Всякий раз, когда диаграмма OOXML имеет несколько осей, для диаграммы также требуется несколько данных диаграммы в области графика.И все оси должны быть парами.Некоторые оси могут быть невидимыми, но они должны быть там.
В вашем коде используются старые apache poi классы, которые устарели и будут удалены в следующей версии.Вот полный пример использования текущей apache poi версии 4.1.0.
import java.io.FileOutputStream;
import java.io.IOException;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.*;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.ss.util.CellReference;
import org.apache.poi.xddf.usermodel.*;
import org.apache.poi.xddf.usermodel.chart.*;
public class XSSFLineChartTwoCatAxes {
public static void main(String[] args) throws IOException {
try (XSSFWorkbook wb = new XSSFWorkbook()) {
XSSFSheet sheet = wb.createSheet("linechart");
// create data
Row row;
Cell cell;
for (int rowIndex = 0; rowIndex < 4; rowIndex++) {
row = sheet.createRow((short) rowIndex);
if (rowIndex == 0) {
cell = row.createCell(0);
cell.setCellValue("CatA");
for (int colIndex = 1; colIndex < 32; colIndex++) {
cell = row.createCell((short) colIndex);
cell.setCellValue(colIndex + (colIndex-1)*11);
}
} else if (rowIndex == 1) {
cell = row.createCell(0);
cell.setCellValue("ValA");
for (int colIndex = 1; colIndex < 32; colIndex++) {
cell = row.createCell((short) colIndex);
cell.setCellValue(new java.util.Random().nextDouble() * 8 + 1);
}
} else if (rowIndex == 2) {
cell = row.createCell(0);
cell.setCellValue("CatB");
for (int colIndex = 1; colIndex < 14; colIndex++) {
cell = row.createCell((short) colIndex);
cell.setCellValue(colIndex);
}
} else if (rowIndex == 3) {
cell = row.createCell(0);
cell.setCellValue("ValB");
for (int colIndex = 1; colIndex < 14; colIndex++) {
cell = row.createCell((short) colIndex);
cell.setCellValue(new java.util.Random().nextDouble() * 8 + 1);
}
}
}
// creata anchor
XSSFDrawing drawing = sheet.createDrawingPatriarch();
XSSFClientAnchor anchor = drawing.createAnchor(0, 0, 0, 0, 0, 5, 15, 25);
// create chart
XSSFChart chart = drawing.createChart(anchor);
// create data sources
XDDFDataSource<Double> cat1 = XDDFDataSourcesFactory.fromNumericCellRange(sheet, new CellRangeAddress(0, 0, 1, 31));
XDDFNumericalDataSource<Double> val1 = XDDFDataSourcesFactory.fromNumericCellRange(sheet, new CellRangeAddress(1, 1, 1, 31));
XDDFDataSource<Double> cat2 = XDDFDataSourcesFactory.fromNumericCellRange(sheet, new CellRangeAddress(2, 2, 1, 13));
XDDFNumericalDataSource<Double> val2 = XDDFDataSourcesFactory.fromNumericCellRange(sheet, new CellRangeAddress(3, 3, 1, 13));
// first line chart
// create axis
XDDFCategoryAxis bottomAxis = chart.createCategoryAxis(AxisPosition.BOTTOM);
XDDFValueAxis rightAxis = chart.createValueAxis(AxisPosition.RIGHT);
rightAxis.setCrosses(AxisCrosses.MAX);
// create data and series
XDDFLineChartData data = (XDDFLineChartData) chart.createData(ChartTypes.LINE, bottomAxis, rightAxis);
XDDFLineChartData.Series series = (XDDFLineChartData.Series) data.addSeries(cat1, val1);
series.setTitle("CatA", new CellReference(sheet.getSheetName(), 0, 0, true, true));
series.setSmooth(false);
series.setMarkerStyle(MarkerStyle.NONE);
chart.plot(data);
solidLineSeries(data, 0, PresetColor.BLUE);
// second line chart
// create axis
XDDFCategoryAxis topAxis = chart.createCategoryAxis(AxisPosition.TOP);
topAxis.setCrosses(AxisCrosses.MAX);
rightAxis = chart.createValueAxis(AxisPosition.RIGHT);
rightAxis.setVisible(false); // right axis must be there but can be invisible
rightAxis.setCrosses(AxisCrosses.MAX);
// set correct cross axis
topAxis.crossAxis(rightAxis);
rightAxis.crossAxis(topAxis);
// create data and series
data = (XDDFLineChartData) chart.createData(ChartTypes.LINE, topAxis, rightAxis);
series = (XDDFLineChartData.Series) data.addSeries(cat2, val2);
series.setTitle("CatB", new CellReference(sheet.getSheetName(), 2, 0, true, true));
series.setSmooth(false);
series.setMarkerStyle(MarkerStyle.NONE);
chart.plot(data);
// correct the id and order, must not be 0 again because there is a series already in the other chart
chart.getCTChart().getPlotArea().getLineChartArray(1).getSerArray(0).getIdx().setVal(1);
chart.getCTChart().getPlotArea().getLineChartArray(1).getSerArray(0).getOrder().setVal(1);
solidLineSeries(data, 0, PresetColor.GREEN);
// create legend
XDDFChartLegend legend = chart.getOrAddLegend();
legend.setPosition(LegendPosition.BOTTOM);
legend.setOverlay(false);
// Write the output to a file
try (FileOutputStream fileOut = new FileOutputStream("ooxml-line-chart.xlsx")) {
wb.write(fileOut);
}
}
}
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);
}
}