import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.RenderingHints;
import java.awt.image.BufferedImage;
import java.awt.image.ImageObserver;
import java.io.*;
import java.net.URL;
import java.util.Date;
import javax.imageio.ImageIO;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import javax.swing.ImageIcon;
/*******************************************************************************
* Description: 图片水印工具类
* @author zhaoronglei
* @version 1.0
*/
public class ImageRemarkUtil {
// 水印透明度
private static float alpha = 0.5f;
// 水印横向位置
private static int positionWidth = 150;
// 水印纵向位置
private static int positionHeight = 300;
// 水印文字字体
private static Font font = new Font("宋体", Font.BOLD, 72);
// 水印文字颜色
private static Color color = Color.red;
/**
*
* @param alpha
* 水印透明度
* @param positionWidth
* 水印横向位置
* @param positionHeight
* 水印纵向位置
* @param font
* 水印文字字体
* @param color
* 水印文字颜色
*/
public static void setImageMarkOptions(float alpha, int positionWidth,
int positionHeight, Font font, Color color) {
if (alpha != 0.0f)
ImageRemarkUtil.alpha = alpha;
if (positionWidth != 0)
ImageRemarkUtil.positionWidth = positionWidth;
if (positionHeight != 0)
ImageRemarkUtil.positionHeight = positionHeight;
if (font != null)
ImageRemarkUtil.font = font;
if (color != null)
ImageRemarkUtil.color = color;
}
/**
* 给图片添加水印图片
*
* @param iconPath
* 水印图片路径
* @param srcImgPath
* 源图片路径
* @param targerPath
* 目标图片路径
*/
public static void markImageByIcon(String iconPath, String srcImgPath,
String targerPath,HttpServletResponse response) {
markImageByIcon(iconPath, srcImgPath, targerPath, null,response);
}
/**
* 给图片添加水印图片、可设置水印图片旋转角度
*
* @param iconPath
* 水印图片路径
* @param srcImgPath
* 源图片路径
* @param targerPath
* 目标图片路径
* @param degree
* 水印图片旋转角度
*/
public static void markImageByIcon(String iconPath, String srcImgPath,
String targerPath, Integer degree,HttpServletResponse response) {
Date start = new Date();
ServletOutputStream os = null;
InputStream is;
Image srcImg;
try {
//远程，被覆盖的图片
if(srcImgPath.contains("http")){
URL url1 = new URL(srcImgPath);
is = url1.openStream();
}else{
//本地
is = getFile(srcImgPath);
}
srcImg = ImageIO.read(is);
BufferedImage buffImg = new BufferedImage(srcImg.getWidth(null),
srcImg.getHeight(null), BufferedImage.TYPE_INT_RGB);
// 1、得到画笔对象
Graphics2D g = buffImg.createGraphics();
// 2、设置对线段的锯齿状边缘处理
g.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
RenderingHints.VALUE_INTERPOLATION_BILINEAR);
g.drawImage(
srcImg.getScaledInstance(srcImg.getWidth(null),
srcImg.getHeight(null), Image.SCALE_SMOOTH), 0, 0,
null);
// 3、设置水印旋转
if (null != degree) {
g.rotate(Math.toRadians(degree),
(double) buffImg.getWidth() / 2,
(double) buffImg.getHeight() / 2);
}
// 4、水印图片的路径 水印图片一般为gif或者png的，这样可设置透明度
// 5、得到Image对象。
Image img = ImageIO.read(getFile(iconPath));
// 6、水印图片的位置
g.drawImage(img, 0, 0, null);
// 5、设置水印文字颜色
g.setColor(color);
// 6、设置水印文字Font
g.setFont(font);
// 7、设置水印文字透明度
g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, alpha));
// 8、第一参数->设置的内容，后面两个参数->文字在图片上的坐标位置(x,y)
g.drawString("复印无效", positionWidth, positionHeight);
// 7、释放资源
g.dispose();
// 8、生成图片
//os = new FileOutputStream(targerPath);
response.setHeader("Cache-Control", "no-store, no-cache");
response.setContentType("image/jpeg");
os = response.getOutputStream();
ImageIO.write(buffImg, "JPG", os);
Date end = new Date();
