Java，JFreeChat简单应用(二)

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("XX公司组织结构图");
		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("guan li ren yuan", 10.02D);
		dp.setValue("shi chang ren yuan", 20.23D);
		dp.setValue("kai fa ren yuan", 60.02D);
		dp.setValue("OEM ren yuan", 10.02D);
		dp.setValue("qi ta ren yuan", 5.11D);
		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("XX公司组织结构tu",
				piedataset, true, true, false);
		// 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;
	}

}