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jfreechart例子

一、餅圖
<%@ page language="java" import="java.util.*" pageEncoding="GBK"%>
<jsp:directive.page import="org.jfree.data.category.CategoryDataset"/>
<jsp:directive.page import="org.jfree.data.general.DatasetUtilities"/>
<jsp:directive.page import="org.jfree.chart.JFreeChart"/>
<jsp:directive.page import="org.jfree.chart.ChartFactory"/>
<jsp:directive.page import="org.jfree.chart.plot.CategoryPlot"/>
<jsp:directive.page import="java.awt.Color"/>
<jsp:directive.page import="org.jfree.chart.axis.CategoryAxis"/>
<jsp:directive.page import="java.awt.Font"/>
<jsp:directive.page import="java.io.PipedReader"/>
<jsp:directive.page import="org.jfree.chart.servlet.ServletUtilities"/>
<jsp:directive.page import="org.jfree.data.general.PieDataset"/>
<jsp:directive.page import="org.jfree.data.general.DefaultPieDataset"/>
<%

String[] rowKeys= null;//柱數(shù)據(jù)
String[] columnKeys=null;//刻度數(shù)據(jù)

rowKeys = new String[]{"219.146.1.196","219.146.10.105","219.146.10.116","219.146.10.73"};
columnKeys = new String[]{"2007-02-03","2007-02-04"};

double[][] data = new double[rowKeys.length][columnKeys.length];
data = new double[][]{
??{1022.0,856.0},{676.0,13563.0},{12827.0,10576.0},{0.0,100.0}??
??};
DefaultPieDataset dataset = new DefaultPieDataset();
for(int m=0;m<rowKeys.length;m++){
??? dataset.setValue(rowKeys[m],data[m][0]);
}
JFreeChart chart = ChartFactory.createPieChart3D(
?"this is title......",
?dataset,
?true,
?false,
?false
);
?
chart.setBackgroundPaint(Color.CYAN);
chart.setBorderPaint(Color.RED);
chart.setBorderVisible(true);

String filename = ServletUtilities.saveChartAsPNG(chart, 850, 550, null, session);
String graphURL = request.getContextPath() + "/xx?filename=" + filename;
%>
<br>
<link href="css/default.css" rel="stylesheet" type="text/css">
<center>
<img src="<%= graphURL %>" width=850 height=550 border=0 usemap="#<%= filename %>">

二、柱圖
<%@ page language="java" import="java.util.*" pageEncoding="GBK"%>
<jsp:directive.page import="org.jfree.data.general.DatasetUtilities"/>
<jsp:directive.page import="org.jfree.chart.JFreeChart"/>
<jsp:directive.page import="org.jfree.chart.ChartFactory"/>
<jsp:directive.page import="org.jfree.chart.plot.PlotOrientation"/>
<jsp:directive.page import="java.awt.Color"/>
<jsp:directive.page import="org.jfree.chart.plot.CategoryPlot"/>
<jsp:directive.page import="org.jfree.chart.axis.CategoryAxis"/>
<jsp:directive.page import="org.jfree.chart.axis.CategoryLabelPositions"/>
<jsp:directive.page import="org.jfree.chart.axis.NumberAxis"/>
<jsp:directive.page import="org.jfree.chart.servlet.ServletUtilities"/>
<jsp:directive.page import="org.jfree.data.category.CategoryDataset"/>
<jsp:directive.page import="org.jfree.chart.renderer.category.BarRenderer3D"/>
<jsp:directive.page import="org.jfree.chart.labels.StandardCategoryItemLabelGenerator"/>
<jsp:directive.page import="org.jfree.chart.axis.AxisLocation"/>
<jsp:directive.page import="java.text.DecimalFormat"/>
<%
String[] rowInfo = new String[]{"one","two"};
String[] colInfo = new String[]{"first","second"};
double[][] dataInfo = new double[2][2];
dataInfo = new double[][]{
??{1022.0,856.0},{676.0,13563.0}??
??};
CategoryDataset data = DatasetUtilities.createCategoryDataset(rowInfo,colInfo,dataInfo);
JFreeChart chart = ChartFactory.createBarChart3D("this is test......",
????????????????? "row",
????????????????? "col",
????????????????? data,
????????????????? PlotOrientation.VERTICAL,
????????????????? true,false,false);
chart.setAntiAlias(true);
chart.setBackgroundPaint(Color.WHITE);
chart.setBorderPaint(Color.BLACK);
chart.setBorderVisible(true);

