源自https://svn.apache.org/repos/asf/poi/trunk/src/examples/src/org/apache/poi/xssf/usermodel/examples/中的条形图和折线图示例，我们也可以得到此处要求的组合图表。但到目前为止，并非所有请求都只能使用高级XDDF课程。一些修正是必要的，我们需要使用底层的低级ooxml-schemas-1.4bean。所以ooxml-schemas-1.4.jar需要在类路径中。
在以下代码中，对官方示例进行了以下更改：
leftAxis.setCrossBetween(AxisCrossBetween.BETWEEN);已设置。因此类别轴与笔画之间的值轴相交，而不是笔画的中点。否则，对于第一个和最后一个类别，条形仅可见一半宽。
chart.getCTChart().getPlotArea().getBarChartArray(0).addNewOverlap().setVal((byte)100);设置 100% 的重叠。否则，单个系列的酒吧并没有真正堆叠，而是并排保持。
只能使用底层的低级ooxml-schemas-1.4bean 添加数据标签。
附加折线图必须有自己的轴，这些轴正确地相互交叉。但是那些轴必须是不可见的。
因为在添加到图表时，折线图并不知道已经存在的条形图，它的IDs 再次以 0 开头。但这对于组合图表是错误的。所以我们需要更正id和order。它不能再次以 0 开头，因为已经有三个条形系列。
以下代码需要StackedBarAndLineChart.xlsx在 range 的第一张表中提供问题中提供的数据A1:E11。
代码：
import java.io.*;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.*;
import org.apache.poi.ss.util.*;
import org.apache.poi.xddf.usermodel.*;
import org.apache.poi.xddf.usermodel.chart.*;
public class StackedBarAndLineChart {
public static void main(String[] args) throws IOException {
try (FileInputStream in = new FileInputStream("StackedBarAndLineChart.xlsx");
XSSFWorkbook wb = (XSSFWorkbook)WorkbookFactory.create(in)) {
XSSFSheet sheet = wb.getSheetAt(0);
// determine the type of the category axis from it's first category value (value in A2 in this case)
XDDFDataSource date = null;
CellType type = CellType.ERROR;
Row row = sheet.getRow(1);
if (row != null) {
Cell cell = row.getCell(0);
if (cell != null) {
type = cell.getCellType();
if (type == CellType.STRING) {
date = XDDFDataSourcesFactory.fromStringCellRange(sheet, new CellRangeAddress(1, 10, 0, 0));
} else if (type == CellType.NUMERIC) {
date = XDDFDataSourcesFactory.fromNumericCellRange(sheet, new CellRangeAddress(1, 10, 0, 0));
} else if (type == CellType.FORMULA) {
type = cell.getCachedFormulaResultType();
if (type == CellType.STRING) {
date = XDDFDataSourcesFactory.fromStringCellRange(sheet, new CellRangeAddress(1, 10, 0, 0));
} else if (type == CellType.NUMERIC) {
date = XDDFDataSourcesFactory.fromNumericCellRange(sheet, new CellRangeAddress(1, 10, 0, 0));
}
}
}
}
if (date != null) { // if no type of category axis found, don't create a chart at all
XDDFNumericalDataSource<Double> high = XDDFDataSourcesFactory.fromNumericCellRange(sheet, new CellRangeAddress(1, 10, 2, 2));
XDDFNumericalDataSource<Double> medium = XDDFDataSourcesFactory.fromNumericCellRange(sheet, new CellRangeAddress(1, 10, 3, 3));
XDDFNumericalDataSource<Double> low = XDDFDataSourcesFactory.fromNumericCellRange(sheet, new CellRangeAddress(1, 10, 4, 4));
XDDFNumericalDataSource<Double> category = XDDFDataSourcesFactory.fromNumericCellRange(sheet, new CellRangeAddress(1, 10, 1, 1));
XSSFDrawing drawing = sheet.createDrawingPatriarch();
XSSFClientAnchor anchor = drawing.createAnchor(0, 0, 0, 0, 6, 0, 16, 20);
XSSFChart chart = drawing.createChart(anchor);
XDDFChartLegend legend = chart.getOrAddLegend();
legend.setPosition(LegendPosition.RIGHT);
// bar chart
XDDFCategoryAxis bottomAxis = chart.createCategoryAxis(AxisPosition.BOTTOM);
XDDFValueAxis leftAxis = chart.createValueAxis(AxisPosition.LEFT);
leftAxis.setTitle("Number of defects");
leftAxis.setCrosses(AxisCrosses.AUTO_ZERO);
// category axis crosses the value axis between the strokes and not midpoint the strokes
leftAxis.setCrossBetween(AxisCrossBetween.BETWEEN);
XDDFChartData data = chart.createData(ChartTypes.BAR, bottomAxis, leftAxis);
XDDFChartData.Series series1 = data.addSeries(date, high);
series1.setTitle("high", new CellReference(sheet.getSheetName(), 0, 2, true, true));
XDDFChartData.Series series2 = data.addSeries(date, medium);
series2.setTitle("medium", new CellReference(sheet.getSheetName(), 0, 3, true, true));
XDDFChartData.Series series3 = data.addSeries(date, low);
series3.setTitle("low", new CellReference(sheet.getSheetName(), 0, 4, true, true));
chart.plot(data);
XDDFBarChartData bar = (XDDFBarChartData) data;
bar.setBarDirection(BarDirection.COL);
// looking for "Stacked Bar Chart"? uncomment the following line
bar.setBarGrouping(BarGrouping.STACKED);
