2007), 160048200/100);
        series2.add(new Day(29, 8, 2007), 247341700/100);
        series2.add(new Day(28, 8, 2007), 394975400/100);
        series2.add(new Day(27, 8, 2007), 475797500/100);
        series2.add(new Day(24, 8, 2007), 297679500/100);
        series2.add(new Day(23, 8, 2007), 191760600/100);
        series2.add(new Day(22, 8, 2007), 232570200/100);
        series2.add(new Day(21, 8, 2007), 215693200/100);
        series2.add(new Day(20, 8, 2007), 200287500/100);
        TimeSeriesCollection timeSeriesCollection=new TimeSeriesCollection();// 保留成交量数据的集合
        timeSeriesCollection.addSeries(series2);
        // 获取K线数据的最高值和最低值
        int seriesCount = seriesCollection.getSeriesCount();// 一共有多少个序列，目前为一个
        for (int i = 0; i < seriesCount; i++) {
            int itemCount = seriesCollection.getItemCount(i);// 每一个序列有多少个数据项
            for (int j = 0; j < itemCount; j++) {
                if (highValue < seriesCollection.getHighValue(i, j)) {// 取第i个序列中的第j个数据项的最大值
                    highValue = seriesCollection.getHighValue(i, j);
                if (minValue > seriesCollection.getLowValue(i, j)) {// 取第i个序列中的第j个数据项的最小值
                    minValue = seriesCollection.getLowValue(i, j);
        // 获取最高值和最低值
        int seriesCount2 = timeSeriesCollection.getSeriesCount();// 一共有多少个序列，目前为一个
        for (int i = 0; i < seriesCount2; i++) {
            int itemCount = timeSeriesCollection.getItemCount(i);// 每一个序列有多少个数据项
            for (int j = 0; j < itemCount; j++) {
                if (high2Value < timeSeriesCollection.getYValue(i,j)) {// 取第i个序列中的第j个数据项的值
                    high2Value = timeSeriesCollection.getYValue(i,j);
                if (min2Value > timeSeriesCollection.getYValue(i, j)) {// 取第i个序列中的第j个数据项的值
                    min2Value = timeSeriesCollection.getYValue(i, j);
        final CandlestickRenderer candlestickRender=new CandlestickRenderer();// 设置K线图的画图器，必须申明为final，后面要在匿名内部类里面用到
        candlestickRender.setUseOutlinePaint(true); // 设置是否使用自定义的边框线，程序自带的边框线的颜色不符合中国股票市场的习惯
        candlestickRender.setAutoWidthMethod(CandlestickRenderer.WIDTHMETHOD_AVERAGE);// 设置如何对K线图的宽度进行设定
        candlestickRender.setAutoWidthGap(0.001);// 设置各个K线图之间的间隔
        candlestickRender.setUpPaint(Color.RED);// 设置股票上涨的K线图颜色
        candlestickRender.setDownPaint(Color.GREEN);// 设置股票下跌的K线图颜色
        DateAxis x1Axis=new DateAxis();// 设置x轴，也就是时间轴
        x1Axis.setAutoRange(false);// 设置不采用自动设置时间范围
        try{
            x1Axis.setRange(dateFormat.parse("2007-08-20"),dateFormat.parse("2007-09-29"));// 设置时间范围，注意时间的最大值要比已有的时间最大值要多一天
        }catch(Exception e){
            e.printStackTrace();
        x1Axis.setTimeline(SegmentedTimeline.newMondayThroughFridayTimeline());// 设置时间线显示的规则，用这个方法就摒除掉了周六和周日这些没有交易的日期(很多人都不知道有此方法)，使图形看上去连续
        x1Axis.setAutoTickUnitSelection(false);// 设置不采用自动选择刻度值
        x1Axis.setTickMarkPosition(DateTickMarkPosition.MIDDLE);// 设置标记的位置
        x1Axis.setStandardTickUnits(DateAxis.createStandardDateTickUnits());// 设置标准的时间刻度单位
        x1Axis.setTickUnit(new DateTickUnit(DateTickUnit.DAY,7));// 设置时间刻度的间隔，一般以周为单位
        x1Axis.setDateFormatOverride(new SimpleDateFormat("yyyy-MM-dd"));// 设置显示时间的格式
