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Java中Easyexcel 实现批量插入图片功能

java Easyexcel插入图片Easyexcel批量插入图片 2022-11-13 06:11:29 737人浏览 泡泡鱼

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摘要

目录1 Maven依赖2 PictureModel3CustomPictureHandler4 调试代码5 调试结果注:各位今天给大家分享Easyexcel 实现批量插入图片的问题,

各位今天给大家分享Easyexcel 实现批量插入图片的问题,代码如下所示:

1 Maven依赖

 <!--hutool工具包-->
        <dependency>
            <groupId>cn.hutool</groupId>
            <artifactId>hutool-all</artifactId>
            <version>5.5.1</version>
        </dependency>
        <!--easyexcel文档处理工具-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>easyexcel</artifactId>
            <version>2.2.8</version>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>

2 PictureModel

图片信息。

package com.xudongbase.easyexcel.model;
import com.xudongbase.easyexcel.model.builder.PictureModelBuilder;
import com.xudongbase.easyexcel.model.common.SheetRangeModel;
import lombok.Getter;

@Getter
public class PictureModel extends SheetRangeModel {
    
    private byte[] pictureBytes;
     * 图片类型
    private Integer pictureType;
    public PictureModel(PictureModelBuilder builder) {
        this.sheetName = builder.getSheetName();
        this.startRowIndex = builder.getStartRowIndex();
        this.endRowIndex = builder.getEndRowIndex();
        this.startColumnIndex = builder.getStartColumnIndex();
        this.endColumnIndex = builder.getEndColumnIndex();
        this.pictureBytes = builder.getPictureBytes();
        this.pictureType = builder.getPictureType();
    }
     * 生成图片信息
     *
     * @param sheetName        sheet页名称
     * @param startRowIndex    开始行号
     * @param endRowIndex      结束行号
     * @param startColumnIndex 开始列号
     * @param endColumnIndex   结束列号
     * @param pictureBytes     图片数据
     * @return
    public static PictureModel createPictureModel(String sheetName, int startRowIndex, int endRowIndex, int startColumnIndex, int endColumnIndex
            , byte[] pictureBytes) {
        return createPictureModel(sheetName, startRowIndex, endRowIndex, startColumnIndex, endColumnIndex, pictureBytes, null);
     * @param pictureType      图片类型
            , byte[] pictureBytes, Integer pictureType) {
        return new PictureModelBuilder(sheetName, startRowIndex, endRowIndex, startColumnIndex, endColumnIndex, pictureBytes)
                //图片类型
                .pictureType(pictureType)
                .build();
}

3CustomPictureHandler

自定义图片处理器。

package com.xudongbase.easyexcel.handler;
import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.util.StrUtil;
import com.alibaba.excel.write.handler.SheetWriteHandler;
import com.alibaba.excel.write.metadata.holder.WriteSheetHolder;
import com.alibaba.excel.write.metadata.holder.WriteWorkbookHolder;
import com.xudongbase.common.poi.util.POIExcelUtil;
import com.xudongbase.easyexcel.model.PictureModel;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;

public class CustomPictureHandler implements SheetWriteHandler {
    
    private List<String> sheetNameList;
     * 图片信息
    private List<PictureModel> pictureList = new ArrayList<>();
    public CustomPictureHandler(List<PictureModel> pictureList) {
        if (CollUtil.isEmpty(pictureList)) {
            return;
        }
        this.pictureList = pictureList.stream().filter(x ->
                StrUtil.isNotBlank(x.getSheetName()) && x.getPictureBytes() != null && x.getPictureBytes().length > 0)
                .collect(Collectors.toList());
        sheetNameList = this.pictureList.stream().map(x -> x.getSheetName()).distinct().collect(Collectors.toList());
    }
    @Override
    public void beforeSheetCreate(WriteWorkbookHolder writeWorkbookHolder, WriteSheetHolder writeSheetHolder) {
     * sheet页创建之后调用
     *
     * @param writeWorkbookHolder
     * @param writeSheetHolder
    public void afterSheetCreate(WriteWorkbookHolder writeWorkbookHolder, WriteSheetHolder writeSheetHolder) {
        Sheet sheet = writeSheetHolder.getSheet();
        //不需要添加图片,或者当前sheet页不需要添加图片
        if (CollUtil.isEmpty(pictureList) || sheetNameList.contains(sheet.getSheetName()) == false) {
        //获取当前sheet的图片
        List<PictureModel> sheetPictureList = pictureList.stream().filter(x ->
                StrUtil.equals(x.getSheetName(), sheet.getSheetName())
        ).collect(Collectors.toList());
        //当前sheet页不需要图片
        if (CollUtil.isEmpty(sheetPictureList)) {
        for (PictureModel pictureModel : sheetPictureList) {
            //图片数据
            byte[] pictureBytes = pictureModel.getPictureBytes();
            //插入图片
            POIExcelUtil.insertImg(writeWorkbookHolder.getWorkbook(), sheet, pictureBytes, pictureModel.getStartRowIndex()
                    , pictureModel.getEndRowIndex(), pictureModel.getStartColumnIndex(), pictureModel.getEndColumnIndex()
                    , (pictureModel.getPictureType() == null ? Workbook.PICTURE_TYPE_JPEG : pictureModel.getPictureType()));
        //删除图片信息
        pictureList.removeAll(sheetPictureList);
        sheetNameList = pictureList.stream().map(x -> x.getSheetName()).distinct().collect(Collectors.toList());
}

