java读取excel文件的内容（包括图片）
直接上代码
package com.fan.li.utils;
import cn.hutool.core.codec.Base64Encoder;
import com.github.pagehelper.util.StringUtil;
import org.apache.commons.lang3.StringUtils;
import org.apache.poi.EncryptedDocumentException;
import org.apache.poi.POIXMLDocumentPart;
import org.apache.poi.hssf.usermodel.*;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.*;
import org.openxmlformats.schemas.drawingml.x2006.spreadsheetDrawing.CTMarker;
import org.springframework.mock.web.MockMultipartFile;
import org.springframework.util.CollectionUtils;
import org.springframework.web.multipart.MultipartFile;
import java.awt.*;
import java.io.*;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
/**
* @ClassName PicturesVo
* @Description TODO
* @Author fan
* @Date 2023/5/22 9:33
* @Version 1.0
*/
public class ReadXlsxPicturesUtil {
public static File multipartFileToFile(MultipartFile file) throws Exception {
File toFile = null;
if (file.equals("") || file.getSize() <= 0) {
file = null;
} else {
InputStream ins = null;
ins = file.getInputStream();
toFile = new File(file.getOriginalFilename());
inputStreamToFile(ins, toFile);
ins.close();
}
return toFile;
}
//获取流文件
private static void inputStreamToFile(InputStream ins, File file) {
try {
OutputStream os = new FileOutputStream(file);
int bytesRead = 0;
byte[] buffer = new byte[8192];
while ((bytesRead = ins.read(buffer, 0, 8192)) != -1) {
os.write(buffer, 0, bytesRead);
}
os.close();
ins.close();
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 删除本地临时文件
* @param file
*/
public static void deleteTempFile(File file) {
if (file != null) {
File del = new File(file.toURI());
del.delete();
}
}
/**
* @Description:获取excel表中的图片
* @throws IOException
* @throws EncryptedDocumentException
* @param file 文件输入流
* @param sheetNum Excel表中的sheet编号
* @return: java.util.Map
* @Author: fan
* @Date: 2023/5/22 11:05
*/
public static Map getPictureFromExcel(File file, int sheetNum) throws EncryptedDocumentException, IOException {
//获取图片PictureData集合
String fileName = file.getName();
Workbook workbook = null;
if (StringUtil.isEmpty(fileName)) {
return null;
}
FileInputStream fileInputStream = new FileInputStream(file);
if (fileName.endsWith("xls")) {
//2003
workbook = new HSSFWorkbook(fileInputStream);
HSSFSheet sheet = (HSSFSheet) workbook.getSheetAt(sheetNum - 1);
Map pictures = getPictures(sheet);
return pictures;
} else if (fileName.endsWith("xlsx")) {
//2007
workbook = new XSSFWorkbook(fileInputStream);
XSSFSheet sheet = (XSSFSheet) workbook.getSheetAt(sheetNum - 1);
Map pictures = getPictures(sheet);
return pictures;
}
return new HashMap();
}
/**
* @Description:获取excel表中的图片
* @throws IOException
* @throws EncryptedDocumentException
* @param multipartFile 文件输入流
* @param sheetNum Excel表中的sheet编号
* @return: java.util.Map
* @Author: fan
* @Date: 2023/5/22 11:05
*/
public static Map getPictureFromExcel(MultipartFile multipartFile, int sheetNum) throws EncryptedDocumentException, IOException {
//获取图片PictureData集合
Workbook workbook = null;
if (multipartFile != null) {
workbook = new XSSFWorkbook(multipartFile.getInputStream());
XSSFSheet sheet = (XSSFSheet) workbook.getSheetAt(sheetNum - 1);
Map pictures = getPictures(sheet);
return pictures;
}
return new HashMap();
}
/**
* 获取图片和位置 (xls版)
* @param sheet
* @return
* @throws IOException
*/
