哎~要是你给我个分就好了!我前几天刚刚做的!你拿去吧!
/*
作者:泡沫
地址:http://hi..com/av51
功能:用于截取图片,方便快捷!
mail:yuhuidog#163.com (注意:其中#为@)
*/
import java.awt.AWTException;
import java.awt.BorderLayout;
import java.awt.Button;
import java.awt.Color;
import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.FileDialog;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Panel;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
public class AWTpicture extends Frame implements MouseListener,MouseMotionListener,ActionListener{
private int firstX,firstY,frameWidth,frameHeight;
private int firstWith,firstHeight,firstPointx,firstPointy;
private BufferedImage bi,sbi,original;
private Robot robot;
private Rectangle rectangle;
private Rectangle rectangleCursor,rectangleCursorUp,rectangleCursorDown,rectangleCursorLeft,rectangleCursorRight;
private Rectangle rectangleCursorRU,rectangleCursorRD,rectangleCursorLU,rectangleCursorLD;
private Image bis;
private Dimension dimension;
private Button button,button2,clearButton;
private Point[] point=new Point[3];
private int width,height;
private int nPoints=5;
private Panel panel;
private boolean drawHasFinish=false,change=false;
private int changeFirstPointX,changeFirstPointY,changeWidth,changeHeight;
private boolean changeUP=false,changeDOWN=false,changeLEFT=false,changeRIGHT=false,changeRU=false,changeRD=false,changeLU=false,changeLD=false;
private boolean clearPicture=false,redraw=false;
private FileDialog fileDialog;
private AWTpicture(){
//取得屏幕大小
dimension=Toolkit.getDefaultToolkit().getScreenSize();
frameWidth=dimension.width;
frameHeight=dimension.height;
fileDialog=new FileDialog(this,"泡沫截图",FileDialog.SAVE);
rectangle=new Rectangle(frameWidth,frameHeight);
panel=new Panel();
button=new Button("退出");
button.setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
button.setBackground(Color.green);
button2=new Button("截取");
button2.setBackground(Color.darkGray);
button2.addActionListener(new MyTakePicture(this));
button2.setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
button.addActionListener(this);
clearButton=new Button("重绘");
clearButton.setBackground(Color.green);
clearButton.setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
clearButton.addActionListener(new MyClearPicture(this));
panel.setLayout(new BorderLayout());
panel.add(clearButton, BorderLayout.SOUTH);
panel.add(button, BorderLayout.NORTH);
panel.add(button2, BorderLayout.CENTER);
try {
robot=new Robot();
} catch (AWTException e) {
e.printStackTrace();
}
//截取全屏
bi=robot.createScreenCapture(rectangle);
original=bi;
this.setSize(frameWidth,frameHeight);
this.setUndecorated(true);
this.addMouseListener(this);
this.addMouseMotionListener(this);
this.add(panel,BorderLayout.EAST);
this.setCursor(new Cursor(Cursor.CROSSHAIR_CURSOR));
this.setVisible(true);
this.repaint();
}
public static void main(String[] args){
new AWTpicture();
}
public void paint(Graphics g) {
this.drawR(g);
}
//缓存图片
