jfreechart spingmvc

后台controller

package com.pdcss.project.controller;import java.awt.BasicStroke;import java.awt.Color;import java.awt.Font;import java.io.IOException;import java.io.PrintWriter;import java.io.Writer;import java.text.DecimalFormat;import java.text.NumberFormat;import javacommon.base.BaseSpringController;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import javax.servlet.http.HttpSession;import org.jfree.chart.ChartFactory;import org.jfree.chart.ChartRenderingInfo;import org.jfree.chart.ChartUtilities;import org.jfree.chart.JFreeChart;import org.jfree.chart.axis.AxisLocation;import org.jfree.chart.axis.CategoryAxis;import org.jfree.chart.axis.NumberAxis;import org.jfree.chart.axis.ValueAxis;import org.jfree.chart.entity.StandardEntityCollection;import org.jfree.chart.labels.IntervalXYItemLabelGenerator;import org.jfree.chart.labels.StandardCategoryItemLabelGenerator;import org.jfree.chart.labels.StandardCategorySeriesLabelGenerator;import org.jfree.chart.labels.StandardCategoryToolTipGenerator;import org.jfree.chart.labels.StandardPieSectionLabelGenerator;import org.jfree.chart.labels.StandardPieToolTipGenerator;import org.jfree.chart.plot.CategoryPlot;import org.jfree.chart.plot.PiePlot;import org.jfree.chart.plot.PiePlot3D;import org.jfree.chart.plot.PlotOrientation;import org.jfree.chart.plot.XYPlot;import org.jfree.chart.renderer.category.BarRenderer;import org.jfree.chart.renderer.category.BarRenderer3D;import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;import org.jfree.chart.servlet.ServletUtilities;import org.jfree.chart.title.TextTitle;import org.jfree.chart.urls.StandardCategoryURLGenerator;import org.jfree.chart.urls.StandardPieURLGenerator;import org.jfree.chart.urls.StandardXYURLGenerator;import org.jfree.data.category.CategoryDataset;import org.jfree.data.category.DefaultCategoryDataset;import org.jfree.data.general.Dataset;import org.jfree.data.general.DefaultPieDataset;import org.jfree.data.xy.XYDataset;import org.jfree.data.xy.XYSeries;import org.jfree.data.xy.XYSeriesCollection;import org.jfree.ui.RectangleInsets;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.servlet.ModelAndView;@Controller@RequestMapping("/pages/Jfree")public class JfreeController extends BaseSpringController {@RequestMapping("/showXYLine")public ModelAndView showXYLine(HttpServletRequest request,HttpServletResponse response) throws Exception {response.setContentType("text/html;charset=UTF-8");HttpSession session = request.getSession();Writer out = response.getWriter();String filename = createXYLineChart(session,"统计图","X轴","Y轴",550, 450, "imgMap", new PrintWriter(out));String file = request.getContextPath()+ "/servlet/DisplayChart?filename=" + filename;ModelAndView mav = new ModelAndView();mav.addObject("file", file);mav.setViewName("/jfree");return mav;}@RequestMapping("/showBar3D")public ModelAndView showBar3D(HttpServletRequest request,HttpServletResponse response) throws Exception {response.setContentType("text/html;charset=UTF-8");HttpSession session = request.getSession();Writer out = response.getWriter();String filename = createBarChart(getCategoryBarDataset(), "招生信息总览","应报与实报对照", "人数", 550, 450, session, new PrintWriter(out),"imgMap", true);String file = request.getContextPath()+ "/servlet/DisplayChart?filename=" + filename;ModelAndView mav = new ModelAndView();mav.addObject("file", file);mav.setViewName("/jfree");return mav;}@RequestMapping("/detailBar3D")public ModelAndView detailBar3D(HttpServletRequest request,HttpServletResponse response) throws Exception {response.setContentType("text/html;charset=UTF-8");request.setCharacterEncoding("UTF-8");String type = request.getParameter("type");type = new String(type.getBytes("ISO-8859-1"), "UTF-8");String school = request.getParameter("school");school = new String(school.getBytes("ISO-8859-1"), "UTF-8");CategoryDataset data = getCategoryBar3DDataset(type, school);HttpSession session = request.getSession();Writer out = response.getWriter();String filename = createBarChart(data, school + type + "男女情况3D图","男女人数", "人数", 550, 450, session, new PrintWriter(out),"imgMap", true);String file = request.getContextPath()+ "/servlet/DisplayChart?filename=" + filename;ModelAndView mav = new ModelAndView();mav.addObject("file", file);mav.setViewName("/jfree");return mav;}@RequestMapping("/showBar")public ModelAndView showBar(HttpServletRequest request,HttpServletResponse response) throws Exception {response.setContentType("text/html;charset=UTF-8");HttpSession session = request.getSession();Writer out = response.getWriter();String filename = createBarChart(getCategoryBarDataset(), "招生信息总览","应报与实报对照", "人数", 550, 450, session, new PrintWriter(out),"imgMap", false);String file = request.getContextPath()+ "/servlet/DisplayChart?filename=" + filename;ModelAndView mav = new ModelAndView();mav.addObject("file", file);mav.setViewName("/jfree");return mav;}@RequestMapping("/detailBar")public ModelAndView detailBar(HttpServletRequest request,HttpServletResponse response) throws Exception {response.setContentType("text/html;charset=UTF-8");request.setCharacterEncoding("UTF-8");String type = request.getParameter("type");type = new String(type.getBytes("ISO-8859-1"), "UTF-8");String school = request.getParameter("school");school = new String(school.getBytes("ISO-8859-1"), "UTF-8");CategoryDataset data = getCategoryBar3DDataset(type, school);HttpSession session = request.getSession();Writer out = response.getWriter();String filename = createBarChart(data, school + type + "男女情况平面图","男女人数", "人数", 550, 450, session, new PrintWriter(out),"imgMap", false);String file = request.getContextPath()+ "/servlet/DisplayChart?filename=" + filename;ModelAndView mav = new ModelAndView();mav.addObject("file", file);mav.setViewName("/jfree");return mav;}@RequestMapping("/showPie3D")public ModelAndView showPie3D(HttpServletRequest request,HttpServletResponse response) throws Exception {response.setContentType("text/html;charset=UTF-8");HttpSession session = request.getSession();Writer out = response.getWriter();String filename = createPieChart(getPieDataset(), "全国水果产量图", 550, 400,session, new PrintWriter(out), "imgMap", true);String file = request.getContextPath()+ "/servlet/DisplayChart?filename=" + filename;ModelAndView mav = new ModelAndView();mav.addObject("file", file);mav.setViewName("/jfree");return mav;}@RequestMapping("/detailPie3D")public ModelAndView detailPie3D(HttpServletRequest request,HttpServletResponse response) throws Exception {response.setContentType("text/html;charset=UTF-8");request.setCharacterEncoding("UTF-8");String fruit = request.getParameter("fruit");fruit = new