如何在Jsp中绘制雷达图

Question

我可以让读者在 swing 中聊天，但是我如何在 jsp 中绘制该聊天 我在这篇文章中说明了我的代码，那么如何在 jsp 中绘制雷达聊天 我正在使用六角形图表

import java.awt.*;
import org.jfree.ui.*;
import org.jfree.chart.*;
import org.jfree.chart.plot.*;
import org.jfree.chart.labels.*;
import org.jfree.chart.title.*;
import org.jfree.data.category.*;

  public class RadarChart extends ApplicationFrame {
    public DefaultCategoryDataset dataset;
    public SpiderWebPlot plot;

    public RadarChart(String title) {
        super(title);
        String series1 = "First";
        String series2 = "Second";
        String series3 = "Third";

        String category1 = "Task Completion";
        String category2 = "Accuracy";
        String category3 = "Sophistication";
        String category4 = "Listening";
        String category5 = "Pronunciation";

        DefaultCategoryDataset dataset = new DefaultCategoryDataset();
        dataset.addValue(5.0, series1, category1);
        dataset.addValue(5.0, series1, category2);
        dataset.addValue(5.0, series1, category3);
        dataset.addValue(5.0, series1, category4);
        dataset.addValue(5.0, series1, category5);

        dataset.addValue(2.0, series2, category1);
        dataset.addValue(4.0, series2, category2);
        dataset.addValue(5.0, series2, category3);
        dataset.addValue(3.0, series2, category4);
        dataset.addValue(5.0, series2, category5);


        SpiderWebPlot plot = new SpiderWebPlot(dataset);

        plot.setStartAngle(90);

        plot.setInteriorGap(0.20);

        plot.setToolTipGenerator(new StandardCategoryToolTipGenerator());

        JFreeChart chart = new JFreeChart("", TextTitle.DEFAULT_FONT, plot, false);

        ChartUtilities.applyCurrentTheme(chart);

        ChartPanel chartPanel = new ChartPanel(chart);
        this.plot = (SpiderWebPlot) chartPanel.getChart().getPlot();
        this.dataset = (DefaultCategoryDataset) plot.getDataset();
        chartPanel.setPreferredSize(new Dimension(500, 270));
        setContentPane(chartPanel);
        }


        public static void main(String[] args) {
                RadarChart demo = new RadarChart("Chart");
                demo.pack();
                RefineryUtilities.centerFrameOnScreen(demo);
                demo.setVisible(true);
        }
}

Answer 1

JFreeChart 可以绘制雷达图。