程序代码：

import java.awt.BorderLayout;
import java.awt.Color;
import java.import java.awt.Image;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import import import javax.imageio.ImageIO;
import javax.sound.sampled.ReverbType;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;


public class Test extends JFrame{
    private BufferedImage image;
    private JButton jButton;
    private JPanel jPanel;
    private  ImageIcon imageIcon;
    private File f;
    private int height,width;
    public Test(){
        super("测试");
        f=new File("C:/Users/wenguang/Desktop/新建文件夹/33.jpg");
        try {
            image=ImageIO.read(f);
            imageIcon=new ImageIcon(image);
            width = imageIcon.getIconWidth();
            height = imageIcon.getIconHeight();
        } catch (IOException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        }
         
        if (width > 1000) {
            width = 1276;
            height = 850;
        }
        imageIcon.setImage(imageIcon.getImage().getScaledInstance(width, height,
                Image.SCALE_DEFAULT));
        jPanel=new JPanel(new BorderLayout());
        JLabel jLabel=new JLabel(imageIcon);
        jPanel.add(jLabel,BorderLayout.CENTER);
        //jPanel.setBackground(new Color(220,190,195));
        jButton=new JButton("rotate");
        jButton.addActionListener(new ActionListener() {
            
            @Override
            public void actionPerformed(ActionEvent e) {
                // TODO Auto-generated method stub
            ImageChange change=    new ImageChange();
            try {
                 remove(jPanel);
                 image=ImageIO.read(change.rotateImg(image, 90, Color.red));//用IO流来读取图片
                 imageIcon=new ImageIcon(image);//转换类型
                    width = imageIcon.getIconWidth();//获取大小
                    height = imageIcon.getIconHeight();
                    if (width > 1000) {
                        width = 1276;
                        height = 850;
                    }
                    imageIcon.setImage(imageIcon.getImage().getScaledInstance(width, height,//设置图片的大小
                            Image.SCALE_DEFAULT));
                    jPanel=new JPanel(new BorderLayout());
                    JLabel jLabel=new JLabel(imageIcon);/*添加图片到面板中**/
                    jPanel.add(jLabel,BorderLayout.CENTER);
                    //jPanel.setBackground(new Color(220,190,195));
                    getContentPane().add(jButton,new BorderLayout().SOUTH);
                    getContentPane().add(jPanel,new BorderLayout().CENTER);
                    validate();
                    //System.err.println("11111");
            } catch (IOException e1) {
                // TODO Auto-generated catch block
                e1.printStackTrace();
            }
            }
        });
        getContentPane().add(jButton,new BorderLayout().SOUTH);
        getContentPane().add(jPanel,new BorderLayout().CENTER);
        setBounds(100, 100, 1276, 850);
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        setVisible(true);
    }
    public static void main(String[] args) {
         new Test();
    }

}
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.Transparency;
import java.awt.geom.AffineTransform;
import java.awt.image.AffineTransformOp;
import java.awt.image.BufferedImage;
import import import import import javax.imageio.ImageIO;
import javax.imageio.stream.ImageOutputStream;

public class ImageChange {

    public static InputStream rotateImg(BufferedImage image, int degree, Color bgcolor) throws IOException {

        int iw = image.getWidth();//原始图象的宽度 
        int ih = image.getHeight();//原始图象的高度
        int w = 0;
        int h = 0;
        int x = 0;
        int y = 0;
        degree = degree % 360;
        if (degree < 0)
            degree = 360 + degree;//将角度转换到0-360度之间
        double ang = Math.toRadians(degree);//将角度转为弧度

        /**
         *确定旋转后的图象的高度和宽度
         */

        if (degree == 180 || degree == 0 || degree == 360) {
            w = iw;
            h = ih;
        } else if (degree == 90 || degree == 270) {
            w = ih;
            h = iw;
        } else {
            int d = iw + ih;
            w = (int) (d * Math.abs(Math.cos(ang)));
            h = (int) (d * Math.abs(Math.sin(ang)));
        }

        x = (w / 2) - (iw / 2);//确定原点坐标
        y = (h / 2) - (ih / 2);
        BufferedImage rotatedImage = new BufferedImage(w, h, image.getType());
        Graphics2D gs = (Graphics2D)rotatedImage.getGraphics();
        if(bgcolor==null){
            rotatedImage  = gs.getDeviceConfiguration().createCompatibleImage(w, h, Transparency.TRANSLUCENT);
        }else{
            gs.setColor(bgcolor);
            gs.fillRect(0, 0, w, h);//以给定颜色绘制旋转后图片的背景
        }
        
        AffineTransform at = new AffineTransform();
        at.rotate(ang, w / 2, h / 2);//旋转图象
        at.translate(x, y);
        AffineTransformOp op = new AffineTransformOp(at, AffineTransformOp.TYPE_BICUBIC);
        op.filter(image, rotatedImage);
        image = rotatedImage;
        
        ByteArrayOutputStream  byteOut= new ByteArrayOutputStream();
        ImageOutputStream iamgeOut = ImageIO.createImageOutputStream(byteOut);
        
        ImageIO.write(image, "jpg", iamgeOut);
        InputStream  inputStream = new ByteArrayInputStream(byteOut.toByteArray());
        
        return inputStream;
    }
    
    
}