使用Java实现获取excel附件并解析

import org.apache.poi.poifs.filesystem.Ole10Native;
import org.apache.poi.poifs.filesystem.Ole10NativeException;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;

try (XSSFWorkbook workbook = new XSSFWorkbook(file.getInputStream())) {
    // 获取所有嵌入式文件
    List<PackagePart> partList = workbook.getAllEmbeddedParts();
    for (PackagePart part : partList) {
        InputStream emb = part.getInputStream();
        if (emb != null) {
            // 解析ole文件
            POIFSFileSystem fs = new POIFSFileSystem(emb);
            Ole10Native ole = Ole10Native.createFromEmbeddedOleObject(fs.getRoot());
            // 获取并处理原始文件名
            String originalName = ole.getLabel();
            // 获取文件内容
            byte[] fileContent = ole.getDataBuffer();
            // 这里可以添加业务处理逻辑
        }
    }
} catch (RuntimeException e) {
    throw new RuntimeException(e);
}

try (XSSFWorkbook workbook = new XSSFWorkbook(file.getInputStream())) {
}

List<PackagePart> partList = workbook.getAllEmbeddedParts();

for (PackagePart part : partList) {
    InputStream emb = part.getInputStream();
    if (emb != null) {
        // 处理输入流
    }
}

POIFSFileSystem fs = new POIFSFileSystem(emb);
Ole10Native ole = Ole10Native.createFromEmbeddedOleObject(fs.getRoot());

String originalName = ole.getLabel();  // 原始文件名
byte[] fileContent = ole.getDataBuffer();  // 文件内容

<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi</artifactId>
    <version>4.1.2</version>
</dependency>

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

import java.io.FileInputStream;
import java.io.IOException;

public class ExcelAttachmentReader {
    
    public void readAttachments(String filePath) {
        try {
            FileInputStream file = new FileInputStream(filePath);
            Workbook workbook = WorkbookFactory.create(file);
            Sheet sheet = workbook.getSheetAt(0);

            for (Row row : sheet) {
                for (Cell cell : row) {
                    if (cell.getCellTypeEnum() == CellType.ATTACHMENT) {
                        Attachment attachment = cell.getAttachment();
                        // 处理附件
                        System.out.println("Attachment found: " + attachment);
                    }
                }
            }

            file.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    
    public static void main(String[] args) {
        ExcelAttachmentReader reader = new ExcelAttachmentReader();
        reader.readAttachments("example.xlsx");
    }
}