利用java Socket檔案上傳/進度條實現代碼

1、用戶端運行程式：

代碼如下

複製代碼

package wtb.khd; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.DataOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.OutputStream; import java.net.Socket; import javax.swing.JButton; import javax.swing.JLabel; import javax.swing.JProgressBar; public class KHD{  private boolean isnoClose = true;  public boolean isIsnoClose() {   return isnoClose;  }  public void setIsnoClose(boolean isnoClose) {   this.isnoClose = isnoClose;  }  public static void main(String args[]){   final KHD khd = new KHD();   String filePath = "D:\檔案.zip";   khd.setIsnoClose(true);   File upload = new File(filePath);   long fileLength = upload.length();   String fileName = upload.getName();   try {    Socket client = null;    client = new Socket("localhost",8888); //"localhost"--->伺服器端IP    OutputStream out = client.getOutputStream();    DataOutputStream dos = new DataOutputStream(out);    dos.writeUTF("檔案名稱首碼_"+fileName);    dos.writeLong(fileLength);    FileInputStream fis = new FileInputStream(upload);    byte[] buffer = new byte[2048];    int len = 0;    double scbl = 0; //檔案上傳比例    int scdx = 0;  //檔案上傳大小    final JinDuBar jdb = new JinDuBar("檔案上傳",System.getProperty("user.dir")+"\bin\image\jindutiao.gif");    String[] uploadInfo = new String[]{"正在上傳檔案：" + filePath, "檔案名稱："+ fileName,      "上傳檔案大小："+fileLength+"位元組", "已上傳：0位元組", "上傳比例：0%"};    JLabel[] labels = jdb.getLabels();    for(int lxb = 0; lxb<labels.length; lxb++){     labels[lxb].setText(uploadInfo[lxb]);    }    JProgressBar p = jdb.getProgress();    JButton closeBtn = jdb.getCloseBtn();       closeBtn.addActionListener(new ActionListener() {     public void actionPerformed(ActionEvent ae) {      jdb.dispose();      khd.setIsnoClose(false);     }    });    while ((len = fis.read(buffer)) > 0 && khd.isnoClose) {     Thread.sleep(100);     scdx += len;     scbl = (double)scdx/fileLength;     int bl = (int)(scbl*100);     dos.write(buffer, 0, len);     p.setValue(bl);     p.setString(bl+"%");     String[] gxsc = new String[]{"已上傳："+scdx+"位元組", "上傳比例："+bl+"%"};     for(int lxb = 0; lxb<gxsc.length; lxb++){      labels[lxb+3].setText(gxsc[lxb]);     }    }    jdb.dispose();    out.close();    fis.close();    client.close();   } catch (Exception e1) {    e1.printStackTrace();   }  } }

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2、進度條

代碼如下

複製代碼

package wtb.util; import java.awt.BorderLayout; import java.awt.Color; import java.awt.Cursor; import java.awt.Dimension; import java.awt.GridLayout; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JProgressBar; import javax.swing.JWindow; @SuppressWarnings("serial") public class JinDuBar extends JWindow{  private JProgressBar progress;  private JButton btn;  private JLabel[] labels = new JLabel[5];  private JButton closeBtn;  public JProgressBar getProgress() {   return progress;  }  public void setProgress(JProgressBar progress) {   this.progress = progress;  }  public JButton getBtn() {   return btn;  }  public void setBtn(JButton btn) {   this.btn = btn;  }  public JLabel[] getLabels() {   return labels;  }  public void setLabels(JLabel[] labels) {   this.labels = labels;  }  public JButton getCloseBtn() {   return closeBtn;  }  public void setCloseBtn(JButton closeBtn) {   this.closeBtn = closeBtn;  }  public JinDuBar(String title,String bgImg){   setAlwaysOnTop(true);   setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));   JPanel splash = new JPanel(new BorderLayout());   JPanel top = new JPanel();   top.setBackground(new Color(255,153,204));   BorderLayout toplay = new BorderLayout();   top.setLayout(toplay);   JLabel tt = new JLabel(title);   ImageIcon cloImg = new ImageIcon(System.getProperty("user.dir") + "/bin/image/4.png");   closeBtn = new JButton("close ",cloImg);   closeBtn.setBackground(new Color(255,153,204));   top.add(tt, BorderLayout.CENTER);   top.add(closeBtn, BorderLayout.EAST);   top.add(new JLabel("   "), BorderLayout.WEST);   splash.add(top,BorderLayout.NORTH);   ImageIcon img = new ImageIcon(bgImg);   btn = new JButton(img);   getLayeredPane().add(btn, new Integer(Integer.MIN_VALUE));         btn.setBounds(0,0,img.getIconWidth(),img.getIconHeight());         GridLayout gl = new GridLayout(this.getLabels().length,1); //labels.length行1列         btn.setLayout(gl);         for(int i = 0; i<labels.length; i++){          this.getLabels()[i] = new JLabel("000"+i);          btn.add(labels[i]);         }   splash.add(btn, BorderLayout.CENTER);   progress = new JProgressBar(1, 100);   progress.setStringPainted(true);   progress.setBorderPainted(false);   progress.setString("0%");   progress.setBackground(Color.WHITE);   splash.add(progress, BorderLayout.SOUTH);   setContentPane(splash);   Dimension screen = getToolkit().getScreenSize();   setSize(img.getIconWidth(), img.getIconHeight()+60);   setLocation((screen.width - getSize().width)/2, (screen.height - getSize().height)/2);   new DragJWindow(this, splash);  //設定視窗可拖動   setVisible(true);  } }

