java雷达图

A. JFreeChart镄勮湗铔涚绣锲撅纸鍙堢О闆疯揪锲撅纴缃戠姸锲撅级搴旇ユ庝箞鍐椤晩

缁欎綘涓涓鎴戜粠涓婂弽缂栬疟杩囨潵镄勶纴鏄涓闆疯揪锲撅纴鍖呭姞杞藉逛简浣犲氨鑳界湅鍒版晥鏋
package demo;

import java.awt.Dimension;
import javax.swing.JPanel;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.labels.;
import org.jfree.chart.plot.SpiderWebPlot;
import org.jfree.chart.title.LegendTitle;
import org.jfree.chart.title.TextTitle;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.ui.*;

public class SpiderWebChartDemo1 extends ApplicationFrame
{

public SpiderWebChartDemo1(String s)
{
super(s);
JPanel jpanel = createDemoPanel();
jpanel.setPreferredSize(new Dimension(500, 270));
setContentPane(jpanel);
}

private static CategoryDataset createDataset()
{
String s = "First";
String s1 = "Second";
String s2 = "Third";
String s3 = "Category 1";
String s4 = "Category 2";
String s5 = "Category 3";
String s6 = "Category 4";
String s7 = "Category 5";
DefaultCategoryDataset defaultcategorydataset = new DefaultCategoryDataset();
defaultcategorydataset.addValue(1.0D, s, s3);
defaultcategorydataset.addValue(4D, s, s4);
defaultcategorydataset.addValue(3D, s, s5);
defaultcategorydataset.addValue(5D, s, s6);
defaultcategorydataset.addValue(5D, s, s7);
defaultcategorydataset.addValue(5D, s1, s3);
defaultcategorydataset.addValue(7D, s1, s4);
defaultcategorydataset.addValue(6D, s1, s5);
defaultcategorydataset.addValue(8D, s1, s6);
defaultcategorydataset.addValue(4D, s1, s7);
defaultcategorydataset.addValue(4D, s2, s3);
defaultcategorydataset.addValue(3D, s2, s4);
defaultcategorydataset.addValue(2D, s2, s5);
defaultcategorydataset.addValue(3D, s2, s6);
defaultcategorydataset.addValue(6D, s2, s7);
return defaultcategorydataset;
}

private static JFreeChart createChart(CategoryDataset categorydataset)
{
SpiderWebPlot spiderwebplot = new SpiderWebPlot(categorydataset);
spiderwebplot.setStartAngle(54D);
spiderwebplot.setInteriorGap(0.40000000000000002D);
spiderwebplot.setToolTipGenerator(new ());
JFreeChart jfreechart = new JFreeChart("Spider Web Chart Demo 1", TextTitle.DEFAULT_FONT, spiderwebplot, false);
LegendTitle legendtitle = new LegendTitle(spiderwebplot);
legendtitle.setPosition(RectangleEdge.BOTTOM);
jfreechart.addSubtitle(legendtitle);
return jfreechart;
}

public static JPanel createDemoPanel()
{
JFreeChart jfreechart = createChart(createDataset());
return new ChartPanel(jfreechart);
}

public static void main(String args[])
{
SpiderWebChartDemo1 spiderwebchartdemo1 = new SpiderWebChartDemo1("SpiderWebChartDemo1");
spiderwebchartdemo1.pack();
RefineryUtilities.centerFrameOnScreen(spiderwebchartdemo1);
spiderwebchartdemo1.setVisible(true);
}
}

B. java中怎么样实现图形报表啊

FineReport就是纯java编写的报表工具，有丰富的图表功能，不仅提供了常见的图表类型。其中包括：条形图、柱状图、折线图、面积图、饼图、散点图、雷达图、仪表盘等，还支持多种类型的组合显示，并可以集成第三方图表。
你可以查阅一下相关的文档，网络文库中就有。