【JAVA】easyexcel 导出excel文件带多个图片

最终效果

pom版本

 <developer>    <groupId>com.alibaba</groupId><artifactId>easyexcel</artifactId><version>3.0.5</version></developer>

实现代码

package com.alibaba.easyexcel.test.demo.write;import com.alibaba.easyexcel.test.util.TestFileUtil;
import com.alibaba.excel.EasyExcel;
import com.alibaba.excel.metadata.data.ClientAnchorData;
import com.alibaba.excel.metadata.data.ImageData;
import com.alibaba.excel.metadata.data.WriteCellData;
import com.alibaba.excel.util.FileUtils;
import com.alibaba.excel.write.style.column.AutoColumnWidthStyleStrategy;
import org.apache.commons.collections4.CollectionUtils;
import org.junit.Test;import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.atomic.AtomicReference;/*** 图片导出** @author dqh* @date 2022/11/3 15:20*/
public class ImageExportTest {/*** 图片导出* <p>* 1. 创建excel对应的实体对象 参照{@link ImageDemoData}* <p>* 2. 直接写即可*/@Testpublic void imageWrite() throws Exception {//文件最后生成的路径String fileName = TestFileUtil.getPath() + "imageWrite.xlsx";System.out.println(fileName);//测试用的图片路径String imagePath = TestFileUtil.getPath() + "converter" + File.separator + "img.jpg";String imagePath2 = TestFileUtil.getPath() + "converter" + File.separator + "img2.jpeg";//数据列表DemoList<ImageDemoData> demoDataList = new ArrayList<>();//图片路径List<String> path1 = new ArrayList<>();path1.add(imagePath);List<String> path2 = new ArrayList<>();path2.add(imagePath);path2.add(imagePath2);List<String> path3 = new ArrayList<>();path3.add(imagePath);path3.add(imagePath);path3.add(imagePath2);List<String> path4 = new ArrayList<>();path4.add(imagePath);path4.add(imagePath2);path4.add(imagePath);path4.add(imagePath2);demoDataList.add(new ImageDemoData("王离", path1));demoDataList.add(new ImageDemoData("杨开", path2));demoDataList.add(new ImageDemoData("欧阳微微", path3));demoDataList.add(new ImageDemoData("上官婉儿", path4));genImageExcel(demoDataList, fileName);}/*** 生成有图片的excel** @param demoDataList 数据列表* @param fileName     生成文件路径*/private void genImageExcel(List<ImageDemoData> demoDataList, String fileName) {if (CollectionUtils.isEmpty(demoDataList)) {return;}//图片列最大图片数AtomicReference<Integer> maxImageSize = new AtomicReference<>(0);demoDataList.forEach(item -> {if (CollectionUtils.isNotEmpty(item.getImagePathList()) && item.getImagePathList().size() > maxImageSize.get()) {maxImageSize.set(item.getImagePathList().size());}});//设置列长度所用类AutoColumnWidthStyleStrategy longWidth = new AutoColumnWidthStyleStrategy();demoDataList.forEach(item -> {WriteCellData<Void> writeCellData = new WriteCellData<>();if (CollectionUtils.isNotEmpty(item.getImagePathList())) {//每张图片间距Integer splitWidth = 2;//每张图片的长度Integer imageWidth = 80;//图片列的最大长度Integer sumWidth = maxImageSize.get() * (imageWidth + splitWidth);List<ImageData> imageDataList = new ArrayList<>();List<String> imagePathList = item.getImagePathList();for (int i = 1; i <= imagePathList.size(); i++) {String path = imagePathList.get(i - 1);Integer left = imageWidth * (i - 1) + i * splitWidth;Integer right = sumWidth - imageWidth - left;ImageData imageData = new ImageData();try {imageData.setImage(FileUtils.readFileToByteArray(new File(path)));} catch (IOException e) {e.printStackTrace();}imageData.setImageType(ImageData.ImageType.PICTURE_TYPE_PNG);//距离单元格顶部距离imageData.setTop(1);//距离单元格底部距离imageData.setBottom(1);//距离单元格左边距离imageData.setLeft(left);//距离单元格右边距离imageData.setRight(right);imageData.setAnchorType(ClientAnchorData.AnchorType.DONT_MOVE_DO_RESIZE);imageDataList.add(imageData);}writeCellData.setImageDataList(imageDataList);Map<String, Integer> zdyColumnWidth = new HashMap<>();//图片列名称，对应导出对象的列名称，图片列长度zdyColumnWidth.put("上传图片", sumWidth / 6);longWidth.setZdyColumnWidth(zdyColumnWidth);}item.setWriteCellDataFile(writeCellData);});//写入数据EasyExcel.write(fileName, ImageDemoData.class).registerWriteHandler(longWidth).sheet().doWrite(demoDataList);}}