System.out.println("图片完成添加水印图片");
System.out.println("处理时间:"+(end.getTime()-start.getTime())/1000+"秒");
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (null != os)
os.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
/**
* 给图片添加水印文字
*
* @param logoText
* 水印文字
* @param srcImgPath
* 源图片路径
* @param targerPath
* 目标图片路径
*/
public static void markImageByText(String logoText, String srcImgPath,
String targerPath) {
markImageByText(logoText, srcImgPath, targerPath, null);
}
/**
* 给图片添加水印文字、可设置水印文字的旋转角度
*
* @param logoText
* @param srcImgPath
* @param targerPath
* @param degree
*/
public static void markImageByText(String logoText, String srcImgPath,
String targerPath, Integer degree) {
InputStream is = null;
OutputStream os = null;
try {
// 1、源图片
Image srcImg = ImageIO.read(new File(srcImgPath));
BufferedImage buffImg = new BufferedImage(srcImg.getWidth(null),
srcImg.getHeight(null), BufferedImage.TYPE_INT_RGB);
// 2、得到画笔对象
Graphics2D g = buffImg.createGraphics();
// 3、设置对线段的锯齿状边缘处理
g.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
RenderingHints.VALUE_INTERPOLATION_BILINEAR);
g.drawImage(
srcImg.getScaledInstance(srcImg.getWidth(null),
srcImg.getHeight(null), Image.SCALE_SMOOTH), 0, 0,
null);
// 4、设置水印旋转
if (null != degree) {
g.rotate(Math.toRadians(degree),
(double) buffImg.getWidth() / 2,
(double) buffImg.getHeight() / 2);
}
// 5、设置水印文字颜色
g.setColor(color);
// 6、设置水印文字Font
g.setFont(font);
// 7、设置水印文字透明度
g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP,
alpha));
// 8、第一参数->设置的内容，后面两个参数->文字在图片上的坐标位置(x,y)
g.drawString(logoText, positionWidth, positionHeight);
// 9、释放资源
g.dispose();
// 10、生成图片
os = new FileOutputStream(targerPath);
ImageIO.write(buffImg, "JPG", os);
System.out.println("图片完成添加水印文字");
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (null != is)
is.close();
} catch (Exception e) {
e.printStackTrace();
}
try {
if (null != os)
os.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
private static FileInputStream getFile(String srcImgPath) throws FileNotFoundException {
String filePath = String.valueOf(Thread.currentThread().getContextClassLoader().getResource(""))+"../../"; //项目路径
filePath = filePath.replaceAll("file:/", "");
filePath = filePath.replaceAll("%20", " ");
filePath = filePath.trim() + srcImgPath.trim();
if(filePath.indexOf(":") != 1){
filePath = File.separator + filePath;
}
return new FileInputStream(new File(filePath));
}
public static void main(String[] args) {
ImageIcon image= new ImageIcon(ClassLoader.getSystemResource("img/112.png"));
String srcImgPath = "d:/pic/gantan.jpg";
String logoText = "复 印 无 效";
String iconPath = "d:/pic/112.png";
String targerTextPath = "d:/qie_text.jpg";
String targerTextPath2 = "d:/qie_text_rotate.jpg";
String targerIconPath = "d:/qie_icon.jpg";
String targerIconPath2 = "d:/qie_icon_rotate.jpg";
System.out.println("给图片添加水印文字开始...");
// 给图片添加水印文字
markImageByText(logoText, srcImgPath, targerTextPath);
// 给图片添加水印文字,水印文字旋转-45
markImageByText(logoText, srcImgPath, targerTextPath2, -45);
System.out.println("给图片添加水印文字结束...");
System.out.println("给图片添加水印图片开始...");
setImageMarkOptions(0.3f, 1, 1, null, null);
// 给图片添加水印图片
//markImageByIcon(iconPath, srcImgPath, targerIconPath,response);
// 给图片添加水印图片,水印图片旋转-45
//markImageByIcon(iconPath, srcImgPath, targerIconPath2, -45);
System.out.println("给图片添加水印图片结束...");
}
}
