Use java to implement FTP upload and download queue window function (ftp software development 2)-javaTutorial-php.cn

1. First, take a look at the interface of the queue window

Use java to implement FTP upload and download queue window function (ftp software development 2)

2. Take a look at the interface of the upload queue window

Use java to implement FTP upload and download queue window function (ftp software development 2)

3. Take a look at the interface of the download queue window

Use java to implement FTP upload and download queue window function (ftp software development 2)

package com.oyp.ftp.panel.queue; 
 
import static java.awt.BorderLayout.CENTER; 
import static java.awt.BorderLayout.EAST; 
import static javax.swing.ListSelectionModel.SINGLE_SELECTION; 
 
import java.awt.BorderLayout; 
import java.awt.event.ActionEvent; 
import java.awt.event.ActionListener; 
import java.io.File; 
import java.io.IOException; 
import java.util.LinkedList; 
 
import javax.swing.BoxLayout; 
import javax.swing.JButton; 
import javax.swing.JPanel; 
import javax.swing.JScrollPane; 
import javax.swing.JTable; 
import javax.swing.JToggleButton; 
import javax.swing.JToolBar; 
import javax.swing.ListSelectionModel; 
import javax.swing.Timer; 
import javax.swing.table.DefaultTableModel; 
 
import com.oyp.ftp.FTPClientFrame; 
import com.oyp.ftp.utils.FtpClient; 
import com.oyp.ftp.utils.FtpFile; 
 
/** 
 * 任务队列控制面板 
 */ 
public class QueuePanel extends JPanel implements ActionListener { 
 private JTable queueTable = new JTable(); // 显示任务队列的表格组件 
 private JScrollPane scrollPane = new JScrollPane(); 
 private FTPClientFrame frame; // 主窗体的引用对象 
 private String[] columns; 
 private FtpClient ftpClient; // FTP协议的控制类 
 private Timer queueTimer;  // 队列的定时器 
 private LinkedList<Object[]> localQueue; // 本地面板的上传队列 
 private LinkedList<Object[]> ftpQueue;  // FTP面板的下载队列 
 private JToggleButton stopButton; 
 private boolean stop = false; // 队列的控制变量 
 
 /** 
  * 默认的构造方法 
  */ 
 public QueuePanel() { 
  initComponent(); 
 } 
 
 /** 
  * 自定义的构造方法 
  * 
  * @param frame 
  *   主窗体 
  */ 
 public QueuePanel(FTPClientFrame frame) { 
  this.frame = frame; 
  // 从主窗体获取本地面板的上传队列 
  localQueue = (LinkedList<Object[]>) frame.getLocalPanel().getQueue(); 
  // 从主窗体获取FTP面板的下载队列 
  ftpQueue = (LinkedList<Object[]>) frame.getFtpPanel().getQueue(); 
  initComponent(); // 初始化窗体界面 
  // 创建定时器，每间隔1秒执行队列刷新任务 
  queueTimer = new Timer(1000, new ActionListener() { 
   /** 
    * 定时器的事件处理方法 
    */ 
   @Override 
   public void actionPerformed(ActionEvent e) { 
    if (localQueue.size() + ftpQueue.size() == queueTable 
      .getRowCount()) // 如果队列大小没有改变 
     return; // 结束本方法，不做任何操作 
    refreshQueue(); // 否则刷新显示队列信息的表格数据 
   } 
  }); 
 } 
 
 private void initComponent() { 
  BorderLayout cardLayout = new BorderLayout(); 
  setLayout(cardLayout); 
  columns = new String[] { "任务名称", "方向", "主机", "执行状态" }; 
  queueTable.setModel(new DefaultTableModel(new Object[][] {}, columns)); 
  queueTable.getTableHeader().setReorderingAllowed(false); 
  scrollPane.setViewportView(queueTable); 
  cardLayout.layoutContainer(scrollPane); 
  add(scrollPane, CENTER); 
 
