jeesite4导出excle带图片（poi插件）

效果图：（涉及客户隐私打码）

以前觉得excle里面图片是浮动的，不是针对某一栏的，后来上网还真的有相应的插件实现，POI！

Apache POI是Apache软件基金会的开放源码函式库，POI提供API给Java程序对Microsoft Office格式档案读和写的功能。

我的工具类代码：

package com.jeesite.modules.py.utils;

import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.text.SimpleDateFormat;
import java.util.List;

import javax.imageio.ImageIO;
 
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFClientAnchor;
import org.apache.poi.hssf.usermodel.HSSFFont;
import org.apache.poi.hssf.usermodel.HSSFPatriarch;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.util.HSSFColor;
import org.apache.poi.ss.usermodel.CellStyle;
import org.apache.poi.ss.usermodel.IndexedColors;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
 
import com.jeesite.modules.py.entity.PyNarcotics;
import com.jeesite.common.config.Global;
import com.jeesite.common.io.FileUtils;

@Component
public class ExportUtils {

	@Value("${file.baseDir}")
	private static String dir;
	
	/**
     * 导出Excel（带图片）
     * @param sheetName sheet名称
     * @param title 标题
     * @param values 内容
     * @param wb HSSFWorkbook对象
     * @return
     */
    public static HSSFWorkbook getHSSFWorkbook(String sheetName,String []title,List<PyNarcotics> list, HSSFWorkbook wb){
//    	HttpServletRequest request = ((ServletRequestAttributes)RequestContextHolder.getRequestAttributes()).getRequest();
        // 第一步，创建一个HSSFWorkbook，对应一个Excel文件
        if(wb == null){
            wb = new HSSFWorkbook();
        }
 
        // 第二步，在workbook中添加一个sheet,对应Excel文件中的sheet
        HSSFSheet sheet = wb.createSheet(sheetName);
 
        // 第三步，在sheet中添加表头第0行,注意老版本poi对Excel的行数列数有限制
        HSSFRow row = sheet.createRow(0);
        row.setHeight((short) 500);
        // 第四步，创建单元格，并设置值表头 设置表头居中
        HSSFCellStyle style = wb.createCellStyle();
        style.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 创建一个居中格式
        style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
        style.setFillForegroundColor(IndexedColors.GREY_50_PERCENT.getIndex());
		style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        //声明列对象
        HSSFCell cell = null;
        
        //列宽
        int[] wids={4000,4000,7000,6000,6000,7000,8000,8000,10000,4000};
        
        //创建标题
        for(int i=0;i<title.length;i++){
        	sheet.setColumnWidth(i, wids[i]);
            cell = row.createCell(i);
            cell.setCellValue(title[i]);
            HSSFFont font = wb.createFont();
            font.setFontName("Arial");
            font.setColor(HSSFColor.WHITE.index);
            font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
            font.setFontHeightInPoints((short) 12);//设置字体大小
            style.setFont(font);
            cell.setCellStyle(style);
        }
        BufferedImage bufferImg = null;//图片
        try {
        	 //创建内容
        	HSSFCellStyle styleCon = wb.createCellStyle();
        	styleCon.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 创建一个居中格式
        	styleCon.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
//            for(int i=0;i<list.size();i++){
        	for(int j=list.size(),i=0;j>0;j--,i++){
                row = sheet.createRow(i + 1);
                row.setHeight((short) 1000);
                PyNarcotics pyNarcotics = list.get(j-1);
                //将内容按顺序赋给对应的列对象
                HSSFPatriarch patriarch = sheet.createDrawingPatriarch();
                String[] arr = null ;
                String imgStr = pyNarcotics.getPhoto();
                if(imgStr != null && !imgStr.equals("")){
                	arr = imgStr.split(",");          
                	String baseImage = Global.getConfig("file.baseDir")+arr[0];
                	//判断图片是否存在
                	if (new File(baseImage).exists()) {
                		ByteArrayOutputStream byteArrayOut = new ByteArrayOutputStream();
                		bufferImg = ImageIO.read(new File(baseImage));
                		ImageIO.write(bufferImg, FileUtils.getFileExtension(pyNarcotics.getPhoto()), byteArrayOut);
                		//图片一导出到单元格bi中
                		HSSFClientAnchor anchor1 = new HSSFClientAnchor(0, 0, 1023, 250,
                				(short) 1, i+1, (short) 1, i+1);                    	    
                		patriarch.createPicture(anchor1, wb.addPicture(byteArrayOut
                				.toByteArray(), HSSFWorkbook.PICTURE_TYPE_JPEG));
                	}
                }
                
