利用jFreeChart插件生产各种图形的报表
利用jFreeChart插件生产各种图形的报表
1.添加基于maven的依赖包
<!-- JfreeChart报表依赖 --> <dependency> <groupId>jfree</groupId> <artifactId>jfreechart</artifactId> <version>1.0.13</version> </dependency>
2.修改web.xml添加JfreeChart报表设置
<!-- JfreeChart报表设置 --> <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>/DisplayChart</url-pattern> </servlet-mapping>
3.Controller
//获得单一柱状图形报表 @RequestMapping(value = "/ticket/getBarChart",method = {RequestMethod.GET,RequestMethod.POST}) public ModelAndView getBarChart(HttpServletRequest request, HttpServletResponse response )throws Exception{ JSONArray jsonArray = new JSONArray();//用于存放数据集 Map<String, Integer> map = new HashMap<String, Integer>(); map.put("化学", 40); map.put("生物学", 50); map.put("物理学", 30); map.put("计算机", 70); map.put("毛中概论", 60); String title = "课堂人数报表"; String DomainAxisLabelText = "课程"; String RangeAxisLabelText = "人数"; String chartURL = jfreeChartUtil.getSigleChart(request, title, DomainAxisLabelText, RangeAxisLabelText, map); ModelAndView modelAndView = new ModelAndView(); modelAndView.addObject("chartURL", chartURL); modelAndView.setViewName("/ticket/choose/barChart"); return modelAndView; } //获得多维柱状图形报表 @RequestMapping(value = "/ticket/getBarChart1",method = {RequestMethod.GET,RequestMethod.POST}) public ModelAndView getBarChart1(HttpServletRequest request, HttpServletResponse response )throws Exception{ double [][]data=new double[][]{{1320,1110,1123,321},{720,210,1423,1321},{830,1310,123,521},{400,1110,623,321}}; String []rowKeys={"苹果","香蕉","橘子","梨子"}; String []columnKeys={"深圳","北京","上海","南京"}; String title = "水果销量报表"; String DomainAxisLabelText = "水果"; String RangeAxisLabelText = "销量"; String chartURL = jfreeChartUtil.getManyChart(request, rowKeys, columnKeys, data, title, DomainAxisLabelText, RangeAxisLabelText); ModelAndView modelAndView = new ModelAndView(); modelAndView.addObject("chartURL", chartURL); modelAndView.setViewName("/ticket/choose/barChart"); return modelAndView; } //获得饼状图形报表 @RequestMapping(value = "/ticket/getPieChart",method = {RequestMethod.GET,RequestMethod.POST}) public ModelAndView getPieChart(HttpServletRequest request, HttpServletResponse response )throws Exception{ String title = "万达乐园系统收入分布表"; String subTitle = "2017年度"; Map<String, Integer> dataset = new HashMap<String, Integer>(); dataset.put("西双版纳", 1200); dataset.put("南昌", 960); dataset.put("合肥", 2600); dataset.put("武汉", 3000); dataset.put("哈尔滨", 1300); dataset.put("长白山", 1700); String chartURL = jfreeChartUtil.getPieChart(request, dataset, title, subTitle); ModelAndView modelAndView = new ModelAndView(); modelAndView.addObject("chartURL", chartURL); modelAndView.setViewName("/ticket/choose/barChart"); return modelAndView; } //获得时序折线图形报表 @RequestMapping(value = "/ticket/getTimeLineChart",method = {RequestMethod.GET,RequestMethod.POST}) public ModelAndView getTimeLineChart(HttpServletRequest request, HttpServletResponse response )throws Exception{ List<Map<Integer, Integer>> listData = new ArrayList<Map<Integer,Integer>>(); Map<Integer, Integer> map1 = new HashMap<Integer, Integer>(); Map<Integer, Integer> map2 = new HashMap<Integer, Integer>(); for(int i=1;i<13;i++){ map1.put(i, 300*i%1000); map2.put(i, 