基於java網路聊天室--截圖實現

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package com.silianbo;/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */import java.awt.BorderLayout;import java.awt.Color;import java.awt.Container;import java.awt.Desktop;import java.awt.Dimension;import java.awt.Label;import java.awt.Rectangle;import java.awt.Robot;import java.awt.Toolkit;import java.awt.event.ActionEvent;import java.awt.image.BufferedImage;import java.io.File;import java.text.SimpleDateFormat;import java.util.Date;import javax.imageio.ImageIO;import javax.swing.JButton;import javax.swing.JDialog;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JPanel;import javax.swing.JTextArea;/** * * @author silianbo * 截屏功能 */public class CaptureScreen {     public static void captureScreen(String fileName, String folder) throws Exception {         Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();        Rectangle screenRectangle = new Rectangle(screenSize);        Robot robot = new Robot();        BufferedImage image = robot.createScreenCapture(screenRectangle);        //儲存路徑        File screenFile = new File(fileName);        if (!screenFile.exists()) {            screenFile.mkdir();        }        File f = new File(screenFile, folder);                 ImageIO.write(image, "png", f);        //自動開啟        if (Desktop.isDesktopSupported()                 && Desktop.getDesktop().isSupported(Desktop.Action.OPEN)) {            Desktop.getDesktop().open(f);        } else {        }    } //    public static void main(String[] args) {//        RandomName filename= new RandomName();//        try {//            captureScreen("C:\\Users\\silianbo\\Desktop\\電腦網路課程設計",filename+".png");//        } catch (Exception e) {//            // TODO Auto-generated catch block//            e.printStackTrace();//        }//    }}

　　

 1 /* 2  * To change this license header, choose License Headers in Project Properties. 3  * To change this template file, choose Tools | Templates 4  * and open the template in the editor. 5  */ 6 package com.silianbo; 7  8 import java.text.SimpleDateFormat; 9 import java.util.Date;10 11 /**12  *13  * @author silianbo14  * 檔案的重新命名，隨機產生15  * 檔案的格式為[email protected]16  * 17  */18 public class RandomName {19     public static void main(String[] args) {20         Date dt= new Date(System.currentTimeMillis());21         SimpleDateFormat sdf = new SimpleDateFormat();22         String fileName= sdf.format(dt);23         System.out.println(fileName);24     }25     26 }

 

基於java網路聊天室--實現