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在JTable上點擊右鍵并彈出菜單的實現(xiàn)

    String[] headers = {  "No", "Table Name"  };
    Object[][] cellData = null;

    DefaultTableModel model = new DefaultTableModel(cellData, headers) {
      public boolean isCellEditable(int row, int column) {
        // 第N列可以編輯
        /*
         * if (column == N) { return false; }
         */

        // 整個表都不能編輯
        return false;
      }
    };

    table = new JTable(model);

2.菜單的建立
    popupMenu=new JPopupMenu();
   
    tableNameItem=new JMenuItem("");
    selectItem=new JMenuItem("Select SQL");
    insertItem=new JMenuItem("Insert SQL");
    deleteItem=new JMenuItem("Delete SQL");
    updateItem=new JMenuItem("Update SQL");
    hbmItem=new JMenuItem("hbm xml");
    hbmPojoItem=new JMenuItem("Pojo Class");
   
    popupMenu.add(tableNameItem);
    popupMenu.addSeparator();
    popupMenu.add(selectItem);
    popupMenu.add(insertItem);
    popupMenu.add(deleteItem);
    popupMenu.add(updateItem);
    popupMenu.addSeparator();
    popupMenu.add(hbmItem);
    popupMenu.add(hbmPojoItem);

3.菜單的彈出處理
          table.addMouseListener(new MouseAdapter() {
          public void mousePressed(MouseEvent evt) {
              if (evt.isPopupTrigger()) { 
                // 取得右鍵點擊所在行
              int row=evt.getY()/table.getRowHeight();
             
              /**
               * 取得是表名的那一列
               */
              int tableNameColumn=-1;
             
              for(int i=0;i<table.getColumnModel().getColumnCount();i++){
                TableColumn selColumn = table.getColumnModel().getColumn(i);
                String columnHeader=(String)selColumn.getHeaderValue();
               
                if(columnHeader.equals("Table Name")){
                  tableNameColumn=i;
                  break;
                }
              }
             
              /**
               * 取得表名并彈出菜單
               */
              if(tableNameColumn!=-1){
                /**
                 * 修改菜單首條的名稱
                 */
                String tableName=(String)table.getValueAt(row,tableNameColumn);
                tableNameItem.setText(tableName);
               
                // 彈出菜單
                popupMenu.show(evt.getComponent(), evt.getX(), evt.getY());
              }
              }
          }
      }
        
4.實現(xiàn)的效果如下:

posted on 2007-06-12 22:23 sitinspring 閱讀(8159) 評論(1)  編輯  收藏 所屬分類: Swing