Exception in thread “main” java.lang.IllegalStateException: Cannot get a text value from a numeric cell

问题

I have written code as below to fetch value from Excel.

String CID = s1.getRow(i).getCell(0).getStringCellValue();

but in excel, 1st cell is a numeric value, but in above code I am trying to fetch String cell value. thats why I am getting error as :

Exception in thread "main" java.lang.IllegalStateException: Cannot get a text value from a numeric cell

Can anyone please provide a solution for this. how to fetch the numeric value from excel?

回答1:

getCellType() for any cell gives you the type of the cell.The types are:

Cell.CELL_TYPE_BLANK
Cell.CELL_TYPE_NUMERIC
Cell.CELL_TYPE_STRING
Cell.CELL_TYPE_FORMULA
Cell.CELL_TYPE_BOOLEAN
Cell.CELL_TYPE_ERROR

It is better to use a switch statement and collect the correct type of cell value. There exists getNumericCellValue() and getStringCellValue() functions but it is safer with types.

回答2:

I'm not sure, but I think that exists getNumericalCellValue() or getIntegerCellValue() which returns what you want.

回答3:

Add apostrophe as prefix to that number in cell, automatically it will be converted as text. it had worked for me

回答4:

Check the cell type first and then get its value.

           row.getCell(index).getCellType();
Number ==> row.getCell(index).getNumericCellValue();
String ==> row.getCell(index).getStringCellValue();

回答5:

You should use it =>

String CID = new BigDecimal(s1.getRow(i).getCell(0).getNumericCellValue()).toString();

回答6:

String unitPrice = new Float(wb.getSheetAt(0).getRow(0).getCell(7).getNumericCellValue()).toString();

Note: its the best way to get the data in string if the value is stored in the numerical type in excel file. where we are getting the data from 7th cell of 1st row.

来源：https://stackoverflow.com/questions/24529486/exception-in-thread-main-java-lang-illegalstateexception-cannot-get-a-text-va

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java

apache-poi