String(fruit.getBytes("ISO-8859-1"), "UTF-8");DefaultPieDataset data = getDetailPieDataSet(fruit);HttpSession session = request.getSession();Writer out = response.getWriter();String filename = createPieChart(data, "全国" + fruit + "产量图", 550, 400,session, new PrintWriter(out), "imgMap", true);String file = request.getContextPath()+ "/servlet/DisplayChart?filename=" + filename;ModelAndView mav = new ModelAndView();mav.addObject("file", file);mav.setViewName("/jfree");return mav;}@RequestMapping("/showPie")public ModelAndView showPie(HttpServletRequest request,HttpServletResponse response) throws Exception {response.setContentType("text/html;charset=UTF-8");HttpSession session = request.getSession();Writer out = response.getWriter();String filename = createPieChart(getPieDataset(), "全国水果产量图", 550, 400,session, new PrintWriter(out), "imgMap", false);String file = request.getContextPath()+ "/servlet/DisplayChart?filename=" + filename;ModelAndView mav = new ModelAndView();mav.addObject("file", file);mav.setViewName("/jfree");return mav;}@RequestMapping("/detailPie")public ModelAndView detailPie(HttpServletRequest request,HttpServletResponse response) throws Exception {response.setContentType("text/html;charset=UTF-8");request.setCharacterEncoding("UTF-8");String fruit = request.getParameter("fruit");fruit = new String(fruit.getBytes("ISO-8859-1"), "UTF-8");DefaultPieDataset data = getDetailPieDataSet(fruit);HttpSession session = request.getSession();Writer out = response.getWriter();String filename = createPieChart(data, "全国" + fruit + "产量图", 550, 400,session, new PrintWriter(out), "imgMap", false);String file = request.getContextPath()+ "/servlet/DisplayChart?filename=" + filename;ModelAndView mav = new ModelAndView();mav.addObject("file", file);mav.setViewName("/jfree");return mav;}public DefaultPieDataset getDetailPieDataSet(String fruit) {DefaultPieDataset data = new DefaultPieDataset();if ("苹果".equals(fruit)) {data.setValue("山东", 100);data.setValue("广东", 200);data.setValue("湖南", 300);data.setValue("湖北", 150);data.setValue("四川", 150);data.setValue("重庆", 50);data.setValue("云南", 250);}if ("梨子".equals(fruit)) {data.setValue("山东", 150);data.setValue("广东", 250);data.setValue("湖南", 350);data.setValue("湖北", 150);data.setValue("四川", 450);data.setValue("重庆", 100);data.setValue("云南", 550);}if ("葡萄".equals(fruit)) {data.setValue("山东", 150);data.setValue("广东", 250);data.setValue("湖南", 650);data.setValue("湖北", 150);data.setValue("四川", 750);data.setValue("重庆", 500);data.setValue("云南", 550);}if ("香蕉".equals(fruit)) {data.setValue("山东", 150);data.setValue("广东", 250);data.setValue("湖南", 650);data.setValue("湖北", 150);data.setValue("四川", 750);data.setValue("重庆", 1500);data.setValue("云南", 550);} else {data.setValue("山东", 150);data.setValue("广东", 250);data.setValue("湖南", 650);data.setValue("湖北", 150);data.setValue("四川", 750);data.setValue("重庆", 1500);data.setValue("云南", 1550);}return data;}public DefaultPieDataset getPieDataset() {DefaultPieDataset pieDataset = new DefaultPieDataset();pieDataset.setValue("苹果", 1000);pieDataset.setValue("梨子", 2000);pieDataset.setValue("葡萄", 3000);pieDataset.setValue("香蕉", 4000);pieDataset.setValue("荔枝", 5000);return pieDataset;}public CategoryDataset getCategoryBar3DDataset(String type, String school) {DefaultCategoryDataset dataset = new DefaultCategoryDataset();if ("计划".equals(type)) {if ("清华大学".equals(school)) {dataset.addValue(150, "男", "清华大学");dataset.addValue(50, "女", "清华大学");} else if ("天津大学".equals(school)) {dataset.addValue(60, "男", "天津大学");dataset.addValue(40, "女", "天津大学");} else {dataset.addValue(130, "男", "郑州大学");dataset.addValue(70, "女", "郑州大学");}}if ("实报".equals(type)) {if ("清华大学".equals(school)) {dataset.addValue(150, "男", "清华大学");dataset.addValue(250, "女", "清华大学");} else if ("天津大学".equals(school)) {dataset.addValue(120, "男", "天津大学");dataset.addValue(85, "女", "天津大学");} else {dataset.addValue(170, "男", "郑州大学");dataset.addValue(115, "女", "郑州大学");}}return dataset;}public CategoryDataset getCategoryBarDataset() {DefaultCategoryDataset dataset = new DefaultCategoryDataset();dataset.addValue(200, "计划", "清华大学");dataset.addValue(400, "实报", "清华大学");dataset.addValue(100, "计划", "天津大学");dataset.addValue(205, "实报", "天津大学");dataset.addValue(200, "计划", "郑州大学");dataset.addValue(285, "实报", "郑州大学");return dataset;}private  XYDataset getXYDataset() {  XYSeries xyseries = new XYSeries("第一条线"); // 先产生XYSeries 对象  xyseries.add(1.0D, 1.0D);  xyseries.add(2D, 4D);  xyseries.add(3D, 3D);  xyseries.add(4D, 5D);  xyseries.add(5D, 5D);  xyseries.add(6D, 7D);  xyseries.add(7D, 7D);  xyseries.add(8D, 8D);  XYSeries xyseries1 = new XYSeries("第二条线");  xyseries1.add(1.0D, 5D);  xyseries1.add(2D, 7D);  xyseries1.add(3D, 6D);  xyseries1.add(4D, 8D);  xyseries1.add(5D, 4D);  xyseries1.add(6D, 4D);  xyseries1.add(7D, 2D);  xyseries1.add(8D, 1.0D);  XYSeries xyseries2 = new XYSeries("第三条线");  xyseries2.add(3D, 4D);  xyseries2.add(4D, 3D);  xyseries2.add(5D, 2D);  xyseries2.add(6D, 3D);  xyseries2.add(7D, 6D);  xyseries2.add(8D, 3D);  xyseries2.add(9D, 4D);  xyseries2.add(10D, 3D);  XYSeriesCollection xyseriescollection = new XYSeriesCollection(); // 再用XYSeriesCollection添加入XYSeries                   // 对象  xyseriescollection.addSeries(xyseries);  xyseriescollection.addSeries(xyseries1);  xyseriescollection.addSeries(xyseries2);  return xyseriescollection; }public  String createXYLineChart(HttpSession session,String title,String xtitle,String ytitle,int width,int height,String useMap,PrintWriter pw) {  XYDataset xydataset = getXYDataset();  String filename = "";    JFreeChart jfreechart = ChartFactory.createXYLineChart(    title,    //图表标题名称   xtitle,    //横坐标显示标签    ytitle,   //纵坐标显示标签    xydataset,  //数据源    PlotOrientation.VERTICAL, //PlotOrientation.VERTICAL-->垂直显示、PlotOrientation.HORIZONTAL-->水平显示    true,    //是否显示图例（对于简单的柱状图必须是false）    true,    //是否生产工具    true   //是否生成URL链接  );  jfreechart.setTitle(new TextTitle(title,new Font("黑体",Font.ITALIC,20)));//重新设置图表标题，改变字体  jfreechart.getTitle().setFont(new Font("黑体",Font.ITALIC,20)); //解决标题乱码     jfreechart.setBackgroundPaint(Color.white); //设定背景色为白色    XYPlot xyplot = (XYPlot) jfreechart.getPlot(); // 获得 plot：XYPlot！！    xyplot.setBackgroundPaint(Color.lightGray); //设定图表数据显示部分背景色    xyplot.setDomainGridlinePaint(Color.white); //横坐标网格线白色    xyplot.setDomainGridlinesVisible(true); //网格线:true-->可见,false-->不可见    xyplot.setRangeGridlinePaint(Color.white); //纵坐标网格线白色    xyplot.setAxisOffset(new RectangleInsets(5D, 5D, 5D, 5D)); // 设定坐标轴与图表数据显示部分距离    ValueAxis categoryAxis = xyplot.getDomainAxis();//取得横轴  //categoryAxis.setCategoryLabelPositions(CategoryLabelPositions.UP_45);//设置分类标签以45度角倾斜    categoryAxis.setLabelFont(new