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【Java进阶营】Java 给图片加 文字水印

【Java进阶营】Java 给图片加 文字水印

作者: 管彤Java架构师 | 来源:发表于2022-06-11 17:41 被阅读0次

    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;

    /**

    */

    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);
    
        }
    
    } 
    

    }

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