详解如何在Java中创建Excel迷你图

Workbook wb = new Workbook();
 IWorksheet sheet = wb.getActiveSheet();
 // 定义数据
 Object[][] data = new Object[][]
 {
   {1, -3, 2},
   {4, -6, 5},
   {7, -9, 8},
   {10, 12, -11}
 };
 sheet.getRange("A1:C4").setValue(data);
 // 添加迷你图
 sheet.getRange("D1:D4").getSparklineGroups().add(SparkType.Line, "A1:C4");
 sheet.getRange("E1:E4").getSparklineGroups().add(SparkType.Column, "A1:C4");
 sheet.getRange("F1:F4").getSparklineGroups().add(SparkType.ColumnStacked100, "A1:C4");
 wb.save("output/sparkline.xlsx");

// 创建workbook，并获取当前sheet
 Workbook wb = new Workbook();
 IWorksheet sheet = wb.getActiveSheet();
 // 定义数据区域
 Object[][] data = new Object[][]
 {
   { 1, 2, 3 },
   { 4, 5, 6 },
   { 7, 8, 9 },
   { 10, 11, 12 }
 };
 sheet.getRange("A1:C4").setValue(data);
 sheet.getRange("D1:D4").getSparklineGroups().add(SparkType.Line, "A1:C4");
 sheet.getRange("F1:H4").setValue(data);
 // 添加一组新的迷你图
 sheet.getRange("J1:J4").getSparklineGroups().add(SparkType.Column, "F1:H4");
 // 基于区域"J2"的迷你图设置，创建一个新的组合
 sheet.getRange("A1:J4").getSparklineGroups().group(sheet.getRange("J2"));
 wb.save("output/sparkline.xlsx");

// 创建workbook，并获取当前sheet
 Workbook wb = new Workbook();
 IWorksheet sheet = wb.getActiveSheet();
 // 定义数据区域
 Object[][] data = new Object[][]
 {
   { 1, 2, 3 },
   { 4, 5, 6 },
   { 7, 8, 9 },
   { 10, 11, 12 }
 };
 sheet.getRange("A1:C4").setValue(data);
 // 添加迷你图
 sheet.getRange("D1:D4").getSparklineGroups().add(SparkType.Line, "A1:C4");
 // 定义日期数据
 Object[] date_data = new Object[]
 {
   new GregorianCalendar(2011, 11, 16),
   new GregorianCalendar(2011, 11, 17),
   new GregorianCalendar(2011, 11, 18)
 };
 sheet.getRange("A7:C7").setValue(date_data);
 // 修改迷你图的配置
 ISparklineGroup sparklinegroup = sheet.getRange("D1").getSparklineGroups().get(0);
 sparklinegroup.setLineWeight(2.5);
 sparklinegroup.getPoints().getMarkers().getColor().setColor(Color.GetRed());
 sparklinegroup.getPoints().getMarkers().setVisible(true);
 sparklinegroup.getSeriesColor().setColor(Color.GetPurple());
 wb.save("output/sparkline.xlsx");