4 调试代码


    @Test
    public void testPicture() {
        try {
            File file = new File("D:/easyexcel/testPicture.xlsx");
            FileUtil.createNewFile(file);
            //生成表格数据
            List<List<Object>> dataList = new ArrayList<>();
            dataList.add(new ArrayList<>(Arrays.asList(new Object[]{"表头11", "表头2", "表头3", "表头4"})));
            dataList.add(new ArrayList<>(Arrays.asList(new Object[]{"表头17777777777", "表头2", "表头3", "表头4444"})));
            dataList.add(new ArrayList<>(Arrays.asList(new Object[]{"表头31", "表头2", "表头3", "表头4"})));
            dataList.add(new ArrayList<>(Arrays.asList(new Object[]{11.111, 11.111, "11.111", "表头4"})));
            //导出文件
            List<PictureModel> pictureModelList = new ArrayList<>();
            String imgUrl = "https://profile.csdnimg.cn/9/5/B/1_qq_38974638";
            byte[] bytes = HttpUtil.downloadBytes(imgUrl);
            String sheetName="模板";
            pictureModelList.add(PictureModel.createPictureModel(sheetName,0,10,0,4,bytes));
            pictureModelList.add(PictureModel.createPictureModel(sheetName,11,22,0,4,bytes));
            FileOutputStream fileOutputStream = new FileOutputStream(file);
            ExcelWriter excelWriter = EasyExcel.write(fileOutputStream)
                    .inMemory(Boolean.TRUE).reGISterWriteHandler(new CustomPictureHandler(pictureModelList)).build();
            WriteSheet writeSheet = EasyExcel.writerSheet(sheetName).build();
            excelWriter.write(dataList, writeSheet);
            //千万别忘记finish 会帮忙关闭流
            excelWriter.finish();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

5 调试结果

注:

1、 注册自定义处理器之前必须调用inMemory(Boolean.TRUE)方法。

2、觉得这篇博客写的不错的可以前往gitee点个Star,源码请查看Gitee的xudongbase项目easyexcel分支。

xudongbase: 主要是项目中可以用到的共通方法,现有easyexcel分支在持续更新中。欢迎大家Star和提交Issues。easyexcel分支:批量设置样式,批量添加批注,批量合并单元格,设置冻结行和列,设置行高列宽,隐藏行和列,绑定下拉框数据,设置水印 - Gitee.com

补充:下面给大家分享基于python语言写的日常小工具向excel中批量添加图片和图片名称

需求:现有一个200张图片的文件夹,向 excel 中 A列,写入图片的名称,向ecxel 中的 E 列插入对应的图片。

from openpyxl import  load_workbook
from openpyxl.drawing.image import Image
import os
import re
def insert_img_to_excel(filname, by_col,to_col,img_folder):
 
    '''
    filename : 表格文件路径
    by_col : 依靠哪一列
    to_col : 插入到哪一列
    img_folder : 图片路径
    wb = load_workbook(filname)
    ws = wb.active
    # 获取图片名称
    img_fnn = os.listdir(str(img_folder))
    index = 1
     # 将图片名称写入到 excel 中 A 列
    for img_fp in img_fnn:
        s= img_fp.replace(".jpg",'')
        index += 1
        i = 'A' + str(index)
        ws[i].value = s
        wb.save(filname)
    wb.close()
    for ind , c in enumerate(ws[by_col],start=1):
        # 图片文件的绝对路径
        img_lujin = os.path.join(img_folder,c.value + '.jpg')
        try:
            # 设置图片大小
            img_size = Image(img_lujin)
            newsize = (150, 200)
            img_size.width, img_size.height = newsize
            # 将图片写入 excel
            ws.add_image(
                img_size,
                anchor=to_col + str(ind)
            )
        except:
            print(c.value,'匹配不到图片')
    wb.save(filname)
if __name__ == '__main__':
    insert_img_to_excel(
        filname = r'C:\Users\Administrator\Desktop\act_test\mod.xlsx',
        by_col = 'A',
        to_col = 'E',
        img_folder=r"C:\Users\Administrator\Desktop\act_test\Act_img"
    )

到此这篇关于Easyexcel 实现批量插入图片的文章就介绍到这了,更多相关Easyexcel插入图片内容请搜索编程网以前的文章或继续浏览下面的相关文章希望大家以后多多支持编程网!

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