Swingworker 업데이트 중이 아닌 대화 상자가 잠 깁니다.

Question

여기에 올바른 질문을하고 있지만 추가 정보가 필요하시면 언제든지 알려주십시오. 텍스트 영역에서 코드 조각을 처리하는 Java 프로그램을 작성하려고합니다. 프로그램은 내가 기대하는 바를 정확히 수행하지만 시간이 걸릴 수 있으므로 업데이트 할 대화 상자에 JProgressBar를 넣을 수 있습니다. 나는

• 전체 JFrame의 클래스는 작업의 서브 클래스를 가지고 ... 진행률 표시 줄에 오라클 샘플을 검토하고이 어디 충분히 간단한 예제를 사용 http://docs.oracle.com/javase/tutorial/uiswing/components/progress.html

  의 예와 같이 뭔가를 시도하고 그 연장자 스윙 워커. Swingworker 클래스 (Task)는 doinBackground() 메서드를 사용하여 백그라운드에서 작업을 실행합니다.

• 진도는 setProgress() 방법을 사용하여 업데이트됩니다. ProgressBarDemo 전화 Task, 그것은 자신의 작업에 propertychangelistener과 연관 때
• 주요 JFrame의 작업은, 내가 그것을 이해 propertychangelistener

그래서 구현 Task 전화 setprogress() 데이터 변경은 ProgressBarDemo의 propertyChange(evt) 방법에 방송됩니다.

그리고 예로서 완벽하게 작동합니다. 이 예에서 알 수있는 바와 같이

public class ProgressBarDemo extends JPanel 
    implements ActionListener, 
    PropertyChangeListener { 

private JProgressBar progressBar; 
private JButton startButton; 
private JTextArea taskOutput; 
private Task task; 

class Task extends SwingWorker<Void, Void> { 
    /* 
    * Main task. Executed in background thread. 
    */ 

    @Override 
    public Void doInBackground() { 
     Random random = new Random(); 
     int progress = 0; 
     //Initialize progress property. 
     setProgress(0); 
     while (progress < 100) { 
      //Sleep for up to one second. 
      try { 
       Thread.sleep(random.nextInt(1000)); 
      } catch (InterruptedException ignore) { 
      } 
      //Make random progress. 
      progress += random.nextInt(10); 
      setProgress(Math.min(progress, 100)); 
     } 
     return null; 
    } 

    /* 
    * Executed in event dispatching thread 
    */ 
    @Override 
    public void done() { 
     Toolkit.getDefaultToolkit().beep(); 
     startButton.setEnabled(true); 
     setCursor(null); //turn off the wait cursor 
     taskOutput.append("Done!\n"); 
    } 
} 

public ProgressBarDemo() { 
    super(new BorderLayout()); 

    //Create the demo's UI. 
    startButton = new JButton("Start"); 
    startButton.setActionCommand("start"); 
    startButton.addActionListener(this); 

    progressBar = new JProgressBar(0, 100); 
    progressBar.setValue(0); 
    progressBar.setStringPainted(true); 

    taskOutput = new JTextArea(5, 20); 
    taskOutput.setMargin(new Insets(5, 5, 5, 5)); 
    taskOutput.setEditable(false); 

    JPanel panel = new JPanel(); 
    panel.add(startButton); 
    panel.add(progressBar); 

    add(panel, BorderLayout.PAGE_START); 
    add(new JScrollPane(taskOutput), BorderLayout.CENTER); 
    setBorder(BorderFactory.createEmptyBorder(20, 20, 20, 20)); 

} 

/** 
* Invoked when the user presses the start button. 
*/ 
public void actionPerformed(ActionEvent evt) { 
    startButton.setEnabled(false); 
    setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR)); 
    //Instances of javax.swing.SwingWorker are not reusuable, so 
    //we create new instances as needed. 
    task = new Task(); 
    task.addPropertyChangeListener(this); 
    task.execute(); 
} 

/** 
* Invoked when task's progress property changes. 
*/ 
public void propertyChange(PropertyChangeEvent evt) { 
    if ("progress" == evt.getPropertyName()) { 
     int progress = (Integer) evt.getNewValue(); 
     progressBar.setValue(progress); 
     taskOutput.append(String.format(
       "Completed %d%% of task.\n", task.getProgress())); 
    } 
} 

