poi 生成excel 图片

9年前
在使用poi导出报表的时候,通常会在excel中生成统计图片,下面通过一个简单的导出excel图片。
package com.xolt;  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 TestPOI {         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("C:/Documents and Settings/dingqi/Desktop/clip_image002.jpg"));             bufferImg1 = ImageIO.read(new File("C:/Documents and Settings/dingqi/Desktop/clip_image002.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("poi picT");          //HSSFRow row = sheet1.createRow(2);          HSSFPatriarch patriarch = sheet1.createDrawingPatriarch();          HSSFClientAnchor anchor = new HSSFClientAnchor(0,0,512,255,(short) 1,1,(short)10,20);          HSSFClientAnchor anchor1 = new HSSFClientAnchor(0,0,512,255,(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("c:/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();                        }                  }               }      }  }