Java向Excel中插入图片

1. import java.io.FileOutputStream;
2. import java.io.File;
3. import java.io.ByteArrayOutputStream;
4. import java.io.IOException;
5. import java.awt.image.BufferedImage;
6. import javax.imageio.*;
7. import org.apache.poi.hssf.usermodel.HSSFWorkbook;
8. import org.apache.poi.hssf.usermodel.HSSFSheet;
9. import org.apache.poi.hssf.usermodel.HSSFPatriarch;
10. import org.apache.poi.hssf.usermodel.HSSFClientAnchor;;
11. public class TestPOI {
12. public static void main(String[] args) {
13. FileOutputStream fileOut = null;
14. BufferedImage bufferImg =null;
15. BufferedImage bufferImg1 = null;
16. try{
17. //先把读进来的图片放到一个ByteArrayOutputStream中，以便产生ByteArray
18. ByteArrayOutputStream byteArrayOut = new ByteArrayOutputStream();
19. ByteArrayOutputStream byteArrayOut1 = new ByteArrayOutputStream();
20. bufferImg = ImageIO.read(new File("d:/PieChart.jpg"));
21. bufferImg1 = ImageIO.read(new File("d:/fruitBarChart.jpg"));
22. ImageIO.write(bufferImg,"jpg",byteArrayOut);
23. ImageIO.write(bufferImg1,"jpg",byteArrayOut1);
24. //创建一个工作薄
25. HSSFWorkbook wb = new HSSFWorkbook();
26. HSSFSheet sheet1 = wb.createSheet("new sheet");
27. //HSSFRow row = sheet1.createRow(2);
28. HSSFPatriarch patriarch = sheet1.createDrawingPatriarch();
29. HSSFClientAnchor anchor = new HSSFClientAnchor(0,0,512,255,(short) 1,1,(short)10,20);
30. HSSFClientAnchor anchor1 = new HSSFClientAnchor(0,0,512,255,(short) 2,30,(short)10,60);
31. anchor1.setAnchorType(2);
32. //插入图片
33. patriarch.createPicture(anchor , wb.addPicture(byteArrayOut.toByteArray(),HSSFWorkbook.PICTURE_TYPE_JPEG));
34. patriarch.createPicture(anchor1 , wb.addPicture(byteArrayOut1.toByteArray(),HSSFWorkbook.PICTURE_TYPE_JPEG));
35. fileOut = new FileOutputStream("d:/workbook.xls");
36. //写入excel文件
37. wb.write(fileOut);
38. fileOut.close();
39. }catch(IOException io){
40. io.printStackTrace();
41. System.out.println("io erorr : "+ io.getMessage());
42. } finally
43. {
44. if (fileOut != null)
45. {
46. try {
47. fileOut.close();
48. }
49. catch (IOException e)
50. {
51. // TODO Auto-generated catch block
52. e.printStackTrace();
53. }
54. }
55. }
56. }
57. }