250*i%1000); } listData.add(map1); listData.add(map2); String [] subTiles = {"A网站访问量统计","B网站访问量统计"}; String Tile= "网站交互量统计时间折线图"; String DomainAxisLabelText = "月份"; String RangeAxisLabelText="访问量"; String subTile = "2016年度"; String chartURL = jfreeChartUtil.genTimeLineChart1(request, listData, subTile,subTiles, Tile, DomainAxisLabelText, RangeAxisLabelText); ModelAndView modelAndView = new ModelAndView(); modelAndView.addObject("chartURL", chartURL); modelAndView.setViewName("/ticket/choose/barChart"); return modelAndView; } //获得折线图报表 @RequestMapping(value = "/ticket/getLineChart",method = {RequestMethod.GET,RequestMethod.POST}) public ModelAndView getLineChart(HttpServletRequest request, HttpServletResponse response )throws Exception{ String chartURL = jfreeChartUtil.getLineChart(request); ModelAndView modelAndView = new ModelAndView(); modelAndView.addObject("chartURL", chartURL); modelAndView.setViewName("/ticket/choose/barChart"); return modelAndView; } //获得全部 @RequestMapping(value = "/ticket/getAllChart",method = {RequestMethod.GET,RequestMethod.POST}) public ModelAndView getAllChart(HttpServletRequest request, HttpServletResponse response )throws Exception{ //折线图 String chartURL = jfreeChartUtil.getLineChart(request); //时序图 List<Map<Integer, Integer>> listData = new ArrayList<Map<Integer,Integer>>(); Map<Integer, Integer> map1 = new HashMap<Integer, Integer>(); Map<Integer, Integer> map2 = new HashMap<Integer, Integer>(); for(int i=1;i<13;i++){ map1.put(i, 300*i%1000); map2.put(i, 250*i%1000); } listData.add(map1); listData.add(map2); String [] subTiles = {"A网站访问量统计","B网站访问量统计"}; String Tile= "网站交互量统计时间折线图"; String DomainAxisLabelText = "月份"; String RangeAxisLabelText="访问量"; String subTile = "2016年度"; String chartURL1 = jfreeChartUtil.genTimeLineChart1(request, listData, subTile,subTiles, Tile, DomainAxisLabelText, RangeAxisLabelText); //饼状图 String title = "万达乐园系统收入分布表"; String subTitle = "2017年度"; Map<String, Integer> dataset = new HashMap<String, Integer>(); dataset.put("西双版纳", 1200); dataset.put("南昌", 960); dataset.put("合肥", 2600); dataset.put("武汉", 3000); dataset.put("哈尔滨", 1300); dataset.put("长白山", 1700); String chartURL2 = jfreeChartUtil.getPieChart(request, dataset, title, subTitle); //多维柱状图 double [][]data=new double[][]{{1320,1110,1123,321},{720,210,1423,1321},{830,1310,123,521},{400,1110,623,321}}; String []rowKeys={"乐园","冰雪","秀","茂"}; String []columnKeys={"深圳","北京","上海","南京"}; String title1 = "产品销量报表"; String DomainAxisLabelText1 = "产品"; String RangeAxisLabelText1 = "销量"; String chartURL3 = jfreeChartUtil.getManyChart(request, rowKeys, columnKeys, data, title1, DomainAxisLabelText1, RangeAxisLabelText1); ModelAndView modelAndView = new ModelAndView(); modelAndView.addObject("chartURL", chartURL); modelAndView.addObject("chartURL1", chartURL1); modelAndView.addObject("chartURL2", chartURL2); modelAndView.addObject("chartURL3", chartURL3); modelAndView.setViewName("/ticket/choose/barChart"); return modelAndView; }
4.jFreeChartUtil
