使用Java添加图片水印和文字水印

方法一:

 

import  java.awt.*;  
import  java.awt.image.*;  
import  java.io.*;  
import  javax.swing.*;  
import  com.sun.image.codec.jpeg.*;  
public   class  WaterSet {  
    /** */ /**  
     * 给图片添加水印  
     *   
     * @param filePath  
     *            需要添加水印的图片的路径  
     * @param markContent  
     *            水印的文字  
     * @param markContentColor  
     *            水印文字的颜色  
     * @param qualNum  
     *            图片质量  
     * @return  
     */   
    public   boolean  createMark(String filePath, String markContent,  
            Color markContentColor, float  qualNum) {  
        ImageIcon imgIcon = new  ImageIcon(filePath);  
        Image theImg = imgIcon.getImage();  
        int  width = theImg.getWidth( null );  
        int  height = theImg.getHeight( null );  
        BufferedImage bimage = new  BufferedImage(width, height,  
                BufferedImage.TYPE_INT_RGB);  
        Graphics2D g = bimage.createGraphics();  
        g.setColor(markContentColor);  
        g.setBackground(Color.white);  
        g.drawImage(theImg, 0 ,  0 ,  null );  
        g.drawString(markContent, width / 5 , height /  5 );  // 添加水印的文字和设置水印文字出现的内容   
        g.dispose();  
        try  {  
            FileOutputStream out = new  FileOutputStream(filePath);  
            JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);  
            JPEGEncodeParam param = encoder.getDefaultJPEGEncodeParam(bimage);  
            param.setQuality(qualNum, true );  
            encoder.encode(bimage, param);  
            out.close();  
        } catch  (Exception e) {  
            return   false ;  
        }  
        return   true ;  
    }  
}  

 

 

方法二:添加图片水印和文字水印两种,水印图片可以是GIF,PNG透明的文件,我一般采用的是PNG的,因为它的质量和GIF相比要高一些。

import  java.awt.Color;  
import  java.awt.Font;  
import  java.awt.Graphics;  
import  java.awt.Image;  
import  java.awt.image.BufferedImage;  
import  java.io.File;  
import  java.io.FileOutputStream;  
import  javax.imageio.ImageIO;  
import  com.sun.image.codec.jpeg.JPEGCodec;  
import  com.sun.image.codec.jpeg.JPEGImageEncoder;  
public   final   class  ImageUtils {  
    public  ImageUtils() {  
    }  
    /**/ /*  
     * public final static String getPressImgPath() { return ApplicationContext  
     * .getRealPath("/template/data/util/shuiyin.gif"); }  
     */   
    /** */ /**  
     * 把图片印刷到图片上  
     *   
     * @param pressImg --  
     *            水印文件  
     * @param targetImg --  
     *            目标文件  
     * @param x  
     *            --x坐标  
     * @param y  
     *            --y坐标  
     */   
    public   final   static   void  pressImage(String pressImg, String targetImg,  
            int  x,  int  y) {  
        try  {  
            //目标文件   
            File _file = new  File(targetImg);  
            Image src = ImageIO.read(_file);  
            int  wideth = src.getWidth( null );  
            int  height = src.getHeight( null );  
            BufferedImage image = new  BufferedImage(wideth, height,  
                    BufferedImage.TYPE_INT_RGB);  
            Graphics g = image.createGraphics();  
            g.drawImage(src, 0 ,  0 , wideth, height,  null );  
            //水印文件   
            File _filebiao = new  File(pressImg);  
            Image src_biao = ImageIO.read(_filebiao);  
            int  wideth_biao = src_biao.getWidth( null );  
            int  height_biao = src_biao.getHeight( null );  
            g.drawImage(src_biao, (wideth - wideth_biao) / 2 ,  
                    (height - height_biao) / 2 , wideth_biao, height_biao,  null );  
            //水印文件结束   
            g.dispose();  
            FileOutputStream out = new  FileOutputStream(targetImg);  
            JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);  
            encoder.encode(image);  
            out.close();  
        } catch  (Exception e) {  
            e.printStackTrace();  
        }  
    }  
    /** */ /**  
     * 打印文字水印图片  
     *   
     * @param pressText  
     *            --文字  
     * @param targetImg --  
     *            目标图片  
     * @param fontName --  
     *            字体名  
     * @param fontStyle --  
     *            字体样式  
     * @param color --  
     *            字体颜色  
     * @param fontSize --  
     *            字体大小  
     * @param x --  
     *            偏移量  
     * @param y  
     */   
    public   static   void  pressText(String pressText, String targetImg,  
            String fontName, int  fontStyle,  int  color,  int  fontSize,  int  x,  
            int  y) {  
        try  {  
            File _file = new  File(targetImg);  
            Image src = ImageIO.read(_file);  
            int  wideth = src.getWidth( null );  
            int  height = src.getHeight( null );  
            BufferedImage image = new  BufferedImage(wideth, height,  
                    BufferedImage.TYPE_INT_RGB);  
            Graphics g = image.createGraphics();  
            g.drawImage(src, 0 ,  0 , wideth, height,  null );  
            // String s="www.qhd.com.cn";   
            g.setColor(Color.RED);  
            g.setFont(new  Font(fontName, fontStyle, fontSize));  
            g.drawString(pressText, wideth - fontSize - x, height - fontSize  
                    / 2  - y);  
            g.dispose();  
            FileOutputStream out = new  FileOutputStream(targetImg);  
            JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);  
            encoder.encode(image);  
            out.close();  
        } catch  (Exception e) {  
            System.out.println(e);  
        }  
    }  
    public   static   void  main(String[] args) {  
        pressImage("F:/logo.png" ,           "F:/123.jpg" ,  0 ,  0 );  
    }  
}  

 

 

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转载自memoryforwyl.iteye.com/blog/2325983