Cannot import XSSF in Apache POI

Question

I am referencing the version 3.7 of the Apache POI and I am getting a "cannot be resolved" error when I do:

import org.apache.poi.xssf.usermodel.XSSFWorkbook;

Other import statements that reference POI DO NOT give me errors, such as:

import org.apache.poi.ss.usermodel.*;

Any ideas??

Answer 1

After trying multiple things,what really worked was: 1. downloading "poi" and "poi-ooxml" manually 2.Adding these d/w jars into "Maven Dependencies"

Answer 2

The classes for the OOXML file formats (such as XSSF for .xlsx) are in a different Jar file. You need to include the poi-ooxml jar in your project, along with the dependencies for it

You can get a list of all the components and their dependencies on the POI website here.

What you probably want to do is download the 3.11 binary package, grab the poi-ooxml jar from it, and the dependencies in the ooxml-lib directory. Import these into your project and you'll be sorted.

Alternately, if you use Maven, you can see here for the list of the artificats you'll want to depend on, but it'd want to be something like:

<dependency>
   <groupId>org.apache.poi</groupId>
   <artifactId>poi-ooxml</artifactId>
   <version>3.11</version>
</dependency>

The poi-ooxml maven dependency will pull in the main POI jar and the dependencies for you automatically. If you want to work with the non-spreadsheet formats, you'd also want to depend on the poi-scratchpad artifact too, as detailed on the POI components page

Answer 3

I needed the following files for my implementation:

• poi-ooxml-schemas-3.14.20160307.jar
• commons-codec-1.10.jar (this was in "lib" folder of the zip file you get from apache)
• curvesapi-1.03.jar (in "ooxml-lib" folder)
• poi-3.14-20160307.jar
• poi-ooxml-3.14-20160307.jar
• xmlbeans-2.6.0.jar (in "ooxml-lib" folder)

(though honestly, I'm not completely sure they are all necessary...) It's a little confusing because they are packaged that way. I needed to place them manually in my own "lib" folder and then add the references...

Maven always seems to download more than I need, so I always place libaries/dlls and things like that manually.

Answer 4

Problem: While importing the " org.apache.poi.xssf.usermodel.XSSFWorkbook"class showing an error in eclipse.

Solution: Use This maven dependency to resolve this problem:

<dependency>
   <groupId>org.apache.poi</groupId>
   <artifactId>poi-ooxml</artifactId>
   <version>3.15</version>
</dependency>

-Hari Krishna Neela

Answer 5

For OOXML to work you need the POI-OOXML jar which is separately packaged from the POI jar.

Download the POI-OOXML jar from the following location -

http://repo1.maven.org/maven2/org/apache/poi/poi-ooxml/3.11/poi-ooxml-3.11.jar

For Maven2 add the below dependency -

<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi-ooxml</artifactId>
    <version>3.11</version>
</dependency>

Answer 6

1) imported all the JARS from POI folder 2) Imported all the JARS from ooxml folder which a subdirectory of POI folder 3) Imported all the JARS from lib folder which is a subdirectory of POI folder

String fileName = "C:/File raw.xlsx";
File file = new File(fileName);
FileInputStream fileInputStream;
Workbook workbook = null;
Sheet sheet;
Iterator<Row> rowIterator;
try {
        fileInputStream = new FileInputStream(file);
        String fileExtension = fileName.substring(fileName.indexOf("."));
        System.out.println(fileExtension);
        if(fileExtension.equals(".xls")){
        workbook  = new HSSFWorkbook(new POIFSFileSystem(fileInputStream));
        }
        else if(fileExtension.equals(".xlsx")){
        workbook  = new XSSFWorkbook(fileInputStream);
        }
        else {
        System.out.println("Wrong File Type");
        } 
        FormulaEvaluator evaluator workbook.getCreationHelper().createFormulaEvaluator();
        sheet = workbook.getSheetAt(0);
        rowIterator = sheet.iterator();
        while(rowIterator.hasNext()){
        Row row = rowIterator.next();
        Iterator<Cell> cellIterator = row.cellIterator();
        while (cellIterator.hasNext()){
        Cell cell = cellIterator.next();
        //Check the cell type after evaluating formulae
       //If it is formula cell, it will be evaluated otherwise no change will happen
        switch (evaluator.evaluateInCell(cell).getCellType()){
        case Cell.CELL_TYPE_NUMERIC:
        System.out.print(cell.getNumericCellValue() + " ");
        break;
        case Cell.CELL_TYPE_STRING:
        System.out.print(cell.getStringCellValue() + " ");
        break;
        case Cell.CELL_TYPE_FORMULA:
        Not again
        break;
        case Cell.CELL_TYPE_BLANK:
        break;
        }
}
 System.out.println("\n");
}
//System.out.println(sheet);
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e){
e.printStackTrace();
}​