刷新一个jtable而不显示结果不止一次

Question

我有一个通过单击按钮刷新的jtable。但每次我点击刷新按钮时，都会再次显示相同的结果。

*对于为例我第一次点击刷新JTable中显示的结果是：

名

姓

*我第二次点击刷新结果：

名称

姓氏

名称

姓

相同的结果是重复的。 即使我多次点击刷新按钮，我应该如何获得一次结果？

含有刷新按钮类：ModalityWorklist.java

import java.io.File; 
import java.io.FileInputStream; 
import java.io.IOException; 
import java.io.InputStream; 
import java.util.Properties; 
import javax.swing.JFrame; 
import javax.swing.JTable; 
import javax.swing.table.DefaultTableModel; 
import javax.swing.table.TableModel; 

/** 
* 
* @author Dell 
*/ 



public class ModalityWorklist extends javax.swing.JFrame { 
    private String[] args; 
    public static File file; 
    public static String Name; 
    public static String id; 
    public static Object[] row; 

    /** 
    * Creates new form ModalityWorklist 
    */ 
    public ModalityWorklist(){ 
     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() { 

     jScrollPane1 = new javax.swing.JScrollPane(); 
     modalityWorklist = new javax.swing.JTable(); 
     refresh = new javax.swing.JButton(); 
     ok = new javax.swing.JButton(); 

     setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); 

     modalityWorklist.setModel(new javax.swing.table.DefaultTableModel(
      new Object [][] { 

      }, 
      new String [] { 
       "Patient ID", "Patient Name" 
      } 
     ) { 
      boolean[] canEdit = new boolean [] { 
       false, false 
      }; 

      public boolean isCellEditable(int rowIndex, int columnIndex) { 
       return canEdit [columnIndex]; 
      } 
     }); 
     modalityWorklist.addMouseListener(new java.awt.event.MouseAdapter() { 
      public void mouseClicked(java.awt.event.MouseEvent evt) { 
       modalityWorklistMouseClicked(evt); 
      } 
     }); 
     jScrollPane1.setViewportView(modalityWorklist); 

     refresh.setText("refresh"); 
     refresh.addActionListener(new java.awt.event.ActionListener() { 
      public void actionPerformed(java.awt.event.ActionEvent evt) { 
       refreshActionPerformed(evt); 
      } 
     }); 

     ok.setText("OK"); 
     ok.addActionListener(new java.awt.event.ActionListener() { 
      public void actionPerformed(java.awt.event.ActionEvent evt) { 
       okActionPerformed(evt); 
      } 
     }); 

     javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane()); 
     getContentPane().setLayout(layout); 
     layout.setHorizontalGroup(
      layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) 
      .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup() 
       .addContainerGap() 
       .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING) 
        .addComponent(jScrollPane1, javax.swing.GroupLayout.Alignment.LEADING) 
        .addGroup(layout.createSequentialGroup() 
         .addGap(0, 451, Short.MAX_VALUE) 
         .addComponent(refresh))) 
       .addGap(23, 23, 23)) 
      .addGroup(layout.createSequentialGroup() 
       .addGap(221, 221, 221) 
       .addComponent(ok, javax.swing.GroupLayout.PREFERRED_SIZE, 69, javax.swing.GroupLayout.PREFERRED_SIZE) 
       .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)) 
     ); 
     layout.setVerticalGroup(
      layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) 
      .addGroup(layout.createSequentialGroup() 
       .addGap(12, 12, 12) 
       .addComponent(refresh) 
       .addGap(18, 18, 18) 
       .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 350, javax.swing.GroupLayout.PREFERRED_SIZE) 
       .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 16, Short.MAX_VALUE) 
       .addComponent(ok) 
       .addContainerGap()) 
     ); 

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

    private void refreshActionPerformed(java.awt.event.ActionEvent evt) {           
     // TODO add your handling code here: 
     GetMwl_3.main(args); 

    }          

    private void modalityWorklistMouseClicked(java.awt.event.MouseEvent evt) {            
     if(evt.getClickCount()==2){ 
     int i = modalityWorklist.getSelectedRow(); 
     TableModel model =modalityWorklist.getModel(); 
     id=model.getValueAt(i, 0).toString(); 
     Name=model.getValueAt(i, 1).toString(); 
     selectedPatient.main(args,Name,id); 
     } 
    }            

    private void okActionPerformed(java.awt.event.ActionEvent evt) {         
    dispose(); 
    }         

