JFreeChart应用实例-折线图

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package Line;    import java.awt.Color;  import java.awt.Font;  import org.jfree.chart.ChartFactory;  import org.jfree.chart.ChartFrame;  import org.jfree.chart.JFreeChart;  import org.jfree.chart.StandardChartTheme;  import org.jfree.chart.plot.CategoryPlot;  import org.jfree.chart.plot.PlotOrientation;  import org.jfree.data.category.CategoryDataset;  import org.jfree.data.category.DefaultCategoryDataset;    public class Line {      public static void main(String[] args) {          StandardChartTheme mChartTheme = new StandardChartTheme("CN");          mChartTheme.setLargeFont(new Font("黑体", Font.BOLD, 20));          mChartTheme.setExtraLargeFont(new Font("宋体", Font.PLAIN, 15));          mChartTheme.setRegularFont(new Font("宋体", Font.PLAIN, 15));          ChartFactory.setChartTheme(mChartTheme);                  CategoryDataset mDataset = GetDataset();          JFreeChart mChart = ChartFactory.createLineChart(                  "折线图",                  "年份",                  "数量",                  mDataset,                  PlotOrientation.VERTICAL,                  true,                   true,                   false);                    CategoryPlot mPlot = (CategoryPlot)mChart.getPlot();          mPlot.setBackgroundPaint(Color.LIGHT_GRAY);          mPlot.setRangeGridlinePaint(Color.BLUE);//背景底部横虚线          mPlot.setOutlinePaint(Color.RED);//边界线                    ChartFrame mChartFrame = new ChartFrame("折线图", mChart);          mChartFrame.pack();          mChartFrame.setVisible(true);        }      public static CategoryDataset GetDataset()      {          DefaultCategoryDataset mDataset = new DefaultCategoryDataset();          mDataset.addValue(1, "First", "2013");          mDataset.addValue(3, "First", "2014");          mDataset.addValue(2, "First", "2015");          mDataset.addValue(6, "First", "2016");          mDataset.addValue(5, "First", "2017");          mDataset.addValue(12, "First", "2018");          mDataset.addValue(14, "Second", "2013");          mDataset.addValue(13, "Second", "2014");          mDataset.addValue(12, "Second", "2015");          mDataset.addValue(9, "Second", "2016");          mDataset.addValue(5, "Second", "2017");          mDataset.addValue(7, "Second", "2018");          return mDataset;      }      }

第二种方式：

package Line;    import java.awt.Font;    import org.jfree.chart.ChartFactory;  import org.jfree.chart.ChartFrame;  import org.jfree.chart.JFreeChart;  import org.jfree.chart.StandardChartTheme;  import org.jfree.chart.plot.PlotOrientation;  import org.jfree.data.xy.XYSeries;  import org.jfree.data.xy.XYSeriesCollection;    public class XYLine {      public static void main(String[] args) {          StandardChartTheme mChartTheme = new StandardChartTheme("CN");          mChartTheme.setLargeFont(new Font("黑体", Font.BOLD, 20));          mChartTheme.setExtraLargeFont(new Font("宋体", Font.PLAIN, 15));          mChartTheme.setRegularFont(new Font("宋体", Font.PLAIN, 15));          ChartFactory.setChartTheme(mChartTheme);                  XYSeriesCollection mCollection = GetCollection();          JFreeChart mChart = ChartFactory.createXYLineChart(                  "折线图",                  "X",                  "Y",                                  mCollection,                  PlotOrientation.VERTICAL,                  true,                   true,                   false);          ChartFrame mChartFrame = new ChartFrame("折线图", mChart);          mChartFrame.pack();          mChartFrame.setVisible(true);        }         public static XYSeriesCollection GetCollection()      {          XYSeriesCollection mCollection = new XYSeriesCollection();          XYSeries mSeriesFirst = new XYSeries("First");          mSeriesFirst.add(1.0D, 1.0D);          mSeriesFirst.add(2D, 4D);          mSeriesFirst.add(3D, 3D);          mSeriesFirst.add(4D, 5D);          mSeriesFirst.add(5D, 5D);          mSeriesFirst.add(6D, 7D);          mSeriesFirst.add(7D, 7D);          mSeriesFirst.add(8D, 8D);          XYSeries mSeriesSecond = new XYSeries("Second");          mSeriesSecond.add(1.0D, 5D);          mSeriesSecond.add(2D, 7D);          mSeriesSecond.add(3D, 6D);          mSeriesSecond.add(4D, 8D);          mSeriesSecond.add(5D, 4D);          mSeriesSecond.add(6D, 4D);          mSeriesSecond.add(7D, 2D);          mSeriesSecond.add(8D, 1.0D);          mCollection.addSeries(mSeriesFirst);          mCollection.addSeries(mSeriesSecond);          return mCollection;      }    }

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