mainframe.java

java EJB 编程源代码。

package readfileprocessbarbean;

/* 这是一个主界面 */
import java.awt.*;
import com.borland.jbcl.layout.*;
import javax.swing.*;
import javax.swing.border.*;
import java.awt.event.*;
import java.beans.*;
import java.io.*;

public class MainFrame extends Frame implements PropertyChangeListener
{
  /* 引用PropertyChangeListener接口，构架JavaBean关联属性监听器 */
  XYLayout xYLayout1 = new XYLayout();
  JLabel jLabel1 = new JLabel();
  Border border1;
  JPanel jPanel1 = new JPanel();
  Border border2;
  TitledBorder titledBorder1;
  Border border3;
  XYLayout xYLayout2 = new XYLayout();
  JLabel jLabel2 = new JLabel();
  JLabel jLabel3 = new JLabel();
  JButton jButton1 = new JButton();
  JPanel jPanel2 = new JPanel();
  Border border4;
  TitledBorder titledBorder2;
  Border border5;
  JProgressBar jProgressBar1 = new JProgressBar();
  XYLayout xYLayout3 = new XYLayout();
  Border border6;
  JPanel jPanel3 = new JPanel();
  Border border7;
  TitledBorder titledBorder3;
  Border border8;
  XYLayout xYLayout4 = new XYLayout();
  JButton jButton2 = new JButton();
  JButton jButton3 = new JButton();
  JScrollPane jScrollPane1 = new JScrollPane();
  JTextArea jTextArea1 = new JTextArea();
  JButton jButton4 = new JButton();
  Timer timer = null;
  FileNamePathBean filenamepathbean = new FileNamePathBean();   // 定义FileNamePathBean的实例对象
  maxIntervalTimeBean maxintervaltimebean = new maxIntervalTimeBean();  //定义maxIntervalTimeBean实例对象
  String newFileNamePathValue = null;   // 存放文件名和路径
  int newIntervalTimeValue = -1;        // 存放进度条的最大间隔时间
  BufferedReader file = null;
  int TotalLength = -1;                 // 文件的总行数
  int i = 0;
  String str = null;
  String outputStr = null;