public void update(Graphics g){
if(bis==null){
bis=this.createImage(frameWidth, frameHeight);
}
Graphics ga=bis.getGraphics();
Color c=ga.getColor();
ga.setColor(Color.black);
ga.fillRect(0, 0, frameWidth, frameHeight);
ga.setColor(c);
paint(ga);
g.drawImage(bis, 0, 0, frameWidth, frameHeight, null);
}
public void mouseClicked(MouseEvent e) {
}
public void mouseEntered(MouseEvent e) {
// TODO Auto-generated method stub
}
public void mouseExited(MouseEvent e) {
// TODO Auto-generated method stub
}
public void mousePressed(MouseEvent e) {
// TODO Auto-generated method stub
}
public void mouseReleased(MouseEvent e) {
if(!drawHasFinish){
if(point[1].x<point[2].x && point[1].y<point[2].y){
firstPointx=point[1].x;
firstPointy=point[1].y;
}
if(point[1].x>point[2].x && point[1].y<point[2].y){
firstPointx=point[2].x;
firstPointy=point[1].y;
}
if(point[1].x<point[2].x && point[1].y>point[2].y){
firstPointx=point[1].x;
firstPointy=point[2].y;
}
if(point[1].x>point[2].x && point[1].y>point[2].y){
firstPointx=point[2].x;
firstPointy=point[2].y;
}
changeFirstPointX=firstPointx;
changeFirstPointY=firstPointy;
if(point[1]!=null && point[2]!=null ){
rectangleCursorUp=new Rectangle(firstPointx+20,firstPointy-10,width-40,20);
rectangleCursorDown=new Rectangle(firstPointx+20,firstPointy+height-10,width-40,20);
rectangleCursorLeft=new Rectangle(firstPointx-10,firstPointy+10,20,height-20);
rectangleCursorRight=new Rectangle(firstPointx+width-10,firstPointy+10,20,height-20);
rectangleCursorLU=new Rectangle(firstPointx-10,firstPointy-10,30,20);
rectangleCursorLD=new Rectangle(firstPointx-10,firstPointy+height-10,30,20);
rectangleCursorRU=new Rectangle(firstPointx+width-10,firstPointy-10,20,20);
rectangleCursorRD=new Rectangle(firstPointx+width-10,firstPointy+height-10,20,20);
drawHasFinish=true;
}
}
//确定每边能改变大小的矩形
if(drawHasFinish){
rectangleCursorUp=new Rectangle(changeFirstPointX+20,changeFirstPointY-10,changeWidth-40,20);
rectangleCursorDown=new Rectangle(changeFirstPointX+20,changeFirstPointY+changeHeight-10,changeWidth-40,20);
rectangleCursorLeft=new Rectangle(changeFirstPointX-10,changeFirstPointY+10,20,changeHeight-20);
rectangleCursorRight=new Rectangle(changeFirstPointX+changeWidth-10,changeFirstPointY+10,20,changeHeight-20);
rectangleCursorLU=new Rectangle(changeFirstPointX-2,changeFirstPointY-2,10,10);
rectangleCursorLD=new Rectangle(changeFirstPointX-2,changeFirstPointY+changeHeight-2,10,10);
rectangleCursorRU=new Rectangle(changeFirstPointX+changeWidth-2,changeFirstPointY-2,10,10);
rectangleCursorRD=new Rectangle(changeFirstPointX+changeWidth-2,changeFirstPointY+changeHeight-2,10,10);
}
}
public void mouseDragged(MouseEvent e) {
point[2]=e.getPoint();
//if(!drawHasFinish){
this.repaint();
// }
//托动鼠标移动大小
if(change){
if(changeUP){
changeHeight=changeHeight+changeFirstPointY-e.getPoint().y;
changeFirstPointY=e.getPoint().y;
}
if(changeDOWN){
changeHeight=e.getPoint().y-changeFirstPointY;
}
