java获取文件exif信息-添加图片文字水印

需要添加jar：metadata-extractor-2.3.1.jar
代码：

public class ImageInfo {
	private Integer id;
	private String author;
	private String desc;
	private String date;
	private String width;
	private String height;
	public ImageInfo(Integer id, String author, String desc,String date) {
		super();
		this.id = id;
		this.author = author;
		this.desc = desc;
		this.date=date;
	}
	public ImageInfo(String author, String desc) {
		super();
		this.id = 0;
		this.author = author;
		this.desc = desc;
	}
	public ImageInfo() {
		super();
		// TODO Auto-generated constructor stub
	}
	/**
	 * @return the id
	 */
	public Integer getId() {
		return id;
	}
	/**
	 * @param id the id to set
	 */
	public void setId(Integer id) {
		this.id = id;
	}
	/**
	 * @return the author
	 */
	public String getAuthor() {
		return author;
	}
	/**
	 * @param author the author to set
	 */
	public void setAuthor(String author) {
		this.author = author;
	}
	/**
	 * @return the desc
	 */
	public String getDesc() {
		return desc;
	}
	/**
	 * @param desc the desc to set
	 */
	public void setDesc(String desc) {
		this.desc = desc;
	}
	
	
	/* (non-Javadoc)
	 * @see java.lang.Object#toString()
	 */
	
	/**
	 * @return the date
	 */
	public String getDate() {
		return date;
	}
	/**
	 * @param date the date to set
	 */
	public void setDate(String date) {
		this.date = date;
	}
	 
	/**
	 * @return the width
	 */
	public String getWidth() {
		return width;
	}
	/**
	 * @param width the width to set
	 */
	public void setWidth(String width) {
		this.width = width;
	}
	/**
	 * @return the height
	 */
	public String getHeight() {
		return height;
	}
	/**
	 * @param height the height to set
	 */
	public void setHeight(String height) {
		this.height = height;
	}
	/* (non-Javadoc)
	 * @see java.lang.Object#toString()
	 */
	@Override
	public String toString() {
		return "ImageInfo [id=" + id + ", author=" + author + ", desc=" + desc
				+ ", date=" + date + ", width=" + width + ", height=" + height
				+ "]";
	}
	 
	
	
}

public static void createMark(String souchFilePath, String targetFilePath,
         String markContent, Color markContentColor, float qualNum,
         String fontType, int fontSize) {
       
        markContentColor = Color.red;
        ImageIcon imgIcon = new ImageIcon(souchFilePath);
        Image theImg = imgIcon.getImage();
        // Image可以获得 输入图片的信息
        int width = theImg.getWidth(null);
        int height = theImg.getHeight(null);

        // 800 800 为画出图片的大小
        BufferedImage bimage = new BufferedImage(width, height,
          BufferedImage.TYPE_INT_RGB);
        // 2d 画笔
        Graphics2D g = bimage.createGraphics();
        g.setColor(markContentColor);
        g.setBackground(Color.white);

        // 画出图片-----------------------------------
        g.drawImage(theImg, 0, 0, null);
        // 画出图片-----------------------------------

        // --------对要显示的文字进行处理--------------
        AttributedString ats = new AttributedString(markContent);
        Font f = new Font(fontType, Font.BOLD, fontSize);
        ats.addAttribute(TextAttribute.FONT, f, 0, markContent.length());
        AttributedCharacterIterator iter = ats.getIterator();
        // ----------------------
        int wd = getLength(markContent) * fontSize;
        g.drawString(iter, width-wd-fontSize-fontSize,
          height - 40);
        // 添加水印的文字和设置水印文字出现的内容 ----位置
        g.dispose();// 画笔结束
        try {
         // 输出 文件 到指定的路径
         FileOutputStream out = new FileOutputStream(targetFilePath);
         JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);

         JPEGEncodeParam param = encoder.getDefaultJPEGEncodeParam(bimage);

         param.setQuality(qualNum, true);
         encoder.encode(bimage, param);
         out.close();
        } catch (Exception e) {
         e.printStackTrace();
        }
     }
     
     
     public static int getLength(String str){
		 int wd = 0;
		 int p = 0;
		 int s = 0;
		 for (int i = 0; i < str.length(); i++){
			    char c = str.charAt(i);
			    if ((c >= 0x4e00)&&(c <= 0x9fbb)){
			    	s++;
			    }else{
			    	p++;
			    }
			}
		 wd = s + p/2;
		 return wd;
	 }



 public static ImageInfo getImageInfo(String filePath){
		 ImageInfo imageInfo = new ImageInfo();
		 File jpegFile = new File(filePath);
         Metadata metadata = null ;
		try {
			metadata = JpegMetadataReader.readMetadata(jpegFile);
			Directory exif = metadata.getDirectory(ExifDirectory.class);
	         Iterator tags = exif.getTagIterator();
	         while (tags.hasNext()) {
	             Tag tag = (Tag)tags.next();
	             if(tag.getTagType()==ExifDirectory.TAG_WIN_COMMENT){
	            	 imageInfo.setDesc(tag.getDescription());
	             }
	             if(tag.getTagType()==ExifDirectory.TAG_WIN_AUTHOR){
	            	 imageInfo.setAuthor(tag.getDescription());
	             }
	             if(tag.getTagType()==ExifDirectory.TAG_DATETIME){
	            	 imageInfo.setDate(tag.getDescription().substring(0,10).replace(":","."));
	             }
	             if(tag.getTagType()==ExifDirectory.TAG_EXIF_IMAGE_WIDTH){
	            	 imageInfo.setWidth(tag.getDescription().substring(0,10).split(" ")[0]);
	             }
	             if(tag.getTagType()==ExifDirectory.TAG_EXIF_IMAGE_HEIGHT){
	            	 imageInfo.setHeight(tag.getDescription().substring(0,10).split(" ")[0]);
	             }
	         }
	         return imageInfo;
		} catch (JpegProcessingException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (MetadataException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		 return null;
	 }
	
     public static void main(String[] args) throws Exception {
    	 String fileName = "DSC01221.JPG";
         String inFilePath = "F:/images/nice/" + fileName;
         String outFilePath = "F:/" + fileName;
         ImageInfo imageInfo = getImageInfo(inFilePath);
         System.out.println(imageInfo.toString());
         int p = Integer.parseInt(imageInfo.getWidth())/52;
         System.out.println(p);
         ImageUtils.createMark(inFilePath, outFilePath, imageInfo.getAuthor()+" "+imageInfo.getDesc()+" "+imageInfo.getDate(), null, 1, "",p);
     }

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