Question

我有一个JTable，我使用整数比较器和TableRowSorter trs.setComparator(columnIndex, new IntComparator())和table.setRowSorter(trs)排序。

排序按预期工作但是我点击鼠标时使用int row = table.rowAtPoint(e.getPoint())和DefaultTabelModel mod = (DefaultTableModel)table.getModel()来获取使用mod.getValueAt(row, 0)选择的行的值。

这将获取JTable原始排序中此位置的行的值，而不是排序后现在的行。如何使这个工作也适用于排序表？

由于

编辑：示例代码

import javax.swing.*;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableRowSorter;
import java.awt.*;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.Comparator;

public class Test extends JFrame{
    JTable table = new JTable();
    JPanel panel = new JPanel();

    public Test() {
        add(panel);
        pack();
        setResizable(false);
        setVisible(true);
        setSize(1280, 720);
        setupTable();
    }
    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                new Test();
            }
        });
    }
    public void setupTable() {

        Object[][] data = new Object[][]{
                {1, 15, 17},
                {2, 45, 7},
                {3, 9, 26},
                {4, 65, 65}
        };
        Object[] columns = new Object[]{"ID", "X", "Y"};

        table = new JTable(new DefaultTableModel(data, columns) {
            @Override
            public boolean isCellEditable(int row, int column) {
                return false;
            }
        });

        table.setPreferredScrollableViewportSize(new Dimension(720, 400));
        table.setFillsViewportHeight(true);
        JScrollPane scrollPane = new JScrollPane(table);
        panel.add(scrollPane);
        TableRowSorter<DefaultTableModel> trs = new TableRowSorter(table.getModel());


        class IntComparator implements Comparator {
            public int compare(Object o1, Object o2) {
                Integer int1 = (Integer) o1;
                Integer int2 = (Integer) o2;
                return int1.compareTo(int2);
            }

            public boolean equals(Object o2) {
                return this.equals(o2);
            }
        }
        for (int i = 0; i < 3; i++) {
            trs.setComparator(i, new IntComparator());
        }
        table.setRowSorter(trs);
        table.setAutoCreateRowSorter(false);

        table.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {
                int row = table.rowAtPoint(e.getPoint());
                if (0 <= row && row <= table.getRowCount()) {
                    DefaultTableModel mod = (DefaultTableModel) table.getModel();
                    String ID = String.valueOf(mod.getValueAt(trs.convertRowIndexToView(row), 0));
                    System.out.println(ID);
                }
            }
        });
    }
}

Answer 1

查看功能： JTable#convertRowIndexToModel(int) 和 JTable#convertRowIndexToView(int)

您需要将从rowAtPoint获得的行转换为使用JTable#convertRowIndexToView(int)

显示的行

Answer 2

正确使用mod.getValueAt(trs.convertRowIndexToModel(row), 0)代替mod.getValueAt(trs.convertRowIndexToView(row), 0)个已选择的排序行。

谢谢searchengine27

JTable排序 - 选择一行

2 个答案: