如何通过Java代码在Excel中创build可search的下拉列表

我想创build下拉列表，它必须作为用户types来search，必须select所有相关的值。

我的Java代码是这样的：

XSSFWorkbook workbook = new XSSFWorkbook(); // Create a blank sheet XSSFSheet sheet = workbook.createSheet("testing"); // This data needs to be written (Object[]) Map<String, Object[]> data = new TreeMap<String, Object[]>(); // String fileType = ImportItemFileType.Medicine.name(); String fileName = fileType.getType(); Object[] columnName = new Object[1]; columnName[0] = "AutoSearch"; data.put("1", columnName); // Iterate over data and write to sheet Set<String> keyset = data.keySet(); int rownum = 0; int cellnum = 0; for (String key : keyset) { Row row = sheet.createRow(rownum++); Object[] objArr = data.get(key); for (Object obj : objArr) { Cell cell = row.createCell(cellnum++); // System.out.println("cell num---------------------------------------------------"+ // cellnum); if (obj instanceof String) cell.setCellValue((String) obj); else if (obj instanceof Integer) cell.setCellValue((Integer) obj); } } // department drop down List<String> list = new ArrayList<>(); list.add("unm"); list.add("hcg"); list.add("star"); list.add("changa"); list.add(0, ""); String[] departmentArray = new String[list.size()]; departmentArray = list.toArray(new String[list.size()]); XSSFSheet hiddenDep = workbook.createSheet("hiddenDepartment"); for (int i = 0, length = departmentArray.length; i < length; i++) { String name = departmentArray[i]; System.out.println("name "+name); XSSFRow row = hiddenDep.createRow(i); XSSFCell cell = row.createCell(0); cell.setCellValue(name); } DataValidation dataValidationDep = null; DataValidationConstraint constraintDep = null; DataValidationHelper validationHelperDep = null; validationHelperDep = new XSSFDataValidationHelper(sheet); CellRangeAddressList addressListDep = new CellRangeAddressList(1, 10, 0, 0); constraintDep = validationHelperDep .createFormulaListConstraint("hiddenDepartment!$A$1:$A$" + departmentArray.length); dataValidationDep = validationHelperDep.createValidation(constraintDep, addressListDep); dataValidationDep.setSuppressDropDownArrow(true); workbook.setSheetHidden(1, true); dataValidationDep.setShowErrorBox(true); sheet.addValidationData(dataValidationDep); for (int j1 = 0; j1 <= cellnum; j1++) { if(j1 == 0){ sheet.setColumnWidth(0, 2000); }else{ sheet.autoSizeColumn(j1); } } String filePath = ""; try { filePath = MY_PATH + fileName + ".xlsx"; FileOutputStream out = new FileOutputStream(new File(filePath)); workbook.write(out); out.close(); System.out .println("howtodoinjava_demo.xlsx written successfully on disk."); } catch (Exception e) { e.printStackTrace(); } 

在这里，我创build了隐藏表单作为隐藏表单，将用于显示下拉菜单，将应用于A1单元格到A10单元格。

问题是当我的下拉菜单中有50个以上的值时，我想将它作为用户types进行search，只有它的相应数据需要显示。 在这里input图像说明

你可以看到在这里下载img。