java 利用poi读取wps嵌入式图片，自测

1. 代码

        主要工具类 需要引入依赖：

mvn install:install-file -Dfile=C:\Users\18151\Downloads\apache-xmlbeans-bin-5.2.1-20240522\apache-xmlbeans-5.2.1\bin\xmltypes.jar -DgroupId=cn.wps  -DartifactId=officeDocument  -Dversion=1.0 -Dpackaging=jar

        <dependency>
            <groupId>cn.wps</groupId>
            <artifactId>officeDocument</artifactId>
            <version>1.0</version>
        </dependency>

package com.chenkang.demo.util;

import cn.wps.officeDocument.x2017.etCustomData.CellImagesDocument;
import org.apache.poi.openxml4j.opc.OPCPackage;
import org.apache.poi.openxml4j.opc.PackagePart;
import org.apache.poi.openxml4j.opc.PackageRelationshipCollection;
import org.apache.poi.xssf.usermodel.XSSFPictureData;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;

/**
 * @author chenkang
 * @since 2024/6/20 21:34
 */
public class WpsImageUtil {

    /**
     *图片ID和 XSSFPictureData
     *
     * @param workbook workbook
     * @return List<Map < String, String>>
     * @throws Exception 异常
     */
    public static Map<String, XSSFPictureData> getPictureMap(XSSFWorkbook workbook) throws Exception {
        OPCPackage opcPackage = workbook.getPackage();
        Map<String,XSSFPictureData> result = new HashMap<>(4);
        List<PackagePart> partsByContentType = opcPackage.getPartsByContentType("application/vnd.wps-officedocument.cellimage+xml");
        if(partsByContentType.isEmpty()){
            return result;
        }
        PackagePart packagePart = partsByContentType.get(0);
        List<XSSFPictureData> allPictures = workbook.getAllPictures();
        Map<String, String> ridAndPidMap = getRidAndPidMap(packagePart);
        Map<String, String> ridAndPathMap = getRidAndPathMap(packagePart);
        ridAndPidMap.forEach((key, value) -> {
            String path = ridAndPathMap.get(value);
            Optional<XSSFPictureData> first = allPictures.stream().filter(pictureData -> pictureData.getPackagePart().getPartName().getName().equals(path)).findFirst();
            result.put(key,first.orElse(null));
        });
        return result;
    }


    /**
     *   //relationships 绑定了rid 和 图片 路径得地址
     * 获取rid和path的关系
     * @param packagePart cellImagePart
     * @return Map
     * @throws Exception 异常
     */
    public static Map<String, String> getRidAndPathMap(PackagePart packagePart) throws Exception {
        Map<String, String> ridAndPathMap = new HashMap<>(4);
        PackageRelationshipCollection relationships = packagePart.getRelationships();
        relationships.forEach(relationship -> ridAndPathMap.put(relationship.getId(), relationship.getTargetURI().getPath()));
        return ridAndPathMap;
    }


    /**
     * {ID_581F75328A584939A51CC44E17945975:rid1,ID_6702DEA2ADBA44AE8C65065BD13FF23D:rid1}
     * 行rid 以及图片id关系
     *
     * @param cellImagePart cellImagePart
     * @return Map
     * @throws Exception 异常
     */
    public static Map<String, String> getRidAndPidMap(PackagePart cellImagePart) throws Exception {
        CellImagesDocument cellImagesDocument = CellImagesDocument.Factory.parse(cellImagePart.getInputStream());
        CellImagesDocument.CellImages cellImages = cellImagesDocument.getCellImages();
        Map<String, String> result = new HashMap<>(4);
        cellImages.getCellImageList().forEach(cellImage -> {
            result.put(cellImage.getPic().getNvPicPr().getCNvPr().getName().getStringValue(), cellImage.getPic().getBlipFill().getBlip().getEmbed());
        });
        return result;
    }

}

package com.chenkang.demo.util;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class StringExtractor {
    
    public static String extractID(String input) {
        // 定义正则表达式模式
        String pattern = "ID_[A-Z0-9]+";
        Pattern compiledPattern = Pattern.compile(pattern);
        Matcher matcher = compiledPattern.matcher(input);
        // 查找匹配的字符串
        if (matcher.find()) {
            return matcher.group();
        } else {
            return null;
        }
    }
}

测试：

package com.chenkang.demo.learn;


import com.chenkang.demo.util.StringExtractor;
import com.chenkang.demo.util.WpsImageUtil;
import org.apache.poi.xssf.usermodel.XSSFPictureData;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

import java.io.File;
import java.util.Map;

/**
 * @author chenkang
 * @since 2024/6/6 14:09
 */
public class LockLearn {


    public static void main(String[] args) throws Exception {
        File file = new File("C:\\Users\\18151\\Desktop\\test.xlsx");
        XSSFWorkbook sheets = new XSSFWorkbook(file);
        XSSFSheet sheetAt = sheets.getSheetAt(0);
        String id=sheetAt.getRow(1).getCell(1).getStringCellValue();
        Map<String, XSSFPictureData> pictureMap = WpsImageUtil.getPictureMap(sheets);
        System.out.println(pictureMap);
        System.out.println(pictureMap.get(StringExtractor.extractID(id)));
    }




}

项目需要引入依赖， 可以手动打入maven仓库帮助解析wps图片信息

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具体思路详见文章java读取wps嵌入式图片思路-CSDN博客