package com.alibaba.easyexcel.test.demo.write;import com.alibaba.excel.annotation.ExcelIgnore;
import com.alibaba.excel.annotation.ExcelProperty;
import com.alibaba.excel.annotation.write.style.ContentRowHeight;
import com.alibaba.excel.metadata.data.WriteCellData;
import lombok.EqualsAndHashCode;
import lombok.Getter;
import lombok.Setter;import java.util.List;/*** 图片导出类** @author Jiaju Zhuang*/
@Getter
@Setter
@EqualsAndHashCode
@ContentRowHeight(40)
public class ImageDemoData {/*** 根据文件导出 并设置导出的位置。** @since 3.0.0-beta1*/@ExcelProperty(value = "用户名称")private String test;/*** 图片路径*/@ExcelIgnoreprivate List<String> imagePathList;/*** 图片列*/@ExcelProperty(value = "上传图片")private WriteCellData<Void> writeCellDataFile;public ImageDemoData() {}public ImageDemoData(String test, List<String> imagePathList) {this.test = test;this.imagePathList = imagePathList;}public ImageDemoData(List<String> imagePathList) {this.imagePathList = imagePathList;}
}

package com.alibaba.excel.write.style.column;import com.alibaba.excel.enums.CellDataTypeEnum;
import com.alibaba.excel.metadata.Head;
import com.alibaba.excel.metadata.data.WriteCellData;
import com.alibaba.excel.util.MapUtils;
import com.alibaba.excel.write.metadata.holder.WriteSheetHolder;
import org.apache.commons.collections4.CollectionUtils;
import org.apache.poi.ss.usermodel.Cell;import java.util.HashMap;
import java.util.List;
import java.util.Map;/*** 自动列宽*/
public class AutoColumnWidthStyleStrategy extends AbstractColumnWidthStyleStrategy {private static final int MAX_COLUMN_WIDTH = 255;//自定义列的列宽private Map<String, Integer> zdyColumnWidth = MapUtils.newHashMapWithExpectedSize(2);private final Map<Integer, Map<Integer, Integer>> cache = MapUtils.newHashMapWithExpectedSize(8);@Overrideprotected void setColumnWidth(WriteSheetHolder writeSheetHolder, List<WriteCellData<?>> cellDataList, Cell cell,Head head,Integer relativeRowIndex, Boolean isHead) {boolean needSetWidth = isHead || !CollectionUtils.isEmpty(cellDataList);if (!needSetWidth) {return;}if (zdyColumnWidth.containsKey(cell.toString())) {writeSheetHolder.getSheet().setColumnWidth(cell.getColumnIndex(), zdyColumnWidth.get(cell.toString()) * 256);return;}Map<Integer, Integer> maxColumnWidthMap = cache.get(writeSheetHolder.getSheetNo());if (maxColumnWidthMap == null) {maxColumnWidthMap = new HashMap<Integer, Integer>(16);cache.put(writeSheetHolder.getSheetNo(), maxColumnWidthMap);}Integer columnWidth = dataLength(cellDataList, cell, isHead);if (columnWidth < 0) {return;}if (columnWidth > MAX_COLUMN_WIDTH) {columnWidth = MAX_COLUMN_WIDTH;}Integer maxColumnWidth = maxColumnWidthMap.get(cell.getColumnIndex());if (maxColumnWidth == null || columnWidth > maxColumnWidth) {maxColumnWidthMap.put(cell.getColumnIndex(), columnWidth);writeSheetHolder.getSheet().setColumnWidth(cell.getColumnIndex(), columnWidth * 256);}}private Integer dataLength(List<WriteCellData<?>> cellDataList, Cell cell, Boolean isHead) {if (isHead) {return cell.getStringCellValue().getBytes().length;}WriteCellData<?> cellData = cellDataList.get(0);CellDataTypeEnum type = cellData.getType();if (type == null) {return -1;}switch (type) {case STRING:return cellData.getStringValue().getBytes().length;case BOOLEAN:return cellData.getBooleanValue().toString().getBytes().length;case NUMBER:return cellData.getNumberValue().toString().getBytes().length;default:return -1;}}public void setZdyColumnWidth(Map<String, Integer> zdyColumnWidth) {this.zdyColumnWidth = zdyColumnWidth;}
}

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【JAVA】easyexcel 导出excel文件带多个图片

最终效果

pom版本

实现代码

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