public static Map getPictures (HSSFSheet sheet) throws IOException {
Map map = new HashMap();
List list = sheet.getDrawingPatriarch().getChildren();
for (HSSFShape shape : list) {
if (shape instanceof HSSFPicture) {
HSSFPicture picture = (HSSFPicture) shape;
HSSFClientAnchor cAnchor = picture.getClientAnchor();
PictureData pdata = picture.getPictureData();
String key = cAnchor.getRow1() + "-" + cAnchor.getCol1(); // 行号-列号
map.put(key, pdata);
}
}
return map;
}
/**
* 获取图片和位置 (xlsx版)
* @param sheet
* @return
* @throws IOException
*/
public static Map getPictures (XSSFSheet sheet) throws IOException {
Map map = new HashMap();
List list = sheet.getRelations();
for (POIXMLDocumentPart part : list) {
if (part instanceof XSSFDrawing) {
XSSFDrawing drawing = (XSSFDrawing) part;
List shapes = drawing.getShapes();
for (XSSFShape shape : shapes) {
/*XSSFPicture picture = (XSSFPicture) shape;
XSSFClientAnchor anchor = picture.getPreferredSize();
CTMarker marker = anchor.getFrom();
String key = marker.getRow() + "-" + marker.getCol();
map.put(key, picture.getPictureData());*/
XSSFPicture picture = (XSSFPicture) shape;
//解决图片空指针报错问题 fan 2023-05-30
XSSFClientAnchor anchor = (XSSFClientAnchor) shape.getAnchor();
// XSSFClientAnchor anchor = pic.getPreferredSize();
CTMarker ctMarker = anchor.getFrom();
//解决用户头像格式错误 fan 2023-05-30
String picIndex = ctMarker.getRow() + "-" + anchor.getCol1();
map.put(picIndex, picture.getPictureData());
}
}
}
return map;
}
private static SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
public static String doZero(String value) {
String val = value;
if (value.indexOf(".") != -1) {
val = value.replaceAll("0+?$", "");
val = val.replaceAll("[.]$", "");
}
return val;
}
/**
* @desc:获取单元格内容
* @param cell
* @return
* 异常时返回null
*/
public static String getCellValueText(Cell cell) {
try {
String text = "";
if (cell == null) {
return text;
} else {
switch (cell.getCellType()) {
case Cell.CELL_TYPE_NUMERIC://0
if (DateUtil.isCellDateFormatted(cell)) {// 判断是否为日期类型
//SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
return sdf.format(DateUtil.getJavaDate(cell.getNumericCellValue()));
}
Double value = cell.getNumericCellValue();
BigDecimal bd = new BigDecimal(value + "");
text = bd.toPlainString();
text = doZero(text);
break;
case Cell.CELL_TYPE_STRING://1
text = cell.getStringCellValue().trim();
case Cell.CELL_TYPE_FORMULA://2
try {
text = String.valueOf(cell.getNumericCellValue());
} catch (IllegalStateException e) {
text = String.valueOf(cell.getRichStringCellValue());
}
break;
}
return text;
}
} catch (Exception ex) {
ex.printStackTrace();
return null;
}
}
public static List> getPictureList(MultipartFile multipartFile){
List> list = new ArrayList<>();
try {
//获取图片数据
Map map = getPictureFromExcel(multipartFile, 1);
Workbook workbook = WorkbookFactory.create(multipartFile.getInputStream());
Sheet sheet = workbook.getSheetAt(0);
int lastRow = sheet.getLastRowNum();
int lastCell = sheet.getRow(0).getLastCellNum();
for (int i = 1; i <= lastRow; i++) {
Row row = sheet.getRow(i);
if (row == null) {
continue;
}
Map param = new HashMap<>();
for (int j = 0; j < lastCell; j++) {
Cell cell = row.getCell(j);
String value = getCellValueText(cell);
if (value != null) {
value = value.trim();
}
if (j == 0) {
param.put("用户名", value);
}
if (j == 1) {
param.put("备注", value);
}
if (j == 2) {
param.put("类型", value);
}
if (j == 3) {
