导入Excel加行公式和验证

package com.sprucetec.tms.controller.fee.export;

import com.sprucetec.tms.controller.base.BaseFeeExportExcel;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFDataFormat;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.util.CellRangeAddress;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Arrays;
import java.util.List;

/**
 * 基础运费导出excel
 * yangweiqiang
 * 2016.7.19
 */
public class BasicDistributeFeeExportExcel extends BaseFeeExportExcel {

    public BasicDistributeFeeExportExcel(String title, String[] rowName, List<Object[]> dataList, HttpServletResponse response, HttpServletRequest request, String selectedCityName, String month) {
        super(title, rowName, dataList, response, request, selectedCityName, month);
    }

    /*
     * 实现基础运费的导出逻辑
     */
    @Override
    public void export() throws Exception {

        //设置excel的表头
        Workbook workbook = setExcelTitle();
        HSSFSheet sheet = (HSSFSheet) workbook.getSheet(title);

        HSSFCellStyle style = getStyle(workbook);

        //将查询出的数据设置到sheet对应的单元格中
        for (int i = 0; i < dataList.size(); i++) {

            Object[] obj = dataList.get(i);//遍历每个对象
            HSSFRow row = sheet.createRow(i + 3);//创建所需的行数

            for (int j = 0; j < obj.length; j++) {
                HSSFCell cell = null;   //设置单元格的数据类型
                if (j == 0) {
                    cell = row.createCell(j);
                    cell.setCellValue(String.valueOf(i + 1));
                } else {
                    cell = row.createCell(j);
                    if (!"".equals(obj[j]) && obj[j] != null) {
                        if (j == 10) {
                            int rownum = row.getRowNum() + 1;
                            String formula = "SUM(L" + rownum + ",O" + rownum + ",P" + rownum + ",Q" + rownum + ",R" + rownum + ",S" + rownum + ",W" + rownum + ")-SUM(T" + rownum + ",U" + rownum + ",V" + rownum + ")";
                            cell.setCellFormula(formula);
                        }
                        if (j == 11 || (14 <= j && j <= 22)) {
                            cell.setCellValue(Double.parseDouble(obj[j].toString()));                        //设置单元格的值
                        } else {
                            cell.setCellValue(obj[j].toString());
                        }
                    } else {
                        cell.setCellValue("");
                    }
                }
                cell.setCellStyle(style);                                    //设置单元格样式
            }
        }

        //让列宽随着导出的列长自动适应
        setSheetColumnWidthAutoResize(sheet, rowName.length);

        //添加数据校验
        CellRangeAddress address1 = new CellRangeAddress(3, sheet.getLastRowNum(), 10, 11);
        CellRangeAddress address2 = new CellRangeAddress(3, sheet.getLastRowNum(), 14, 22);
        addSheetValidationByNumberData(sheet, Arrays.asList(address1, address2), 0, 10000);

        //设置二位小数
        HSSFDataFormat dataFormat = (HSSFDataFormat) workbook.createDataFormat();
        short formatStyle = dataFormat.getFormat("0.00");
        int totalRows = dataList.size();
        for (int i = 0; i < totalRows; i++) {
            HSSFRow row = sheet.getRow(i + 3);
            for (int j = 0; j < rowName.length; j++) {
                if (j == 11 || (j >= 14 && j <= 22)) {
                    HSSFCell cell = row.getCell(j);
                    HSSFCellStyle tmpStyle = cell.getCellStyle();
                    tmpStyle.setDataFormat(formatStyle);
                    cell.setCellType(Cell.CELL_TYPE_NUMERIC);
                }
            }
        }

        //do Export
        doExport(workbook);
    }
}