//圖表區(qū)域?qū)ο螅旧线@個對象決定著什么樣式的圖表，創(chuàng)建該對象的時候需要Axis、Renderer以及數(shù)據(jù)集對象的支持
CategoryPlot plot = chart.getCategoryPlot();
plot.setDomainGridlinePaint(Color.RED); //橫坐標(biāo)網(wǎng)格線白色
plot.setDomainGridlinesVisible(true); //可見
plot.setBackgroundPaint(Color.CYAN);

//用于處理圖表的兩個軸：縱軸和橫軸
CategoryAxis axis = plot.getDomainAxis();
axis.setCategoryLabelPositions(CategoryLabelPositions.UP_45);
axis.setAxisLinePaint(Color.RED);
//axis.setLabel("asdfasdfa");
//axis.setUpperMargin(5);
axis.setTickMarksVisible(true);
axis.setAxisLineVisible(true);

NumberAxis numberaxis = (NumberAxis)plot.getRangeAxis();
numberaxis.setAutoTickUnitSelection(true);
numberaxis.setAutoRangeIncludesZero(false);

BarRenderer3D renderer = new BarRenderer3D();

renderer.setItemLabelGenerator(new StandardCategoryItemLabelGenerator());
renderer.setItemLabelsVisible(true);
renderer.setBaseOutlinePaint(Color.BLACK);
//設(shè)置 Wall 的顏色
renderer.setWallPaint(Color.GREEN);
//設(shè)置每種柱的顏色
//renderer.setSeriesPaint(0, new Color(0, 0, 255));
//renderer.setSeriesPaint(1, new Color(0, 100, 255));
//設(shè)置平行柱之間距離
renderer.setItemMargin(0.02);
//顯示每個柱的數(shù)值，并修改該數(shù)值的字體屬性
//renderer.setItemLabelGenerator(new StandardCategoryItemLabelGenerator());
//renderer.setItemLabelsVisible(true);
plot.setRenderer(renderer);

//設(shè)置柱的透明度
plot.setForegroundAlpha(0.8f);
//設(shè)置地區(qū)、銷量的顯示位置
plot.setDomainAxisLocation(AxisLocation.TOP_OR_RIGHT);
plot.setRangeAxisLocation(AxisLocation.BOTTOM_OR_RIGHT);

String filename = ServletUtilities.saveChartAsPNG(chart, 850, 550, null, session);
String graphURL = request.getContextPath() + "/xx?filename=" + filename;
?%>

<center>
<img src="<%= graphURL %>" width=850 height=550 border=0 usemap="#<%= filename %>">

三、折線圖
<%@ page contentType="text/html;charset=GBK"%>
<%@ page import="java.awt.Color"%>
<%@ page import="myjava.TableData"%>
<%@ page import = "org.jfree.chart.ChartFactory,
????????????????? org.jfree.chart.ChartPanel,
????????????????? org.jfree.chart.JFreeChart,
????????????????? org.jfree.chart.DefaultOldLegend,
????????????????? org.jfree.chart.axis.NumberAxis,
? org.jfree.chart.plot.CategoryPlot,
? org.jfree.chart.plot.PlotOrientation,
? org.jfree.chart.renderer.category.LineAndShapeRenderer,
? org.jfree.data.category.CategoryDataset,
? org.jfree.data.category.DefaultCategoryDataset,
? org.jfree.chart.servlet.ServletUtilities
"%>
<%@ page import="org.jfree.chart.axis.CategoryAxis"%>
<%@ page import="org.jfree.chart.axis.CategoryLabelPositions"%>
<%@ page import="org.jfree.data.general.DatasetUtilities"%>
<jsp:directive.page import="org.jfree.chart.labels.StandardCategoryItemLabelGenerator"/>

