package com.sosee;

import javax.swing.JFrame;

public class PictMain extends JFrame {

/**

* @param args

*/

public static void main(String[] args) {

// TODO Auto-generated method stub

}

}

package com.sosee;

import javax.swing.JFrame;

public class PictMain extends JFrame {

private static final int WIDTH=500;//定义的宽度

private static final int HEIGHT=400;//定义的高度

/**

* 创建一个构造方法，参数为此窗口的标题

* @param title

*/

public PictMain(String title) {

super(title);

this.setSize(WIDTH, HEIGHT);//设置窗口大小

}

/**

* @param args

*/

public static void main(String[] args) {

// TODO Auto-generated method stub

}

}

package com.sosee;

import java.awt.Graphics;

import java.awt.Image;

import java.awt.event.KeyEvent;

import java.awt.event.KeyListener;

import java.io.File;

import java.io.IOException;

import javax.imageio.ImageIO;

import javax.swing.JPanel;

public class PictPanel extends JPanel implements KeyListener {

private final short UP=38;

private final short DOWN=40;

private final short LEFT=37;

private final short RIGHT=39;

private int x;

private int y;

private Image image=null;

/**

* 读取图片文件

* @param mapname

* @return

*/

private Image initmap(String fileName){

try {

image=ImageIO.read(new File(fileName));

} catch (IOException e) {

e.printStackTrace();

}

return image;

}

/**

* 构造方法，调用图形文件读取方法

*/

public PictPanel() {

image=initmap("c:/map.jpg");//这里可以随意指定一个图片文件

this.addKeyListener(this);

}

/**

* 通过重载此方法，实现在面板上绘制加载的图

*/

@Override

protected void paintComponent(Graphics g) {

// TODO Auto-generated method stub

super.paintComponent(g);

g.drawImage(image,x,y,null);

}

@Override

public void keyPressed(KeyEvent e) {

//38up,40down,37left,39right

switch(e.getKeyCode()){

case UP:

y=y-8;

break;

case DOWN:

y=y+8;

break;

case LEFT:

x=x+8;

break;

case RIGHT:

x=x-8;

break;

}

this.paint(this.getGraphics());

}

@Override

public void keyReleased(KeyEvent e) {

// TODO Auto-generated method stub

}

@Override

public void keyTyped(KeyEvent e) {

// TODO Auto-generated method stub

}

}

package com.sosee;

import javax.swing.JFrame;

public class PictMain extends JFrame {

private static final int WIDTH=500;//定义的宽度

private static final int HEIGHT=400;//定义的高度

/**

* 创建一个构造方法，参数为此窗口的标题

* @param title

*/

public PictMain(String title) {

super(title);

this.setSize(WIDTH, HEIGHT);//设置窗口大小

PictPanel pic=new PictPanel();

this.add(pic);

pic.setFocusable(true);

}

/**

* @param args

*/

public static void main(String[] args) {

PictMain frame=new PictMain("移动图片");

frame.setVisible(true);

}

}

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);