if(changeLEFT){
changeWidth=changeWidth+changeFirstPointX-e.getPoint().x;
changeFirstPointX=e.getPoint().x;
}
if(changeRIGHT){
changeWidth=e.getPoint().x-changeFirstPointX;
}
if(changeLU){
changeWidth=changeWidth+changeFirstPointX-e.getPoint().x;
changeHeight=changeHeight+changeFirstPointY-e.getPoint().y;
changeFirstPointX=e.getPoint().x;
changeFirstPointY=e.getPoint().y;
}
if(changeLD){
changeWidth=changeWidth+changeFirstPointX-e.getPoint().x;
changeHeight=e.getPoint().y-changeFirstPointY;
changeFirstPointX=e.getPoint().x;
}
if(changeRU){
changeWidth=e.getPoint().x-changeFirstPointX;
changeHeight=changeHeight+changeFirstPointY-e.getPoint().y;
changeFirstPointY=e.getPoint().y;
}
if(changeRD){
changeWidth=e.getPoint().x-changeFirstPointX;
changeHeight=e.getPoint().y-changeFirstPointY;
}
this.repaint();
}
}
public void mouseMoved(MouseEvent e) {
point[1]=e.getPoint();
//改变鼠标的形状
if(rectangleCursorUp!=null && rectangleCursorUp.contains(point[1])){
this.setCursor(new Cursor(Cursor.N_RESIZE_CURSOR));
change=true;
changeUP=true;
}else if(rectangleCursorDown!=null && rectangleCursorDown.contains(point[1])){
this.setCursor(new Cursor(Cursor.S_RESIZE_CURSOR));
change=true;
changeDOWN=true;
}else if(rectangleCursorLeft!=null && rectangleCursorLeft.contains(point[1])){
this.setCursor(new Cursor(Cursor.W_RESIZE_CURSOR));
change=true;
changeLEFT=true;
}else if(rectangleCursorRight!=null && rectangleCursorRight.contains(point[1]) ){
this.setCursor(new Cursor(Cursor.W_RESIZE_CURSOR));
change=true;
changeRIGHT=true;
}else if(rectangleCursorLU !=null && rectangleCursorLU.contains(point[1])){
this.setCursor(new Cursor(Cursor.NW_RESIZE_CURSOR));
change=true;
changeLU=true;
}else if(rectangleCursorLD !=null && rectangleCursorLD.contains(point[1])){
this.setCursor(new Cursor(Cursor.SW_RESIZE_CURSOR));
change=true;
changeLD=true;
}else if(rectangleCursorRU!=null && rectangleCursorRU.contains(point[1])){
this.setCursor(new Cursor(Cursor.NE_RESIZE_CURSOR));
change=true;
changeRU=true;
}else if(rectangleCursorRD!=null && rectangleCursorRD.contains(point[1])){
this.setCursor(new Cursor(Cursor.SE_RESIZE_CURSOR));
change=true;
changeRD=true;
}else{
this.setCursor(new Cursor(Cursor.CROSSHAIR_CURSOR));
changeUP=false;changeDOWN=false;changeRIGHT=false;changeLEFT=false;changeRU=false;
changeRD=false;changeLU=false;changeLD=false;
}
redraw=false;
}
@Override
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
class MyTakePicture implements ActionListener{
AWTpicture aWTpicture;
MyTakePicture(AWTpicture aWTpicture){
this.aWTpicture=aWTpicture;
}
//保存图片
public void actionPerformed(ActionEvent e) {
fileDialog.setVisible(true);
if(changeWidth>0){
sbi=bi.getSubimage(changeFirstPointX,changeFirstPointY,changeWidth,changeHeight);
File file=new File(fileDialog.getDirectory());
file.mkdir();
try {
ImageIO.write(sbi, "jpeg",new File(file,fileDialog.getFile()+".jpg") );
} catch (IOException e1) {
e1.printStackTrace();
}
}
}
}