package com.crs.ticket.wanda.utils; import java.awt.Color; import java.awt.Font; import java.awt.Rectangle; import java.io.IOException; import java.text.NumberFormat; import java.util.Iterator; import java.util.List; import java.util.Map; import javax.servlet.http.HttpServletRequest; import org.jfree.chart.ChartColor; import org.jfree.chart.ChartFactory; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.CategoryAxis; import org.jfree.chart.axis.CategoryAxis3D; import org.jfree.chart.axis.DateAxis; import org.jfree.chart.axis.DateTickUnit; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.axis.NumberAxis3D; import org.jfree.chart.labels.ItemLabelAnchor; import org.jfree.chart.labels.ItemLabelPosition; import org.jfree.chart.labels.StandardCategoryItemLabelGenerator; import org.jfree.chart.labels.StandardPieSectionLabelGenerator; import org.jfree.chart.labels.StandardXYItemLabelGenerator; 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.category.LineAndShapeRenderer; import org.jfree.chart.renderer.xy.XYItemRenderer; import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer; import org.jfree.chart.servlet.ServletUtilities; import org.jfree.chart.title.TextTitle; import org.jfree.data.category.CategoryDataset; import org.jfree.data.category.DefaultCategoryDataset; import org.jfree.data.general.DatasetUtilities; import org.jfree.data.general.DefaultPieDataset; import org.jfree.data.time.Month; import org.jfree.data.time.TimeSeries; import org.jfree.data.time.TimeSeriesCollection; import org.jfree.ui.TextAnchor; public class jfreeChartUtil { //解决jfreeChart1.0.13中文乱码问题 public static void configFont(JFreeChart chart) { // 配置字体 Font font = new Font("宋体", Font.BOLD, 20); Font font1 = new Font("宋体", Font.BOLD, 15); chart.getTitle().setFont(font);//大标题 if (chart.getLegend() != null) { chart.getLegend().setItemFont(font); } if (chart.getPlot() instanceof CategoryPlot && ((CategoryPlot) chart.getPlot()).getRenderer() instanceof BarRenderer3D) {//柱状图 // chart.getCategoryPlot().getDomainAxis().setLabelFont(font);//水平底部列表 // chart.getCategoryPlot().getDomainAxis().setTickLabelFont(font);//水平底部标题 // chart.getCategoryPlot().getRangeAxis().setLabelFont(font);//垂直列表 // chart.getCategoryPlot().getRangeAxis().setTickLabelFont(font);//垂直标题 // 处理图形上的乱码 // 处理主标题的乱码 chart.getTitle().setFont(new Font("宋体", Font.BOLD, 18)); // 处理子标题乱码 if(chart.getLegend()!=null){ chart.getLegend().setItemFont(new Font("宋体", Font.BOLD, 15)); } // 获取图表区域对象 CategoryPlot categoryPlot = (CategoryPlot) chart.getPlot(); // 获取X轴的对象 CategoryAxis3D categoryAxis3D = (CategoryAxis3D) categoryPlot.getDomainAxis(); // 获取Y轴的对象 NumberAxis3D numberAxis3D = (NumberAxis3D) categoryPlot.getRangeAxis(); // 处理X轴上的乱码 categoryAxis3D.setTickLabelFont(new Font("宋体", Font.BOLD, 15)); // 处理X轴外的乱码 categoryAxis3D.setLabelFont(new Font("宋体", Font.BOLD, 15)); // 处理Y轴上的乱码 numberAxis3D.setTickLabelFont(new Font("宋体", Font.BOLD, 15)); // 处理Y轴外的乱码 numberAxis3D.setLabelFont(new Font("宋体", Font.BOLD, 15)); // 处理Y轴上显示的刻度，以1作为1格 // numberAxis3D.setAutoTickUnitSelection(false); // NumberTickUnit unit = new NumberTickUnit(1); // numberAxis3D.setTickUnit(unit); // 获取绘图区域对象 BarRenderer3D barRenderer3D = (BarRenderer3D) categoryPlot.getRenderer(); // 设置柱形图的宽度 barRenderer3D.setMaximumBarWidth(0.07); // 在图形上显示数字 BarRenderer3D renderer=new BarRenderer3D(); renderer.setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator()); renderer.setBaseItemLabelsVisible(true); renderer.setBasePositiveItemLabelPosition(new ItemLabelPosition(ItemLabelAnchor.OUTSIDE12, TextAnchor.BASELINE_LEFT)); renderer.setItemLabelAnchorOffset(10D); CategoryPlot plot=chart.getCategoryPlot(); plot.setRenderer(renderer); } else if (chart.getPlot() instanceof XYPlot) {//时序图 //下标小图 chart.getLegend().setItemFont(new java.awt.Font("宋体", Font.BOLD, 15)); //设置时间轴的范围。 