使用poi導出Excel，並設定單元格內容類型，拋出異常

本例子使用的是HSSF,為Excel2003提供處理方案。

設定為輸入類型為數值

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;

    

/**
     * 設定為輸入類型為數值
     * @param firstRow
     * @param endRow
     * @param firstCol
     * @param endCol
     * 注意：如果是一個單元格，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);
             //數值型，大於0
            DVConstraint constraint  = DVConstraint.createNumericConstraint(ValidationType.DECIMAL, OperatorType.GREATER_THAN, "0", null);
            //整數   1到100之間
//              DVConstraint constraint  = DVConstraint.createNumericConstraint(ValidationType.INTEGER, OperatorType.BETWEEN, "1", “100");
              
            HSSFDataValidation dataValidation = new HSSFDataValidation(regions, constraint);//add
                            
            dataValidation.createErrorBox("輸入值類型或大小有誤", "數值型，請輸入不小於0的數值");
            dataValidation.createPromptBox("", null);
            dataValidation.setShowErrorBox(true);

           return dataValidation;
          }

設置為下拉列表選項

/** 
     * 添加數據有效性檢查. 
     * @param sheet 要添加此檢查的Sheet 
     * @param firstRow 開始行 
     * @param lastRow 結束行 
     * @param firstCol 開始列 
     * @param lastCol 結束列 
     * @param explicitListValues 有效性檢查的下拉列表 
     * @throws IllegalArgumentException 如果傳入的行或者列小於0(< 0)或者結束行/列比開始行/列小 
     * 注意： 如果是一個單元格，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);  
        }  
    }   

 

設置模板文件的輸入項表格樣式

        /**
         * 設置模板文件的輸入項表格樣式
         * @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();
            //對齊方式設置
            style.setAlignment(CellStyle.ALIGN_LEFT);
            //邊框顏色和寬度設置
            style.setBorderBottom(CellStyle.BORDER_THIN);
            style.setBottomBorderColor(IndexedColors.BLACK.getIndex());
            style.setBorderLeft(CellStyle.BORDER_THIN);
            style.setLeftBorderColor(IndexedColors.BLACK.getIndex());
            style.setBorderRight(CellStyle.BORDER_THIN);
            style.setRightBorderColor(IndexedColors.BLACK.getIndex());
            style.setBorderTop(CellStyle.BORDER_THIN);
            style.setTopBorderColor(IndexedColors.BLACK.getIndex());
            
//            style.setFillBackgroundColor(IndexedColors.GREY_25_PERCENT.getIndex());
            //設置背景顏色
//            style.setFillForegroundColor(IndexedColors.GREY_25_PERCENT.index);
            style.setFillBackgroundColor(HSSFColor.LIGHT_TURQUOISE.index);
            style.setFillForegroundColor(HSSFColor.LIGHT_TURQUOISE.index); //設置背景色
            style.setFillPattern(CellStyle.SOLID_FOREGROUND);
            //設置自動換行
            style.setWrapText(true);
            return style;
        }

POI HSSFColor 顏色索引對照表

 

參考：

使用POI為Excel添加數據有效性驗證

Java讀寫Excel之POI超入門

POI生成excel帶下拉

使用POI3.8 設置EXCEL2007的數據有效性

 

Apache POI使用詳解