应用POI向Excel中插入多张图片

使用POI向Excel中插入多张图片
POI3.0以上版本才支持向Excel中插入图片

http://apache.freelamp.com/jakarta/poi/release/src/poi-src-3.0-FINAL-20070503.zip

http://apache.freelamp.com/jakarta/poi/release/bin/poi-bin-3.0-FINAL-20070503.zip

新版的API可能支持的內容更丰富,不过文件也越来越大了.


Java代码

 
package com.emis.test;  
  
import java.io.FileOutputStream;  
import java.io.File;  
import java.io.ByteArrayOutputStream;  
import java.io.IOException;  
  
import java.awt.image.BufferedImage;  
import javax.imageio.*;  
  
import org.apache.poi.hssf.usermodel.HSSFWorkbook;  
import org.apache.poi.hssf.usermodel.HSSFSheet;  
import org.apache.poi.hssf.usermodel.HSSFPatriarch;  
import org.apache.poi.hssf.usermodel.HSSFClientAnchor;  
  
public class test {  
  
    public static void main(String[] args) {  
            FileOutputStream fileOut = null;  
            BufferedImage bufferImg =null;  
            BufferedImage bufferImg1 = null;  
            try{  
  
          //先把读进来的图片放到一个ByteArrayOutputStream中，以便产生ByteArray  
          ByteArrayOutputStream byteArrayOut = new ByteArrayOutputStream();  
          ByteArrayOutputStream byteArrayOut1 = new ByteArrayOutputStream();  
          bufferImg = ImageIO.read(new File("D:\\wwwroot\\smepos3.0\\images\\link01.jpg"));  
          bufferImg1 = ImageIO.read(new File("D:\\wwwroot\\smepos3.0\\images\\link02.jpg"));  
          ImageIO.write(bufferImg,"jpg",byteArrayOut);  
          ImageIO.write(bufferImg1,"jpg",byteArrayOut1);  
  
        //创建一个工作薄  
       HSSFWorkbook wb = new HSSFWorkbook();  
       HSSFSheet sheet1 = wb.createSheet("new sheet");  
       //HSSFRow row = sheet1.createRow(2);  
       HSSFPatriarch patriarch = sheet1.createDrawingPatriarch();  
       HSSFClientAnchor anchor = new HSSFClientAnchor(0,0,100,50,(short) 1,1,(short)10,20);  
       HSSFClientAnchor anchor1 = new HSSFClientAnchor(0,0,100,50,(short) 2,30,(short)10,60);  
       anchor1.setAnchorType(2);  
       //插入图片  
       patriarch.createPicture(anchor , wb.addPicture(byteArrayOut.toByteArray(),HSSFWorkbook.PICTURE_TYPE_JPEG));  
       patriarch.createPicture(anchor1 , wb.addPicture(byteArrayOut1.toByteArray(),HSSFWorkbook.PICTURE_TYPE_JPEG));  
  
           fileOut = new FileOutputStream("d:/workbook.xls");  
           //写入excel文件  
           wb.write(fileOut);  
           fileOut.close();  
  
            }catch(IOException io){  
                    io.printStackTrace();  
                    System.out.println("io erorr : "+ io.getMessage());  
            } finally  
            {  
               if (fileOut != null)  
               {  
  
                   try {  
                              fileOut.close();  
                         }  
                   catch (IOException e)  
                   {  
                            // TODO Auto-generated catch block  
                            e.printStackTrace();  
                     }  
               }  
            }  
    }  
}