jfreechart 折线图 (提供源码，项目可运行)

package com.mouse.chart; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartUtilities; import org.jfree.chart.title.TextTitle; import org.jfree.data.category.DefaultCategoryDataset; import org.jfree.data.time.TimeSeries; import org.jfree.data.time.Month; import org.jfree.data.time.TimeSeriesCollection; import org.jfree.data.xy.XYSeries; import org.jfree.data.xy.XYSeriesCollection; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.renderer.category.LineAndShapeRenderer; import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer; import java.awt.Color; import java.awt.Font; import java.io.File; import java.io.IOException; import org.jfree.chart.renderer.xy.XYItemRenderer; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.axis.ValueAxis; import org.jfree.chart.labels.*; import org.jfree.ui.*; public class MyChart { private JFreeChart chart; public JFreeChart getXYSChart() { XYSeries xyseries = new XYSeries("2006"); // 先产生XYSeries 对象 xyseries.add(1D, 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("2007"); xyseries1.add(1D, 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("2008"); 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); chart = ChartFactory .createXYLineChart("XY序列报表", "x轴", "y轴", xyseriescollection, PlotOrientation.VERTICAL, true, true, false); chart.setTextAntiAlias(false); chart.setBackgroundPaint(Color.WHITE); // 设置图标题的字体重新设置title Font font = new Font("隶书", Font.BOLD, 25); TextTitle title = new TextTitle("XY序列报表"); title.setFont(font); chart.setTitle(title); // 设置面板字体 Font labelFont = new Font("SansSerif", Font.TRUETYPE_FONT, 12); chart.setBackgroundPaint(Color.WHITE); XYPlot categoryplot = (XYPlot) chart.getPlot(); // x轴 分类轴网格是否可见 categoryplot.setDomainGridlinesVisible(true); // y轴 数据轴网格是否可见 categoryplot.setRangeGridlinesVisible(true); categoryplot.setRangeGridlinePaint(Color.WHITE);// 虚线色彩 categoryplot.setDomainGridlinePaint(Color.WHITE);// 虚线色彩 categoryplot.setBackgroundPaint(Color.lightGray); // 设置轴和面板之间的距离 categoryplot.setAxisOffset(new RectangleInsets(5D, 5D, 5D, 5D)); ValueAxis domainAxis = categoryplot.getDomainAxis(); domainAxis.setLabelFont(labelFont);// 轴标题 domainAxis.setTickLabelFont(labelFont);// 轴数值 domainAxis.setLowerMargin(0.0); // 设置距离图片右端距离 domainAxis.setUpperMargin(0.0); NumberAxis numberaxis = (NumberAxis) categoryplot.getRangeAxis(); numberaxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits()); numberaxis.setAutoRangeIncludesZero(true); // 获得renderer 注意这里是下嗍造型到lineandshaperenderer！！ XYLineAndShapeRenderer xylineandshaperenderer = (XYLineAndShapeRenderer) categoryplot .getRenderer(); xylineandshaperenderer.setBaseShapesVisible(true); // series 点（即数据点）可见 xylineandshaperenderer.setBaseLinesVisible(true); // series // 点（即数据点）间有连线可见 return chart; } public JFreeChart getLineChart() { DefaultCategoryDataset lineDataset = new DefaultCategoryDataset(); // 各曲线名称 String series1 = "冰箱"; String series2 = "彩电"; String series3 = "洗衣机"; String series4 = "123"; String series5 = "456"; // 横轴名称(列名称) String type1 = "1月"; String type2 = "2月"; String type3 = "3月"; lineDataset.addValue(1.0, series2, type1); lineDataset.addValue(7.9, series2, type2); lineDataset.addValue(6.9, series2, type3); lineDataset.addValue(3.0, series4, type1); lineDataset.addValue(6.9, series4, type2); lineDataset.addValue(7.9, series4, type3); lineDataset.addValue(3.0, series5, type1); lineDataset.addValue(3.9, series5, type2); lineDataset.addValue(2.9, series5, type3); lineDataset.addValue(4.2, series1, type1); lineDataset.addValue(3.9, series1, type3); lineDataset.addValue(2.0, series3, type1); lineDataset.addValue(9.2, series3, type2); lineDataset.addValue(8.9, series3, type3); chart = ChartFactory.createLineChart("一季度销售曲线", // 折线图名称 "时间", // 横坐标名称 "销售额(百万)", // 纵坐标名称 lineDataset, // 数据 PlotOrientation.VERTICAL, // 水平显示图像 true, // include legend true, // tooltips false // urls ); chart.setTextAntiAlias(false);// 设置字体圆润 // chart.setBackgroundPaint(Color.WHITE); //设置图片背景 CategoryPlot plot = chart.getCategoryPlot(); plot.setRangeGridlinesVisible(true); // 是否显示格子线 plot.setDomainGridlinesVisible(true);// plot.setBackgroundAlpha(0.3f); // 设置背景透明度 NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis(); rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits()); rangeAxis.setAutoRangeIncludesZero(true); rangeAxis.setUpperMargin(0.20); rangeAxis.setLabelAngle(Math.PI / 2.0); // 设置曲线显示各数据点的值 LineAndShapeRenderer renderer = (LineAndShapeRenderer) plot .getRenderer(); // renderer.setShapesVisible(true); renderer.setBaseShapesVisible(true); renderer.setDrawOutlines(true); renderer.setUseFillPaint(true); // renderer.setFillPaint(); renderer.setBaseFillPaint(java.awt.Color.white); renderer .setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator()); renderer.setBaseItemLabelsVisible(true); return chart; } public JFreeChart getTSChart() { //访问量统计时间线 TimeSeries timeSeries2006 = new TimeSeries("2006年度", Month.class); TimeSeries timeSeries2007 = new TimeSeries("2007年度", Month.class); //时间曲线数据集合 TimeSeriesCollection lineDataset = new TimeSeriesCollection(); //构造数据集合 timeSeries2006.add(new Month(1, 2007), 7200); timeSeries2006.add(new Month(2, 2007), 7000); timeSeries2006.add(new Month(3, 2007), 4200); timeSeries2006.add(new Month(4, 2007), 8200); timeSeries2006.add(new Month(5, 2007), 7300); timeSeries2006.add(new Month(6, 2007), 8200); timeSeries2006.add(new Month(7, 2007), 9200); timeSeries2006.add(new Month(8, 2007), 7300); timeSeries2006.add(new Month(9, 2007), 9400); timeSeries2006.add(new Month(10, 2007), 7500); timeSeries2006.add(new Month(11, 2007), 6600); timeSeries2006.add(new Month(12, 2007), 3500); timeSeries2007.add(new Month(1, 2007), 10200); timeSeries2007.add(new Month(2, 2007), 9000); timeSeries2007.add(new Month(3, 2007), 6200); timeSeries2007.add(new Month(4, 2007), 8200); timeSeries2007.add(new Month(5, 2007), 8200); timeSeries2007.add(new Month(6, 2007), 11200); timeSeries2007.add(new Month(7, 2007), 13200); timeSeries2007.add(new Month(8, 2007), 8300); timeSeries2007.add(new Month(9, 2007), 10400); timeSeries2007.add(new Month(10, 2007), 12500); timeSeries2007.add(new Month(11, 2007), 10600); timeSeries2007.add(new Month(12, 2007), 10500); lineDataset.addSeries(timeSeries2006); lineDataset.addSeries(timeSerie