如何为java jtable创建鼠标双监听器

Question

我有 java jtable，我想在它上面使用鼠标双击事件，而且我有很多代码可以将侦听器粘贴到表格中，无法将其粘贴到我的代码中，并且在这里阅读数十个侦听器代码很累在那里，我是 Java 新手，需要更多耐心和轻松的直接帮助，而 stack 内部的一些专业人士没有给出或负担得起这些基本问题，我也感觉到了同样的情况，因为过去曾多次尝试对某些问题进行解释对我来说暗淡的代码我只作为帮助而投入了？！希望这次我能走运！ 最后，堆栈中所有可用的侦听器代码都使用设计器带来的表，而不是使用由代码创建的我的代码，不知道为什么这可能是我的主要问题。

  public  class JFband  extends javax.swing.JFrame  {
    Connection con1;
    Statement stmt1;
    ResultSet rs1;
    Connection con;
    Statement stmt;
    ResultSet rs;
    String fLag;
    DefaultTableModel tableModel;
    static String Bno;

            JTable  jTnameSearch = new JTable(tableModel);
     private TableRowSorter<TableModel> rowSorter
            = new TableRowSorter<>();


    // declare sorter to sort JTable data based on jTsearch Box field entry 


    public JFband() {

      this.setLayout(null);
     // here is the code with error :

      jTnameSearch.addMouseListener(new MouseAdapter(){ 
     @Override
     public void mouseClicked(MouseEvent e){
      if (e.getClickCount() == 2){
      JOptionPane.showMessageDialog(null, "the double click code is working");

        }
      }
     } );

      }

       }

     // listener for my jTable 

     @SuppressWarnings("unchecked")
     // <editor-fold defaultstate="collapsed"   desc="Generated                            Code">                          



    public  void LoadTable(){
                try {
            String host1= "jdbc:derby://localhost:1527/accountingsystem";
            String uName1="adamin";
            String uPass1="1234a1234b";
            String sql1;
            con1=DriverManager.getConnection(host1,uName1 ,uPass1);
            //String sql ="select * from log where password= jTuser.getText()  " ;
         if (fLag.equals("search"))
            sql1="select  band_name,band_no ,band_type from band order by band_no ";
           else
            sql1="select  band_name,band_no ,band_type from band where band_name='" +filterText.getText()+ "' order by band_no ";
            stmt1=con1.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
            rs=stmt1.executeQuery(sql1);
            int jCounter=0; 
            while (rs.next()){ jCounter++;
            }
  if (jCounter==0) 
     return;
         rs.beforeFirst();
                String[]   columnnames = {"اسم الحساب","رقم الحساب","نوع الحساب"};
               String Data[][]=new String[jCounter][3];
                  int j=0;
           while (rs.next()) {
        //    JOptionPane.showMessageDialog(null,  i+"فاصل   "+ jCounter);
               Data[j][0]=rs.getString("band_name"); 
           Data[j][1]=  rs.getString("band_no");
     Data[j][2]=  rs.getString("band_type");
              ++j;
                        }    
                    //   DefaultTableModel tableModel;
            tableModel = new DefaultTableModel(Data,columnnames);
           jTnameSearch = new JTable(tableModel) {   // القوس هذا جديد اضيف لعمل شرط عدم امكانية الكتابة 
               // في الجدول اصبح خمسة سطر 
            public boolean isCellEditable(int row, int col)  
            {  
         return false;  
            }  
        };
        //  انتهت دالة منع الكتابة 
           //only single selection mode
           jTnameSearch.setSelectionMode(0);
          rowSorter  = new TableRowSorter<>(jTnameSearch.getModel());
               jTnameSearch.setRowSorter(rowSorter);
                        jSpane3.setViewportView(jTnameSearch);
            jTnameSearch.setFillsViewportHeight(true);
            //jTnameSearch.setAutoCreateRowSorter(true); // enable sort and filter
              jPsearch.setVisible(true);
            jPanel2.setVisible(false);
            filterText.requestFocus();
            rs.close();
            fLag="text";
                 }

        catch (SQLException ex) {
            System.out.println(ex);
    }
    }

   }

Answer 1

我做了一个附加到 jtable 的点击事件：

    int ClickCount=0,selectedTodelete=-1;

    private void JTArticleJPAddArrticleMouseClicked(java.awt.event.MouseEvent evt) {                                                    

    if (ClickCount==1) {
        // your double click section code here
                 return;
    }else{
            if (selectedTodelete==JTArticleJPAddArrticle.getSelectedRow()) {
                ClickCount++;
              //here we are checking that the event is on the same row (double click on the same row)
        }else{

                ClickCount=0;
                selectedTodelete=JTArticleJPAddArrticle.getSelectedRow();
                // the new cell selected
        }

    }

    //one click event code here
}                                                   

我在任何地方制作双击事件的方式对我来说都非常有用

表实例化代码可以帮助您理解为什么不适合您

JTArticleJPAddArrticle = new javax.swing.JTable();

JTArticleJPAddArrticle.setBackground(new java.awt.Color(204, 204, 255));

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

},
new String [] {
    "Reference","Libellé","Marque","Type","Prix d'achat","Prix de vente","Quantité","Total","Etat"
   }
){
boolean[] canEdit = new boolean [] {
    false, false, false, false
};
public boolean isCellEditable(int rowIndex, int columnIndex) {
    return false;
    }
 });



 JTArticleJPAddArrticle.addMouseListener(new java.awt.event.MouseAdapter() {
   public void mouseClicked(java.awt.event.MouseEvent evt) {
        JTArticleJPAddArrticleMouseClicked(evt);// that a function called in the event mouseClicked
   }
 });

      jScrollPane8.setViewportView(JTArticleJPAddArrticle);