//根据图片行列位置获取图片
String key = "" + i + "-" + j;
PictureData picData = map.get(key);
if (picData != null) {
byte[] data = picData.getData();
if (data.length > 0) {
String base64 = Base64Encoder.encode(data);
param.put("人脸图", base64);
/*String extension = picData.suggestFileExtension();
FileOutputStream out = new FileOutputStream("C:\\my-word\\picture\\" + key + "_picture." + extension);
out.write(data);
out.close();*/
}
}
}
}
if (!CollectionUtils.isEmpty(param)) {
list.add(param);
}
}
} catch (Exception e){
e.printStackTrace();
}
return list;
}
public static List> getPictureList(String filePath){
List> list = new ArrayList<>();
try {
File file = new File(filePath);
//获取图片数据
Map map = getPictureFromExcel(file, 1);
FileInputStream fileInputStream = new FileInputStream(filePath);
MultipartFile multipartFile = new MockMultipartFile("test", fileInputStream);
Workbook workbook = WorkbookFactory.create(multipartFile.getInputStream());
Sheet sheet = workbook.getSheetAt(0);
int lastRow = sheet.getLastRowNum();
int lastCell = sheet.getRow(0).getLastCellNum();
System.out.println(lastRow + ", " + lastCell);
for (int i = 1; i <= lastRow; i++) {
Row row = sheet.getRow(i);
if (row == null) {
continue;
}
Map param = new HashMap<>();
for (int j = 0; j < lastCell; j++) {
Cell cell = row.getCell(j);
String value = getCellValueText(cell);
if (value != null) {
value = value.trim();
}
if (j == 0) {
param.put("用户名", value);
}
if (j == 1) {
param.put("备注", value);
}
if (j == 2) {
param.put("类型", value);
}
if (j == 3) {
//根据图片行列位置获取图片
String key = "" + i + "-" + j;
PictureData picData = map.get(key);
if (picData != null) {
byte[] data = picData.getData();
if (data.length > 0) {
String base64 = Base64Encoder.encode(data);
param.put("人脸图", base64);
/*String extension = picData.suggestFileExtension();
FileOutputStream out = new FileOutputStream("C:\\my-word\\picture\\" + key + "_picture." + extension);
out.write(data);
out.close();*/
}
}
}
}
if (!CollectionUtils.isEmpty(param)) {
list.add(param);
}
}
} catch (Exception e){
e.printStackTrace();
}
return list;
}
public static void main(String [] args) throws Exception {
String filePath = "C:\\my-word\\副本人脸批量上传辅助工具(1)(2).xlsm";
//String filePath = "C:\\my-word\\工作簿1.xlsx";
//File file = new File(filePath);
//获取图片数据
//Map map1 = getPictureFromExcel(file, 1);
FileInputStream fileInputStream = new FileInputStream(filePath);
MultipartFile multipartFile = new MockMultipartFile("test", fileInputStream);
//String originalFilename = multipartFile.getOriginalFilename();
//System.out.println("文件名-->" + originalFilename);
List> pictureList =
getPictureList(multipartFile).stream().filter(m ->
(!StringUtil.isEmpty(m.get("用户名").toString())
&& !StringUtil.isEmpty(m.get("备注").toString())
&& !StringUtil.isEmpty(m.get("类型").toString())
&& !StringUtil.isEmpty(m.get("人脸图").toString())
)
).collect(Collectors.toList());;
//getPictureList("C:\\my-word\\人脸.xlsx");
System.out.println(pictureList.size());
for(Map map : pictureList) {
//log.info("{}", map);
// 读取参数
String userName = map.get("用户名") == null ? "" : map.get("用户名").toString();
String remark = map.get("备注") == null ? "" : map.get("备注").toString();
String type = map.get("类型") == null ? "" : map.get("类型").toString();
String fileStr = map.get("人脸图") == null ? "" : map.get("人脸图").toString();
System.out.println("fileStr-->" + fileStr);
}
}
}