        NumberAxis y1Axis=new NumberAxis();// 设定y轴，就是数字轴
        y1Axis.setAutoRange(false);// 不不使用自动设定范围
        y1Axis.setRange(minValue*0.9, highValue*1.1);// 设定y轴值的范围，比最低值要低一些，比最大值要大一些，这样图形看起来会美观些
        y1Axis.setTickUnit(new NumberTickUnit((highValue*1.1-minValue*0.9)/10));// 设置刻度显示的密度
        XYPlot plot1=new XYPlot(seriesCollection,x1Axis,y1Axis,candlestickRender);// 设置画图区域对象
        XYBarRenderer xyBarRender=new XYBarRenderer(){
            private static final long serialVersionUID = 1L;// 为了避免出现警告消息，特设定此值
            public Paint getItemPaint(int i, int j){// 匿名内部类用来处理当日的成交量柱形图的颜色与K线图的颜色保持一致
                if(seriesCollection.getCloseValue(i,j)>seriesCollection.getOpenValue(i,j)){// 收盘价高于开盘价，股票上涨，选用股票上涨的颜色
                    return candlestickRender.getUpPaint();
                }else{
                    return candlestickRender.getDownPaint();
        xyBarRender.setMargin(0.1);// 设置柱形图之间的间隔
        NumberAxis y2Axis=new NumberAxis();// 设置Y轴，为数值,后面的设置，参考上面的y轴设置
        y2Axis.setAutoRange(false);
        y2Axis.setRange(min2Value*0.9, high2Value*1.1);
        y2Axis.setTickUnit(new NumberTickUnit((high2Value*1.1-min2Value*0.9)/4));
        XYPlot plot2=new XYPlot(timeSeriesCollection,null,y2Axis,xyBarRender);// 建立第二个画图区域对象，主要此时的x轴设为了null值，因为要与第一个画图区域对象共享x轴
        CombinedDomainXYPlot combineddomainxyplot = new CombinedDomainXYPlot(x1Axis);// 建立一个恰当的联合图形区域对象，以x轴为共享轴
        combineddomainxyplot.add(plot1, 2);// 添加图形区域对象，后面的数字是计算这个区域对象应该占据多大的区域2/3
        combineddomainxyplot.add(plot2, 1);// 添加图形区域对象，后面的数字是计算这个区域对象应该占据多大的区域1/3
        combineddomainxyplot.setGap(10);// 设置两个图形区域对象之间的间隔空间
        JFreeChart chart = new JFreeChart("中国联通", JFreeChart.DEFAULT_TITLE_FONT, combineddomainxyplot, false);
        //在D盘目录下生成图片
        int width = 800;
        int height = 600;
        File p = new File(imagePath);
        if (!p.exists()) {
            p.mkdirs();
        String imageName = System.currentTimeMillis() + "_k线图" + ".jpeg";
        File file = new File(p.getPath() + "/" + imageName);
        try {
            if(file.exists()) {
                file.delete();
            ChartUtilities.saveChartAsJPEG(file, chart, width, height);
        } catch (IOException e) {
            e.printStackTrace();
         为了能够保证K线图的上影线和下影线能够和K线图本身的颜色保持一致，找了很多的方法设置都不成功，可以说目前暂不提供单独绘制K线边框颜色的方法，所以，经过本人的实验，对其中的源代码进行了下修改，具体修改的地方是在下载回来的文件目中source\org\jfree\chart\renderer\xy\CandlestickRenderer.java文件，将
        //Paint p = getItemPaint(series, item);
        //           Paint outlinePaint = null;
        //           outlinePaint = getItemOutlinePaint(series, item);
         修改为如下的代码，这样就会保证K线图的上影线和下影线能够和K线图本身的颜色保持一致，符合中国股票市场K线图形颜色的习惯：
        //Paint p = getItemPaint(series, item);
        //           Paint outlinePaint = null;
        //           if (this.useOutlinePaint) {
        //            if(yClose>yOpen){
        //             if (this.upPaint != null) {
        //              outlinePaint=this.upPaint;
        //                   }
        //                   else {
        //                    outlinePaint=p;
        //                   }
        //            }else{
