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如何运用Java 给图片加文字水印？

本文主要是介绍如何运用Java 给图片加文字水印？，对大家解决编程问题具有一定的参考价值，需要的程序猿们随着小编来一起学习吧！
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：www fhadmin org  */ 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 --          *           游戏目标文件          * @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 = www.sangpi.comnew 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);             }         }                     
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