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3、設定Window視窗可拖動

代碼如下

複製代碼

package wtb.util; import javax.swing.SwingUtilities; import java.awt.Component; import java.awt.Point; import java.awt.Window; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.awt.event.MouseListener; import java.awt.event.MouseMotionAdapter; public class DragJWindow {     private Window fWindow;     private Component fComponent;     private int dX;     private int dY;     public DragJWindow(Window window, Component component) {         fWindow = window;         fComponent = component;         fComponent.addMouseListener(createMouseListener());         fComponent.addMouseMotionListener(createMouseMotionListener());     }     private MouseListener createMouseListener() {         return new MouseAdapter() {             @Override             public void mousePressed(MouseEvent e) {                 Point clickPoint = new Point(e.getPoint());                 SwingUtilities.convertPointToScreen(clickPoint, fComponent);                 dX = clickPoint.x - fWindow.getX();                 dY = clickPoint.y - fWindow.getY();             }         };     }     private MouseMotionAdapter createMouseMotionListener() {         return new MouseMotionAdapter() {             @Override             public void mouseDragged(MouseEvent e) {                 Point dragPoint = new Point(e.getPoint());                 SwingUtilities.convertPointToScreen(dragPoint, fComponent);                 fWindow.setLocation(dragPoint.x - dX, dragPoint.y - dY);             }         };     } }

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伺服器端：
1、伺服器端運行程式

代碼如下

複製代碼

package wtb.fwq; import java.net.ServerSocket; import java.net.Socket; import wtb.fwq.UploadThread; public class UploadServer {  public final static String fileDir = "E:\wtb";  public static void main(String args[]) throws Exception {   ServerSocket server = null ;   Socket client = null ;   server = new ServerSocket(8888);   while(true){    client = server.accept();    //為每個使用者佈建一個線程    UploadThread uft = new UploadThread(client, fileDir);    new Thread(uft).start();   }  } }

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2、為每個使用者佈建一個線程的線程類

代碼如下

複製代碼

package wtb.fwq; import java.io.DataInputStream; import java.io.File; import java.io.FileOutputStream; import java.io.InputStream; import java.net.Socket; public class UploadThread implements Runnable {  private Socket client;  private String fileDir;  private String fileName;  public UploadThread(Socket client, String fileDir){   this.client = client;   this.fileDir = fileDir;  }  public void run(){   InputStream in = null ;   FileOutputStream fos = null;   try {    in = client.getInputStream();    DataInputStream dis = new DataInputStream(in);    fileName = dis.readUTF();    long fileLength = dis.readLong();    long xzdx = 0;    fos = new FileOutputStream(fileDir+File.separator+fileName);    byte[] buffer = new byte[1024];    int len = 0;    while ((len = dis.read(buffer)) > 0)    {     fos.write(buffer, 0, len);     xzdx += len;    }    fos.flush();    fos.close();    in.close();    client.close() ;    if(xzdx != fileLength){  //如果檔案未傳完，則刪除傳到伺服器端的檔案     File f = new File(fileDir+File.separator+fileName);     f.delete();    }   }catch(Exception e){    System.out.println("異常！！！！");   }  } } /************************/

運行結果檢視：