  public MainFrame()
  {
    try
    {
      jbInit();
    }
    catch(Exception e)
    {
      e.printStackTrace();
    }
  }
  public static void main(String[] args)
  {
    MainFrame mainFrame = new MainFrame();
    mainFrame.setLocation(150,80);
    mainFrame.setSize(421,400);
    mainFrame.show();
  }
  private void jbInit() throws Exception
  {
    border1 = BorderFactory.createCompoundBorder(BorderFactory.createLineBorder(new Color(118, 150, 255),1),BorderFactory.createEmptyBorder(1,1,1,1));
    border2 = BorderFactory.createLineBorder(new Color(79, 223, 184),1);
    titledBorder1 = new TitledBorder(border2,"选择文件所在的路径");
    border3 = BorderFactory.createCompoundBorder(titledBorder1,BorderFactory.createEmptyBorder(1,1,1,1));
    border4 = BorderFactory.createLineBorder(new Color(255, 138, 255),1);
    titledBorder2 = new TitledBorder(border4,"文件读取进度");
    border5 = BorderFactory.createCompoundBorder(titledBorder2,BorderFactory.createEmptyBorder(1,1,1,1));
    border6 = BorderFactory.createLineBorder(SystemColor.textText,2);
    border7 = BorderFactory.createLineBorder(new Color(203, 118, 39),1);
    titledBorder3 = new TitledBorder(border7,"文件内容");
    border8 = BorderFactory.createCompoundBorder(titledBorder3,BorderFactory.createEmptyBorder(1,1,1,1));
    jLabel1.setFont(new java.awt.Font("Dialog", 0, 16));
    jLabel1.setBorder(border1);
    jLabel1.setHorizontalAlignment(SwingConstants.CENTER);
    jLabel1.setText("一个显示文件读取进度的JavaBean实例");
    xYLayout1.setWidth(404);
    xYLayout1.setHeight(365);
    this.setBackground(SystemColor.info);
    this.setTitle("一个显示文件读取进度的JavaBean实例");
    this.setLayout(xYLayout1);
    jPanel1.setBackground(SystemColor.info);
    jPanel1.setBorder(border3);
    jPanel1.setLayout(xYLayout2);
    jLabel2.setFont(new java.awt.Font("Dialog", 0, 12));
    jLabel2.setText("文件路径：");
    jLabel3.setBackground(Color.white);
    jLabel3.setFont(new java.awt.Font("Dialog", 0, 12));
    jLabel3.setOpaque(true);
    jLabel3.setHorizontalAlignment(SwingConstants.LEFT);
    jLabel3.setHorizontalTextPosition(SwingConstants.LEFT);
    jLabel3.setText("                        （选择路径）");
    jButton1.setFont(new java.awt.Font("Monospaced", 0, 15));
    jButton1.setHorizontalTextPosition(SwingConstants.CENTER);
    jButton1.setText("...");
    jButton1.setVerticalAlignment(SwingConstants.BOTTOM);
    jButton1.setVerticalTextPosition(SwingConstants.BOTTOM);
    jButton1.addActionListener(new MainFrame_jButton1_actionAdapter(this));
    jPanel2.setBackground(SystemColor.info);
    jPanel2.setBorder(border5);
    jPanel2.setLayout(xYLayout3);
    jProgressBar1.setBackground(Color.white);
    jProgressBar1.setForeground(new Color(0, 255, 151));
    jProgressBar1.setBorder(BorderFactory.createLineBorder(Color.black));
    jProgressBar1.setDoubleBuffered(true);
    jProgressBar1.setStringPainted(true);
    jPanel3.setBackground(SystemColor.info);
    jPanel3.setBorder(border8);
    jPanel3.setLayout(xYLayout4);
    jButton2.setFont(new java.awt.Font("Dialog", 0, 13));
    jButton2.setText("运     行");
    jButton2.addActionListener(new MainFrame_jButton2_actionAdapter(this));
    jButton3.setFont(new java.awt.Font("Dialog", 0, 13));
    jButton3.setText("退     出");
    jButton3.addActionListener(new MainFrame_jButton3_actionAdapter(this));
    jTextArea1.setFont(new java.awt.Font("Dialog", 0, 11));
    jTextArea1.setEditable(false);
    jButton4.setFont(new java.awt.Font("Dialog", 0, 13));
    jButton4.setActionCommand("设置进度");
    jButton4.setText("参数设置");
    jButton4.addActionListener(new MainFrame_jButton4_actionAdapter(this));
    this.add(jPanel1,        new XYConstraints(19, 57, 368, 62));
    jPanel1.add(jLabel2,  new XYConstraints(15, 3, -1, -1));
    jPanel1.add(jLabel3,     new XYConstraints(81, 3, 218, -1));
    jPanel1.add(jButton1,    new XYConstraints(310, 1, 36, 22));
    this.add(jPanel2,    new XYConstraints(21, 131, 365, 53));
    jPanel2.add(jProgressBar1,      new XYConstraints(15, 0, 326, 22));
    this.add(jPanel3,   new XYConstraints(23, 199, 360, 115));
    jPanel3.add(jScrollPane1,  new XYConstraints(12, 0, 328, 84));
    jScrollPane1.getViewport().add(jTextArea1, null);
    this.add(jLabel1, new XYConstraints(18, 13, 366, 27));
    this.add(jButton4, new XYConstraints(51, 324, -1, -1));
    this.add(jButton3,  new XYConstraints(285, 324, -1, -1));
    this.add(jButton2,   new XYConstraints(171, 324, -1, -1));
    this.add(filenamepathbean,null);        // 添加FileNamepathBean的实例对象
    filenamepathbean.addPropertyChangeListener(this); // 梆定事件监听器
    this.add(maxintervaltimebean,null);
    maxintervaltimebean.addPropertyChangeListener(this);
  }

  void jButton1_actionPerformed(ActionEvent e)
  {
   /* 调用FileNamePathBean来获取文件名和文件路径 */
   filenamepathbean.setFileNameAndPath();
  }