class MyClearPicture implements ActionListener{
AWTpicture aWTpicture;
MyClearPicture(AWTpicture aWTpicture){
this.aWTpicture=aWTpicture;
}
public void actionPerformed(ActionEvent e) {
drawHasFinish=false;
change=false;
redraw=true;
rectangleCursorUp=null;
rectangleCursorDown=null;
rectangleCursorLeft=null;
rectangleCursorRight=null;
rectangleCursorRU=null;
rectangleCursorRD=null;
rectangleCursorLU=null;
rectangleCursorLD=null;
changeWidth=0;
changeHeight=0;
aWTpicture.repaint();
}
}
public void drawR(Graphics g){
g.drawImage(bi, 0,0,frameWidth,frameHeight, null);
if(point[1]!=null &&point[2]!=null &&!drawHasFinish && !redraw){
int[] xPoints={point[1].x,point[2].x,point[2].x,point[1].x,point[1].x};
int[] yPoints={point[1].y,point[1].y,point[2].y,point[2].y,point[1].y};
width=(point[2].x-point[1].x)>0?(point[2].x-point[1].x):(point[1].x-point[2].x);
height=(point[2].y-point[1].y)>0?(point[2].y-point[1].y):(point[1].y-point[2].y);
changeWidth=width;
changeHeight=height;
Color c=g.getColor();
g.setColor(Color.red);
g.drawString(width+"*"+height, point[1].x, point[1].y-5);
//画点
/*int i;
if()*/
if(point[1].x<point[2].x && point[1].y<point[2].y){
firstPointx=point[1].x;
firstPointy=point[1].y;
}
if(point[1].x>point[2].x && point[1].y<point[2].y){
firstPointx=point[2].x;
firstPointy=point[1].y;
}
if(point[1].x<point[2].x && point[1].y>point[2].y){
firstPointx=point[1].x;
firstPointy=point[2].y;
}
if(point[1].x>point[2].x && point[1].y>point[2].y){
firstPointx=point[2].x;
firstPointy=point[2].y;
}
g.fillRect(firstPointx-2,firstPointy-2 , 5,5);
g.fillRect(firstPointx+(width)/2,firstPointy-2 , 5,5);
g.fillRect(firstPointx+width-2,firstPointy-2 , 5,5);
g.fillRect(firstPointx+width-2,firstPointy+ height/2-2, 5,5);
g.fillRect(firstPointx+width-2,firstPointy+height-2, 5,5);
g.fillRect(firstPointx+(width)/2,firstPointy+height-2, 5,5);
g.fillRect(firstPointx-2,firstPointy+height-2, 5,5);
g.fillRect(firstPointx-2,firstPointy+ height/2-2, 5,5);
//画矩形
//g.drawString("fafda", point[1].x-100, point[1].y-5);
g.drawPolyline(xPoints, yPoints, nPoints);
}
if(change){
g.setColor(Color.red);
g.drawString(changeWidth+"*"+changeHeight, changeFirstPointX, changeFirstPointY-5);
g.fillRect(changeFirstPointX-2,changeFirstPointY-2 , 5,5);
g.fillRect(changeFirstPointX+(changeWidth)/2,changeFirstPointY-2 , 5,5);
g.fillRect(changeFirstPointX+changeWidth-2,changeFirstPointY-2 , 5,5);
g.fillRect(changeFirstPointX+changeWidth-2,changeFirstPointY+ changeHeight/2-2, 5,5);
g.fillRect(changeFirstPointX+changeWidth-2,changeFirstPointY+changeHeight-2, 5,5);
g.fillRect(changeFirstPointX+(changeWidth)/2,changeFirstPointY+changeHeight-2, 5,5);
g.fillRect(changeFirstPointX-2,changeFirstPointY+changeHeight-2, 5,5);
g.fillRect(changeFirstPointX-2,changeFirstPointY+ changeHeight/2-2, 5,5);
g.drawRect(changeFirstPointX, changeFirstPointY, changeWidth, changeHeight);
}
}
}
❷ 像QQ的截图功能 随意截屏这种功能 是用什么语言写的啊javac
