java绘制图片工具类

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() {

}

/**
* 把图片印刷到图片上
* @param pressImg -- 水印文件
* @param targetImg -- 目标文件
* @param x
* @param y
*/
public final static void pressImage(String pressImg, String targetImg, 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);
  
   // 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 - x, height - height_biao -y, wideth_biao,
   height_biao, null);
   // /
   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 --x轴偏移量
* @param y --y轴便宜量
*/

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);
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:/images/qing_big.gif", "f:/images/w_cl_007.gif", 20 ,20);
}
}

 

转自：http://hi.baidu.com/wabdqn/blog/item/7ac28e547cdc635c574e00be.html