Apache POI Maven Setup Guide

1 year ago
Olivia Parker
1 minute

To use Apache POI in Maven, you need to add the following dependency in the pom.xml file of your project.

<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi</artifactId>
    <version>5.2.1</version>
</dependency>
<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi-ooxml</artifactId>
    <version>5.2.1</version>
</dependency>

Then you can utilize the API provided by Apache POI to manipulate Excel files in your project, for example:

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

import java.io.FileOutputStream;
import java.io.IOException;

public class ExcelWriter {

    public static void main(String[] args) {
        try (Workbook workbook = new XSSFWorkbook()) {
            Sheet sheet = workbook.createSheet("Sheet1");
            Row row = sheet.createRow(0);
            Cell cell = row.createCell(0);
            cell.setCellValue("Hello, World!");

            try (FileOutputStream fileOut = new FileOutputStream("workbook.xlsx")) {
                workbook.write(fileOut);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

This code demonstrates how to create an Excel file and write content in the first cell. You can use various classes and methods of Apache POI to manipulate Excel files as needed.

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