텍스트 파일을 읽고 JList로 가져 오겠습니까?

Question

텍스트 파일에서 데이터를 읽고 JList로 가져오고 여러 가지 문제를 겪고 있습니다. 내가 테스트를 위해이를 사용하고

String stringpath = "C:/StackOverflowQuestion.txt"; 
    Path path = Paths.get(stringpath, args); 

    List<String> readText = Files.readAllLines(path); 
    for (String elem : readText){ 
     System.out.println(elem); 
    } 

, 나는 파일의 내용도 콘솔 출력 창에 인쇄 얻을 수없는 것 : 여기에 지금까지 가지고있는 것입니다. 내가 뭘 놓치고 있니? 오류가 생성되지 않습니다.

편집 : 버튼 하나로 작업 할 수 있습니다. JFrame 클래스의 주요 메소드에서 어떻게 작동하지 않을까요?

편집 : 게시 전체 코드 :

/* 
* 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. 
*/ 
package Forms; 

import java.awt.Toolkit; 
import java.io.BufferedReader; 
import java.io.File; 
import java.io.FileInputStream; 
import java.io.FileNotFoundException; 
import java.io.FileReader; 
import java.io.IOException; 
import java.io.InputStream; 
import java.io.InputStreamReader; 
import java.nio.charset.Charset; 
import java.nio.file.Files; 
import java.nio.file.Path; 
import java.nio.file.Paths; 
import java.util.List; 
import java.util.logging.Level; 
import java.util.logging.Logger; 
import javax.swing.JOptionPane; 

/** 
* 
* 
*/ 
public class RemoteDesktop extends javax.swing.JFrame { 

    /** 
    * Creates new form Home 
    */ 
    public RemoteDesktop() { 
     initComponents(); 
     setLocationRelativeTo(null); 
     setIcon(); 
    } 

    /** 
    * 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() { 

     backButton = new javax.swing.JButton(); 
     connectButton = new javax.swing.JButton(); 
     jTextField1 = new javax.swing.JTextField(); 
     jLabel3 = new javax.swing.JLabel(); 
     jLabel2 = new javax.swing.JLabel(); 
     jLabel1 = new javax.swing.JLabel(); 
     jScrollPane1 = new javax.swing.JScrollPane(); 
     resultList = new javax.swing.JList<>(); 
     jMenuBar1 = new javax.swing.JMenuBar(); 
     jMenu1 = new javax.swing.JMenu(); 
     jMenuItem1 = new javax.swing.JMenuItem(); 

     setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); 
     setName("Home"); // NOI18N 
     setResizable(false); 
     setSize(new java.awt.Dimension(585, 360)); 

     backButton.setFont(new java.awt.Font("Monospaced", 0, 12)); // NOI18N 
     backButton.setText("Back"); 
     backButton.addActionListener(new java.awt.event.ActionListener() { 
      public void actionPerformed(java.awt.event.ActionEvent evt) { 
       backButtonActionPerformed(evt); 
      } 
     }); 

     connectButton.setText("Connect"); 
     connectButton.addActionListener(new java.awt.event.ActionListener() { 
      public void actionPerformed(java.awt.event.ActionEvent evt) { 
       connectButtonActionPerformed(evt); 
      } 
     }); 

     jLabel3.setText("Computer name or IP address:"); 

     jLabel2.setIcon(new javax.swing.ImageIcon(getClass().getResource("/Forms/Capture.PNG"))); // NOI18N 

     jLabel1.setText("Select a computer from the list below or type it in manually."); 

     jScrollPane1.setViewportView(resultList); 

     jMenu1.setText("File"); 

     jMenuItem1.setText("Exit"); 
     jMenuItem1.addActionListener(new java.awt.event.ActionListener() { 
      public void actionPerformed(java.awt.event.ActionEvent evt) { 
       jMenuItem1ActionPerformed(evt); 
      } 
     }); 
     jMenu1.add(jMenuItem1); 

     jMenuBar1.add(jMenu1); 

     setJMenuBar(jMenuBar1); 

     javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane()); 
     getContentPane().setLayout(layout); 
     layout.setHorizontalGroup(
      layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) 
      .addGroup(layout.createSequentialGroup() 
       .addContainerGap() 
       .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) 
        .addGroup(layout.createSequentialGroup() 
         .addComponent(backButton) 
         .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 129, Short.MAX_VALUE) 
         .addComponent(jLabel1)) 
        .addGroup(layout.createSequentialGroup() 
         .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 0, Short.MAX_VALUE) 
         .addGap(18, 18, 18) 
         .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) 
          .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false) 
           .addComponent(jTextField1, javax.swing.GroupLayout.Alignment.TRAILING) 
           .addComponent(connectButton, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) 
           .addComponent(jLabel2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)) 
          .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup() 
           .addComponent(jLabel3) 
           .addGap(41, 41, 41))))) 
       .addContainerGap()) 
     ); 
     layout.setVerticalGroup(
      layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) 
      .addGroup(layout.createSequentialGroup() 
       .addContainerGap() 
       .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) 
        .addComponent(backButton) 
        .addComponent(jLabel1)) 
       .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 24, Short.MAX_VALUE) 
       .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false) 
        .addGroup(layout.createSequentialGroup() 
         .addComponent(jLabel2, javax.swing.GroupLayout.PREFERRED_SIZE, 62, javax.swing.GroupLayout.PREFERRED_SIZE) 
         .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) 
         .addComponent(jLabel3) 
         .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) 
         .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) 
         .addGap(17, 17, 17) 
         .addComponent(connectButton, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)) 
        .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 226, javax.swing.GroupLayout.PREFERRED_SIZE)) 
       .addContainerGap(18, Short.MAX_VALUE)) 
     ); 

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

    private void backButtonActionPerformed(java.awt.event.ActionEvent evt) {           
     // TODO add your handling code here: 
     Home homeFrame = new Home(); 

     homeFrame.setVisible(true); 
     this.setVisible(false); 

    }           

    private void jMenuItem1ActionPerformed(java.awt.event.ActionEvent evt) {           
     // TODO add your handling code here: 
     this.dispose(); 
    }           

    private void connectButtonActionPerformed(java.awt.event.ActionEvent evt) {            
     // TODO add your handling code here: 
     try { 
      File file = new File("P:/IT/Shared Knowledge/FILE SHARE/computers.txt"); 
      FileReader fileReader = new FileReader(file); 
      BufferedReader bufferedReader = new BufferedReader(fileReader); 
      StringBuffer stringBuffer = new StringBuffer(); 
      String line; 
      while ((line = bufferedReader.readLine()) != null) { 
       stringBuffer.append(line); 
       stringBuffer.append("\n"); 
      } 
      fileReader.close(); 
      System.out.println("Contents of file:"); 
      System.out.println(stringBuffer.toString()); 
     } catch (IOException e) { 
      e.printStackTrace(); 
     } 


    }            
    private void setIcon() { 
     setIconImage(Toolkit.getDefaultToolkit().getImage(getClass().getResource("SelfService.png"))); 
    } 

    /** 
    * @param args the command line arguments 
    * @throws java.io.IOException 
    */ 
    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(RemoteDesktop.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); 
     } catch (InstantiationException ex) { 
      java.util.logging.Logger.getLogger(RemoteDesktop.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); 
     } catch (IllegalAccessException ex) { 
      java.util.logging.Logger.getLogger(RemoteDesktop.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); 
     } catch (javax.swing.UnsupportedLookAndFeelException ex) { 
      java.util.logging.Logger.getLogger(RemoteDesktop.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); 
     } 
     //</editor-fold> 
     //</editor-fold> 
     //</editor-fold> 
     //</editor-fold> 
     //</editor-fold> 
     //</editor-fold> 
     //</editor-fold> 
     //</editor-fold> 





     /* Create and display the form */ 
     java.awt.EventQueue.invokeLater(new Runnable() { 
      public void run() { 
       new RemoteDesktop().setVisible(true); 

      } 
     }); 
    } 

    // Variables declaration - do not modify      
    private javax.swing.JButton backButton; 
    private javax.swing.JButton connectButton; 
    private javax.swing.JLabel jLabel1; 
    private javax.swing.JLabel jLabel2; 
    private javax.swing.JLabel jLabel3; 
    private javax.swing.JMenu jMenu1; 
    private javax.swing.JMenuBar jMenuBar1; 
    private javax.swing.JMenuItem jMenuItem1; 
    private javax.swing.JScrollPane jScrollPane1; 
    private javax.swing.JTextField jTextField1; 
    private javax.swing.JList<String> resultList; 
    // End of variables declaration     
} 

Answer 1

이 파일을 형성 읽고 그것을 밖으로 인쇄해야합니다. 위의 코드는 mod입니다. 작업 디렉토리의 다른 파일 경로를 사용해야 할 수도 있습니다.

String stringpath = "C:/StackOverflowQuestion.txt"; 
    ArrayList<String> readText = new ArrayList<String>(); 
    try(BufferedReader br = new BufferedReader(new FileReader(stringpath))) 
    { 
     String temp =br.readLine(); 
     while(temp == null) 
     { 
      readText.add(temp); 
      temp =br.readLine(); 
     } 


    }catch(Exception e) 
    { 
     System.out.println(e.toString()); 
    } 
    for(int i =0;i<readText.size();i++) 
    { 
     System.out.println(readText.get(i)); 
    }