  JToolBar controlTool = new JToolBar(JToolBar.VERTICAL); 
  controlTool.setRollover(true); 
  controlTool.setFloatable(false); 
  JButton upButton = new JButton("上移"); 
  upButton.setActionCommand("up"); 
  upButton.addActionListener(this); 
  JButton downButton = new JButton("下移"); 
  downButton.setActionCommand("down"); 
  downButton.addActionListener(this); 
  stopButton = new JToggleButton("暂停"); 
  stopButton.setActionCommand("stop&start"); 
  stopButton.addActionListener(this); 
  JButton delButton = new JButton("删除"); 
  delButton.setActionCommand("del"); 
  delButton.addActionListener(this); 
  JButton clearButton = new JButton("清空"); 
  clearButton.setActionCommand("clear"); 
  clearButton.addActionListener(this); 
  controlTool.setLayout(new BoxLayout(controlTool, BoxLayout.Y_AXIS)); 
  controlTool.add(upButton); 
  controlTool.add(downButton); 
  controlTool.add(stopButton); 
  controlTool.add(delButton); 
  controlTool.add(clearButton); 
  add(controlTool, EAST); 
 } 
 
 public void startQueue() { 
  ftpClient = frame.getFtpClient(); 
  queueTimer.start(); 
 } 
 
 /** 
  * 界面上按钮的事件处理方法 
  */ 
 @Override 
 public void actionPerformed(ActionEvent e) { 
  final String command = e.getActionCommand(); 
  if (command.equals("stop&start")) {// 处理暂停按钮事件 
   if (stopButton.isSelected()) { 
    stop = true; 
    stopButton.setText("继续"); 
   } else { 
    stop = false; 
    stopButton.setText("暂停"); 
   } 
  } 
  // 处理上移和下移按钮事件 
  if (command.equals("up") || command.equals("down")) { 
   up_Down_Action(command); // 调用处理上移和下移动作的方法 
  } 
  if (command.equals("del")) {// 处理删除按钮的事件 
   int row = queueTable.getSelectedRow(); // 获取显示队列的表格的当前选择行 
   if (row < 0) 
    return; 
   // 获取选择行的第一个表格单元值 
   Object valueAt = queueTable.getValueAt(row, 0); 
   // 如果选择内容是File类的对象 
   if (valueAt instanceof File) { 
    File file = (File) valueAt; 
    int size = localQueue.size(); // 获取上传队列大小 
    for (int i = 0; i < size; i++) { // 遍历上传队列 
     if (localQueue.get(i)[0].equals(file)) { 
      localQueue.remove(i); // 从上传队列中删除文件对象 
     } 
    } 
   } else if (valueAt instanceof String) { // 如果选择的是字符串对象 
    String fileStr = (String) valueAt; 
    int size = ftpQueue.size(); // 获取上传队列的大小 
    for (int i = 0; i < size; i++) { // 遍历上传队列 
     // 获取上传队列中的文件对象 
     FtpFile ftpFile = (FtpFile) ftpQueue.get(i)[0]; 
     if (ftpFile.getAbsolutePath().equals(fileStr)) { 
      ftpQueue.remove(i); // 从上传队列中删除该文件对象 
     } 
    } 
   } 
   refreshQueue(); // 刷新队列列表 
  } 
  if (command.equals("clear")) { // 处理清空按钮的事件 
   localQueue.clear(); // 调用本地面板的队列的clear()方法 
   ftpQueue.clear(); // 调用FTP面板的队列的clear()方法 
  } 
 } 
 
 /** 
  * 队列任务的上移和下移动作处理方法 
  * 
  * @param command 
  *   上移或下移命令 
  */ 
 private void up_Down_Action(final String command) { 
  int row = queueTable.getSelectedRow(); // 获取队列表格的当前选择行号 
  if (row < 0) 
   return; 
  // 获取当前选择行的第一个单元值 
  Object valueAt = queueTable.getValueAt(row, 0); 
  // 获取当前选择行的第二个单元值作为判断上传或下载方向的依据 
  String orientation = (String) queueTable.getValueAt(row, 1); 
  if (orientation.equals("上传")) { // 如果是上传任务 
   String value = ((File) valueAt).getAbsolutePath(); 
   int size = localQueue.size(); 
   for (int i = 0; i < size; i++) { // 遍历上传队列 
    Object[] que = localQueue.get(i); 
    File file = (File) que[0]; 
    // 从队列中，遍历到选择的上传任务的文件对象 
    if (file.getAbsolutePath().equals(value)) { 
     ListSelectionModel selModel = queueTable 
       .getSelectionModel(); // 获取表格的选择模型 
     selModel // 设置选择模型的单选模式 
       .setSelectionMode(ListSelectionModel.SINGLE_SELECTION); 
     int dsize = localQueue.size(); // 获取本地上传队列的大小 
     int drow = queueTable.getSelectedRow();// 获取队列表格的当前选择行号 
     int queueVal = localQueue.size() - dsize; 
 
