给图片添加水印这个功能以前做项目的时候遇到过 但是后来好久不用今天突然想起来 就随笔记录一下吧 随便在记录一下自己当初踩的坑
package Img;
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 com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
import javax.imageio.ImageIO;
public class ImgUtil {
/**
* 添加图片水印
* @param pressImg
* @param targetImg
* @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();
}
}
/**
* 添加文字水印
*
* @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偏移量
* @param y
* --Y偏移量
*/
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-x,height-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("g:image/222.jpg", "g:image/225.jpg", 20, 20);
pressText("JiangNan", "g:image/226.jpg","宋体",10,10,60,260, 40);
}
}
这个就是我的工具类 ,但是很多人直接复制会出错,在g.drawString(str,x,y)这个方法中报错java.lang.charsequence一开始感觉莫名其妙的但是仔细查了一下才发现是我的jdk的原因将jdk降级就OK了 我用的1.8 我将jdk将到了1.6就好了 看来还是得多学英语啊!