java 图片水印处理类

package com.fh.util;

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 javax.imageio.ImageIO;
//import java.io.FileOutputStream;
//import com.sun.image.codec.jpeg.JPEGCodec;
//import com.sun.image.codec.jpeg.JPEGImageEncoder;

/**
 * 说明：图片水印处理类 
 * 作者：FH Admin 
 * from：fhadmin.cn
 */
public class Watermark {
	
		private	static String strFWATERM,strIWATERM;
		
		static{
			strFWATERM = Tools.readTxtFile(Const.FWATERM);	//读取文字水印配置
			strIWATERM = Tools.readTxtFile(Const.IWATERM);	//读取图片水印配置
		}
		
		/**
		 * 刷新
		*/
		public static void fushValue(){
			strFWATERM = Tools.readTxtFile(Const.FWATERM);	//读取文字水印配置
			strIWATERM = Tools.readTxtFile(Const.IWATERM);	//读取图片水印配置
		}
			
		/**
		 * @param imagePath 图片全路径
		*/
	  	public static void setWatemark(String imagePath){ 
	  		//文字水印
	  		if(null != strFWATERM && !"".equals(strFWATERM)){
				String strFW[] = strFWATERM.split(",fh,");
				if(strFW.length == 5){
					if("yes".equals(strFW[0])){
						pressText(strFW[1].toString(), imagePath, "", 1, Color.RED,Integer.parseInt(strFW[2]), Integer.parseInt(strFW[3]), Integer.parseInt(strFW[4]));	//文字
					}
				}
			}
	  		//图片水印
			if(null != strIWATERM && !"".equals(strIWATERM)){
				String strIW[] = strIWATERM.split(",fh,");
				if(strIW.length == 4){
					if("yes".equals(strIW[0])){
						pressImage(PathUtil.getClasspath() + Const.FILEPATHIMG+strIW[1], imagePath, Integer.parseInt(strIW[2]), Integer.parseInt(strIW[3]));
					}
				}
			}
		  } 
	  
	    /**
	     * 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);
	            g.drawImage(src_biao, x, y, 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();*/
	            String formatName = targetImg.substring(targetImg.lastIndexOf(".") + 1);
	            ImageIO.write(image, /*"GIF"*/ formatName /* format desired */ , new File(targetImg) /* target */ );
	            
	        } 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, Color 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);
	            g.setFont(new Font(fontName, fontStyle, fontSize));
	            g.drawString(pressText, x, y);
	            g.dispose();
	            /*FileOutputStream out = new FileOutputStream(targetImg);
	            JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
	            encoder.encode(image);
	            out.close();*/
	            String formatName = targetImg.substring(targetImg.lastIndexOf(".") + 1);
	            ImageIO.write(image, /*"GIF"*/ formatName /* format desired */ , new File(targetImg) /* target */ );
	        } catch (Exception e) {
	            System.out.println(e);
	        }
	    }  
	  
	
	
}