java : poi 3.10 实现向Excel中插入图片

import java.io.*;
import java.util.*;

import org.apache.commons.io.IOUtils;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

public class Excel_imageTest {
public static void main(String[] args) {
try {
//create a new workbook
Workbook wb = new XSSFWorkbook(); //or new HSSFWorkbook();

//add picture data to this workbook.
InputStream is = new FileInputStream("66001.png");
byte[] bytes = IOUtils.toByteArray(is);
int pictureIdx = wb.addPicture(bytes, Workbook.PICTURE_TYPE_PNG);
is.close();

CreationHelper helper = wb.getCreationHelper();

//create sheet
Sheet sheet = wb.createSheet("Sheet1");

// Create the drawing patriarch.  This is the top level container for all shapes.
Drawing drawing = sheet.createDrawingPatriarch();

//add a picture shape
ClientAnchor anchor = helper.createClientAnchor();
//set top-left corner of the picture,
//subsequent call of Picture#resize() will operate relative to it
anchor.setCol1(3);
anchor.setRow1(2);
Picture pict = drawing.createPicture(anchor, pictureIdx);

//auto-size picture relative to its top-left corner
pict.resize();

//save workbook
String file = "66001.xls";
if(wb instanceof XSSFWorkbook) file += "x";
FileOutputStream fileOut = new FileOutputStream(file);
wb.write(fileOut);
fileOut.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}