              /*//导出多张照片的情况
                 	for(int j=0;j<arr.length;j++){
                	sheet.setColumnWidth(10+j-1, 4000);
                	String baseImage = Global.getConfig("file.baseDir")+arr[j];
                	//判断图片是否存在
                    if (new File(baseImage).exists()) {
                    	ByteArrayOutputStream byteArrayOut = new ByteArrayOutputStream();
                    	bufferImg = ImageIO.read(new File(baseImage));
                    	ImageIO.write(bufferImg, FileUtils.getFileExtension(pyNarcotics.getPhoto()), byteArrayOut);
                    	//图片一导出到单元格j11中
                    	HSSFClientAnchor anchor1 = new HSSFClientAnchor(0, 0, 1023, 250,
                    			(short) (10+j-1), i+1, (short) (10+j-1), i+1);                    	    
                    	patriarch.createPicture(anchor1, wb.addPicture(byteArrayOut
                    			.toByteArray(), HSSFWorkbook.PICTURE_TYPE_JPEG));
                    }
                }*/
                cell = row.createCell(0);cell.setCellValue(pyNarcotics.getName());
                cell.setCellStyle(styleCon);
                cell = row.createCell(2);cell.setCellValue(pyNarcotics.getIdCard());
                cell.setCellStyle(styleCon);
                cell = row.createCell(3);cell.setCellValue(pyNarcotics.getPhone());
                cell.setCellStyle(styleCon);
                cell = row.createCell(4);cell.setCellValue(pyNarcotics.getWeChat());
                cell.setCellStyle(styleCon);
                cell = row.createCell(5);cell.setCellValue(pyNarcotics.getCriminalCondition());
                cell.setCellStyle(styleCon);
                cell = row.createCell(6);cell.setCellValue(pyNarcotics.getCensusRegion());
                cell.setCellStyle(styleCon);
                cell = row.createCell(7);cell.setCellValue(pyNarcotics.getLocalPolice());
                cell.setCellStyle(styleCon);
                cell = row.createCell(8);cell.setCellValue(pyNarcotics.getPresentAddress());
                cell.setCellStyle(styleCon);
                SimpleDateFormat dFormat=new SimpleDateFormat("yyyy-MM-dd");
                cell = row.createCell(9);cell.setCellValue((pyNarcotics.getArrestDate()==null)?"":dFormat.format(pyNarcotics.getArrestDate()));
                cell.setCellStyle(styleCon);
            }
            return wb;
		} catch (Exception e) {
			System.err.println(e.getMessage());
		}
       return wb;
    }
}

 我的controller层调用代码：

    /**
	 * 导出人员数据带图片
	 */
	@RequiresPermissions("py:pyNarcotics:view")
	@RequestMapping(value = "exportNarData")
	public void exportNarData(PyNarcotics pyNarcotics, Boolean isAll, String ctrlPermi, HttpServletResponse response) {
		pyNarcotics.setStateNum(1);
		//设置人员默认按照xx时间来排序
		if(pyNarcotics.getOrderBy() == null){
			pyNarcotics.setOrderBy("control_time ASC, update_date DESC");
		}
		pyNarcotics.setPage(null);
		
		List<PyNarcotics> pyNarcoticsList= pyNarcoticsService.findList(pyNarcotics);
		// 生成Excel
		//excel标题
		String[] title={"姓名","照片","身份证","手机号","微信号","xx","xx","xx","现住址","时间"};
		//excel名称
		String fileName = "人员数据.xls";
		//sheet名 
		String sheetName = "人员信息";
		
		HSSFWorkbook wb = ExportUtils.getHSSFWorkbook(sheetName, title, pyNarcoticsList,null);
		//响应到客户端
		try {
			this.setResponseHeader(response, fileName);
			OutputStream os = response.getOutputStream();
			wb.write(os);
			os.flush();os.close();
		} catch (Exception e) {
			e.printStackTrace();
			System.err.println(e.getMessage());
		}
	}


//发送响应流方法
	public void setResponseHeader(HttpServletResponse response, String fileName) {
		try {
			try {
				fileName = new String(fileName.getBytes(),"ISO8859-1");
			} catch (UnsupportedEncodingException e) {
				e.printStackTrace();
			}
			response.setContentType("application/octet-stream;charset=ISO8859-1");
			response.setHeader("Content-Disposition", "attachment;filename="+ fileName);
			response.addHeader("Pargam", "no-cache");
			response.addHeader("Cache-Control", "no-cache");
		} catch (Exception ex) {
			ex.printStackTrace();
		}
	}

我的前端页面（list）代码： 

<!-- html里面的按钮显示 -->
<a href="#" class="btn btn-default" id="btnExportNew" title="${text('导出')}"><i class="glyphicon glyphicon-export"></i> ${text('导出')}</a>




//js层的代码（导入按钮根据ID绑定点击事件）
//"#btnExport"导出按钮的id  #searchForm from表单的id
 $('#btnExportNew').click(function(){
	js.ajaxSubmitForm($('#searchForm'), {
		url:'${ctx}/py/pyNarcotics/exportNarData',
		downloadFile:true
	});
}); 

其中查阅了很多博客，POI功能挺强大的，基本能实现对office的各种操作，字体样式你想要多么花里胡哨网上都有相应的案例和文档，感谢活在2019，热心网民是真的贴心窝，主要参考的博客我没有记录，但是有一个记了下来：https://blog.csdn.net/qq_40100817/article/details/82799036

学无止境！加油，我不认输！