JFreeChart网页版Demo资源-CSDN文库

共2个文件

jsp：2个

JFreeChart

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两个JFreeChart的Demo.zip （2个子文件）

demo2.jsp 2KB

demo.jsp 2KB

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <%@page import="org.jfree.data.category.CategoryDataset"%> <%@page import="org.jfree.data.category.DefaultCategoryDataset"%> <%@page import="org.jfree.chart.ChartFactory"%> <%@page import="org.jfree.chart.JFreeChart"%> <%@page import="org.jfree.chart.plot.PlotOrientation"%> <%@page import="org.jfree.chart.title.TextTitle"%> <%@page import="org.jfree.chart.plot.CategoryPlot"%> <%@page import="java.awt.Font"%> <%@page import="org.jfree.chart.axis.CategoryAxis"%> <%@page import="org.jfree.chart.servlet.ServletUtilities"%> <%! public CategoryDataset createDataset() //创建柱状图数据集 { DefaultCategoryDataset dataset=new DefaultCategoryDataset(); dataset.setValue(10,"a","管理人员"); dataset.setValue(20,"b","市场人员"); dataset.setValue(40,"c","开发人员"); dataset.setValue(15,"d","其他人员"); return dataset; } public JFreeChart createChart(CategoryDataset dataset) //用数据集创建一个图表 { JFreeChart chart=ChartFactory.createBarChart("hi", "人员分布", "人员数量", dataset, PlotOrientation.VERTICAL, true, true, false); //创建一个JFreeChart chart.setTitle(new TextTitle("某公司组织结构图",new Font("宋体",Font.BOLD+Font.ITALIC,20)));//可以重新设置标题，替换“hi”标题 CategoryPlot plot=(CategoryPlot)chart.getPlot();//获得图标中间部分，即plot CategoryAxis categoryAxis=plot.getDomainAxis();//获得横坐标 categoryAxis.setLabelFont(new Font("宋体",Font.PLAIN,12));//设置横坐标字体 return chart; } %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> </head> <body> <% JFreeChart chart = createChart(createDataset()); String filename = ServletUtilities.saveChartAsPNG(chart,800,600,null,session); String graphURL = request.getContextPath()+"/DisplayChart?filename="+filename; %> <p align="center"> <img src="<%=graphURL %>" width="800" height="600" border="0" usemap="#map0"/> </p> </body> </html>

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