        //             if (this.downPaint != null) {
        //              outlinePaint=this.downPaint;
        //                   }
        //                   else {
        //                    outlinePaint=p;
        //                   }
        //            }
     * 生成柱状图-横向
    public static void bar3DHx() {
        // 行关键字
        String seriesArray[] = {"菲亚特","奥迪","福特"};
        // 列关键字
        String categoryArray[] = {"速度","喜欢程度","邮寄","用户评价","安全性","使用性"};
        // 对应的值
        int value[] = {310,489,512,589,359,402,501,200,308,580,418,315,480,381,264,185,209,302};
        // 创建分类数据集
        DefaultCategoryDataset dataset = new DefaultCategoryDataset();
        int data = 0;
        for (int i=0;i<3;i++) {
            for (int j = 0; j < 6; j++) {
                dataset.addValue(value[data], seriesArray[i], categoryArray[j]);
                data++;
        // 设置字体，去除中文乱码
        StandardChartTheme sct = new StandardChartTheme("CN");
        sct.setExtraLargeFont(new Font("宋体", Font.LAYOUT_LEFT_TO_RIGHT, 15));
        sct.setRegularFont(new Font("宋体", Font.LAYOUT_LEFT_TO_RIGHT, 15));
        sct.setLargeFont(new Font("宋体", Font.LAYOUT_LEFT_TO_RIGHT, 15));
        ChartFactory.setChartTheme(sct);
        JFreeChart chart = ChartFactory.createBarChart3D(
                "汽车使用统计",
                "",// 类别
                "", // 值
                dataset,
                PlotOrientation.HORIZONTAL,
                true, true, false);
        //得到绘图区
        CategoryPlot plot = (CategoryPlot) chart.getPlot();
        /*//获取X轴的对象
        // CategoryAxis categoryAxis = plot.getDomainAxis();
        // 设置X轴文本倾斜45度
        // categoryAxis.setCategoryLabelPositions(CategoryLabelPositions.UP_45);
        // 设置背景透明度
        plot.setBackgroundAlpha(0.1f);
        // 设置网格横线颜色
        plot.setRangeGridlinePaint(Color.gray);*/ // 注释的代码放开就是背景透明
        /* // 注释的是设置显示数值
        BarRenderer renderer = new BarRenderer();
        renderer.setBarPainter(new StandardBarPainter());// 取消渐变效果
        renderer.setShadowVisible(false);// 关闭倒影
        renderer.setDrawBarOutline(false); // 设置柱子边框可见
        renderer.setItemMargin(0.03); // 组内柱子间隔为组宽的10%
        renderer.setMaximumBarWidth(0.03);// 设置条形柱最大宽度
        renderer.setMinimumBarLength(0.03);// 设置条形柱最小宽度
        renderer.setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator());// 数据标签格式
        renderer.setBaseItemLabelsVisible(true);// 是否显示数据标签
        renderer.setSeriesPaint(0, Color.BLUE);
        plot.setRenderer(renderer);*/
        // 取得纵轴
        NumberAxis numberAxis = (NumberAxis) plot.getRangeAxis();
        int width = 640;
        int height = 480;
        // 标注位于上侧
        chart.getLegend().setPosition(RectangleEdge.TOP);
        // 设置标注无边框
        chart.getLegend().setFrame(new BlockBorder(Color.WHITE));
        //在D盘目录下生成图片
        File p = new File(imagePath);
        if (!p.exists()) {
            p.mkdirs();
        String imageName = System.currentTimeMillis() + "_3D柱状图_横向" + ".jpeg";
        File file = new File(p.getPath() + "/" + imageName);
        try {
            if(file.exists()) {
                file.delete();
            ChartUtilities.saveChartAsJPEG(file, chart, width, height);
