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台账模版导入功能修复

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hzj
2026-05-20 15:58:48 +08:00
parent 11750a4f3a
commit 7eef16599f
5 changed files with 175 additions and 60 deletions
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53
pqs-common/common-poi/src/main/java/com/njcn/poi/excel/ExcelUtil.java
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@@ -239,18 +239,47 @@ public class ExcelUtil {
* @param strings 下拉内容
*/
public static void selectList(Workbook workbook, int firstCol, int lastCol, String[] strings) {
Sheet sheet = workbook.getSheetAt(0);
// 生成下拉列表
// 只对(x，x)单元格有效
CellRangeAddressList cellRangeAddressList = new CellRangeAddressList(2, 65535, firstCol, lastCol);
// 生成下拉框内容
DataValidationHelper dvHelper = sheet.getDataValidationHelper();
XSSFDataValidationConstraint dvConstraint = (XSSFDataValidationConstraint)
dvHelper.createExplicitListConstraint(strings);
XSSFDataValidation validation = (XSSFDataValidation) dvHelper.createValidation(
dvConstraint, cellRangeAddressList);
// 对sheet页生效
sheet.addValidationData(validation);
// Sheet sheet = workbook.getSheetAt(0);
// // 生成下拉列表
// // 只对(x，x)单元格有效
// CellRangeAddressList cellRangeAddressList = new CellRangeAddressList(2, 65535, firstCol, lastCol);
// // 生成下拉框内容
// DataValidationHelper dvHelper = sheet.getDataValidationHelper();
// XSSFDataValidationConstraint dvConstraint = (XSSFDataValidationConstraint)
// dvHelper.createExplicitListConstraint(strings);
// XSSFDataValidation validation = (XSSFDataValidation) dvHelper.createValidation(
// dvConstraint, cellRangeAddressList);
// // 对sheet页生效
// sheet.addValidationData(validation);
Sheet targetSheet = workbook.getSheetAt(0);
// ===================== 关键：每个下拉用唯一名称的隐藏Sheet =====================
String uniqueHiddenName = "dropdown_" + firstCol + "_" + lastCol + "_" + System.currentTimeMillis();
Sheet hiddenSheet = workbook.createSheet(uniqueHiddenName);
// 隐藏数据源Sheet
workbook.setSheetHidden(workbook.getSheetIndex(hiddenSheet), true);
// 写入选项到隐藏Sheet
for (int i = 0; i < strings.length; i++) {
Row row = hiddenSheet.createRow(i);
Cell cell = row.createCell(0);
cell.setCellValue(strings[i]);
}
// 构造引用公式（无长度限制）
String formula = uniqueHiddenName + "!$A$1:$A$" + strings.length;
// 下拉作用范围：第3行 ~ 65536行
CellRangeAddressList range = new CellRangeAddressList(2, 65535, firstCol, lastCol);
DataValidationHelper helper = targetSheet.getDataValidationHelper();
DataValidationConstraint constraint = helper.createFormulaListConstraint(formula);
DataValidation validation = helper.createValidation(constraint, range);
// 必加：防止下拉冲突、不显示
validation.setShowErrorBox(true);
validation.setShowPromptBox(true);
targetSheet.addValidationData(validation);
}
/**