如何使用Apache POI在电子表格单元格中旋转文本？

Question

如何在Apache POI的HSSFCell类中旋转文本？

Answer 1

使用HSSFCellStyle，该类有一个名为setRotation（短旋转）的方法，它将旋转文本。您所做的只是将单元格样式应用于单元格：

HSSFCellStyle myStyle = workbook.createCellStyle();
myStyle.setRotation((short)90);

HSSFCell c = row.createCell(columnNumber);
c.setCellStyle(myStyle);

Answer 2

CellStyle cssVertical = wb.createCellStyle();
cssVertical.setFont(f);
cssVertical.setRotation((short)90);

Answer 3

XSSFWorkbook workbook = new XSSFWorkbook();
XSSFSheet sheet = workbook.createSheet();
XSSFRow row = sheet.createRow(1);
XSSFCell cell = row.createCell(1);

XSSFCellStyle cs = workbook.createCellStyle();
cs.setRotation((short) 90);              // set text rotation
cs.getStyleXf().setApplyAlignment(true); // <<< Important

cell.setCellValue("Vertical Text");
cell.setCellStyle(cs);

workbook.write(new FileOutputStream("out.xlsx"));

Apache POI 3.17，需要在cellXfs部分中手动添加alignment =“ true”属性。