Font("宋体",Font.TYPE1_FONT,16));//设置横轴显示标签的字体  categoryAxis.setTickLabelFont(new Font("宋体", Font.TYPE1_FONT, 16));     //解决横坐标乱码  NumberAxis numberAxis = (NumberAxis)xyplot.getRangeAxis();//取得纵轴    numberAxis.setLabelFont(new Font("宋体",Font.TYPE1_FONT,16));//设置纵轴显示标签的字体    numberAxis.setTickLabelFont(new Font("宋体", Font.TYPE1_FONT, 16));     //解决纵坐标乱码    numberAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());//使纵坐标的最小单位格为整数    numberAxis.setAutoRangeIncludesZero(true);    // 获得 renderer 注意这里是XYLineAndShapeRenderer ！！  XYLineAndShapeRenderer xylineandshaperenderer = (XYLineAndShapeRenderer) xyplot    .getRenderer();  xylineandshaperenderer.setShapesVisible(true); // 数据点可见  xylineandshaperenderer.setShapesFilled(true); // 数据点被填充即不是空心点    xylineandshaperenderer.setSeriesLinesVisible(0, false); //第一个XYSeries数据点间连线不可见  xylineandshaperenderer.setSeriesShapesVisible(1, false); //第二个XYSeries数据点不可见  xyplot.setRenderer(xylineandshaperenderer);  xylineandshaperenderer.setSeriesStroke(0, new BasicStroke(2.0F, 1, 1, 1.0F,   new float[] {10F, 6F}, 0.0F)); //定义series为”First”的（即series1）点之间的连线 ，这里是虚线，默认是直线  xylineandshaperenderer.setSeriesStroke(1, new BasicStroke(2.0F, 1, 1, 1.0F,   new float[] {6F, 6F}, 0.0F)); //定义series为”Second”的（即series2）点之间的连线  xylineandshaperenderer.setSeriesStroke(2, new BasicStroke(2.0F, 1, 1, 1.0F,   new float[] {2.0F, 6F}, 0.0F)); //定义series为”Third”的（即series3）点之间的连线   xylineandshaperenderer.setBaseItemLabelGenerator(new IntervalXYItemLabelGenerator("({1},{2})",NumberFormat.getNumberInstance(),NumberFormat.getNumberInstance()));  xylineandshaperenderer.setURLGenerator(new StandardXYURLGenerator("showXYLine.do","seriesName","itemName"));  //设置底部标题字体  xylineandshaperenderer.setLegendTextFont(0, new Font("宋体",Font.TYPE1_FONT,16));  xylineandshaperenderer.setLegendTextFont(1, new Font("宋体",Font.TYPE1_FONT,16));  xylineandshaperenderer.setLegendTextFont(2, new Font("宋体",Font.TYPE1_FONT,16));  StandardEntityCollection sec = new StandardEntityCollection();  ChartRenderingInfo info = new ChartRenderingInfo(sec);try {filename = ServletUtilities.saveChartAsPNG(jfreechart, width, height,info, session);ChartUtilities.writeImageMap(pw, useMap, info, false);// 输出MAP信息pw.flush();} catch (IOException e) {e.printStackTrace();}return filename;}public String createBarChart(CategoryDataset dataset, String title,String xtitle, String ytitle, int width, int height,HttpSession session, PrintWriter pw, String useMap, boolean is3D) {String filename = "";JFreeChart chart = ChartFactory.createBarChart3D(title,// 图表标题xtitle,// 目录轴的显示标签(x轴)ytitle,// 数值轴的显示标签（y轴）dataset, PlotOrientation.VERTICAL,// 图表方向：水平、垂直true,// 是否显示图例(对于简单的柱状图必须是false)true,// 是否tooltiptrue// 是否生成URL链接);Font font = new Font("宋体", Font.BOLD, 16);TextTitle barTitle = new TextTitle(title, font);// 设置正上方的标题chart.setTitle(barTitle);// 设置底部标题chart.getLegend().setItemFont(new Font("宋体", Font.PLAIN, 12));//chart.getLegend().setItemLabelPadding(new RectangleInsets());CategoryPlot plot = chart.getCategoryPlot();// 获得图表区域对象// 设置图表的纵轴和横轴org.jfree.chart.axis.CategoryAxisCategoryAxis domainAxis = plot.getDomainAxis();// X轴domainAxis.setLowerMargin(0.1);// 设置距离图片左端距离此时为10%domainAxis.setUpperMargin(0.1);// 设置距离图片右端距离此时为百分之10domainAxis.setCategoryLabelPositionOffset(10);// 图表横轴与标签的距离(10像素)domainAxis.setCategoryMargin(0.2);// 横轴标签之间的距离20%// 