/** 
* Create the GUI and show it. As with all GUI code, this must run on the 
* event-dispatching thread. 
*/ 
private static void createAndShowGUI() { 
    //Create and set up the window. 
    JFrame frame = new JFrame("ProgressBarDemo"); 
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 

    //Create and set up the content pane. 
    JComponent newContentPane = new ProgressBarDemo(); 
    newContentPane.setOpaque(true); //content panes must be opaque 
    frame.setContentPane(newContentPane); 

    //Display the window. 
    frame.pack(); 
    frame.setVisible(true); 
} 

public static void main(String[] args) { 
    //Schedule a job for the event-dispatching thread: 
    //creating and showing this application's GUI. 
    javax.swing.SwingUtilities.invokeLater(new Runnable() { 
     public void run() { 
      createAndShowGUI(); 
     } 
    }); 
} 
} 

, 재 검증의 인스턴스() (무효) (칠) 등이없는 모든 것을는, 그러나, 나는 나의 변화를 위해이 방법을 다시 시도해야으로 실행 그래픽이 업데이트되지 않습니다.

나는 콘솔에 출력하고 있는데,이 출력은 예상 한 것입니다.하지만 내가 무엇을해도 JProgressBar를 업데이트 할 수 없습니다. JProgressbar를 증가시키기위한 버튼을 포함 시키면 JProgressbar가 업데이트되지만 JProgressbar를 실행하면 JProgressbar가 revalidate() 등을 포함해도 더 이상 그래픽으로 응답하지 않습니다.

메서드, JProgressbar의 값에 대한 chjeck 전후에 올바른 값이 포함될 때마다 ... 대화 상자가 업데이트되지 않습니다.

도움이 ... 주세요!

/* 
* To change this template, choose Tools | Templates 
* and open the template in the editor. 
*/ 
package db_udt_searchandreplacetest; 

import Model.VariableListProcessor; 
import java.awt.event.ActionEvent; 
import java.awt.event.ActionListener; 
import java.beans.PropertyChangeEvent; 
import java.beans.PropertyChangeListener; 

/** 
* 
* @author Alan Curley 
*/ 
public class Dialog1 extends javax.swing.JFrame 
     implements ActionListener, 
     PropertyChangeListener { 

    /** 
    * Creates new form Dialog1 
    */ 
    public Dialog1() { 
     initComponents(); 
    } 

    /** 
    * This method is called from within the constructor to initialize the form. 
    * WARNING: Do NOT modify this code. The content of this method is always 
    * regenerated by the Form Editor. 
    */ 
    @SuppressWarnings("unchecked") 
    // <editor-fold defaultstate="collapsed" desc="Generated Code">       
    private void initComponents() { 

     jSeparator1 = new javax.swing.JSeparator(); 
     jScrollPane1 = new javax.swing.JScrollPane(); 
     SourceCode = new javax.swing.JTextArea(); 
     goButton = new javax.swing.JButton(); 
     jProgressBar1 = new javax.swing.JProgressBar(); 
     updateTheFlippingProgressBar = new javax.swing.JButton(); 

     setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); 

     SourceCode.setColumns(20); 
     SourceCode.setFont(new java.awt.Font("Corbel", 0, 13)); // NOI18N 
     SourceCode.setRows(5); 
     SourceCode.setText("Paste Source code here."); 
     jScrollPane1.setViewportView(SourceCode); 

     goButton.setText("GO"); 
     goButton.addActionListener(new java.awt.event.ActionListener() { 
      public void actionPerformed(java.awt.event.ActionEvent evt) { 
       goButtonActionPerformed(evt); 
      } 
     }); 

     jProgressBar1.setStringPainted(true); 

     updateTheFlippingProgressBar.setText("UTFPB"); 
     updateTheFlippingProgressBar.addActionListener(new java.awt.event.ActionListener() { 
      public void actionPerformed(java.awt.event.ActionEvent evt) { 
       updateTheFlippingProgressBarActionPerformed(evt); 
      } 
     }); 

     javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane()); 
     getContentPane().setLayout(layout); 
     layout.setHorizontalGroup(
      layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) 
      .addComponent(jSeparator1) 
      .addGroup(layout.createSequentialGroup() 
       .addContainerGap() 
       .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) 
        .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 380, Short.MAX_VALUE) 
        .addGroup(layout.createSequentialGroup() 
         .addComponent(goButton) 
         .addGap(18, 18, 18) 
         .addComponent(jProgressBar1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)) 
        .addGroup(layout.createSequentialGroup() 
         .addComponent(updateTheFlippingProgressBar) 
         .addGap(0, 0, Short.MAX_VALUE))) 
       .addContainerGap()) 
     ); 
     layout.setVerticalGroup(
      layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) 
      .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup() 
       .addContainerGap() 
       .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 205, javax.swing.GroupLayout.PREFERRED_SIZE) 
       .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED) 
       .addComponent(jSeparator1, javax.swing.GroupLayout.PREFERRED_SIZE, 10, javax.swing.GroupLayout.PREFERRED_SIZE) 
       .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) 
       .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false) 
        .addComponent(goButton, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) 
        .addComponent(jProgressBar1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)) 
       .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) 
       .addComponent(updateTheFlippingProgressBar) 
       .addGap(5, 5, 5)) 
     ); 

     pack(); 
    }// </editor-fold>       

    /** 
    * This is the function called when the user presses the "GO" Button. 
    * @param evt 
    */ 
    private void goButtonActionPerformed(java.awt.event.ActionEvent evt) {           
     // Update the Progressbar to include a new Maximum count. 
     jProgressBar1.setMaximum(SourceCode.getLineCount()); 
     VariableListProcessor VPL = new VariableListProcessor(SourceCode); 
     VPL.addPropertyChangeListener(this); // Sdet this class (Dialog1) as the propertychange listener. 
     //java.awt.EventQueue.invokeLater(VPL); 
     VPL.execute(); 
     System.out.println("GO Pressed: "+String.valueOf(jProgressBar1.getValue())); 
    }           

    private void updateTheFlippingProgressBarActionPerformed(java.awt.event.ActionEvent evt) {                
     // TODO add your handling code here: 
     jProgressBar1.setValue(jProgressBar1.getValue()+1); 
     if(jProgressBar1.getValue()>99) 
      jProgressBar1.setValue(0); 
     this.validate(); 
     this.repaint(); 
     System.out.println("UTFPB Pressed: "+String.valueOf(jProgressBar1.getValue())); 
    }                

    /** 
    * @param args the command line arguments 
    */ 
    public static void main(String args[]) { 
     /* Set the Nimbus look and feel */ 
     //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) "> 
     /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel. 
     * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
     */ 
     try { 
      for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) { 
       if ("Nimbus".equals(info.getName())) { 
        javax.swing.UIManager.setLookAndFeel(info.getClassName()); 
        break; 
       } 
      } 
     } catch (ClassNotFoundException ex) { 
      java.util.logging.Logger.getLogger(Dialog1.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); 
     } catch (InstantiationException ex) { 
      java.util.logging.Logger.getLogger(Dialog1.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); 
     } catch (IllegalAccessException ex) { 
      java.util.logging.Logger.getLogger(Dialog1.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); 
     } catch (javax.swing.UnsupportedLookAndFeelException ex) { 
      java.util.logging.Logger.getLogger(Dialog1.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); 
     } 
     //</editor-fold> 

     /* Create and display the form */ 
     java.awt.EventQueue.invokeLater(new Runnable() { 
      public void run() { 
       new Dialog1().setVisible(true); 
      } 
     }); 
    } 
    // Variables declaration - do not modify      
    private javax.swing.JTextArea SourceCode; 
    private javax.swing.JButton goButton; 
    private javax.swing.JProgressBar jProgressBar1; 
    private javax.swing.JScrollPane jScrollPane1; 
    private javax.swing.JSeparator jSeparator1; 
    private javax.swing.JButton updateTheFlippingProgressBar; 
    // End of variables declaration     