1、截图是把电脑上所显示的部分截取下来形成图片。下载图片是把网页上的图片保存版到本机。2、电脑截图最简权单的就是按PrtScr（printScreen）键，一般在方向键上面的那个键盘区的左上角。然后在电脑的程序、附件、画图软件中粘贴就可以保存下来。当然也可以粘贴到其他软件中。比如photoshop、word、 等等。3、 截图可以在聊天过程中选择聊天窗口下面的一个小显示器加小剪刀图标，然后拖动鼠标出现小框选择要截取的屏幕部分。之后双击鼠标就可以把要截取的部分粘贴到聊天窗口里。还有一种方法是 软件开着，但是不管有没有聊天窗口可以按CTRL+ALT+A键，同样可以截取，截取之后的内容想用的时候在任何可以粘贴的软件中按粘贴即可。或者按快捷键CTRL+V也可以实现粘贴。两种方法在想取消截屏时按鼠标右键都可以取消。4、如果只要一小部分就可以用 来截取，方法上面说过了。或者只要一个软件或网页的窗口可以按ALT+PrtScr键就可以只截取软件窗口了。
❸ java 实现截屏！
主要是利用java的几个先有的函数，如Robot这个类的一个方法createScreenCapture一个获得一个任意大小的屏幕图像（在这里是全屏图像），而所谓的截图就是在这个图像上画出一个矩形，再利用上面的方法获得这部分的图像，程序中的cf.setAlwaysOnTop(true)是必需的;看起来是在屏幕上截图，其实只是在一个在一个内镶有桌面背景的JFrame中截图。不知道还有没有其他的好方法~
附上代码：
import java.awt.*;
import java.awt.image.*;
import java.awt.event.*;
import java.io.File;
import javax.imageio.ImageIO;
import javax.swing.*;
public class Camera {
/**
* @param args
*/
public static void main(String[] args) {
CameraJFrame cf=new CameraJFrame();
cf.setAlwaysOnTop(true);
cf.setUndecorated(true);
cf.setVisible(true);
}
}
class CameraJFrame extends JFrame
{
/**
*
*/
private static final long serialVersionUID = 1L;
Dimension di=Toolkit.getDefaultToolkit().getScreenSize();
public CameraJFrame()
{
setSize(di);
getContentPane().add(new CameraJPanel());
}
class CameraJPanel extends JPanel implements MouseListener,MouseMotionListener
{
/**
* flag主要是用来判别状态。
* 文件的格式名是unname+数字编号，格式是png
*/
private static final long serialVersionUID = 1L;
BufferedImage bi,get;
int startx,starty,endx,endy;
int flag=1;
String filename="unname";
String fileformat="png";
int count=1;
public CameraJPanel()
{
try
{
Robot ro=new Robot();
bi=ro.createScreenCapture(new Rectangle(0,0,di.width,di.height));
}
catch(Exception e)
{
e.printStackTrace();
}
addMouseListener(this);
addMouseMotionListener(this);
}
public void paintComponent(Graphics g)
{
g.drawImage(bi,0,0,di.width,di.height,this);
g.setColor(Color.red);
g.drawRect(startx, starty, endx-startx, endy-starty);
}
public void mouseClicked(MouseEvent e) {
// TODO Auto-generated method stub
if(e.getButton()==MouseEvent.BUTTON3)
{
System.exit(0);
}
else if(e.getClickCount()==2)
{
try
{
Robot ro=new Robot();
get=ro.createScreenCapture(new Rectangle(startx,starty,endx-startx,endy-starty));
String name=filename+String.valueOf(count++)+"."+fileformat;
File f=new File(name);
ImageIO.write(get, fileformat, f);
}
catch(Exception ex)
{
ex.printStackTrace();
}
flag=1; //置flag为1，以便重新开始截图。
startx=starty=endx=endy=0;
repaint();
}
}
public void mouseEntered(MouseEvent e) {}
public void mouseExited(MouseEvent e) {}
public void mousePressed(MouseEvent e) {
if(flag==1)
{
startx=e.getX();
starty=e.getY();
}
}
public void mouseReleased(MouseEvent e) {
flag=0;
}
public void mouseDragged(MouseEvent e) {
flag=1;
endx=e.getX();
endy=e.getY();
repaint();
}
public void mouseMoved(MouseEvent e) {}
}
}
❹ 求助：java web开发实现截图，客户机截取本机图片，上传到服务器
要想客户端截图，除非开发一个插件，并且客户端要安装才行
否则随便打开一个网页都能截图的话那就是病毒了，你也不想随便打开一个网页就把你屏幕上的内容截图发到网站吧，呵呵
❺ java 实现截图并且 保存在本地
