Java 生成饼图；可以直接运行，含jar文件，注释全。

包含jfreechart-1.0.19，jcommon-1.0.19，jcommon-1.0.23，jfreechart-1.0.19-fx-javadocs，jfreechart-1.0.19-install.pdf

jfreechart-1.0.19及相关的jar包（jcommon-1.0.23.jar、jfreechart-1.0.19-experimental.jar）

jfreechart折线图读取数据库数据的显示

public void graphicsGeneration(int h1, int h2, int h3, int h4, int h5) { final int X = 10; int imageWidth = 300;// ͼƬ�Ŀ�� int imageHeight = 300;// ͼƬ�ĸ߶� int columnWidth = 30;// ��Ŀ�� int columnHeight = 200;// ������߶� ChartGraphics chartGraphics = new ChartGraphics(); chartGraphics.image = new BufferedImage(imageWidth, imageHeight, BufferedImage.TYPE_INT_RGB); Graphics graphics = chartGraphics.image.getGraphics(); graphics.setColor(Color.white); graphics.fillRect(0, 0, imageWidth, imageHeight); graphics.setColor(Color.blue); graphics.fill3DRect(X + 1 * columnWidth, columnHeight - h1, columnWidth,h1,true); graphics.setColor(Color.red); graphics.fill3DRect(X + 2 * columnWidth, columnHeight - h2, columnWidth, h2,true); graphics.setColor(Color.yellow); graphics.fill3DRect(X + 3 * columnWidth, columnHeight - h3, columnWidth, h3,true); graphics.setColor(Color.green); graphics.fill3DRect(X + 4 * columnWidth, columnHeight - h4, columnWidth, h4,true); graphics.setColor(Color.orange); graphics.fill3DRect(X + 5 * columnWidth, columnHeight - h5, columnWidth, h5,true); graphics.setColor(Color.cyan); //chartGraphics.createImage("E:\\MyEclipse\\apache-tomcat-6.0.14\\webapps\\pic\\chart.jpg"); }

jsp文件:<%@ page import="org.jfree.chart.ChartFactory,org.jfree.chart.JFreeChart,org.jfree.chart.plot.PlotOrientation,org.jfree.chart.servlet.ServletUtilities,org.jfree.data.category.CategoryDataset,org.jfree.data.general.DatasetUtilities"%><%double[][] data = new double[][] {{672, 766, 223, 540, 126}, {325, 521, 210, 340, 106}, {332, 256, 523, 240, 526} };String[] rowKeys = {"苹果","梨子","葡萄"};String[] columnKeys = {"北京","上海","广州","成都","深圳"};CategoryDataset dataset = DatasetUtilities.createCategoryDataset(rowKeys, columnKeys, data); JFreeChart chart = ChartFactory.createBarChart3D("水果销量统计图","水果","销量",dataset,PlotOrientation.VERTICAL,false,false,false);String filename1 = ServletUtilities.saveChartAsPNG(chart, 500, 300, null, session);String graphURL = request.getContextPath() + "/servletDisplayChart?filename=" + filename1;%> 配置web.xml DisplayChart org.jfree.chart.servlet.DisplayChart DisplayChart /servletDisplayChart

本项目中使用了Spring+Struts2+Hibernate,使用了JFreeChart等，可以生成各种自己想要的问卷。

jfreechart developer guide 1.0.9 英文版

JFreeChart中类的详细介绍和使用说明，以及API帮助文档。让你能够快速制作自己的报表工具

j2EE6.0 JDK16 jFreeChart jQuery1.10.3 Spring Framework 开发参考手册 spring3.0 API Struts2 API WebServices