java图片加水印代码 最好有实例！！！先谢了！！

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

}

}

图片水印

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)

}

}

/**

* 方法描述：<b>给图片增加水印.</b></br>

* 备 注: 在图片上写字符串

* 创 建 人: bo.gaobo</br>

* 创建日期: 2012-09-07</br>

* @param originalUrl 原始图片存储路径

* @param oldImg 原图片

* @param str 增加的字符串

* @param xLocation x坐标

* @param yLocation y坐标

* @param fontColor 颜色

* @param fontSize 字号

* @param typeFace 字体

* @param fileType 文件类型

*/

public static BufferedImage addStringToImg(String originalUrl, BufferedImage oldImg,String str,int xLocation,int yLocation, Color fontColor, int fontSize, String typeFace, String fileType) throws IOException{

FileOutputStream output = new FileOutputStream(originalUrl)

BufferedImage buffImg = oldImg

Graphics2D g = buffImg.createGraphics()

g = buffImg.createGraphics()

g.drawImage(buffImg, null, 0, 0)

g.setColor(fontColor)//设置字体颜色

g.setFont(new Font(typeFace, Font.PLAIN, fontSize))//设置字体和字号

g.drawString(str, xLocation, yLocation)//把字符串放在对应的坐标处

g.dispose()

ImageIO.write(buffImg, fileType, output)//设置文件类型

output.close()

return buffImg

}