哎~要是你給我個分就好了!我前幾天剛剛做的!你拿去吧!
/*
作者:泡沫
地址:http://hi..com/av51
功能:用於截取圖片,方便快捷!
mail:yuhuidog#163.com (注意:其中#為@)
*/
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,"泡沫截圖",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("重繪");
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);
}
//緩存圖片
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;
}
}
//確定每邊能改變大小的矩形
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();
// }
//托動滑鼠移動大小
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();
//改變滑鼠的形狀
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;
}
//保存圖片
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);
//畫點
/*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);
//畫矩形
//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的截圖功能 隨意截屏這種功能 是用什麼語言寫的啊javac
1、截圖是把電腦上所顯示的部分截取下來形成圖片。下載圖片是把網頁上的圖片保存版到本機。2、電腦截圖最簡權單的就是按PrtScr（printScreen）鍵，一般在方向鍵上面的那個鍵盤區的左上角。然後在電腦的程序、附件、畫圖軟體中粘貼就可以保存下來。當然也可以粘貼到其他軟體中。比如photoshop、word、 等等。3、 截圖可以在聊天過程中選擇聊天窗口下面的一個小顯示器加小剪刀圖標，然後拖動滑鼠出現小框選擇要截取的屏幕部分。之後雙擊滑鼠就可以把要截取的部分粘貼到聊天窗口裡。還有一種方法是 軟體開著，但是不管有沒有聊天窗口可以按CTRL+ALT+A鍵，同樣可以截取，截取之後的內容想用的時候在任何可以粘貼的軟體中按粘貼即可。或者按快捷鍵CTRL+V也可以實現粘貼。兩種方法在想取消截屏時按滑鼠右鍵都可以取消。4、如果只要一小部分就可以用 來截取，方法上面說過了。或者只要一個軟體或網頁的窗口可以按ALT+PrtScr鍵就可以只截取軟體窗口了。
❸ java 實現截屏！
主要是利用java的幾個先有的函數，如Robot這個類的一個方法createScreenCapture一個獲得一個任意大小的屏幕圖像（在這里是全屏圖像），而所謂的截圖就是在這個圖像上畫出一個矩形，再利用上面的方法獲得這部分的圖像，程序中的cf.setAlwaysOnTop(true)是必需的;看起來是在屏幕上截圖，其實只是在一個在一個內鑲有桌面背景的JFrame中截圖。不知道還有沒有其他的好方法~
附上代碼：
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主要是用來判別狀態。
* 文件的格式名是unname+數字編號，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為1，以便重新開始截圖。
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開發實現截圖，客戶機截取本機圖片，上傳到伺服器
要想客戶端截圖，除非開發一個插件，並且客戶端要安裝才行
否則隨便打開一個網頁都能截圖的話那就是病毒了，你也不想隨便打開一個網頁就把你屏幕上的內容截圖發到網站吧，呵呵
❺ java 實現截圖並且 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
* 運行後將當前屏幕截取，並最大化顯示。
* 拖拽滑鼠，選擇自己需要的部分。
* 按Esc鍵保存圖片到桌面，並退出程序。
* 點擊右上角（沒有可見的按鈕），退出程序，不保存圖片。
*
* @author JinCeon
*/
public class SnapshotTest {
public static void main(String[] args) {
// 全屏運行
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為0
g.setColor(Color.BLUE);
g.drawRect(x-1, y-1, width+1, height+1);
//減1，加1都是為了防止圖片將矩形框覆蓋掉
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鍵退出
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 哪裡有JAVA寫的類似QQ截圖工具的源代碼
不能立即給你提供源碼 但是可以教給你怎麼實現。
首先 你要截屏 肯定專要在屬於用滑鼠圈定屬一個區域來截取這個區域。
你可以這樣：
先截取當前屏幕的滿屏圖片：new robot().createScreenCapture(r) 這個是截屏代碼 r是Rectangle類型 代表要截取的區域。
然後用 JDialog 做一個無控制條的窗口，大小設置成滿屏，把截取的這個滿屏的圖片貼到這個 JDiaglog 里
然後做一下滑鼠圈定區域，這個很簡單 不詳細說了， 最後對你圈定的這個區域再做一次截屏，這個不就是你要的截圖了。，。 最後別忘了 截屏完畢後 關閉JDialog
你要是覺得這樣做麻煩，也沒別的辦法。 反正我很明白 QQ的截屏也是這樣做的