XYPlot plot = (XYPlot) chart.getPlot(); DateAxis dateaxis = (DateAxis)plot.getDomainAxis(); dateaxis.setDateFormatOverride(new java.text.SimpleDateFormat("M月")); dateaxis.setTickUnit(new DateTickUnit(DateTickUnit.MONTH,1)); //字体乱码处理 plot.getDomainAxis().setLabelFont(font1);//横轴小标题字体 plot.getDomainAxis().setTickLabelFont(font1);//横轴列表字体 plot.getRangeAxis().setLabelFont(font1);//竖轴小标题字体 plot.getRangeAxis().setTickLabelFont(font1);//竖轴列表字体 //设置曲线是否显示数据点 XYLineAndShapeRenderer xylinerenderer = (XYLineAndShapeRenderer)plot.getRenderer(); xylinerenderer.setBaseShapesVisible(true); //设置曲线显示各数据点的值 XYItemRenderer xyitem = plot.getRenderer(); xyitem.setBaseItemLabelsVisible(true); xyitem.setBasePositiveItemLabelPosition(new ItemLabelPosition(ItemLabelAnchor.OUTSIDE12, TextAnchor.BASELINE_CENTER)); xyitem.setBaseItemLabelGenerator(new StandardXYItemLabelGenerator()); xyitem.setBaseItemLabelFont(new Font("Dialog", 1, 12)); plot.setRenderer(xyitem); } else if (chart.getPlot() instanceof PiePlot) {//饼状图 // chart.getTitle().setFont(new Font("黑体",Font.BOLD,20));//设置饼状标题字体 // chart.get // PiePlot piePlot= (PiePlot) chart.getPlot();//获取图表区域对象 // piePlot.setLabelFont(new Font("黑体",Font.BOLD,15)); // chart.getLegend().setItemFont(new Font("黑体",Font.BOLD,15)); // 处理图形上的乱码 // 处理主标题的乱码 chart.getTitle().setFont(new Font("宋体", Font.BOLD, 18)); // 处理子标题乱码 chart.getLegend().setItemFont(new Font("宋体", Font.BOLD, 15)); // 获取图表区域对象 PiePlot3D categoryPlot = (PiePlot3D) chart.getPlot(); // 处理图像上的乱码 categoryPlot.setLabelFont(new Font("宋体", Font.BOLD, 15)); // 设置图形的生成格式为（上海 2 （10%）） String format = "{0} {1} ({2})"; categoryPlot.setLabelGenerator(new StandardPieSectionLabelGenerator(format)); // 使用ChartFrame对象显示图像 }else{//折线图 // 处理图形上的乱码 // 处理主标题的乱码 chart.getTitle().setFont(new Font("宋体", Font.BOLD, 18)); // 处理子标题乱码 chart.getLegend().setItemFont(new Font("宋体", Font.BOLD, 15)); // 获取图表区域对象 CategoryPlot categoryPlot = (CategoryPlot) chart.getPlot(); // 设置网格竖线颜色 categoryPlot.setDomainGridlinePaint(Color.white); // 设置网格横线颜色 categoryPlot.setRangeGridlinePaint(Color.white); // 获取X轴的对象 CategoryAxis categoryAxis = (CategoryAxis) categoryPlot.getDomainAxis(); // 获取Y轴的对象 NumberAxis numberAxis = (NumberAxis) categoryPlot.getRangeAxis(); // 处理X轴上的乱码 categoryAxis.setTickLabelFont(new Font("宋体", Font.BOLD, 15)); // 处理X轴外的乱码 categoryAxis.setLabelFont(new Font("宋体", Font.BOLD, 15)); // 处理Y轴上的乱码 numberAxis.setTickLabelFont(new Font("宋体", Font.BOLD, 15)); // 处理Y轴外的乱码 numberAxis.setLabelFont(new Font("宋体", Font.BOLD, 15)); // 处理Y轴上显示的刻度，以1作为1格 // numberAxis.setAutoTickUnitSelection(false); // NumberTickUnit unit = new NumberTickUnit(1); // numberAxis.setTickUnit(unit); // 获取绘图区域对象 //是否显示数据点 LineAndShapeRenderer lineAndShapeRenderer = (LineAndShapeRenderer) categoryPlot.getRenderer(); lineAndShapeRenderer.setBaseShapesVisible(true); //设置曲线显示各数据点的值 