GitHub：https://github.com/YanKuan-IT/JFreeChartLine.git
1.以月为单位的折线图
@WebServlet("/LineChart") public class LineChart extends HttpServlet { protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // 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); FileOutputStream fos_jpg = null; long currentTimeMillis = system.currentTimeMillis(); try { //将图片保存至本地f盘 // fos_jpg = new FileOutputStream("f:\\"+System.currentTimeMillis()+".jpg"); //将图片保存至Tomcat服务器WebRoot下的img目录中 fos_jpg = new FileOutputStream(request.getSession().getServletContext().getRealPath("/")+currentTimeMillis+".jpeg"); ChartUtilities.writeChartAsJPEG(fos_jpg,1,chart,400,300,null); } catch (Exception e) { System.out.println("error"); } finally { try { fos_jpg.close(); } catch (Exception e) { System.out.println("error"); } } String filename = currentTimeMillis+".jpeg"; request.setAttribute("filename", filename); request.getRequestDispatcher("/index.jsp").forward(request, response); } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet(request, response); } }<img alt="" src="https://my.oschina.net/u/3285916/blog/${pageContext.request.contextPath }/${filename }">
2.以月为单位的对比折线图
@WebServlet("/LineChart2") public class LineChart2 extends HttpServlet { protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // 访问量统计 TimeSeries timeSeries=new TimeSeries("A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); // 访问量统计 TimeSeries timeSeries2=new TimeSeries("B网站访问量统计", Month.class); // 添加数据 timeSeries2.add(new Month(1,2013), 50); timeSeries2.add(new Month(2,2013), 100); timeSeries2.add(new Month(3,2013), 150); timeSeries2.add(new Month(4,2013), 200); timeSeries2.add(new Month(5,2013), 220); timeSeries2.add(new Month(6,2013), 300); timeSeries2.add(new Month(7,2013), 340); timeSeries2.add(new Month(8,2013), 400); timeSeries2.add(new Month(9,2013), 450); timeSeries2.add(new Month(10,2013), 500); timeSeries2.add(new Month(11,2013), 70); timeSeries2.add(new Month(12,2013), 800); // 定义时间序列的集合 TimeSeriesCollection lineDataset=new TimeSeriesCollection(); lineDataset.addSeries(timeSeries); lineDataset.addSeries(timeSeries2); 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("A,B网站访问量统计对比图", 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); FileOutputStream fos_jpg = null; long currentTimeMillis = System.currentTimeMillis(); try { //将图片保存至本地f盘 // fos_jpg = new FileOutputStream("f:\\"+System.currentTimeMillis()+".jpg"); //将图片保存至Tomcat服务器WebRoot下的img目录中 fos_jpg = new FileOutputStream(request.getSession().getServletContext().getRealPath("/")+currentTimeMillis+".jpeg"); ChartUtilities.writeChartAsJPEG(fos_jpg,1,chart,400,300,null); } catch (Exception e) { System.out.println("error"); } finally { try { fos_jpg.close(); } catch (Exception e) { System.out.println("error"); } } String filename = currentTimeMillis+".jpeg"; request.setAttribute("filename", filename); request.getRequestDispatcher("/index2.jsp").forward(request, response); } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet(request, response); } }<img alt="" src="https://my.oschina.net/u/3285916/blog/${pageContext.request.contextPath }/${filename }">
3.以小时为单位的对比折线图