     int next = -1; 
     int selIndex = -1; 
     if (command.equals("up")) { 
      if (i < 1) // 限制选择范围 
       return; 
      selIndex = drow - queueVal - 1; 
      next = i - 1; 
     } else { 
      if (i >= size - 1) // 限制选择范围 
       return; 
      selIndex = drow - queueVal + 1; 
      next = i + 1; 
     } 
     // 交换连个队列位置的任务 
     Object[] temp = localQueue.get(next); 
     localQueue.set(next, que); 
     localQueue.set(i, temp); 
     refreshQueue(); // 刷新队列表格的列表 
     // 设置表格选择第一行 
     selModel.setSelectionInterval(0, selIndex); 
     break; 
    } 
   } 
  } else if (orientation.equals("下载")) { // 如果是下载任务 
   String value = (String) valueAt; 
   int size = ftpQueue.size(); // 获取FTP下载队列的大小 
   for (int i = 0; i < size; i++) { // 遍历下载队列 
    Object[] que = ftpQueue.get(i); 
    FtpFile file = (FtpFile) que[0]; // 获取每个下载任务的FTP文件对象 
    if (file.getAbsolutePath().equals(value)) {// 
     ListSelectionModel selModel = queueTable 
       .getSelectionModel(); // 获取任务队列表格的选择模型 
     // 设置模型使用单选模式 
     selModel.setSelectionMode(SINGLE_SELECTION); 
     int dsize = ftpQueue.size(); 
     int drow = queueTable.getSelectedRow(); 
     int queueVal = ftpQueue.size() - dsize; 
 
     int next = -1; 
     int selIndex = -1; 
     if (command.equals("up")) { 
      if (i < 1) // 限制选择范围 
       return; 
      selIndex = drow - queueVal - 1; 
      next = i - 1; 
     } else { 
      if (i >= size - 1) // 限制选择范围 
       return; 
      selIndex = drow - queueVal + 1; 
      next = i + 1; 
     } 
     // 交换连个队列位置的任务内容 
     Object[] temp = ftpQueue.get(next); 
     ftpQueue.set(next, que); 
     ftpQueue.set(i, temp); 
     refreshQueue(); // 刷新任务队列的表格列表 
     // 选择表格的第一行 
     selModel.setSelectionInterval(0, selIndex); 
     break; 
    } 
   } 
  } 
 } 
 
 /** 
  * 刷新队列的方法 
  */ 
 private synchronized void refreshQueue() { 
  // 如果自动关机按钮被按下并且上传和下载的队列都有任务 
  if (frame.getShutdownButton().isSelected() && localQueue.isEmpty() 
    && ftpQueue.isEmpty()) { 
   try { 
    // 执行系统关机命令，延迟30秒钟 
    Runtime.getRuntime().exec("shutdown -s -t 30"); 
   } catch (IOException e) { 
    e.printStackTrace(); 
   } 
  } 
  // 创建表格的数据模型对象 
  DefaultTableModel model = new DefaultTableModel(columns, 0); 
  // 获取本地上传队列中的任务 
  Object[] localQueueArray = localQueue.toArray(); 
  // 遍历本地上传任务 
  for (int i = 0; i < localQueueArray.length; i++) { 
   Object[] queueValue = (Object[]) localQueueArray[i]; 
   if (queueValue == null) 
    continue; 
   File localFile = (File) queueValue[0]; 
   // 把上传队列的任务添加到表格组件的数据模型中 
   model.addRow(new Object[] { localFile.getAbsoluteFile(), "上传", 
     ftpClient.getServer(), i == 0 ? "正在上传" : "等待上传" }); 
  } 
  // 获取下载队列的任务 
  Object[] ftpQueueArray = ftpQueue.toArray(); 
  // 遍历下载队列 
  for (int i = 0; i < ftpQueueArray.length; i++) { 
   Object[] queueValue = (Object[]) ftpQueueArray[i]; 
   if (queueValue == null) 
    continue; 
   FtpFile ftpFile = (FtpFile) queueValue[0]; 
   // 把下载队列的任务添加到表格组件的数据模型中 
   model.addRow(new Object[] { ftpFile.getAbsolutePath(), "下载", 
     ftpClient.getServer(), i == 0 ? "正在下载" : "等待下载" }); 
  } 
  queueTable.setModel(model); // 设置表格使用本方法的表格数据模型 
 } 
 
 public boolean isStop() { 
  return stop; 
 } 
}

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5. Implementation of the upload queue window

package com.oyp.ftp.panel.queue; 
 
import java.awt.CardLayout; 
 
import javax.swing.JPanel; 
import javax.swing.JScrollPane; 
import javax.swing.JTable; 
import javax.swing.SwingUtilities; 
import javax.swing.table.DefaultTableModel; 
import javax.swing.table.TableColumn; 
 
import com.oyp.ftp.panel.QueueTableCellRanderer; 
import com.oyp.ftp.utils.ProgressArg; 
 
public class UploadPanel extends JPanel { 
 private JTable uploadTable = new JTable(); // 表格组件 
 private JScrollPane scrollPane = new JScrollPane(); 
 private DefaultTableModel model; // 表格的数据模型 
 