String[] rowKeys= null;//柱數(shù)據(jù)
String[] columnKeys=null;//刻度數(shù)據(jù)

rowKeys = new String[]{"219.146.1.196","219.146.10.105","219.146.10.116","219.146.10.73"};
columnKeys = new String[]{"2007-02-03","2007-02-04"};

double[][] data = new double[rowKeys.length][columnKeys.length];
data = new double[][]{
??{1022.0,856.0},{676.0,13563.0},{12827.0,10576.0},{0.0,100.0}??
??};
CategoryDataset dataset = DatasetUtilities.createCategoryDataset(rowKeys, columnKeys, data);
JFreeChart chart = ChartFactory.createLineChart(
?????????? "這是測試標(biāo)題．．．",
??????????? "時間",
??????????? "訪問量",???????????????? // range axis label
?????????? dataset,?????????????????? // data
?????????? PlotOrientation.VERTICAL,? // orientation
?????????? true,????????????????????? // include legend
?????????? true,????????????????????? // tooltips
?????????? false????????????????????? // urls
?????? );
chart.setBackgroundPaint(Color.WHITE);? //-----------------------------背景色
chart.setBorderVisible(true);? //--------------------------------------設(shè)置邊框是否可見
chart.setBorderPaint(Color.BLUE);? //-----------------------------------設(shè)置邊框顏色setBorderVisible()必須為true

CategoryPlot plot = chart.getCategoryPlot();
plot.setBackgroundPaint(Color.CYAN);
CategoryAxis domainAxis = plot.getDomainAxis();
domainAxis.setCategoryLabelPositions(CategoryLabelPositions.DOWN_45);
??????? plot.setDomainAxis(domainAxis);
?????? // customise the range axis... 設(shè)置統(tǒng)計圖中只顯示整數(shù)
?????? 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);
?????? renderer.setShapesVisible(true);//series 點（即數(shù)據(jù)點）可見
?????? renderer.setSeriesPaint(0, new Color(0, 0, 255));
?????? renderer.setSeriesPaint(1, new Color(255, 0, 255));
?????? renderer.setSeriesPaint(2, new Color(0, 255, 255));
?????? renderer.setSeriesPaint(3, new Color(0,125,0));
?????? renderer.setItemLabelGenerator(new StandardCategoryItemLabelGenerator());
??? renderer.setItemLabelsVisible(true);
?????
String filename = ServletUtilities.saveChartAsPNG(chart, 850, 550, null, session);
String graphURL = request.getContextPath() + "/xx?filename=" + filename;
%>
<br>
<link href="css/default.css" rel="stylesheet" type="text/css">
<center>
<img src="<%= graphURL %>" width=850 height=550 border=0 usemap="#<%= filename %>">

posted on 2007-02-07 10:44 java_蟈蟈閱讀(4914) 評論(2) 編輯收藏

系統(tǒng)：windows 2000 server
strust+spring+hibernate
Tomcat:5.02.8 (5.5.9)
JDK:1.5
jfreechart-1.0.5
jcommon-1.0.10

信息: validateJarFile(C:\Tomcat 5.0\webapps\foods\WEB-INF\lib\servlet.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class
17:48:27,609 ERROR ContextLoader:200 - Context initialization failed
org.springframework.beans.factory.BeanDefinitionStoreException: Parser configuration exception parsing XML from ServletContext resource [/WEB-INF/ApplicationContext-hibernate.xml]; nested exception is javax.xml.parsers.ParserConfigurationException: Unable to validate using XSD: Your JAXP provider [gnu.xml.dom.JAXPFactory@1558dc] does not support XML Schema. Are you running on Java 1.4 or below with Apache Crimson? Upgrade to Apache Xerces (or Java 1.5) for full XSD support.
Caused by:
javax.xml.parsers.ParserConfigurationException: Unable to validate using XSD: Your JAXP provider [gnu.xml.dom.JAXPFactory@1558dc] does not support XML Schema. Are you running on Java 1.4 or below with Apache Crimson? Upgrade to Apache Xerces (or Java 1.5) for full XSD support.

java.io.FileNotFoundException: Could not open ServletContext resource [/WEB-INF/ApplicationContext-hibernate.xml]

這是什么錯啊...如果不使用jfreechart就不會出錯...幫忙看看回復(fù) 更多評論

# re: jfreechart例子 2008-12-31 12:48 cola.zhang

我也遇到過這樣的問題，你的jar包中是否有一個gnujaxp.jar 啊？如果有的話，把這個包去掉就可以了！回復(fù) 更多評論

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