import org.apache.poi.hssf.usermodel.DVConstraint;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFDataValidation;
import org.apache.poi.hssf.usermodel.HSSFDataValidationHelper;
import org.apache.poi.hssf.usermodel.HSSFFont;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.util.CellRangeAddress;
import org.apache.poi.hssf.util.CellRangeAddressList;
import org.apache.poi.ss.usermodel.CellStyle;
import org.apache.poi.ss.usermodel.DataValidation;
import org.apache.poi.ss.usermodel.DataValidationConstraint;
import org.apache.poi.ss.usermodel.DataValidationHelper;
import org.apache.poi.ss.usermodel.IndexedColors;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.usermodel.DataValidationConstraint.ValidationType;
import org.apache.poi.ss.usermodel.DataValidationConstraint.OperatorType;

    

/**
     * 设定为输入类型为数值
     * @param firstRow
     * @param endRow
     * @param firstCol
     * @param endCol
     * 注意：如果是一个单元格，需要firstRow = endRow, firstCol = endCol
     * @return
     */
    public static HSSFDataValidation setDataValidation(int firstRow,int endRow,int firstCol,int endCol) 
         { 
             
             CellRangeAddressList regions = new CellRangeAddressList(firstRow, endRow, firstCol, endCol);
             //数值型，大于0
            DVConstraint constraint  = DVConstraint.createNumericConstraint(ValidationType.DECIMAL, OperatorType.GREATER_THAN, "0", null);
            //整数   1到100之间
//              DVConstraint constraint  = DVConstraint.createNumericConstraint(ValidationType.INTEGER, OperatorType.BETWEEN, "1", “100");
              
            HSSFDataValidation dataValidation = new HSSFDataValidation(regions, constraint);//add
                            
            dataValidation.createErrorBox("输入值类型或大小有误", "数值型，请输入不小于0的数值");
            dataValidation.createPromptBox("", null);
            dataValidation.setShowErrorBox(true);

           return dataValidation;
          }

/** 
     * 添加数据有效性检查. 
     * @param sheet 要添加此检查的Sheet 
     * @param firstRow 开始行 
     * @param lastRow 结束行 
     * @param firstCol 开始列 
     * @param lastCol 结束列 
     * @param explicitListValues 有效性检查的下拉列表 
     * @throws IllegalArgumentException 如果传入的行或者列小于0(< 0)或者结束行/列比开始行/列小 
     * 注意： 如果是一个单元格，需要 firstRow = lastRow , firstCol= lastCol
     */  
    public static void setValidationData(Sheet sheet, int firstRow,  int lastRow,  
            int firstCol,  int lastCol,String[] explicitListValues) throws IllegalArgumentException{  
        if (firstRow < 0 || lastRow < 0 || firstCol < 0 || lastCol < 0 || lastRow < firstRow || lastCol < firstCol) {  
            throw new IllegalArgumentException("Wrong Row or Column index : " + firstRow+":"+lastRow+":"+firstCol+":" +lastCol);  
        }  
        if (sheet instanceof XSSFSheet) {  
            XSSFDataValidationHelper dvHelper = new XSSFDataValidationHelper((XSSFSheet)sheet);  
            XSSFDataValidationConstraint dvConstraint = (XSSFDataValidationConstraint) dvHelper  
                    .createExplicitListConstraint(explicitListValues);  
            CellRangeAddressList addressList = new CellRangeAddressList(firstRow, lastRow, firstCol, lastCol);  
            XSSFDataValidation validation = (XSSFDataValidation) dvHelper.createValidation(dvConstraint, addressList);  
            validation.setSuppressDropDownArrow(true);  
            validation.setShowErrorBox(true);  
            sheet.addValidationData(validation);  
        } else if(sheet instanceof HSSFSheet){  
            CellRangeAddressList addressList = new CellRangeAddressList(firstRow, lastRow, firstCol, lastCol);  
            DVConstraint dvConstraint = DVConstraint.createExplicitListConstraint(explicitListValues);  
            DataValidation validation = new HSSFDataValidation(addressList, dvConstraint);  
            validation.setSuppressDropDownArrow(true);  
            validation.setShowErrorBox(true);  
            sheet.addValidationData(validation);  
        }  
    }   

        /**
         * 设置模板文件的输入项表格样式
　　　　　*  注意不要频繁的createCellStyle对象，声明一个CellStyle提供给相同的Cell即可，
         * 否则容易造成 4000 styles异常
         * @param wb
         * @return
         */
        public static CellStyle setValueStyle(Workbook wb) {
//The maximum number of cell styles was exceeded. You can define up to 4000 styles in a .xls workbook
            CellStyle style = wb.createCellStyle();
            //对齐方式设置
            style.setAlignment(CellStyle.ALIGN_LEFT);
            //边框颜色和宽度设置
            style.setBorderBottom(CellStyle.BORDER_THIN);
            style.setBottomBorderColor(IndexedColors.BROWN.getIndex());
            style.setBorderLeft(CellStyle.BORDER_THIN);
            style.setLeftBorderColor(IndexedColors.BROWN.getIndex());
            style.setBorderRight(CellStyle.BORDER_THIN);
            style.setRightBorderColor(IndexedColors.BROWN.getIndex());
            style.setBorderTop(CellStyle.BORDER_THIN);
            style.setTopBorderColor(IndexedColors.BROWN.getIndex());
            style.setFillBackgroundColor(IndexedColors.GREY_25_PERCENT.getIndex());
            //设置背景颜色
            style.setFillForegroundColor(IndexedColors.GREY_25_PERCENT.getIndex());
            style.setFillPattern(CellStyle.SOLID_FOREGROUND);
            //设置自动换行
            style.setWrapText(true);
            return style;
        }