设置X坐标上的文字domainAxis.setTickLabelFont(font);// 设置X轴标题domainAxis.setLabelFont(font);// domainAxis.setMaximumCategoryLabelLines(1);// domainAxis.setMaximumCategoryLabelWidthRatio(0);// 设定柱子的属性ValueAxis rangeAxis = plot.getRangeAxis();rangeAxis.setUpperMargin(0.1);// 设置最高的一个柱与图片顶端的距离(最高柱的10%)// 设置Y坐标上的文字rangeAxis.setTickLabelFont(font);// 设置Y轴标题rangeAxis.setLabelFont(font);// 设置图表的颜色// BarRenderer3D renderer = new BarRenderer3D();BarRenderer renderer;if (is3D) {renderer = new BarRenderer3D();renderer.setBaseToolTipGenerator(new StandardCategoryToolTipGenerator());renderer.setBaseItemURLGenerator(new StandardCategoryURLGenerator("detailBar3D.do", "type", "school"));} else {renderer = new BarRenderer();renderer.setBaseToolTipGenerator(new StandardCategoryToolTipGenerator());renderer.setBaseItemURLGenerator(new StandardCategoryURLGenerator("detailBar.do", "type", "school"));}// 显示每个柱的数值，并修改该数值的字体属性renderer.setIncludeBaseInRange(true);renderer.setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator("{0}={2}人",NumberFormat.getNumberInstance()));renderer.setBaseOutlinePaint(Color.red);renderer.setSeriesPaint(0, new Color(0, 255, 255));// 计划柱子的颜色为青色renderer.setSeriesOutlinePaint(0, Color.BLACK);// 边框为黑色renderer.setSeriesPaint(1, new Color(0, 255, 0));// 实报柱子的颜色为绿色renderer.setSeriesOutlinePaint(1, Color.red);// 边框为红色renderer.setItemMargin(0.1);// 组内柱子间隔为组宽的10%//java.lang.String labelFormat:"{0}={1}({2})":会显示成：apple=120(5%) //java.text.NumberFormat类有三个方法可以产生下列数据的标准格式化器：//数字：NumberFormat.getNumberInstance();//货币：NumberFormat.getCurrencyInstance();//百分数：NumberFormat.getPercentInstance();//设置底部renderer.setLegendItemLabelGenerator(new StandardCategorySeriesLabelGenerator("{0}"));renderer.setBaseItemLabelsVisible(true);plot.setRenderer(renderer);// 使用我们设计的效果// 设置纵横坐标的显示位置plot.setDomainAxisLocation(AxisLocation.BOTTOM_OR_LEFT);// 学校显示在下端(柱子竖直)或左侧(柱子水平)plot.setRangeAxisLocation(AxisLocation.BOTTOM_OR_LEFT); // 人数显示在下端(柱子水平)或左侧(柱子竖直)StandardEntityCollection sec = new StandardEntityCollection();ChartRenderingInfo info = new ChartRenderingInfo(sec);try {filename = ServletUtilities.saveChartAsPNG(chart, width, height,info, session);ChartUtilities.writeImageMap(pw, useMap, info, false);// 输出MAP信息pw.flush();} catch (IOException e) {e.printStackTrace();}return filename;}public String createPieChart(Dataset dataset, String title, int width,int height, HttpSession session, PrintWriter pw, String useMap,boolean is3D) {String filename = "";PiePlot plot = null;if (is3D) {plot = new PiePlot3D((DefaultPieDataset) dataset);// 3D饼图plot.setURLGenerator(new StandardPieURLGenerator("detailPie3D.do","fruit", "pieIdex"));// 设定热区超链接} else {plot = new PiePlot((DefaultPieDataset) dataset);plot.setURLGenerator(new StandardPieURLGenerator("detailPie.do","fruit", "pieIdex"));// 设定热区超链接}plot.setPieIndex(1);JFreeChart chart = new JFreeChart("", JFreeChart.DEFAULT_TITLE_FONT,plot, true);chart.setBackgroundPaint(java.awt.Color.white);// 可选，设置图片背景色chart.setTitle(title);// 可选，设置图片标题// 指定饼图轮廓线的颜色// plot.setBaseSectionOutlinePaint(Color.BLACK);// plot.setBaseSectionPaint(Color.BLACK);plot.setToolTipGenerator(new StandardPieToolTipGenerator());plot.setNoDataMessage("无对应数据显示");// 图片中显示百分比:默认方式// plot.setLabelGenerator(new// StandardPieSectionLabelGenerator(StandardPieToolTipGenerator.DEFAULT_TOOLTIP_FORMAT));// 图片中显示百分比:自定义方式，{0} 表示选项， {1} 表示数值， {2} 表示所占比例 ,小数点后两位plot.setLabelGenerator(new StandardPieSectionLabelGenerator("{0}={1}({2})", NumberFormat.getNumberInstance(),new DecimalFormat("0.00%")));// 图例显示百分比:自定义方式， {0} 表示选项， {1} 表示数值， {2} 表示所占比例plot.setLegendLabelGenerator(new StandardPieSectionLabelGenerator("{0}={1}({2})"));// 设置背景色为白色chart.setBackgroundPaint(Color.white);// 指定图片的透明度(0.0-1.0)plot.setForegroundAlpha(0.8f);// 指定显示的饼图上圆形(true)还椭圆形(false)plot.setCircular(true);// 设置第一个 饼块section 的开始位置，默认是12点钟方向plot.setStartAngle(90);plot.setLabelFont(new Font("宋体", Font.BOLD, 12));chart.getLegend().setItemFont(new Font("宋体", Font.BOLD, 12));StandardEntityCollection sec = new StandardEntityCollection();ChartRenderingInfo info = new ChartRenderingInfo(sec);try {filename = ServletUtilities.saveChartAsPNG(chart, 500, 300, info,session);ChartUtilities.writeImageMap(pw, useMap, info, false);// 输出MAP信息pw.flush();} catch (IOException e) {e.printStackTrace();}return filename;}}

2.web.xml配置文件：

<servlet>    <servlet-name>springmvc</servlet-name>    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>    <load-on-startup>1</load-on-startup></servlet><servlet-mapping>    <servlet-name>springmvc</servlet-name>    <url-pattern>*.do</url-pattern></servlet-mapping><servlet><servlet-name>DisplayChart</servlet-name><servlet-class>org.jfree.chart.servlet.DisplayChart</servlet-class></servlet><servlet-mapping><servlet-name>DisplayChart</servlet-name><url-pattern>/servlet/DisplayChart</url-pattern></servlet-mapping>

3、springmvc_servlet.xml配置文件：

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xmlns:p="http://www.springframework.org/schema/p"     xmlns:context="http://www.springframework.org/schema/context"    xsi:schemaLocation="        http://www.springframework.org/schema/beans         http://www.springframework.org/schema/beans/spring-beans-2.5.xsd        http://www.springframework.org/schema/context         http://www.springframework.org/schema/context/spring-context-2.5.xsd"    default-autowire="byName"   ><!-- 自动搜索@Controller标注的类 --><context:component-scan base-package="com.**.controller"/><bean class="cn.org.rapid_framework.spring.web.servlet.mvc.support.ControllerClassNameHandlerMapping" ><!-- <property name="caseSensitive" value="true"/> --><!-- 前缀可选 --><property name="pathPrefix" value="/pages"></property><property name="interceptors"><bean class="com.pdcss.project.inteceptor.TimeBasedAccessInterceptor"/></property></bean>       <!-- Default ViewResolver -->    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>        <property name="prefix" value=""/>        <property name="suffix" value=".jsp"></property>    </bean>        <bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource" p:basename="i18n/messages"/>    <!-- Mapping exception to the handler view -->    <bean id="exceptionResolver" class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">        <property name="exceptionMappings">            <props>            </props>        </property>    </bean></beans>

4、前台jsp页面：jfree.jsp:

<%@ page contentType="text/html;charset=UTF-8"%>   <HTML>       <HEAD>           <META http-equiv=Content-Type content="text/html; charset=UTF-8">       </HEAD>       <BODY>           <P ALIGN="CENTER">               <img src="${requestScope.file }" border=0 usemap="#imgMap">           </P>       </BODY>   </HTML>