java JTable 的获取当前行号

1.使用鼠标监听事件

代码如下

JFrame jFrame=new JFrame();
        jFrame.setSize(400,100);
        String[] colnames={"","","","",""};
        Object[][] date={
                {"1","","","",""},
                {"2","","","",""},
                {"3","","","",""},
                {"4","","","",""}
        };
        JTable jTable=new JTable(date,colnames);
        jTable.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {
                int row = jTable.rowAtPoint(e.getPoint());
                // 在这里可以使用 row 变量获取当前行号
                System.out.println(row);   //添加事件或者输出
                //，默认是从0开始
            }
        });
        jFrame.add(jTable);
        jFrame.setDefaultCloseOperation(3);
        jFrame.setVisible(true);

运行结果如下

2.使用选择模型

在获取到当前行号后，将该行的数据显示在控制台，如下：

      	JFrame jFrame=new JFrame();
        jFrame.setSize(400,100);
        String[] colnames={"","","","",""};
        Object[][] date={
                {"1","","","",""},
                {"2","","","",""},
                {"3","","","",""},
                {"4","","","",""}
        };
        JTable jTable=new JTable(date,colnames);
		jTable.getSelectionModel().addListSelectionListener(new ListSelectionListener() {
            @Override
            public void valueChanged(ListSelectionEvent e) {
                if (!e.getValueIsAdjusting()) {
                    int selectedRow = jTable.getSelectedRow();
                    for (int col = 0; col < jTable.getColumnCount(); col++) {
                        Object value = jTable.getValueAt(selectedRow, col);
                        System.out.print(value + " ");         //添加事件或者输出
                    }
                    System.out.println();
                }
            }
        });
        jFrame.add(jTable);
        jFrame.setDefaultCloseOperation(3);
        jFrame.setVisible(true);

运行结果