    /** 
    * @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(ModalityWorklist.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); 
     } catch (InstantiationException ex) { 
      java.util.logging.Logger.getLogger(ModalityWorklist.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); 
     } catch (IllegalAccessException ex) { 
      java.util.logging.Logger.getLogger(ModalityWorklist.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); 
     } catch (javax.swing.UnsupportedLookAndFeelException ex) { 
      java.util.logging.Logger.getLogger(ModalityWorklist.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 ModalityWorklist().setVisible(true); 
      } 
     }); 
    } 

    // Variables declaration - do not modify      
    private javax.swing.JScrollPane jScrollPane1; 
    public static javax.swing.JTable modalityWorklist; 
    private javax.swing.JButton ok; 
    private javax.swing.JButton refresh; 
    // End of variables declaration     
} 

该检索工作列表类：GetMwl_3.java

public class GetMwl_3 { 
private String[] args; 
    /** 
    * @param args 
    */ 
    public static void main(String[] args/*,String aet, String host, Integer port*/) { 
     new GetMwl_3(/*aet,host,port*/); 
    } 

    private static final int[] RETURN_KEYS = { 
     Tag.AccessionNumber, 
     Tag.ReferringPhysicianName, 
     Tag.PatientName, 
     Tag.PatientID, 
     Tag.PatientBirthDate, 
     Tag.PatientSex, 
     Tag.PatientWeight, 
     Tag.MedicalAlerts, 
     Tag.Allergies, 
     Tag.PregnancyStatus, 
     Tag.StudyInstanceUID, 
     Tag.RequestingPhysician, 
     Tag.RequestingService, 
     Tag.RequestedProcedureDescription, 
     Tag.AdmissionID, 
     Tag.SpecialNeeds, 
     Tag.CurrentPatientLocation, 
     Tag.PatientState, 
     Tag.RequestedProcedureID, 
     Tag.RequestedProcedurePriority, 
     Tag.PatientTransportArrangements, 
     Tag.PlacerOrderNumberImagingServiceRequest, 
     Tag.FillerOrderNumberImagingServiceRequest, 
     Tag.ConfidentialityConstraintOnPatientDataDescription, 
    }; 

    private static final int[] SPS_RETURN_KEYS = { 
     Tag.Modality, 
     Tag.RequestedContrastAgent, 
     Tag.ScheduledStationAETitle, 
     Tag.ScheduledProcedureStepStartDate, 
     Tag.ScheduledProcedureStepStartTime, 
     Tag.ScheduledPerformingPhysicianName, 
     Tag.ScheduledProcedureStepDescription, 
     Tag.ScheduledProcedureStepID, 
     Tag.ScheduledStationName, 
     Tag.ScheduledProcedureStepLocation, 
     Tag.PreMedication, 
     Tag.ScheduledProcedureStepStatus 
    }; 

    private static final String[] LE_TS = { 
     UID.ExplicitVRLittleEndian, 
     UID.ImplicitVRLittleEndian }; 

    private static final byte[] EXT_NEG_INFO_FUZZY_MATCHING = { 1, 1, 1 }; 

    private Device device; 
    private final NetworkApplicationEntity remoteAE = new NetworkApplicationEntity(); 
    private final NetworkConnection remoteConn = new NetworkConnection(); 
    private final NetworkApplicationEntity ae = new NetworkApplicationEntity(); 
    private final NetworkConnection conn = new NetworkConnection(); 
    private final DicomObject keys = new BasicDicomObject(); 
    private final DicomObject spsKeys = new BasicDicomObject(); 
    private Association assoc; 
    private int priority = 0; 
    private int cancelAfter = Integer.MAX_VALUE;//ÐœÐ°ÐºÑ ÐºÐ¾Ð»Ð¸Ñ‡ÐµÑтво Ñтрок 

    private boolean fuzzySemanticPersonNameMatching; 
    private Component emptyLabel; 

    public GetMwl_3(/*String aet, String host, Integer port*/) { 
     String name = "DCMMWL"; 
     device = new Device(name); 
     NewThreadExecutor executor = new NewThreadExecutor(name); 
     remoteAE.setInstalled(true); 
     remoteAE.setAssociationAcceptor(true); 
     remoteAE.setNetworkConnection(new NetworkConnection[] { remoteConn }); 

     device.setNetworkApplicationEntity(ae); 
     device.setNetworkConnection(conn); 
     ae.setNetworkConnection(conn); 
     ae.setAssociationInitiator(true); 
     ae.setAETitle(name); 
     for (int i = 0; i < RETURN_KEYS.length; i++) { 
      keys.putNull(RETURN_KEYS[i], null); 
     }   
     keys.putNestedDicomObject(Tag.RequestedProcedureCodeSequence, 
       new BasicDicomObject()); 
     keys.putNestedDicomObject(Tag.ScheduledProcedureStepSequence, spsKeys); 
     for (int i = 0; i < SPS_RETURN_KEYS.length; i++) { 
      spsKeys.putNull(SPS_RETURN_KEYS[i], null); 
     } 
     spsKeys.putNestedDicomObject(Tag.ScheduledProtocolCodeSequence, 
       new BasicDicomObject()); 

