java生成饼图

 pom.xml文件导入依赖包

<!-- https://mvnrepository.com/artifact/org.jfree/jfreechart -->
<dependency>
    <groupId>org.jfree</groupId>
    <artifactId>jfreechart</artifactId>
    <version>1.0.19</version>
</dependency>

package com.longteng.framework.asserts;

import java.awt.Container;
import java.awt.Font;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PiePlot;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.data.general.PieDataset;
import org.jfree.ui.ApplicationFrame;

public class FirstJFreeChart extends ApplicationFrame {/** 
    * 
    */ 
    private static final long serialVersionUID = 1L;/** 
    * @param args 
    */ 
    public static void main(String[] args) {
        FirstJFreeChart chart = new FirstJFreeChart("每日水果组织结构图");
        chart.pack();
        chart.setVisible(true);
    }
    public FirstJFreeChart(String title) {
        super(title);
        setContentPane(createDemoPanel()); 
    }
    private Container createDemoPanel() {
        JFreeChart jFreeChart = createChart(createDataset());
        return new ChartPanel(jFreeChart); 
    }
    private PieDataset createDataset() {
        DefaultPieDataset dp = new DefaultPieDataset();    
        dp.setValue("苹果",100);
        dp.setValue("梨子",200);
        dp.setValue("葡萄",300);
        dp.setValue("香蕉",400);
        dp.setValue("荔枝",500);
        return dp; 
    }
    // 生成图标助对象JFreeChart 
    private JFreeChart createChart(PieDataset piedataset) {
        // 定义图标对象
        JFreeChart jFreeChart = ChartFactory.createPieChart("水果组织结构图", piedataset, true, true, false);
        //ChartFactory.createpi
        // 获得图表显示对象
        PiePlot piePlot = (PiePlot) jFreeChart.getPlot();
        // 设置图标标签字体
        piePlot.setLabelFont(new Font("SansSerif", Font.BOLD, 12));
        piePlot.setNoDataMessage("No data available");
        piePlot.setCircular(true);// 间距
        piePlot.setLabelGap(0.01D);
        return jFreeChart; 
    } 
}