java图片框_Java给图片添加边框

import java.awt.Color;

import java.awt.Graphics;

import java.awt.Image;

import java.awt.image.BufferedImage;

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import javax.imageio.ImageIO;

import jxl.Workbook;

import jxl.write.WritableImage;

import jxl.write.WritableSheet;

import jxl.write.WritableWorkbook;

import jxl.write.WriteException;

import com.sun.image.codec.jpeg.JPEGCodec;

import com.sun.image.codec.jpeg.JPEGImageEncoder;

public class AddBorder {

public static void main(String[] args) {

new AddBorder().addBorderToImage("e:/test.png");

}

public void addBorderToImage(String filePath) {

try {

File _file = new File(filePath); // 读入文件

Image src = javax.imageio.ImageIO.read(_file); // 构造Image对象

int width = src.getWidth(null); // 得到源图宽

int height = src.getHeight(null); // 得到源图长

BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);

Graphics graphics = image.getGraphics();

graphics.drawImage(src, 0, 0, width, height, null); // 绘制图

// 画边框

graphics.setColor(Color.BLACK);

graphics.drawRect(0, 0, width - 1, height - 1);

graphics.drawRect(1, 1, width - 1, height - 1);

graphics.drawRect(0, 0, width-2, height- 2);

FileOutputStream out = new FileOutputStream(filePath); // 输出到文件流

JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);

encoder.encode(image);

out.close();

}

catch (IOException e) {

e.printStackTrace();

}

}

}

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2010-09-06 10:03

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