     ///////// 
     // remoteAE.setAETitle(aet); 
     // remoteConn.setHostname(host); 
     // remoteConn.setPort(port); 
     remoteAE.setAETitle("DCM4CHEE"); 
     remoteConn.setHostname("localhost"); 
     remoteConn.setPort(11112); 

     // addSpsMatchingKey(Tag.Modality, "CR"); 
     //addSpsMatchingKey(Tag.Modality, "CR"); 
//  addSpsMatchingKey(Tag.ScheduledProcedureStepStartDate,"20131030"); 
//  addSpsMatchingKey(Tag.ScheduledProcedureStepStartTime,"11111"); 

     setTransferSyntax(LE_TS); 

     long t1 = System.currentTimeMillis(); 
     try { 
      assoc = ae.connect(remoteAE, executor); 
     } catch (Exception e) { 
      System.err.println("ERROR: Failed to establish association:"); 
      e.printStackTrace(System.err); 
      System.exit(2); 
     } 

     long t2 = System.currentTimeMillis(); 
     System.out.println("Connected to " + remoteAE + " in " 
       + ((t2 - t1)/1000F) + "s"); 

     try { 
      List<DicomObject> result = query(); 
      long t3 = System.currentTimeMillis(); 

      System.out.println("Received " + result.size() 
        + " matching entries in " + ((t3 - t2)/1000F) + "s"); 



      for(DicomObject dcm : result) { 

       worklist.main(args, dcm.getString(Tag.PatientName), dcm.getString(Tag.PatientID)); 

      } 


     } catch (IOException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } catch (InterruptedException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } 
     try { 
      assoc.release(true); 
     } catch (InterruptedException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } 
     System.out.println("Released connection to " + remoteAE); 
    } 

    public void setTransferSyntax(String[] ts) { 
     TransferCapability tc = new TransferCapability(
       UID.ModalityWorklistInformationModelFIND, ts, 
       TransferCapability.SCU); 
     if (fuzzySemanticPersonNameMatching) 
      tc.setExtInfo(EXT_NEG_INFO_FUZZY_MATCHING); 
     ae.setTransferCapability(new TransferCapability[]{tc}); 
    } 

     public void addSpsMatchingKey(int tag, String value) { 
     spsKeys.putString(tag, null, value); 
    } 

    public List<DicomObject> query() throws IOException, InterruptedException { 
     TransferCapability tc = assoc.getTransferCapabilityAsSCU(
       UID.ModalityWorklistInformationModelFIND); 
     if (tc == null) { 
      throw new NoPresentationContextException(
        "Modality Worklist not supported by " 
        + remoteAE.getAETitle()); 
     } 
     //System.out.println("Send Query Request:"); 
     //System.out.println(keys.toString()); 
     DimseRSP rsp = assoc.cfind(UID.ModalityWorklistInformationModelFIND, 
       priority, keys, tc.getTransferSyntax()[0], cancelAfter); 
     List<DicomObject> result = new ArrayList<DicomObject>(); 
     while (rsp.next()) { 
      DicomObject cmd = rsp.getCommand(); 
      if (CommandUtils.isPending(cmd)) { 
       DicomObject data = rsp.getDataset(); 
       result.add(data); 
       //System.out.println("\nReceived Query Response #" 
         // + result.size() + ":"); 
       //System.out.println(data.toString()); 
      } 
     } 
     return result; 

    } 



} 

，这是添加的行到JTable类： worklist.java

import javax.swing.table.DefaultTableModel; 

/** 
* 
* @author Dell 
*/ 

public class worklist extends ModalityWorklist{ 
    public worklist(){ 

    } 
    public static void main(String[] args,String Name,String ID) { 

    DefaultTableModel model=(DefaultTableModel)modalityWorklist.getModel(); 
     model.setColumnIdentifiers(new String[]{"Patient ID","Patient Name"}); 
     row=new Object[2]; 
     row[0]=ID; 
     row[1]=Name; 
     model.addRow(row); 


    } 

} 

Answer 1

我已经删除了行，再次显示他们

int rowCount = model.getRowCount(); 
      for (int i = rowCount - 1; i >= 0; i--) { 
       model.removeRow(i); 
      } 

Answer 2

看起来像是在刷新表格时复制模型中的项目。您可以向我们展示您在刷新时执行的代码吗？

您的刷新按钮应该在JTable instace上调用fireTableDataChanged()。这应该是全部，如果你更新了模型，表格应该正确更新。