Question

我们使用sqlsheet库从Excel工作表中读取数据。 lib工作正常，但有一个问题，字段由公式计算。该单元格的值始终为空。

有没有办法告诉sqlsheet在执行数据查询之前评估单元格公式？

Answer 1

I decompiled the driver and within the XLSResultSet of the net.pcal.sqlsheet added in the following hssf cell check:

public static String getStrVal(Cell cell) {
    long ival = 0;
    Boolean bool = false;
    String cData = "";

        switch(cell.getCellType()){
            case Cell.CELL_TYPE_BLANK:
                cData = null;
                break;

            case Cell.CELL_TYPE_STRING:
                cData = cell.getStringCellValue();
                break;

            case Cell.CELL_TYPE_FORMULA:
                switch(cell.getCachedFormulaResultType()) {
                    case Cell.CELL_TYPE_NUMERIC:
                        cData = String.valueOf(cell.getNumericCellValue());
                        break;
                    case Cell.CELL_TYPE_STRING:
                        cData = String.valueOf(cell.getRichStringCellValue());
                        break;

                }
                break;
            default:
                cData = "unsupported cell type";
                break;
        }
        return cData;
}

Then to the existing string check modified it so it is as follows:

public String getString(String jdbcColumn) throws SQLException {
    Cell cell = getCell(jdbcColumn);
    if (cell == null) {
        return cell == null ? null : formatter.formatCellValue(cell);
    }else{
        String myCell = getStrVal(cell);
        return myCell;
    }
}

This resolved the issue for both formulas and for referenced cells.

Sqlsheet公式评估

1 个答案: