如何使用Java从Excel中获取单元格，无论该单元格可能包含字符串还是数字值？

Question

Here is my code:

long tin=0; 
tin = (long)row.getCell(10).getNumericCellValue();

tin value of excel may contains string or only numeric value.. if tin value is numeric am able to fetch data.. if tin value is String am getting error.

Answer 1

You can check the type of the cell using Cell#getCellTypeEnum() . Possible returned values are:

• _NONE - Unknown type, used to represent a state prior to initialization or the lack of a concrete type.
• BLANK - Blank cell type
• BOOLEAN - Boolean cell type
• ERROR - Error cell type
• FORMULA - Formula cell type
• NUMERIC - Numeric cell type (whole numbers, fractional numbers, dates)
• STRING - String (text) cell type

In other words you should try the following scaffold:

tin = row.getCell(10).getCellTypeEnum().equals(CellType.NUMERIC) ? 
     (long)row.getCell(10).getNumericCellValue() :
     Long.parseLong(row.getCell(10).getStringCellValue());