lineAndShapeRenderer.setBaseItemLabelsVisible(true); lineAndShapeRenderer.setBasePositiveItemLabelPosition(new ItemLabelPosition(ItemLabelAnchor.OUTSIDE12, TextAnchor.BASELINE_CENTER)); lineAndShapeRenderer.setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator()); lineAndShapeRenderer.setBaseItemLabelFont(new Font("Dialog", 1, 12)); categoryPlot.setRenderer(lineAndShapeRenderer); } } /** * 生成单一柱状图 * @param request * @param title 大标题 * @param DomainAxisLabelText 水平下标题 * @param RangeAxisLabelText 垂直标题 * @param jsonArray 数据集 * @return * @throws IOException */ public static String getSigleChart(HttpServletRequest request,String title,String DomainAxisLabelText,String RangeAxisLabelText,Map<String, Integer> map) throws IOException{ //1. 获得数据集合 DefaultCategoryDataset dataset = new DefaultCategoryDataset(); for (Iterator<String> iterator = map.keySet().iterator();iterator.hasNext();) { String key = iterator.next(); dataset.addValue(map.get(key), "",key); } //2. 创建柱状图 JFreeChart chart = ChartFactory.createBarChart3D(title, // 图表标题 DomainAxisLabelText, // 目录轴的显示标签 RangeAxisLabelText, // 数值轴的显示标签 dataset, // 数据集 PlotOrientation.VERTICAL, // 图表方向：垂直 //PlotOrientation.HORIZONTAL //水平 false, // 是否显示图例(对于简单的柱状图必须是false) false, // 是否生成工具 false // 是否生成URL链接 ); //3. 设置整个柱状图的颜色和文字（char对象的设置是针对整个图形的设置） chart.setBackgroundPaint(ChartColor.WHITE); // 设置总的背景颜色 //4. 获得图形对象，并通过此对象对图形的颜色文字进行设置 CategoryPlot p = chart.getCategoryPlot();// 获得图表对象 p.setBackgroundPaint(ChartColor.lightGray);//图形背景颜色 p.setRangeGridlinePaint(ChartColor.WHITE);//图形表格颜色 //5. 设置柱子宽度 BarRenderer renderer = (BarRenderer)p.getRenderer(); renderer.setMaximumBarWidth(0.06); //解决乱码问题 jfreeChartUtil.configFont(chart); //6. 将图形转换为图片，传到前台 String fileName = ServletUtilities.saveChartAsPNG(chart, 700, 400, null, request.getSession()); String chartURL=request.getContextPath() + "/DisplayChart?filename="+fileName; return chartURL; } /** * 生成多维柱状图 * @param request * @param rowKeys 二维行数组 * @param columnKeys 一维行数组 * @param data 数据集合多维数组 * @param title 大标题 * @param DomainAxisLabelText 小横标题 * @param RangeAxisLabelText 小竖标题 * @return * @throws Exception */ public static String getManyChart(HttpServletRequest request,String []rowKeys,String []columnKeys,double[][] data,String title,String DomainAxisLabelText,String RangeAxisLabelText) throws Exception { CategoryDataset dataset=DatasetUtilities.createCategoryDataset(rowKeys,columnKeys ,data); JFreeChart chart=ChartFactory.createBarChart3D(title, DomainAxisLabelText, RangeAxisLabelText, dataset, PlotOrientation.VERTICAL, true, true, true); jfreeChartUtil.configFont(chart); String fileName=ServletUtilities.saveChartAsPNG(chart, 700, 500, null,request.getSession()); String chartURL=request.getContextPath() + "/DisplayChart?filename="+fileName; return chartURL; } /** * 生成饼状图报表 * @param request * @param dataset 数据集 * @param title 大标题 * @param subTitle 小标题 * @return * @throws Exception */ public static String getPieChart(HttpServletRequest request,Map<String, Integer>map,String title,String subTitle) throws Exception { DefaultPieDataset dataset = new DefaultPieDataset(); for(Iterator<String>iterator = map.keySet().iterator();iterator.hasNext();){ String key = iterator.next(); dataset.setValue(key, map.get(key)); } //设置3D属性 JFreeChart