    // called when an action is triggered. 
    @Override 
    public void actionPerformed(ActionEvent e) { 
     throw new UnsupportedOperationException("<<<< actionPerformed(): Not supported yet."); //To change body of generated methods, choose Tools | Templates. 
    } 

    // called when a property change being listened for is detected. 
    @Override 
    public void propertyChange(PropertyChangeEvent evt) { 
     //throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. 
     if ("progress" == evt.getPropertyName()) { 
      int progress = (Integer) evt.getNewValue();    
      jProgressBar1.setValue(progress);         
      System.out.println("P:"+String.valueOf(jProgressBar1.getValue())); 
      jProgressBar1.repaint(); 
     } 
    } 
} 

이 클래스는 다른 파일에 있습니다.

package Model; 


import java.util.ArrayList; 
import java.util.Arrays; 
import java.util.List; 
import javax.swing.*; 

/** 
* This is the swingworker class that will take the string object that contains 
* the source code and builds the VariableList object from the Data. 
* @author Alan Curley 
*/ 
public class VariableListProcessor extends SwingWorker<Void,Integer> { 
    JTextArea source; 
    Integer i = 0; 

    public VariableListProcessor(JTextArea source){ 
     this.source = source; 
     i = 0; 
    } 

    public void setSource(JTextArea source){ 
     this.source = source; 
    }  

    // This is the method that will be called in the background to allow the thread to run. 
    // We can update the progress property of the class to report back how it is working. 
    // Called when the "Execute" command is given??? 
    @Override 
    protected Void doInBackground() throws InterruptedException{   
     // it is here we set up the Loop to go through Source, line by line and translate the variables into something 
     // more meaningful. 
     // Clear the progress settings. 

     Integer percProgress;  
     i = 0; 
     //setProgress(0); 

     // build an Arraylist of Strings that represent each line in the source code. 
     ArrayList<String> sourceCodeList; 
     sourceCodeList = new ArrayList(); 
     sourceCodeList.addAll(Arrays.asList(source.getText().split("\\n"))); 

     for (String S:sourceCodeList){ 
      if(S.matches("TYPE\\W*UDT\\W+\\d+.*")) 
       System.out.println(S); 
      percProgress = ((++i)*100/source.getLineCount()); 
      publish(percProgress); 
      /*if(!(oldPercProgress.equals(percProgress))) 
      { 
       try{ /// 
       Thread.sleep(100); 
       /* 
       }catch(InterruptedException ignore){} 
       oldPercProgress = percProgress;     
      } */    
//   if(i.equals(269)) 
//    System.out.println(String.valueOf(i)+"\t"+S); 
     } 
     return null; 
     //throw new UnsupportedOperationException("<<<< VPL-doInBackground(): Not supported yet."); //To change body of generated methods, choose Tools | Templates. 
    } 

    @Override 
    protected void done(){ 
     System.out.println("Complete. :-)"); 
     JOptionPane.showMessageDialog(null, "Complete", "Complete", JOptionPane.INFORMATION_MESSAGE); 
     //throw new UnsupportedOperationException("<<<< VPL-done(): Not supported yet."); //To change body of generated methods, choose Tools | Templates. 
    } 

    @Override 
     // Can safely update the GUI from this method. 
     protected void process(List<Integer> chunks) { 
     // Here we receive the values that we publish(). 
     // They may come grouped in chunks. 
     int mostRecentValue = chunks.get(chunks.size()-1);   
     setProgress(mostRecentValue); 
    } 


} 

Answer 1

나는 내가 최대 계산이 원하는대로 ... 은 "goButtonActionPerformed() 메소드 '의 라인 jProgressBar1.setMaximum(SourceCode.getLineCount()); 원래 사용하지만 라인이 아닌 비율을 계산 발견 할 수 있습니다 생각 . "progress()"를 100으로 설정 한 후 "완료"메서드가 루틴을 호출하고 종료했습니다. 이것을 백분율로 다시 변경했지만 위의 행은 오류가 발생했습니다. 내가 이것을 제거했을 때, 지금은 괜찮습니다. 수업은 어쩌면 배웠나요?