折线图 line.jsp :
<%@ page contentType="text/html;charset=GBK"%>
<%@ page import = "org.jfree.chart.ChartFactory,
org.jfree.chart.ChartPanel,
org.jfree.chart.JFreeChart,
org.jfree.chart.StandardLegend,
org.jfree.chart.axis.NumberAxis,
org.jfree.chart.plot.CategoryPlot,
org.jfree.chart.plot.PlotOrientation,
org.jfree.chart.renderer.LineAndShapeRenderer,
org.jfree.data.CategoryDataset,
org.jfree.data.DefaultCategoryDataset,
org.jfree.chart.servlet.ServletUtilities
"%>
<%
// row keys...
String series1 = "First";
String series2 = "Second";
String series3 = "Third";
// column keys...
String type1 = "Type 1";
String type2 = "Type 2";
String type3 = "Type 3";
String type4 = "Type 4";
String type5 = "Type 5";
String type6 = "Type 6";
String type7 = "Type 7";
String type8 = "Type 8";
// create the dataset...
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
dataset.addValue(1.0, series1, type1);
dataset.addValue(4.0, series1, type2);
dataset.addValue(3.0, series1, type3);
dataset.addValue(5.0, series1, type4);
dataset.addValue(5.0, series1, type5);
dataset.addValue(7.0, series1, type6);
dataset.addValue(7.0, series1, type7);
dataset.addValue(8.0, series1, type8);
dataset.addValue(5.0, series2, type1);
dataset.addValue(7.0, series2, type2);
dataset.addValue(6.0, series2, type3);
dataset.addValue(8.0, series2, type4);
dataset.addValue(4.0, series2, type5);
dataset.addValue(4.0, series2, type6);
dataset.addValue(2.0, series2, type7);
dataset.addValue(1.0, series2, type8);
dataset.addValue(4.0, series3, type1);
dataset.addValue(3.0, series3, type2);
dataset.addValue(2.0, series3, type3);
dataset.addValue(3.0, series3, type4);
dataset.addValue(6.0, series3, type5);
dataset.addValue(3.0, series3, type6);
dataset.addValue(4.0, series3, type7);
dataset.addValue(3.0, series3, type8);
// create the chart...
JFreeChart chart = ChartFactory.createLineChart(
"血压水平分布图", // chart title
"Type", // domain axis label
"Value", // range axis label
dataset, // data
PlotOrientation.VERTICAL, // orientation
true, // include legend
true, // tooltips
false // urls
);
// NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART...
StandardLegend legend = (StandardLegend) chart.getLegend();
legend.setDisplaySeriesShapes(true);
legend.setShapeScaleX(1.5);
legend.setShapeScaleY(1.5);
legend.setDisplaySeriesLines(true);
CategoryPlot plot = chart.getCategoryPlot();
// customise the range axis...
NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
rangeAxis.setAutoRangeIncludesZero(true);
rangeAxis.setUpperMargin(0.20);
rangeAxis.setLabelAngle(Math.PI / 2.0);
LineAndShapeRenderer renderer = (LineAndShapeRenderer) plot.getRenderer();
renderer.setItemLabelsVisible(true);
String filename = ServletUtilities.saveChartAsPNG(chart, 500, 300, null, session);
String graphURL = request.getContextPath() + "/DisplayChart?filename=" + filename;
%>
<img src="<%= graphURL %>" width=500 height=300 border=0 usemap="#<%= filename %>">
XY曲线图 xy.jsp :
<%@ page contentType="text/html;charset=GBK"%>
<%@ page import =" java.awt.*"%>
<%@ page import = " java.awt.geom.Ellipse2D"%>
<%@ page import = " java.io.PrintWriter"%>
<%@ page import = " java.text.SimpleDateFormat"%>
<%@ page import = " java.util.Date"%>
<%@ page import = " java.util.ArrayList"%>
<%@ page import = " java.util.Iterator"%>
<%@ page import = " java.util.Locale"%>
<%@ page import = " java.text.NumberFormat"%>
<%@ page import = " javax.servlet.http.HttpSession"%>
<%@ page import = " org.jfree.data.*"%>
<%@ page import = " org.jfree.chart.*"%>
<%@ page import = " org.jfree.chart.axis.*"%>
<%@ page import = " org.jfree.chart.renderer.BarRenderer"%>
<%@ page import = " org.jfree.chart.renderer.StandardXYItemRenderer"%>
<%@ page import = " org.jfree.chart.renderer.StackedXYAreaRenderer"%>
<%@ page import = " org.jfree.chart.renderer.XYAreaRenderer"%>
<%@ page import = " org.jfree.chart.plot.*"%>
<%@ page import = " org.jfree.chart.entity.*"%>
<%@ page import = " org.jfree.chart.labels.*"%>
<%@ page import = " org.jfree.chart.urls.*"%>
<%@ page import ="org.jfree.chart.servlet.*"%>
<%@ page import = "java.io.PrintWriter"%>
<%@ page import = "java.util.ArrayList"%>
<%@ page import = "java.util.Iterator,org.jfree.data.time.*,java.awt.Font"%>
<%
XYSeries dataSeries = new XYSeries("增长");
for (int i = 0; i <= 10; i++)
{
int x=(int) (100*Math.random());
int y=(int) (100*Math.random());
dataSeries.add(x,y);
}
XYSeries dataSeries1 = new XYSeries("趋势");
for (int j = 0; j <= 100; j++)
{
int x=(int) (100*Math.random());
int y=(int) (100*Math.random());
dataSeries1.add(j,40);
}
XYSeriesCollection xyDataset = new XYSeriesCollection();
xyDataset.addSeries(dataSeries);
xyDataset.addSeries(dataSeries1);
String filename = "";
SimpleDateFormat sdf = new SimpleDateFormat("dd-MMM-yyyy", Locale.UK);
StandardXYToolTipGenerator ttg = new StandardXYToolTipGenerator(StandardXYToolTipGenerator.DEFAULT_TOOL_TIP_FORMAT,sdf,NumberFormat.
getInstance());
TimeSeriesURLGenerator urlg = new TimeSeriesURLGenerator(sdf, "pie_chart.jsp", "series", "hitDate");
// Create the chart object
ValueAxis xAxis = new NumberAxis("X轴坐标");
//x轴坐标
ValueAxis yAxis = new NumberAxis("Y轴坐标");
//y轴坐标
StandardXYItemRenderer renderer = new StandardXYItemRenderer(StandardXYItemRenderer.LINES ,ttg, urlg);
renderer.setShapesFilled(true);
Font font=new Font("黑体",Font.TRUETYPE_FONT, 12);
XYPlot plot = new XYPlot(xyDataset, xAxis, yAxis, renderer);
JFreeChart chart = new JFreeChart("测试曲线图", font, plot, true);
chart.setBackgroundPaint(java.awt.Color.white);
// Write the chart image to the temporary directory
ChartRenderingInfo info = new ChartRenderingInfo(new StandardEntityCollection());
filename = ServletUtilities.saveChartAsPNG(chart, 500, 300, info, session);
String graphURL = request.getContextPath() + "/DisplayChart?filename=" + filename;%>
<html>
<head>
</head>
<body>
<table border=0>
<tr>
<td>
<br>
<img src="<%= graphURL %>" width=500 height=300 border=0 usemap="#<%= filename %>">
</td>
</tr>
</table>
</body>
</html>
时间曲线图 timeserver.jsp :
