读取excel表格中的数据存入数据库中

/**
 * 导入人员部门信息表在membercopy中，二级部门在prop3字段中。
 * @throws IOException
 */
public  void updateDepartment() throws IOException {
    List<IndividualPv> allByExcel = getAllByExcel("C:\\工作\\小工具开发资料\\人员信息.xls");
    for (IndividualPv in : allByExcel ) {
        pvInfoMapper.updateBzcMember(in);
    }
}

public List<IndividualPv> getAllByExcel(String file) throws IOException {
    FileInputStream fileInputStream = new FileInputStream(file);
    HSSFWorkbook hssfWorkbook = new HSSFWorkbook(fileInputStream);
    List<IndividualPv> list = new ArrayList<>();
    IndividualPv individualPv = null;
    for (int numShell = 0; numShell < hssfWorkbook.getNumberOfSheets(); numShell++) {
        HSSFSheet sheetAt = hssfWorkbook.getSheetAt(numShell);
        if (sheetAt == null){
            continue;
        }
        for (int rowNum = 1; rowNum <= sheetAt.getLastRowNum(); rowNum++) {
            HSSFRow row = sheetAt.getRow(rowNum);
            if (row != null ){
                individualPv = new IndividualPv();
                individualPv.setUsername(getValue(row.getCell(0)));
                individualPv.setRealName(getValue(row.getCell(1)));
                individualPv.setDepartmentFirst(getValue(row.getCell(2)));
                individualPv.setDepartment(getValue(row.getCell(3)));
                individualPv.setLastLoginTime(getValue(row.getCell(4)));
                list.add(individualPv);
            }
        }
    }
    return  list;
}
@SuppressWarnings("static-access")
private String getValue(HSSFCell hssfCell) {
    if (hssfCell.getCellType() == hssfCell.CELL_TYPE_BOOLEAN) {
        // 返回布尔类型的值
        return String.valueOf(hssfCell.getBooleanCellValue());
    } else if (hssfCell.getCellType() == hssfCell.CELL_TYPE_NUMERIC) {
        // 返回数值类型的值
        return String.valueOf(hssfCell.getNumericCellValue());
    } else {
        // 返回字符串类型的值
        return String.valueOf(hssfCell.getStringCellValue());
    }
}