添加jcheckBox到Jtable使用GUI

Question

在谷歌和stackoverflow中搜索後，並通過一些答案我仍然堅持這個問題。

我已經jtable，我從數據庫（derpy-JDBC）填充它。 我想添加複選框以我的JTable使用GUI ..我有零錢列類型爲布爾值，並添加這些行

JCheckBox checkBox = new javax.swing.JCheckBox(); 
jTable1.getColumn("status").setCellEditor(new DefaultCellEditor(checkBox)); 

，但它不能正常工作。 這個我嘗試

public class showp1 extends javax.swing.JFrame implements ActionListener { 

    /** Creates new form showp1 */ 
    public showp1() { 
     initComponents(); 
     this.setLocationRelativeTo(null); 
     jButton1.addActionListener(this); 
     jButton2.addActionListener(this); 
     jTextField1.addActionListener(this); 

    } 

    /** 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(); 
     jTable1 = new javax.swing.JTable(); 
     jButton1 = new javax.swing.JButton(); 
     jButton2 = new javax.swing.JButton(); 
     jTextField1 = new javax.swing.JTextField(); 

     setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); 
     addWindowListener(new java.awt.event.WindowAdapter() { 
      public void windowOpened(java.awt.event.WindowEvent evt) { 
       formWindowOpened(evt); 
      } 
     }); 

     jTable1.setModel(new javax.swing.table.DefaultTableModel(
      new Object [][] { 
       {null, null, null, null}, 
       {null, null, null, null}, 
       {null, null, null, null}, 
       {null, null, null, null} 
      }, 
      new String [] { 
       "id", "area", "location", "status" 
      } 
     ) { 
      Class[] types = new Class [] { 
       java.lang.Object.class, java.lang.Object.class, java.lang.Object.class, java.lang.Boolean.class 
      }; 

      public Class getColumnClass(int columnIndex) { 
       return types [columnIndex]; 
      } 
     }); 
     jScrollPane1.setViewportView(jTable1); 

     jButton1.setText("jButton1"); 

     jButton2.setText("jButton2"); 

     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(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) 
       .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) 
        .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 320, javax.swing.GroupLayout.PREFERRED_SIZE) 
        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) 
         .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup() 
          .addComponent(jButton1) 
          .addGap(73, 73, 73) 
          .addComponent(jButton2) 
          .addGap(166, 166, 166)) 
         .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup() 
          .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 375, javax.swing.GroupLayout.PREFERRED_SIZE) 
          .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)))) 
       .addGap(10, 10, 10)) 
     ); 
     layout.setVerticalGroup(
      layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) 
      .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup() 
       .addContainerGap() 
       .addComponent(jTextField1, javax.swing.GroupLayout.DEFAULT_SIZE, 23, Short.MAX_VALUE) 
       .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) 
       .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 155, javax.swing.GroupLayout.PREFERRED_SIZE) 
       .addGap(18, 18, 18) 
       .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) 
        .addComponent(jButton1) 
        .addComponent(jButton2)) 
       .addGap(64, 64, 64)) 
     ); 

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

private void formWindowOpened(java.awt.event.WindowEvent evt) {         

     myDbConnection dbconnect; 
     // TODO add your handling code here: 


       ArrayList<String> list = new ArrayList<String>(); 
     try { 

     dbconnect = new myDbConnection(); 
      ResultSet resultSet =null; 
      resultSet = dbconnect.excuteQuery("SELECT id, area,location, status1 FROM pledges "); 



       while (resultSet.next()){ 
        list.add(resultSet.getString(1)); 
        list.add(resultSet.getString(2)); 
        list.add(resultSet.getString(3)); 
        list.add(resultSet.getString(4)); 
       } 


     } catch (Exception e) { 
      System.out.println(e); 
     } 

     Object[][] record; 

     int myListCount = list.size()/4; 
     record = new Object[myListCount][4]; 
     int count = 1; 
     // JCheckBox checkBox = new javax.swing.JCheckBox(); 
     for (int ii = 1; ii<=myListCount;ii++) { 
      for(int i=1;i<=4;i++){ 
       record[ii-1][i-1] = list.get(count-1); 
       count++; 

      } 

     } 
     //TableColumnModel columnModel = jTable1.getColumnModel(); 
     //columnModel.getColumn(3).setCellEditor(new DefaultCellEditor(checkBox)); 

     jTable1.setModel(new DefaultTableModel(record, new String[]{"id", "area", "location","status1"}) { 
     @Override 
    public Class<?> getColumnClass(int columnIndex) { 
     if (getColumnName(columnIndex).equals("status1")) { 
      return Boolean.class; 
     } 
     return super.getColumnClass(columnIndex); 
    } 
    }); 


public static void main(String args[]) { 
     java.awt.EventQueue.invokeLater(new Runnable() { 
      public void run() { 
       new showp1().setVisible(true); 
      } 
     }); 
} } 

對不起，這個可怕的代碼^^」 由於事先

Answer 1

閱讀Oracle Swing JTable tutorial，你會看到，你不需要直接使用單元格渲染器或編輯器，你需要做的就是返回正確的Boolean.class列類，Swing將爲你提供正確的渲染器和編輯器，這是通過覆蓋TableModel的getColumnClass（int列）方法來完成的。

例如，

jTable1.setModel(new DefaultTableModel(record, new String[]{"id", "area", "location", 
    "status1"}) { 
    @Override 
    public Class<?> getColumnClass(int columnIndex) { 
     if (getColumnName(columnIndex).equals("status1")) { 
      return Boolean.class; 
     } 
     return super.getColumnClass(columnIndex); 
    } 
    }); 

請注意，對於此工作記錄，需要是Object [] []的2維數組，而不是String [] []，並且status1列必須保存布爾數據，而不是String數據，但是應該很容易讓您在嵌套for循環中填充記錄數組時解決問題。