        } catch (IOException e) {
            e.printStackTrace();
    private static Date date(final int day, final int month, final int year){
        final Calendar calendar = Calendar.getInstance();
        calendar.set(year, month, day);
        final Date result = calendar.getTime();
        return result;
    private static IntervalCategoryDataset createSampleDataset() {
        final TaskSeries s1 = new TaskSeries("时间表");
        final Task t1 = new Task("任务1", date(1, Calendar.JANUARY, 2001), date(5, Calendar.APRIL, 2001));
        t1.setPercentComplete(0.8);
        s1.add(t1);
        // 创建一个任务并插入两个子任务
        final Task t3 = new Task("任务2", date(10, Calendar.APRIL, 2001), date(5, Calendar.MAY, 2001));
        final Task st31 = new Task("需求1", date(10, Calendar.APRIL, 2001), date(25, Calendar.APRIL, 2001));
        st31.setPercentComplete(0.50);
        final Task st32 = new Task("需求2", date(1, Calendar.MAY, 2001), date(5, Calendar.MAY, 2001));
        st32.setPercentComplete(1.0);
        t3.addSubtask(st31);
        t3.addSubtask(st32);
        s1.add(t3);
        final Task t5 = new Task("任务3", date(2, Calendar.JUNE, 2001), date(2, Calendar.JUNE, 2001));
        s1.add(t5);
        final Task t6 = new Task("任务4", date(3, Calendar.MARCH, 2001), date(31, Calendar.JULY, 2001));
        t6.setPercentComplete(0.60);
        s1.add(t6);
        final Task t8 = new Task("任务结束", date(10, Calendar.AUGUST, 2001), date(10, Calendar.AUGUST, 2001));
        t8.setPercentComplete(0.0);
        s1.add(t8);
        final Task t9 = new Task("任务试用", date(12, Calendar.AUGUST, 2001), date(12, Calendar.SEPTEMBER, 2001));
        t9.setPercentComplete(0.0);
        s1.add(t9);
        final Task t10 = new Task("任务测试", date(13, Calendar.SEPTEMBER, 2001), date(31, Calendar.OCTOBER, 2001));
        t10.setPercentComplete(0.2);
        s1.add(t10);
        final Task t12 = new Task("全部结束", date(28, Calendar.NOVEMBER, 2001), date(30, Calendar.NOVEMBER, 2001));
        t12.setPercentComplete(0.0);
        s1.add(t12);
        final TaskSeriesCollection collection = new TaskSeriesCollection();
        collection.add(s1);
        return collection;
3、调用测试生成对应的图片
public static void main(String[] args) throws Exception {
        // 生成饼图
        testPie();
        // 生成折线图
        testLine();
        // 生成柱状图
        testBar();
        // 生成折线图 多条
        testCreateManyLineChart();
        // 生成3D柱状图
        bar3D();
        // 生成气泡图
        bubble();
        // 生成时序图
        sequenceDiagram();
4、生成的图片示例
4.1 饼图
4.2 折线图
4.3 柱状图
4.4 折线图-多条
 4.5 生成3D柱状图
4.6 生成气泡图
4.7 生成时序图
4.8 生成曲线图
4.9 生成环形图
4.10 生成区域图
4.11 气泡图2
 4.12 生成分布图
4.13 生成联合分类图-折线、柱状
4.14 双X轴图
4.15 甘特图
4.16 K线图
4.17 柱状图-横向
    码奴生来只知道前进
        Java开发工程师
        20.7k
       粉丝




    
 
 目录
 收起
 
 
      1、添加依赖
      2、生成图表图片工具类
      3、调用测试生成对应的图片
      4、生成的图片示例
      4.1 饼图
      4.2 折线图
      4.3 柱状图
      4.4 折线图-多条
       4.5 生成3D柱状图
      4.6 生成气泡图
      4.7 生成时序图
      4.8 生成曲线图
      4.9 生成环形图
      4.10 生成区域图
      4.11 气泡图2
       4.12 生成分布图
      4.13 生成联合分类图-折线、柱状
      4.14 双X轴图
      4.15 甘特图
      4.16 K线图
      4.17 柱状图-横向