java树状图

JAVA 生成树状图及饼图

 

 

import java.awt.Color;

import java.awt.Font;

import java.io.PrintWriter;

import java.text.DecimalFormat;

import java.util.List;

import javax.servlet.http.HttpSession; 

import org.jfree.chart.ChartFactory;

import org.jfree.chart.ChartRenderingInfo;

import org.jfree.chart.ChartUtilities;

import org.jfree.chart.JFreeChart;

import org.jfree.chart.axis.CategoryAxis;

import org.jfree.chart.entity.StandardEntityCollection;

import org.jfree.chart.labels.ItemLabelAnchor;

import org.jfree.chart.labels.ItemLabelPosition;

import org.jfree.chart.labels.StandardCategoryItemLabelGenerator;

import org.jfree.chart.labels.StandardPieSectionLabelGenerator;

import org.jfree.chart.labels.StandardPieToolTipGenerator;

import org.jfree.chart.plot.CategoryPlot;

import org.jfree.chart.plot.PiePlot3D;

import org.jfree.chart.plot.PlotOrientation;

import org.jfree.chart.renderer.category.BarRenderer3D;

import org.jfree.chart.servlet.ServletUtilities;

import org.jfree.data.category.DefaultCategoryDataset;

import org.jfree.data.general.DefaultPieDataset;

import org.jfree.ui.TextAnchor;

 

public class ChartGenerater{