import java.awt.AWTException;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionAdapter;
import java.awt.image.BufferedImage;
import java.awt.image.RescaleOp;
import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.imageio.ImageIO;
import javax.swing.JFrame;
import javax.swing.filechooser.FileSystemView;
/**
* java截屏
* 运行后将当前屏幕截取，并最大化显示。
* 拖拽鼠标，选择自己需要的部分。
* 按Esc键保存图片到桌面，并退出程序。
* 点击右上角（没有可见的按钮），退出程序，不保存图片。
*
* @author JinCeon
*/
public class SnapshotTest {
public static void main(String[] args) {
// 全屏运行
RectD rd = new RectD();
GraphicsDevice gd = GraphicsEnvironment.getLocalGraphicsEnvironment()
.getDefaultScreenDevice();
gd.setFullScreenWindow(rd);
}
}
class RectD extends JFrame {
private static final long serialVersionUID = 1L;
int orgx, orgy, endx, endy;
Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
BufferedImage image;
BufferedImage tempImage;
BufferedImage saveImage;
Graphics g;
@Override
public void paint(Graphics g) {
RescaleOp ro = new RescaleOp(0.8f, 0, null);
tempImage = ro.filter(image, null);
g.drawImage(tempImage, 0, 0, this);
}
public RectD() {
snapshot();
setVisible(true);
// setSize(d);//最大化窗口
setDefaultCloseOperation(EXIT_ON_CLOSE);
this.addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent e) {
orgx = e.getX();
orgy = e.getY();
}
});
this.addMouseMotionListener(new MouseMotionAdapter() {
public void mouseDragged(MouseEvent e) {
endx = e.getX();
endy = e.getY();
g = getGraphics();
g.drawImage(tempImage, 0, 0, RectD.this);
int x = Math.min(orgx, endx);
int y = Math.min(orgy, endy);
int width = Math.abs(endx - orgx)+1;
int height = Math.abs(endy - orgy)+1;
// 加上1，防止width或height为0
g.setColor(Color.BLUE);
g.drawRect(x-1, y-1, width+1, height+1);
//减1，加1都是为了防止图片将矩形框覆盖掉
saveImage = image.getSubimage(x, y, width, height);
g.drawImage(saveImage, x, y, RectD.this);
}
});
this.addKeyListener(new KeyAdapter() {
@Override
public void keyReleased(KeyEvent e) {
// 按Esc键退出
if (e.getKeyCode() == 27) {
saveToFile();
System.exit(0);
}
}
});
}
public void saveToFile() {
SimpleDateFormat sdf = new SimpleDateFormat("yyyymmddHHmmss");
String name = sdf.format(new Date());
File path = FileSystemView.getFileSystemView().getHomeDirectory();
String format = "jpg";
File f = new File(path + File.separator + name + "." + format);
try {
ImageIO.write(saveImage, format, f);
} catch (IOException e) {
e.printStackTrace();
}
}
public void snapshot() {
try {
Robot robot = new Robot();
Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
image = robot.createScreenCapture(new Rectangle(0, 0, d.width,
d.height));
} catch (AWTException e) {
e.printStackTrace();
}
}
}
❻ 哪里有JAVA写的类似QQ截图工具的源代码
不能立即给你提供源码 但是可以教给你怎么实现。
首先 你要截屏 肯定专要在属于用鼠标圈定属一个区域来截取这个区域。
你可以这样：
先截取当前屏幕的满屏图片：new robot().createScreenCapture(r) 这个是截屏代码 r是Rectangle类型 代表要截取的区域。
然后用 JDialog 做一个无控制条的窗口，大小设置成满屏，把截取的这个满屏的图片贴到这个 JDiaglog 里
然后做一下鼠标圈定区域，这个很简单 不详细说了， 最后对你圈定的这个区域再做一次截屏，这个不就是你要的截图了。，。 最后别忘了 截屏完毕后 关闭JDialog
你要是觉得这样做麻烦，也没别的办法。 反正我很明白 QQ的截屏也是这样做的