本文介绍如何使用Spire.XLS for Java在Excel单元格中设置数据验证。

import com.spire.xls.*;

public class ApplyDataValidation {

    public static void main(String[] args) {

        //创建Workbook对象
        Workbook workbook = new Workbook();

        //获取第一个工作表
        Worksheet sheet = workbook.getWorksheets().get(0);

        //在单元格B3中设置数字验证-仅允许输入1到100之间的数
        sheet.getCellRange("B2").setText("请输入1-100之间的数：");
        CellRange rangeNumber = sheet.getCellRange("B3");
        rangeNumber.getDataValidation().setCompareOperator(ValidationComparisonOperator.Between);
        rangeNumber.getDataValidation().setFormula1("1");
        rangeNumber.getDataValidation().setFormula2("100");
        rangeNumber.getDataValidation().setAllowType(CellDataType.Decimal);
        rangeNumber.getDataValidation().setErrorMessage("Please input correct number!");
        rangeNumber.getDataValidation().setShowError(true);
        rangeNumber.getCellStyle().setKnownColor(ExcelColors.Gray25Percent);

        //在单元格B6中设置日期验证-仅允许输入1/1/1970到12/31/1970之间的日期
        sheet.getCellRange("B5").setText("请输入1/1/1970-12/31/1970之间的日期：");
        CellRange rangeDate = sheet.getCellRange("B6");
        rangeDate.getDataValidation().setAllowType(CellDataType.Date);
        rangeDate.getDataValidation().setCompareOperator(ValidationComparisonOperator.Between);
        rangeDate.getDataValidation().setFormula1("1/1/1970");
        rangeDate.getDataValidation().setFormula2("12/31/1970");
        rangeDate.getDataValidation().setErrorMessage("Please input correct date!");
        rangeDate.getDataValidation().setShowError(true);
        rangeDate.getDataValidation().setAlertStyle(AlertStyleType.Warning);
        rangeDate.getCellStyle().setKnownColor(ExcelColors.Gray25Percent);

        //在单元格B9设置字符长度验证-仅允许输入5个字符以内的文本
        sheet.getCellRange("B8").setText("请输入不超过5个字符的文本：");
        CellRange rangeTextLength = sheet.getCellRange("B9");
        rangeTextLength.getDataValidation().setAllowType(CellDataType.TextLength);
        rangeTextLength.getDataValidation().setCompareOperator(ValidationComparisonOperator.LessOrEqual);
        rangeTextLength.getDataValidation().setFormula1("5");
        rangeTextLength.getDataValidation().setErrorMessage("Enter a Valid String!");
        rangeTextLength.getDataValidation().setShowError(true);
        rangeTextLength.getDataValidation().setAlertStyle(AlertStyleType.Stop);
        rangeTextLength.getCellStyle().setKnownColor(ExcelColors.Gray25Percent);

        //第二列自适应宽度
        sheet.autoFitColumn(2);

        //保存文档
        workbook.saveToFile("output/DataValidation.xlsx", ExcelVersion.Version2016);
    }
}