chart=ChartFactory.createPieChart3D(title, dataset, true, true, true); // PiePlot3D pieplot3d = (PiePlot3D) chart.getPlot(); // //设置开始角度 // pieplot3d.setStartAngle(120D); // //设置方向为”顺时针方向“ // pieplot3d.setDirection(Rotation.CLOCKWISE); // //设置透明度，0.5F为半透明，1为不透明，0为全透明 // pieplot3d.setForegroundAlpha(0.7F); // 副标题 chart.addSubtitle(new TextTitle(subTitle)); PiePlot pieplot=(PiePlot)chart.getPlot(); pieplot.setLabelFont(new Font("宋体",0,11)); // 设置饼图是圆的（true），还是椭圆的（false）；默认为true pieplot.setCircular(true); // 没有数据的时候显示的内容 pieplot.setNoDataMessage("无数据显示"); StandardPieSectionLabelGenerator standarPieIG = new StandardPieSectionLabelGenerator("{0}:({1}.{2})", NumberFormat.getNumberInstance(), NumberFormat.getPercentInstance()); //突出显示某一块 // pieplot.setLabelGenerator(standarPieIG); // pieplot.setExplodePercent("城管强拆",0.23); // pieplot.setLabelGenerator(standarPieIG); jfreeChartUtil.configFont(chart); String fileName=ServletUtilities.saveChartAsPNG(chart, 700, 500, null, request.getSession()); String chartURL=request.getContextPath() + "/DisplayChart?filename="+fileName; return chartURL; } /** * 单曲线时序图 * @param request * @return * @throws Exception */ public static String genTimeLineChart(HttpServletRequest request)throws Exception{ // 访问量统计 TimeSeries timeSeries=new TimeSeries("某网站访问量统计", Month.class); // 添加数据 timeSeries.add(new Month(1,2013), 100); timeSeries.add(new Month(2,2013), 200); timeSeries.add(new Month(3,2013), 300); timeSeries.add(new Month(4,2013), 400); timeSeries.add(new Month(5,2013), 560); timeSeries.add(new Month(6,2013), 600); timeSeries.add(new Month(7,2013), 750); timeSeries.add(new Month(8,2013), 890); timeSeries.add(new Month(9,2013), 120); timeSeries.add(new Month(10,2013), 400); timeSeries.add(new Month(11,2013), 1200); timeSeries.add(new Month(12,2013), 1600); // 定义时间序列的集合 TimeSeriesCollection lineDataset=new TimeSeriesCollection(); lineDataset.addSeries(timeSeries); JFreeChart chart=ChartFactory.createTimeSeriesChart("访问量统计时间折线图", "月份", "访问量", lineDataset, true, true, true); //设置主标题 chart.setTitle(new TextTitle("某网站访问量统计", new Font("隶书", Font.ITALIC, 15))); //设置子标题 TextTitle subtitle = new TextTitle("2013年度", new Font("黑体", Font.BOLD, 12)); chart.addSubtitle(subtitle); chart.setAntiAlias(true); //设置时间轴的范围。 XYPlot plot = (XYPlot) chart.getPlot(); DateAxis dateaxis = (DateAxis)plot.getDomainAxis(); dateaxis.setDateFormatOverride(new java.text.SimpleDateFormat("M月")); dateaxis.setTickUnit(new DateTickUnit(DateTickUnit.MONTH,1)); //设置曲线是否显示数据点 XYLineAndShapeRenderer xylinerenderer = (XYLineAndShapeRenderer)plot.getRenderer(); xylinerenderer.setBaseShapesVisible(true); //设置曲线显示各数据点的值 XYItemRenderer xyitem = plot.getRenderer(); xyitem.setBaseItemLabelsVisible(true); xyitem.setBasePositiveItemLabelPosition(new ItemLabelPosition(ItemLabelAnchor.OUTSIDE12, TextAnchor.BASELINE_CENTER)); xyitem.setBaseItemLabelGenerator(new StandardXYItemLabelGenerator()); xyitem.setBaseItemLabelFont(new Font("Dialog", 1, 12)); plot.setRenderer(xyitem); jfreeChartUtil.configFont(chart); String fileName=ServletUtilities.saveChartAsPNG(chart, 700, 500, request.getSession()); String chartURL=request.getContextPath() + "/DisplayChart?filename="+fileName; return chartURL; } /** * 多曲线时序图 * @param request * @param listData 数据集 * @param subTitle 曲线小标题 * @param title 大标题 * @param DomainAxisLabelText 横向小标题 * @param RangeAxisLabelText 纵向小标题 * @return * @throws Exception */ public static String genTimeLineChart1(HttpServletRequest request,List<Map<Integer, Integer>> listData,String subTile,String[]subTitles,String title,String DomainAxisLabelText,String RangeAxisLabelText)throws Exception{ // 定义时间序列的集合 TimeSeriesCollection lineDataset=new TimeSeriesCollection(); for(int i=0;i<subTitles.length;i++){ // 访问量统计 TimeSeries timeSeries =new TimeSeries(subTitles[i], Month.class); Map<Integer, Integer> map = listData.get(i); // 添加数据 for(Iterator<Integer> iterator = map.keySet().iterator();iterator.hasNext();){ Integer key = iterator.next(); timeSeries.add(new Month(key,2013), map.get(key)); } lineDataset.addSeries(timeSeries); } JFreeChart chart=ChartFactory.createTimeSeriesChart(title, DomainAxisLabelText, RangeAxisLabelText, lineDataset, true, true, true); //设置子标题 TextTitle subtitle = new TextTitle(subTile, new Font("黑体", Font.BOLD, 12)); chart.addSubtitle(subtitle); chart.setAntiAlias(true); jfreeChartUtil.configFont(chart); String fileName=ServletUtilities.saveChartAsPNG(chart, 700, 500, request.getSession()); String chartURL=request.getContextPath() + "/DisplayChart?filename="+fileName; return chartURL; } /** * 多折线图 * @param request * @return * @throws Exception */ public static String getLineChart(HttpServletRequest request) throws Exception { DefaultCategoryDataset dataset = new DefaultCategoryDataset(); dataset.addValue(13, "A类用户数量", "北京"); dataset.addValue(6, "A类用户数量", "深圳"); dataset.addValue(2, "A类用户数量", "上海"); dataset.addValue(24, "A类用户数量", "广州"); dataset.addValue(15, "A类用户数量", "长春"); dataset.addValue(27, "A类用户数量", "沈阳"); dataset.addValue(20, "B类用户数量", "北京"); dataset.addValue(6, "B类用户数量", "深圳"); dataset.addValue(5, "B类用户数量", "上海"); dataset.addValue(14, "B类用户数量", "广州"); dataset.addValue(15, "B类用户数量", "长春"); dataset.addValue(30, "B类用户数量", "沈阳"); JFreeChart chart = ChartFactory.createLineChart("用户统计报表（所属单位）", // 主标题的名称 "所属单位名称", // X轴的标签 "数量", // Y轴的标签 dataset, // 图标显示的数据集合 PlotOrientation.VERTICAL, // 图像的显示形式（水平或者垂直） true, // 是否显示子标题 true, // 是否生成提示的标签 true); // 是否生成URL链接 jfreeChartUtil.configFont(chart); // 6. 将图形转换为图片，传到前台 String fileName = ServletUtilities.saveChartAsJPEG(chart, 700, 400, null, request.getSession()); String chartURL=request.getContextPath() + "/DisplayChart?filename="+fileName; return chartURL; } }
5.前端显示char.jsp
<%@page import="com.crs.ticket.wanda.utils.jfreeChartUtil"%> <%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <%@ include file="/view/common/resource.jsp" %> <%@ include file="/view/common/tags.jsp" %> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>Insert title here</title> <style type="text/css"> .first{width: 400px; height: 300px; float: left} body{ text-align: center} </style> </head> <body > <div > <img src="${chartURL}" width=580 height=400 border=0 color=gray> <img src="${chartURL1}" width=580 height=400 border=0 color=gray> </div> <div> <img src="${chartURL2}" width=580 height=400 border=0 color=gray> <img src="${chartURL3}" width=580 height=400 border=0 color=gray> </div> </body> </html>
划船不用桨、杨帆不等风、一生全靠浪
