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String path = "d:\\success.xlsx";
String sheetName = "sheetlist";
XSSFWorkbook wb = null;
XSSFSheet sheetlist = null;
File inputFile = new File(path);
if (inputFile.exists()) {
wb = new XSSFWorkbook(new FileInputStream(path));
} else {
wb = new XSSFWorkbook();// excel文件对象
}
if (wb.getSheet(sheetName) == null) {
sheetlist = wb.createSheet(sheetName);// 工作表对象
} else {
sheetlist = wb.getSheet(sheetName);// 工作表对象
}
DataValidationHelper helper = sheetlist.getDataValidationHelper();
List<XSSFDataValidation> dataValidations = sheetlist.getDataValidations();
for (XSSFDataValidation dv : dataValidations) {
// 已有的验证
}
//
CellRangeAddressList dstAddrList = new CellRangeAddressList(0, 500, 0, 0);// 规则一单元格范围
String[] textlist = { "列表1", "列表2", "列表3", "列表4", "列表5" };
DataValidation dstDataValidation = helper.createValidation(helper.createExplicitListConstraint(textlist),
dstAddrList);
dstDataValidation.createPromptBox("提示头", "提示内容");
dstDataValidation.setShowErrorBox(true);
dstDataValidation.setShowPromptBox(true);
dstDataValidation.setEmptyCellAllowed(false);
sheetlist.addValidationData(dstDataValidation);
CellRangeAddressList dstAddrList2 = new CellRangeAddressList(0, 500, 1, 1);// 规则二单元格范围
DataValidationConstraint dvc = helper.createNumericConstraint(DVConstraint.ValidationType.INTEGER,
DVConstraint.OperatorType.BETWEEN, "0", "9999999999");
DataValidation dstDataValidation2 = helper.createValidation(dvc, dstAddrList2);
dstDataValidation2.createErrorBox("填错输啦！", "只能填那个啥啥啥");
dstDataValidation2.setEmptyCellAllowed(false);
dstDataValidation2.setShowErrorBox(true);
sheetlist.addValidationData(dstDataValidation2);
FileOutputStream out = new FileOutputStream(path);
wb.write(out);
out.close();
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