// correcting the overlap so bars really are stacked and not side by side
chart.getCTChart().getPlotArea().getBarChartArray(0).addNewOverlap().setVal((byte)100);
solidFillSeries(data, 0, PresetColor.CORNFLOWER_BLUE);
solidFillSeries(data, 1, PresetColor.LIGHT_SALMON);
solidFillSeries(data, 2, PresetColor.LIGHT_GRAY);
// add data labels
for (int s = 0 ; s < 3; s++) {
chart.getCTChart().getPlotArea().getBarChartArray(0).getSerArray(s).addNewDLbls();
chart.getCTChart().getPlotArea().getBarChartArray(0).getSerArray(s).getDLbls()
.addNewDLblPos().setVal(org.openxmlformats.schemas.drawingml.x2006.chart.STDLblPos.CTR);
chart.getCTChart().getPlotArea().getBarChartArray(0).getSerArray(s).getDLbls().addNewShowVal().setVal(true);
chart.getCTChart().getPlotArea().getBarChartArray(0).getSerArray(s).getDLbls().addNewShowLegendKey().setVal(false);
chart.getCTChart().getPlotArea().getBarChartArray(0).getSerArray(s).getDLbls().addNewShowCatName().setVal(false);
chart.getCTChart().getPlotArea().getBarChartArray(0).getSerArray(s).getDLbls().addNewShowSerName().setVal(false);
}
// line chart
// axis must be there but must not be visible
bottomAxis = chart.createCategoryAxis(AxisPosition.BOTTOM);
bottomAxis.setVisible(false);
leftAxis = chart.createValueAxis(AxisPosition.LEFT);
leftAxis.setVisible(false);
// set correct cross axis
bottomAxis.crossAxis(leftAxis);
leftAxis.crossAxis(bottomAxis);
data = chart.createData(ChartTypes.LINE, bottomAxis, leftAxis);
XDDFLineChartData.Series series4 = (XDDFLineChartData.Series)data.addSeries(date, category);
series4.setTitle("total", null);
series4.setSmooth(false);
series4.setMarkerStyle(MarkerStyle.STAR);
chart.plot(data);
// correct the id and order, must not start 0 again because there are three bar series already
chart.getCTChart().getPlotArea().getLineChartArray(0).getSerArray(0).getIdx().setVal(3);
chart.getCTChart().getPlotArea().getLineChartArray(0).getSerArray(0).getOrder().setVal(3);
solidLineSeries(data, 0, PresetColor.YELLOW);
// add data labels
chart.getCTChart().getPlotArea().getLineChartArray(0).getSerArray(0).addNewDLbls();
chart.getCTChart().getPlotArea().getLineChartArray(0).getSerArray(0).getDLbls()
.addNewSpPr().addNewSolidFill().addNewSrgbClr().setVal(new byte[]{(byte)255,(byte)255,0});
chart.getCTChart().getPlotArea().getLineChartArray(0).getSerArray(0).getDLbls()
.addNewDLblPos().setVal(org.openxmlformats.schemas.drawingml.x2006.chart.STDLblPos.CTR);
chart.getCTChart().getPlotArea().getLineChartArray(0).getSerArray(0).getDLbls().addNewShowVal().setVal(true);
chart.getCTChart().getPlotArea().getLineChartArray(0).getSerArray(0).getDLbls().addNewShowLegendKey().setVal(false);
chart.getCTChart().getPlotArea().getLineChartArray(0).getSerArray(0).getDLbls().addNewShowCatName().setVal(false);
chart.getCTChart().getPlotArea().getLineChartArray(0).getSerArray(0).getDLbls().addNewShowSerName().setVal(false);
}
// Write the output to a file
try (FileOutputStream fileOut = new FileOutputStream("StackedBarAndLineChartResult.xlsx")) {
wb.write(fileOut);
}
}
}
private static void solidFillSeries(XDDFChartData data, int index, PresetColor color) {
XDDFSolidFillProperties fill = new XDDFSolidFillProperties(XDDFColor.from(color));
XDDFChartData.Series series = data.getSeries().get(index);
XDDFShapeProperties properties = series.getShapeProperties();
if (properties == null) {
properties = new XDDFShapeProperties();
}
properties.setFillProperties(fill);
series.setShapeProperties(properties);
}
private static void solidLineSeries(XDDFChartData data, int index, PresetColor color) {
XDDFSolidFillProperties fill = new XDDFSolidFillProperties(XDDFColor.from(color));
XDDFLineProperties line = new XDDFLineProperties();
line.setFillProperties(fill);
XDDFChartData.Series series = data.getSeries().get(index);
XDDFShapeProperties properties = series.getShapeProperties();
if (properties == null) {
properties = new XDDFShapeProperties();
}
properties.setLineProperties(line);
series.setShapeProperties(properties);
}
}
结果：
编辑 2019-03-01：
我已经稍微改进了我的代码。它现在根据其第一个类别值（在本例中为 A2 中的值）确定类别轴的类型。对于数据标签，明确设置了位置，并且明确设置了只显示值而不显示图例键、类别名称或系列名称。