 /** 
  * 构造方法，用于初始化程序界面 
  */ 
 public UploadPanel() { 
  CardLayout cardLayout = new CardLayout(); 
  setLayout(cardLayout); 
  ProgressArg progressArg = new ProgressArg(-1, -1, -1); 
  model = new DefaultTableModel(new Object[][] { new Object[] { "", "", 
    "", "", progressArg } }, new String[] { "文件名", "大小", "远程文件名", 
    "主机", "状态" }); 
  uploadTable.setModel(model); 
  uploadTable.getTableHeader().setReorderingAllowed(false); 
  uploadTable.setRowSelectionAllowed(false); 
  TableColumn column = uploadTable.getColumn("状态"); 
  column.setCellRenderer(new QueueTableCellRanderer()); 
  scrollPane.setViewportView(uploadTable); 
  cardLayout.layoutContainer(scrollPane); 
  add(scrollPane, "queue"); 
 } 
 
 /** 
  * 向上传队列的表格组件添加新任务的方法 
  * 
  * @param values 
  *   - 添加到表格的一行数据的数组对象 
  */ 
 public void addRow(final Object[] values) { 
  Runnable runnable = new Runnable() { 
   public void run() { 
    model.insertRow(0, values); // 向表格的数据模型添加数据 
   } 
  }; 
  if (SwingUtilities.isEventDispatchThread()) 
   runnable.run(); // 在事件队列执行 
  else 
   SwingUtilities.invokeLater(runnable); // 或有事件队列调用 
 } 
}

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6. Implementation of the download queue window

package com.oyp.ftp.panel.queue; 
 
import java.awt.CardLayout; 
 
import javax.swing.JPanel; 
import javax.swing.JScrollPane; 
import javax.swing.JTable; 
import javax.swing.SwingUtilities; 
import javax.swing.table.DefaultTableModel; 
import javax.swing.table.TableColumn; 
 
import com.oyp.ftp.panel.QueueTableCellRanderer; 
import com.oyp.ftp.utils.ProgressArg; 
 
public class DownloadPanel extends JPanel { 
 private JTable downloadTable = new JTable(); 
 private JScrollPane scrollPane = new JScrollPane(); 
 private DefaultTableModel model; 
 
 public DownloadPanel() { 
  CardLayout cardLayout = new CardLayout(); 
  setLayout(cardLayout); 
  ProgressArg progressArg = new ProgressArg(-1, -1, -1); 
  model = new DefaultTableModel(new Object[][] { new Object[] { "", "", 
    "", "", progressArg } }, new String[] { "文件名", "大小", "本地文件名", 
    "主机", "状态" }); 
  downloadTable.setModel(model); 
  downloadTable.getTableHeader().setReorderingAllowed(false); 
  downloadTable.setRowSelectionAllowed(false); 
  TableColumn column = downloadTable.getColumn("状态"); 
  column.setCellRenderer(new QueueTableCellRanderer()); 
  scrollPane.setViewportView(downloadTable); 
  cardLayout.layoutContainer(scrollPane); 
  add(scrollPane, "queue"); 
 } 
 
 public void addRow(final Object[] values) { 
  Runnable runnable = new Runnable() { 
   public void run() { 
    model.insertRow(0, values); 
   } 
  }; 
  if (SwingUtilities.isEventDispatchThread()) 
   runnable.run(); 
  else 
   SwingUtilities.invokeLater(runnable); 
 } 
}

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The specific changes in the following window after uploading and downloading

1. Adding the upload task

Use java to implement FTP upload and download queue window function (ftp software development 2)

##2. Completion of the upload task

Use java to implement FTP upload and download queue window function (ftp software development 2)

3. Addition of the download task

Use java to implement FTP upload and download queue window function (ftp software development 2)

4. Completion of the download task

Use java to implement FTP upload and download queue window function (ftp software development 2)

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