java利用POI向Excel(xls)寫入圖片，並對圖片引用超連接

1.maven依賴

<dependency>
	<groupId>org.apache.poi</groupId>
	<artifactId>poi</artifactId>
	<version>3.9</version>
</dependency>

2.代碼示例

import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;

import javax.imageio.ImageIO;

import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFClientAnchor;
import org.apache.poi.hssf.usermodel.HSSFFont;
import org.apache.poi.hssf.usermodel.HSSFHyperlink;
import org.apache.poi.hssf.usermodel.HSSFPatriarch;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.util.HSSFColor;
import org.apache.poi.ss.usermodel.Hyperlink;

public class WriteImgUtil {
	
	/**
	 * 寫入圖片，並插入連接
	 * @param cell 要插入連接的單元格位置
	 * @param sheetName 插入的圖片所在的工做表
	 * @param patriarch 畫圖的頂級管理器，一個sheet只能獲取一次，屢次插入圖片請使用同一個patriarch對象
	 * @param wb HSSFWorkbook對象
	 * @param file 圖片文件
	 * @param cellPoint 自定義的對象，指定要插入圖片的座標(x, y)
	 * @return cellPoint 自定義的對象，返回下一個要插入圖片的座標(x, y)
	 * @throws IOException
	 */
	public static CellPoint whiteImg(HSSFCell cell, String sheetName, HSSFPatriarch patriarch, HSSFWorkbook wb, File file, CellPoint cellPoint) throws IOException {
		Hyperlink hyperlink = new HSSFHyperlink(Hyperlink.LINK_DOCUMENT);    
        // "'18 Q2截圖'"表示sheet頁名稱  "A10"表示第幾列第幾行
        hyperlink.setAddress("'18 Q2截圖'!A" + (cellPoint.getY() + 1));    
        cell.setHyperlink(hyperlink);
        
        /* 設置爲超連接的樣式*/    
        HSSFCellStyle linkStyle = wb.createCellStyle();    
        HSSFFont cellFont= wb.createFont();
        cellFont.setUnderline((byte) 1);    
        cellFont.setColor(HSSFColor.BLUE.index);    
        linkStyle.setFont(cellFont);    
        cell.setCellStyle(linkStyle); 
		
		BufferedImage bufferImg = null;
		ByteArrayOutputStream byteArrayOut = new ByteArrayOutputStream();
		bufferImg = ImageIO.read(file);
		ImageIO.write(bufferImg, "png", byteArrayOut);

		int x1 = cellPoint.getX();
		int y1 = cellPoint.getY();
		int width = bufferImg.getWidth() / 64;
		int height = bufferImg.getHeight() / 18;
		System.out.println(width + "..." + height);

		int x2 = x1 + width;
		int y2 = y1 + height;
		// anchor主要用於設置圖片的屬性
		HSSFClientAnchor anchor1 = new HSSFClientAnchor(0, 0, 0, 0, (short) x1, y1, (short) x2, y2);
		// 插入圖片
		patriarch.createPicture(anchor1, wb.addPicture(byteArrayOut.toByteArray(), HSSFWorkbook.PICTURE_TYPE_PNG));
		cellPoint = new CellPoint(x1, y2 + 1);
		return cellPoint;
	}
	
	public static class CellPoint {
		private int x;
		private int y;
		
        public CellPoint(int x, int y) {
	        super();
	        this.x = x;
	        this.y = y;
        }
        public int getX() {
        	return x;
        }
        public void setX(int x) {
        	this.x = x;
        }
        public int getY() {
        	return y;
        }
        public void setY(int y) {
        	this.y = y;
        }
	}
	
	public static void main(String[] args) {
		FileOutputStream fileOut = null;
		
		// 先把讀進來的圖片放到一個ByteArrayOutputStream中，以便產生ByteArray
		try {
			HSSFWorkbook wb = new HSSFWorkbook();
			HSSFSheet sheet1 = wb.createSheet("test href");
			String sheetName = "18 Q2截圖";
			HSSFSheet sheet2 = wb.createSheet(sheetName);
			// 畫圖的頂級管理器，一個sheet只能獲取一個（必定要注意這點）
			HSSFPatriarch patriarch = sheet2.createDrawingPatriarch();
			CellPoint cellPoint = new CellPoint(0, 1);
			for (int i = 0; i < 10; i++) {
				HSSFRow row = sheet1.createRow(i);
				HSSFCell cell = row.createCell(0);
				// 點擊進行跳轉    
		        cell.setCellValue("第" + (i + 1) + "個圖片連接");
		        
		        File file = null;
		        if (i%2 == 0) {
		        	file = new File("C:/Users/dulinan/Desktop/3333.png");
		        } else {
		        	file = new File("C:/Users/dulinan/Desktop/Desert.jpg");
		        }
		        
				
				cellPoint = whiteImg(cell, sheetName, patriarch, wb, file, cellPoint);
			}
			
			
			fileOut = new FileOutputStream("F:/測試Excel3.xls");
			// 寫入excel文件
			wb.write(fileOut);
			System.out.println("----Excle文件已生成------");
		}
		catch (Exception e) {
			e.printStackTrace();
		}
		finally {
			if (fileOut != null) {
				try {
					fileOut.close();
				}
				catch (IOException e) {
					e.printStackTrace();
				}
			}
		}
	}
}