JFreeChart中画柱状图
工作需要，需要一个饼图，贴出来供大家学习
特别说明，需要下面的包（如果没有，可发邮件）：
jfreechart-1.0.0-rc1.jar
jfreereport-0.8.7-2.jar
jcommon-1.0.0-rc1.jar
junit-3.8.1.jar
E-mail：[email protected]
barChart3D.jsp
<%
/**
*
Title: JFreeChart中画柱状图
*
Description: 一个简单的柱状图,数据为测试数据
*
Copyright: Copyright (c) 2006 www.easydone.com.cn
>*
Company: 北京聚能易成科技有限公司
* @Created on 2006-4-15 23:55
* @authory dirboy
* @version 1.0
*/
%>＜%
/**
* ＜p＞Title: JFreeChart中画柱状图＜/p＞
* ＜p＞Description: 一个简单的柱状图,数据为测试数据＜/p＞
* ＜p＞Copyright: Copyright (c) 2006 www.easydone.com.cn＜/p＞
* ＜p＞Company: 北京聚能易成科技有限公司＜/p＞
* @Created on 2006-4-15 23:55
* @authory dirboy
* @version 1.0
*/
%＞
＜%@ page contentType="text/html; charset=gb2312"%＞
＜ %@page import="org.jfree.data.category.*"%＞
＜ %@page import="java.util.*,java.io.*,java.awt.*"%＞
＜ %@page import="org.jfree.data.*"%＞
＜ %@page import="org.jfree.chart.*"%＞
＜ %@page import="org.jfree.chart.ui.*"%＞
＜ %@page import="org.jfree.chart.plot.*"%＞
＜%@ page import="org.jfree.ui.ApplicationFrame"%＞
＜%@ page import="org.jfree.ui.RefineryUtilities"%＞
＜%@ page import="org.jfree.chart.title.*"%＞
＜%@ page import="org.jfree.chart.servlet.ServletUtilities"%＞
＜%@ page import="org.jfree.chart.urls.*"%＞
＜%@ page import="org.jfree.chart.entity.*"%＞
＜%@ page import="org.jfree.chart.entity.StandardEntityCollection"%＞
＜%@ page import="org.jfree.chart.urls.StandardPieURLGenerator"%＞
＜%
String queryTime = "2006-4-15 23:58";
DefaultCategoryDataset dataSet;
dataSet = new DefaultCategoryDataset();
dataSet.addValue(100,"北京","Gogole");
dataSet.addValue(200,"北京1","baidu");
dataSet.addValue(300,"北京2","sohu");
dataSet.addValue(400,"北京3","sina");
dataSet.addValue(500,"北京","yahoo");
JFreeChart chart=null;
chart = ChartFactory.createBarChart3D (
"11111111111111",
"X Info",
"Y Info",
dataSet,
PlotOrientation.VERTICAL,
true,
true,
false
);
chart.setTitle(queryTime+":测试数据");
chart.getRenderingHints().put(RenderingHints.KEY_TEXT_ANTIALIASING,RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
StandardEntityCollection sec = new StandardEntityCollection();
ChartRenderingInfo info = new ChartRenderingInfo(sec);
String filename = ServletUtilities.saveChartAsPNG(chart, 500, 300, info, session);
String graphURL = request.getContextPath() + "/servlet/DisplayChart?filename=" + filename;
//存储数据到本地硬盘
//ChartUtilities.saveChartAsJPEG(new File("c:/aa.jpeg"), 100, chart, 600, 600);
%＞
＜html＞
＜head＞
＜title＞3D饼图＜/title＞
＜meta http-equiv="Content-Type" content="text/html; charset=gb2312"＞
＜/head＞
＜body leftmargin="2" topmargin="0" marginwidth="0" marginheight="0"＞
＜table width="100%" border="0" align="center" cellpadding="1" cellspacing="1" class="border"＞
＜tr＞
＜td width="70" height="30"＞【＜a href="＜%=graphURL%＞"＞下载＜/a＞】＜/td＞
＜/tr＞
＜/table＞
＜br＞
＜table width="100%" border="0" align="center" cellpadding="1" cellspacing="1" class="border"＞
＜tr＞
＜td＞＜img src="＜%= graphURL %＞" width=500 height=300 border=0 usemap="#map0"＞＜/td＞
＜/tr＞
＜/table＞
＜/html＞