网上找了很多资料都没有生成gif图片的例子。但是生成水印的文件到不少,如果我们把gif图片合成水印后,图片就不动了,所以我写了个小例子供大家参考。(如果你想在某个图片上打印个动感图标,这个类就能很好地实现,前提是你必须先将动感图标分解成几张单独的gif图片。当然你可以用程序来实现。)
要用到 AnimatedGifEncoder 类自行下载
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package com.test;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import javax.imageio.ImageIO;
public class MakeOver {
public static void main(String[] args) {
MakeOver mo = new MakeOver();
mo.CreateGIF("e:/pic/test.gif","e:/map.gif","e:/pic/",82,395);
//参数列表:输出图片地址,加水印的图片地址,动态图标地址,纵坐标,横坐标
//注意:此 e:/pic/ 目录下的文件如下 1.gif 2.gif 3.gif 。。。。
}
public void CreateGIF(String outputFileName,String path1,String path2,int height,int weidth){
try {
// 指定Frame的文件
AnimatedGifEncoder e = new AnimatedGifEncoder();
OutputStream os = new FileOutputStream(outputFileName); //输出图片
e.start(os);// 开始处理
e.setQuality(15); //设置图片质量
e.setRepeat(0); //设置循环
e.setDelay(500); // 设置延迟时间
MakeOver abc = new MakeOver(); //实例化图片合成类
String path3 = ""; //动态图片地址
for (int i = 1; i < 3; i++) { //此处只添加 2 张gif图片
path3 = path2 + i +".gif";
BufferedImage im = abc.pressImage(path3,path1, weidth, height);
e.addFrame(im);// 循环加入Frame
}
e.finish();
} catch (Exception e) {
System.out.println(e);
e.printStackTrace();
}
}
public BufferedImage 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, x,
y, wideth_biao, height_biao, null);
// 水印文件结束
g.dispose();
return image;
} catch (Exception e) {
System.out.println(e);
e.printStackTrace();
}
return null;
}
}