java生成水印

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  • Post category:java


package com.zte.club.util;

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.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.UUID;

import javax.imageio.ImageIO;
import javax.swing.ImageIcon;

/*******************************************************************************
* Description: 图片水印工具类
******************************************************************************/
public class WaterMarkImageUtils {

// 水印透明度
private static float alpha = 0.15f;
// 水印横向位置
private static int positionWidth = -15;
// 水印纵向位置
private static int positionHeight = 84;
// 水印文字字体
private static Font font = new Font("SimHei", Font.PLAIN, 29);
// 水印文字颜色
private static Color color = Color.gray;

public static void createWaterMarkByName(String name, String imageFile) {

if (name.length() >= 12) {
setImageMarkOptions(0.15f, -15, 84, new Font("SimHei", Font.PLAIN, 22), Color.gray);
} else if (name.length() < 12 && name.length() > 9) {
setImageMarkOptions(0.15f, -15, 84, new Font("SimHei", Font.PLAIN, 26), Color.gray);
} else {
setImageMarkOptions(0.15f, 26, 84, new Font("SimHei", Font.PLAIN, 26), Color.gray);
}

markImageByText(name, 148, 148, imageFile, -45);
}

/**
*
* @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)
WaterMarkImageUtils.alpha = alpha;
if (positionWidth != 0)
WaterMarkImageUtils.positionWidth = positionWidth;
if (positionHeight != 0)
WaterMarkImageUtils.positionHeight = positionHeight;
if (font != null)
WaterMarkImageUtils.font = font;
if (color != null)
WaterMarkImageUtils.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) {
markImageByIcon(iconPath, srcImgPath, targerPath, null);
}

/**
* 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) {
OutputStream os = null;
try {

Image srcImg = ImageIO.read(new File(srcImgPath));

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
ImageIcon imgIcon = new ImageIcon(iconPath);

// 5、得到Image对象。
Image img = imgIcon.getImage();

g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, alpha));

// 6、水印图片的位置
g.drawImage(img, positionWidth, positionHeight, null);
g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER));
// 7、释放资源
g.dispose();

// 8、生成图片
os = new FileOutputStream(targerPath);
ImageIO.write(buffImg, "JPG", os);

System.out.println("图片完成添加水印图片");

} 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();
}
}
}

public static void markImageByText(String logoText, int imgWidth, int imgHeight, String targerPath,
Integer degree) {

InputStream is = null;
OutputStream os = null;
try {

BufferedImage buffImg = new BufferedImage(imgWidth, imgHeight, BufferedImage.TYPE_INT_RGB);

// 2、得到画笔对象
Graphics2D g = buffImg.createGraphics();

g.setBackground(Color.WHITE);
g.clearRect(0, 0, imgWidth, imgHeight);

// 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();
// 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

File tmpFile = new File(targerPath);
if (!tmpFile.getParentFile().exists()) {
tmpFile.getParentFile().mkdirs();
}

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();
}
}
}

public static void main(String[] args) {

String logoText = "10066666欧阳锋";
String logoText1 = "10099999叶问";
String logoText2 = "10088888西门吹雪";
String logoText3 = "西门吹雪";
String logoText4 = "李寻欢";
String logoText5 = "叶问";

String targetImage = "e:/10066666.jpg";
String targetImage1 = "e:/10099999.jpg";
String targetImage2 = "e:/10088888.jpg";
String targetImage3 = "e:/10099991.jpg";
String targetImage4 = "e:/10099992.jpg";
String targetImage5 = "e:/10099993.jpg";

System.out.println("生成水印文字开始...");

createWaterMarkByName(logoText,targetImage);
createWaterMarkByName(logoText1,targetImage1);
createWaterMarkByName(logoText2,targetImage2);
createWaterMarkByName(logoText3,targetImage3);
createWaterMarkByName(logoText4,targetImage4);
createWaterMarkByName(logoText5,targetImage5);

System.out.println("生成水印文字结束...");

}

}



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