  void jButton3_actionPerformed(ActionEvent e)
  {
   /* 退出应用程序 */
   System.exit(0);
  }

  public void propertyChange(PropertyChangeEvent e)
  {
   /* 实现关联属性的propertyChange方法 */
   String source = e.getPropertyName();
   if(source.equals("fileNameAndPath"))
    {
     /* 获取已经改变的属性值 */
     newFileNamePathValue = (String)e.getNewValue();
     jLabel3.setText(newFileNamePathValue);
    }
   if(source.equals("maxIntervalTimeValue"))
    {
     /* 获取已经改变的属性值 */
     newIntervalTimeValue = maxintervaltimebean.getmaxIntervalTimeValue();
    }
  }

  public Action BeginRunning()
  {
   /* 进度的监控和文件打印 */
   return new AbstractAction()
   {
    public void actionPerformed(ActionEvent e)
    {
     try
      {
       if(TotalLength != 0)
         {
          /* 计算进度条的偏移量 */
         if(jProgressBar1.getValue() < jProgressBar1.getMaximum())
           {
            jProgressBar1.setValue(jProgressBar1.getValue() + 1);
            jTextArea1.append(outputStr.substring(i, i + 1));
            i++;
           }
         else
           {
           if(timer != null)
             {
              timer.stop();
              timer = null;
              TotalLength = -1;
              i = 0;
              str = null;
              outputStr = null;
              JOptionPane.showMessageDialog(null,"文件读取完成！","完成啦!",1);
              jProgressBar1.setValue(0);
              jProgressBar1.setMaximum(0);
             }
           }
         }
      }
     catch(Exception err)
      {System.out.println(err);}
    }
   };
  }

  void jButton2_actionPerformed(ActionEvent e)
  {
   /* 开始显示文件读取进度 */
   if(newFileNamePathValue.length() > 1 && newFileNamePathValue != null && !(newFileNamePathValue.equals("unknown")) && newIntervalTimeValue != -1)
    {
     /* 实现进度监控 */
     try
     {
      TotalLength = 0;
      file = new BufferedReader(new FileReader(newFileNamePathValue.trim()));
      while((str = file.readLine()) != null)
      {
       /* 读取文件的 */
       outputStr = (outputStr == null) ? str + "\n" : outputStr +  "\n" + str;
      }
      TotalLength = outputStr.length();   // 文件总长度
      jProgressBar1.setMaximum(TotalLength);
      if(timer == null)
        {
         timer = new Timer(newIntervalTimeValue,BeginRunning());
         timer.start();
        }
     }
     catch(IOException err)
      {
       JOptionPane.showMessageDialog(null,"文件读取出错！","出错啦!",0);
      }
    }
  else
    {
     JOptionPane.showMessageDialog(null,"请正确输入文件名称和路径以及进度条的最大边界值！","出错啦!",0);
    }
  }

  void jButton4_actionPerformed(ActionEvent e)
  {
   /* 定义进度条最大间隔时间 */
   maxintervaltimebean.setmaxIntervalTimeValue();
  }
}

class MainFrame_jButton1_actionAdapter implements java.awt.event.ActionListener
{
  MainFrame adaptee;

  MainFrame_jButton1_actionAdapter(MainFrame adaptee)
  {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e)
  {
    adaptee.jButton1_actionPerformed(e);
  }
}

class MainFrame_jButton3_actionAdapter implements java.awt.event.ActionListener
{
  MainFrame adaptee;

  MainFrame_jButton3_actionAdapter(MainFrame adaptee)
  {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e)
  {
    adaptee.jButton3_actionPerformed(e);
  }
}

class MainFrame_jButton2_actionAdapter implements java.awt.event.ActionListener
{
  MainFrame adaptee;

  MainFrame_jButton2_actionAdapter(MainFrame adaptee)
  {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e)
  {
    adaptee.jButton2_actionPerformed(e);
  }
}

class MainFrame_jButton4_actionAdapter implements java.awt.event.ActionListener
{
  MainFrame adaptee;

  MainFrame_jButton4_actionAdapter(MainFrame adaptee)
  {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e)
  {
    adaptee.jButton4_actionPerformed(e);
  }
}