java雷達圖

A. JFreeChart鐨勮湗錏涚綉鍥撅紙鍙堢О闆瘋揪鍥撅紝緗戠姸鍥撅級搴旇ユ庝箞鍐欏晩

緇欎綘涓涓鎴戜粠涓婂弽緙栬瘧榪囨潵鐨勶紝鏄涓闆瘋揪鍥撅紝鍖呭姞杞藉逛簡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中怎麼樣實現圖形報表啊

FineReport就是純java編寫的報表工具，有豐富的圖表功能，不僅提供了常見的圖表類型。其中包括：條形圖、柱狀圖、折線圖、面積圖、餅圖、散點圖、雷達圖、儀表盤等，還支持多種類型的組合顯示，並可以集成第三方圖表。
你可以查閱一下相關的文檔，網路文庫中就有。