Issues resolving XSSFWorkbook - Java - POI .jar

问题:

I'm trying to do work upgrading a Java application to handle .xlsx, using a newer POI library than our existing one. I'm having issues similar to those mentioned in the comments to the answer here: Apache POI, using both XSSF and HSSF

I'm pointing the new ss.usermodel, but it keeps telling me it can't resolve the XSSF workbook declaration:

Workbook xlsImport = new XSSFWorkbook();

I dug through some of their documentation and saw that XSSFWorkbook isn't a part of org.apache.poi.ss.usermodel. It's a part of org.apache.poi.xssf.usermodel.XSSFWorkbook. But there's no poi.xssf for me to import. Am I pointing to the wrong thing? I'm using POI 3.7 Thanks for any help you can provide.

回答1:

You need to include the poi-ooxml jars to get the XSSF library. The poi jar only has the HSSF libraries.

回答2:

You need to include poi-ooxml jars. You can add it to pom.xml file

<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi-ooxml</artifactId>
    <version>3.10-FINAL</version>
</dependency>

回答3:

First you need to include the proper jar files into your libraries, poi-ooxml-schemas-3.8-20120326.jar. You can find these at http://poi.apache.org/download.html. And you need to add the following link to your java file.

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

回答4:

if you created maven project use below dependency in pom.xml file

<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi-ooxml</artifactId>
    <version>3.9</version>
</dependency>

otherwise import this in your java file

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