@WebServlet("/LineChart3") public class LineChart3 extends HttpServlet { protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // 访问量统计 TimeSeries timeSeries=new TimeSeries("A网站访问量统计", org.jfree.data.time.Hour.class); // 添加数据 timeSeries.add(new Hour(1,new Day()), 100); timeSeries.add(new Hour(2,new Day()), 90); timeSeries.add(new Hour(3,new Day()), 85); timeSeries.add(new Hour(4,new Day()), 60); timeSeries.add(new Hour(5,new Day()), 30); timeSeries.add(new Hour(6,new Day()), 29); timeSeries.add(new Hour(7,new Day()), 45); timeSeries.add(new Hour(8,new Day()), 140); timeSeries.add(new Hour(9,new Day()), 280); timeSeries.add(new Hour(10,new Day()), 500); timeSeries.add(new Hour(11,new Day()), 430); timeSeries.add(new Hour(12,new Day()), 370); timeSeries.add(new Hour(13,new Day()), 350); timeSeries.add(new Hour(14,new Day()), 360); timeSeries.add(new Hour(15,new Day()), 410); timeSeries.add(new Hour(16,new Day()), 330); timeSeries.add(new Hour(17,new Day()), 410); timeSeries.add(new Hour(18,new Day()), 490); timeSeries.add(new Hour(19,new Day()), 570); timeSeries.add(new Hour(20,new Day()), 660); timeSeries.add(new Hour(21,new Day()), 720); timeSeries.add(new Hour(22,new Day()), 410); timeSeries.add(new Hour(23,new Day()), 300); timeSeries.add(new Hour(24,new Day()), 180); TimeSeries timeSeries2=new TimeSeries("B网站访问量统计", org.jfree.data.time.Hour.class); // 添加数据 timeSeries2.add(new Hour(1,new Day()), 320); timeSeries2.add(new Hour(2,new Day()), 180); timeSeries2.add(new Hour(3,new Day()), 95); timeSeries2.add(new Hour(4,new Day()), 30); timeSeries2.add(new Hour(5,new Day()), 21); timeSeries2.add(new Hour(6,new Day()), 100); timeSeries2.add(new Hour(7,new Day()), 130); timeSeries2.add(new Hour(8,new Day()), 190); timeSeries2.add(new Hour(9,new Day()), 350); timeSeries2.add(new Hour(10,new Day()), 480); timeSeries2.add(new Hour(11,new Day()), 560); timeSeries2.add(new Hour(12,new Day()), 450); timeSeries2.add(new Hour(13,new Day()), 430); timeSeries2.add(new Hour(14,new Day()), 300); timeSeries2.add(new Hour(15,new Day()), 200); timeSeries2.add(new Hour(16,new Day()), 340); timeSeries2.add(new Hour(17,new Day()), 400); timeSeries2.add(new Hour(18,new Day()), 460); timeSeries2.add(new Hour(19,new Day()), 510); timeSeries2.add(new Hour(20,new Day()), 600); timeSeries2.add(new Hour(21,new Day()), 650); timeSeries2.add(new Hour(22,new Day()), 690); timeSeries2.add(new Hour(23,new Day()), 590); timeSeries2.add(new Hour(24,new Day()), 410); // 定义时间序列的集合 TimeSeriesCollection lineDayset=new TimeSeriesCollection(); lineDayset.addSeries(timeSeries); lineDayset.addSeries(timeSeries2); JFreeChart chart = ChartFactory.createTimeSeriesChart("访问量统计时间折线图", "时", "访问量", lineDayset, true, true, true); //设置主标题 chart.setTitle(new TextTitle("A、B网站的访问量对比统计图", new Font("隶书", Font.ITALIC, 15))); //设置子标题 TextTitle subtitle = new TextTitle("2017年6月1日", 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("hh")); dateaxis.setTickUnit(new DateTickUnit(DateTickUnit.HOUR,1)); //设置时间间隔为1小时 //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); FileOutputStream fos_jpg = null; long currentTimeMillis = System.currentTimeMillis(); try { //将图片保存至本地f盘 // fos_jpg = new FileOutputStream("f:\\"+System.currentTimeMillis()+".jpg"); //将图片保存至Tomcat服务器WebRoot下的img目录中 fos_jpg = new FileOutputStream(request.getSession().getServletContext().getRealPath("/")+currentTimeMillis+".jpeg"); ChartUtilities.writeChartAsJPEG(fos_jpg,1,chart,700,600,null); } catch (Exception e) { System.out.println("error"); } finally { try { fos_jpg.close(); } catch (Exception e) { System.out.println("error"); } } String filename = currentTimeMillis+".jpeg"; request.setAttribute("filename", filename); request.getRequestDispatcher("/index3.jsp").forward(request, response); } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet(request, response); } }<img alt="" src="https://my.oschina.net/u/3285916/blog/${pageContext.request.contextPath }/${filename }">
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