更改由apache poi生成的excel表单的图表形状

我有一个Java文件生成一个Excel表单，其中包含大量的数据。 为了更好的用户体验，我们决定从数据中简单地生成折线图。

生成图表并不困难，但要把它做成我们需要的确切形状是一个问题。 目前，图表边框如下所示：

正如你所看到的，边界在angular落弯曲。 我希望它看起来像这样：

所以，我一直无法find办法做到这一点。 文档不是很详细。

Answer 1

那么在你看来，圆angular已经过时了？ 我也是这个意见，但是因为它似乎Microsoft没有。 因为如果在CTChartSpace中没有设置RoundedCorners ，那么默认情况下是true 。

幸运的是，我们可以根据需要使用以下方法进行设置：

 private static void setRoundedCorners(XSSFChart chart, boolean setVal) { if (chart.getCTChartSpace().getRoundedCorners() == null) chart.getCTChartSpace().addNewRoundedCorners(); chart.getCTChartSpace().getRoundedCorners().setVal(setVal); } 

完整的例子：

 import java.io.FileOutputStream; import java.io.IOException; import org.apache.poi.ss.usermodel.Cell; import org.apache.poi.ss.usermodel.Chart; import org.apache.poi.ss.usermodel.ClientAnchor; import org.apache.poi.ss.usermodel.Drawing; import org.apache.poi.ss.usermodel.Row; import org.apache.poi.ss.usermodel.Sheet; import org.apache.poi.ss.usermodel.Workbook; import org.apache.poi.ss.usermodel.charts.AxisCrosses; import org.apache.poi.ss.usermodel.charts.AxisPosition; import org.apache.poi.ss.usermodel.charts.ChartAxis; import org.apache.poi.ss.usermodel.charts.ChartDataSource; import org.apache.poi.ss.usermodel.charts.ChartLegend; import org.apache.poi.ss.usermodel.charts.DataSources; import org.apache.poi.ss.usermodel.charts.LegendPosition; import org.apache.poi.ss.usermodel.charts.LineChartData; import org.apache.poi.ss.usermodel.charts.ValueAxis; import org.apache.poi.ss.util.CellRangeAddress; import org.apache.poi.xssf.usermodel.XSSFWorkbook; import org.apache.poi.xssf.usermodel.XSSFChart; /** * Line chart example. */ public class LineChart { private static void setRoundedCorners(XSSFChart chart, boolean setVal) { if (chart.getCTChartSpace().getRoundedCorners() == null) chart.getCTChartSpace().addNewRoundedCorners(); chart.getCTChartSpace().getRoundedCorners().setVal(setVal); } public static void main(String[] args) throws IOException { Workbook wb = new XSSFWorkbook(); Sheet sheet = wb.createSheet("linechart"); final int NUM_OF_ROWS = 3; final int NUM_OF_COLUMNS = 10; // Create a row and put some cells in it. Rows are 0 based. Row row; Cell cell; for (int rowIndex = 0; rowIndex < NUM_OF_ROWS; rowIndex++) { row = sheet.createRow((short) rowIndex); for (int colIndex = 0; colIndex < NUM_OF_COLUMNS; colIndex++) { cell = row.createCell((short) colIndex); cell.setCellValue(colIndex * (rowIndex + 1)); } } Drawing<?> drawing = sheet.createDrawingPatriarch(); ClientAnchor anchor = drawing.createAnchor(0, 0, 0, 0, 0, 5, 10, 15); Chart chart = drawing.createChart(anchor); setRoundedCorners((XSSFChart)chart, false); ChartLegend legend = chart.getOrCreateLegend(); legend.setPosition(LegendPosition.TOP_RIGHT); LineChartData data = chart.getChartDataFactory().createLineChartData(); // Use a category axis for the bottom axis. ChartAxis bottomAxis = chart.getChartAxisFactory().createCategoryAxis(AxisPosition.BOTTOM); ValueAxis leftAxis = chart.getChartAxisFactory().createValueAxis(AxisPosition.LEFT); leftAxis.setCrosses(AxisCrosses.AUTO_ZERO); ChartDataSource<Number> xs = DataSources.fromNumericCellRange(sheet, new CellRangeAddress(0, 0, 0, NUM_OF_COLUMNS - 1)); ChartDataSource<Number> ys1 = DataSources.fromNumericCellRange(sheet, new CellRangeAddress(1, 1, 0, NUM_OF_COLUMNS - 1)); ChartDataSource<Number> ys2 = DataSources.fromNumericCellRange(sheet, new CellRangeAddress(2, 2, 0, NUM_OF_COLUMNS - 1)); data.addSeries(xs, ys1); data.addSeries(xs, ys2); chart.plot(data, bottomAxis, leftAxis); // Write the output to a file FileOutputStream fileOut = new FileOutputStream("ooxml-line-chart.xlsx"); wb.write(fileOut); fileOut.close(); wb.close(); } }