如何运用Java 给图片加文字水印？
作者：互联网
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);
}
}
标签：src,Java,int,targetImg,param,biao,水印,null,图片 来源： https://blog.51cto.com/u_14967986/2903508