由JFreeChart生成图片放到硬盘上
package com.mengya.test.jfreechart;import java.awt.Font;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.io.OutputStream;import org.jfree.chart.ChartFactory;import org.jfree.chart.ChartUtilities;import org.jfree.chart.JFreeChart;import org.jfree.chart.plot.PiePlot;import org.jfree.chart.title.LegendTitle;import org.jfree.chart.title.TextTitle;import org.jfree.data.general.DefaultPieDataset;/** * 由JFreeChart生成图片放到硬盘上* 对于Swing程序可以由org.jfree.chart.ChartUtilities类完成图片的生成 ** @author 张明学 **/public class JfreeChartTest3 {public static void main(String[] args) {JFreeChart chart = ChartFactory.createPieChart("某公司组织结构图",getDataset(), true, false, false);chart.setTitle(new TextTitle("某公司组织结构图", new Font("仿宋", Font.BOLD,20)));LegendTitle legend = chart.getLegend(0);legend.setItemFont(new Font("隶书", Font.TYPE1_FONT, 16));PiePlot plot = (PiePlot) chart.getPlot();plot.setLabelFont(new Font("宋体", Font.HANGING_BASELINE, 12));try {OutputStream os = new FileOutputStream("company.jpeg");try {// 由ChartUtilities生成文件到一个体outputStream中去ChartUtilities.writeChartAsJPEG(os, chart, 1000, 800);} catch (IOException e) {e.printStackTrace();}} catch (FileNotFoundException e) {e.printStackTrace();}}private static DefaultPieDataset getDataset() {DefaultPieDataset dpd = new DefaultPieDataset();dpd.setValue("管理人员", 25);dpd.setValue("市场人员", 10);dpd.setValue("开发人员", 50);dpd.setValue("其它人员", 15);return dpd;}}
页:
[1]