摘要：單元格各類型數據讀取基本類型處理的數據包括字符型數據，數字日期公式等。下面是單元格類型說明實例解析中數據，要求轉換為文本方式存儲寫一個解析的抽象類版本的版本的解析的文件格式有誤

1.單元格各類型數據讀取

1.1 基本類型

處理的Excel數據包括字符型數據，數字、日期、公式等。

下面是單元格類型說明：

2實例
解析excel中數據，要求轉換為文本方式存儲
2.1 寫一個excel解析的抽象類

public abstract class ExcelParser {

        private String fileName;
        private InputStream inputStream;
    
        private final static String excel2003L = ".xls";//2003- 版本的excel
        private final static String excel2007U = ".xlsx";//2007+ 版本的excel
    
        protected final static DecimalFormat decimalFormat = new DecimalFormat("0");
        protected final static SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy/MM/dd");
    
        protected final static String[] columnStr = new String[]{
                "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"
        };
           protected OrderExcelParser(String fileName, InputStream inputStream) {
            this.fileName = fileName;
            this.inputStream = inputStream;
        }
    
        protected Workbook getWorkbook() throws Exception {
            try {
                String fileType = fileName.substring(fileName.lastIndexOf("."));
                if (excel2003L.equals(fileType)) {
                    return new HSSFWorkbook(inputStream); //2003-
                } else if (excel2007U.equals(fileType)) {
                    return new XSSFWorkbook(inputStream); //2007+
                } else {
                    throw new Exception();
                }
            } catch (Exception e) {
                throw new Exception("解析的文件格式有誤！");
            }
        }
    
        protected abstract void parseTitles(int rowIndex) throws Exception;
    
        protected String getCellStringValue(Cell cell) throws Exception {
            String cellValue = "";
            if (cell == null) {
                return cellValue;
            } else if (cell.getCellType() == Cell.CELL_TYPE_STRING) {
                cellValue = cell.getStringCellValue();
            } else if (cell.getCellType() == Cell.CELL_TYPE_NUMERIC) {
                if (HSSFDateUtil.isCellDateFormatted(cell)) {
                    double d = cell.getNumericCellValue();
                    Date date = HSSFDateUtil.getJavaDate(d);
                    cellValue = simpleDateFormat.format(date);
                } else {
                    cellValue = decimalFormat.format((cell.getNumericCellValue()));
                }
            } else if (cell.getCellType() == Cell.CELL_TYPE_BLANK) {
                cellValue = "";
            } else if (cell.getCellType() == Cell.CELL_TYPE_BOOLEAN) {
                cellValue = String.valueOf(cell.getBooleanCellValue());
            } else if (cell.getCellType() == Cell.CELL_TYPE_ERROR) {
                cellValue = "";
            } else if (cell.getCellType() == Cell.CELL_TYPE_FORMULA) {
                cellValue = cell.getCellFormula();
            }
           
            return cellValue.trim();
        }
    }