Java 选中时显示JTable行的信息

选择时如何显示

JTable

行的信息

我将简要地解释我试图做什么，然后发布我创建的SSCCE，以防我的任何解释令人困惑

我希望能够单击表中的任何行，并在面板上显示该信息。我不确定我需要利用什么来完成这项工作

我想我需要使用：

• table.getSelectedRow（）

• MouseListener（）

• ListSelectionListener（）

我以前没有使用过监听器，所以我只通过阅读文章/文档了解到这些监听器，同时研究我需要做些什么来完成这项工作

对于如何在我的JPanel上显示信息，我也有点困惑。面板是在主类中创建的，而表是在其自己的类中创建的

我感谢任何帮助和建议。

示例来源：

import javax.swing.JFrame;
import javax.swing.JSplitPane;
import javax.swing.SwingUtilities;
import java.awt.BorderLayout;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableModel;

public class SwingTesting {

    private final JFrame frame;
    private final TablePane tablePane;
    private final JSplitPane splitPane;
    private final JPanel infoPanel;

    public SwingTesting() {
        tablePane = new TablePane();
        infoPanel = new JPanel();
        frame = new JFrame();

        splitPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, tablePane, infoPanel);

        frame.add(splitPane);
        frame.pack();
        frame.setVisible(true);
    }


    class TablePane extends JPanel {

        private final JTable table;
        private final TableModel tableModel;
        private final ListSelectionModel listSelectionModel;

    public TablePane() {
        table = new JTable();
        tableModel = createTableModel();
        table.setModel(tableModel);
        table.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);
        table.add(table.getTableHeader(), BorderLayout.PAGE_START);
        table.setFillsViewportHeight(true); 

        listSelectionModel = table.getSelectionModel();
        table.setSelectionModel(listSelectionModel);
        listSelectionModel.addListSelectionListener(new SharedListSelectionHandler());
        table.setSelectionModel(listSelectionModel);

        this.setLayout(new GridBagLayout());
    GridBagConstraints gbc = new GridBagConstraints();
    gbc.anchor = GridBagConstraints.NORTHWEST;
    gbc.fill = GridBagConstraints.BOTH;
    gbc.gridx = 0;
    gbc.gridy = 0;
    gbc.gridheight = 1;
    gbc.gridwidth = 3;
    gbc.insets = new Insets(5, 5, 5, 5);
    gbc.ipadx = 2;
    gbc.ipady = 2;
    gbc.weightx = 1;
    gbc.weighty = 1;
        this.add(new JScrollPane(table), gbc);
    }

    private TableModel createTableModel() {
        DefaultTableModel model = new DefaultTableModel(
            new Object[] {"Car", "Color", "Year"}, 0 
        ){
            @Override 
            public boolean isCellEditable(int row, int column) {
                return false;
            }
        };

        addTableData(model);
        return model;
    }

    private void addTableData(DefaultTableModel model) {
        model.addRow(new Object[] {"Nissan", "Black", "2007"});
        model.addRow(new Object[] {"Toyota", "Blue", "2012"});
        model.addRow(new Object[] {"Chevrolet", "Red", "2009"});
        model.addRow(new Object[] {"Scion", "Silver", "2005"});
        model.addRow(new Object[] {"Cadilac", "Grey", "2001"});
    }


    class SharedListSelectionHandler implements ListSelectionListener {

        @Override
        public void valueChanged(ListSelectionEvent e) {
            ListSelectionModel lsm = (ListSelectionModel) e.getSource();
            String contents = "";

            if(lsm.isSelectionEmpty()) {
                System.out.println("<none>");
            } else {
                int minIndex = lsm.getMinSelectionIndex();
                int maxIndex = lsm.getMaxSelectionIndex();
                for(int i = minIndex; i <= maxIndex; i++) {
                    if(lsm.isSelectedIndex(i)) {
                        for(int j = 0; j < table.getColumnCount(); j++) {
                            contents += table.getValueAt(i, j) + " ";
                        }
                    }
                }
                System.out.println(contents);
            }
        }

    }
}

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                new SwingTesting();
            }
        });
    }
}

import javax.swing.JFrame；
导入javax.swing.JSplitPane；
导入javax.swing.SwingUtilities；
导入java.awt.BorderLayout；
导入java.awt.GridBagConstraints；
导入java.awt.GridBagLayout；
导入java.awt.Insets；
导入javax.swing.JPanel；
导入javax.swing.JScrollPane；
导入javax.swing.JTable；
导入javax.swing.ListSelectionModel；
导入javax.swing.event.ListSelectionEvent；
导入javax.swing.event.ListSelectionListener；
导入javax.swing.table.DefaultTableModel；
导入javax.swing.table.TableModel；
公开课摇摆测试{
私有最终JFrame；
私人最终桌面窗格；
私有最终JSplitPane拆分窗格；
私人最终JPanel infoPanel；
公共摇摆测试（）{
tablePane=新的tablePane（）；
infoPanel=新的JPanel（）；
frame=新的JFrame（）；
splitPane=新的JSplitPane（JSplitPane.HORIZONTAL_SPLIT，tablePane，infoPanel）；
frame.add（拆分窗格）；
frame.pack（）；
frame.setVisible（true）；
}
类TablePane扩展了JPanel{
专用最终JTable表；
私人最终表格模型；
私有最终列表选择模型列表选择模型；
公共桌面窗格（）{
table=新的JTable（）；
tableModel=createTableModel（）；
table.setModel（tableModel）；
表.setSelectionMode（ListSelectionModel.单间隔选择）；
table.add（table.getTableHeader（），BorderLayout.PAGE_START）；
表.setFillsViewPerthweight（真）；
listSelectionModel=table.getSelectionModel（）；
表.setSelectionModel（listSelectionModel）；
listSelectionModel.addListSelectionListener（新的SharedListSelectionHandler（））；
表.setSelectionModel（listSelectionModel）；
this.setLayout（新的GridBagLayout（））；
GridBagConstraints gbc=新的GridBagConstraints（）；
gbc.anchor=gridbag.NORTHWEST；
gbc.fill=GridBagConstraints.BOTH；
gbc.gridx=0；
gbc.gridy=0；
gbc.gridheight=1；
gbc.gridwidth=3；
gbc.插图=新插图（5,5,5,5）；
gbc.ipadx=2；
gbc.ipady=2；
gbc.weightx=1；
gbc.weighty=1；
新增（新JScrollPane（表），gbc）；
}
私有TableModel createTableModel（）{
DefaultTableModel=新的DefaultTableModel(
新对象[]{“汽车”、“颜色”、“年份”}，0
){
@凌驾
公共布尔值可编辑（int行，int列）{
返回false；
}
};
addTableData（模型）；
收益模型；
}
私有void addTableData（DefaultTableModel模型）{
model.addRow（新对象[]{“日产”、“黑色”、“2007”}）；
model.addRow（新对象[]{“Toyota”，“Blue”，“2012”}）；
model.addRow（新对象[]{“雪佛兰”、“红色”、“2009”}）；
model.addRow（新对象[]{“Scion”、“Silver”、“2005”}）；
model.addRow（新对象[]{“Cadilac”、“Gray”、“2001”}）；
}
类SharedListSelectionHandler实现ListSelectionListener{
@凌驾
public void值已更改（ListSelectionEvent e）{
ListSelectionModel lsm=（ListSelectionModel）e.getSource（）；
字符串内容=”；
if（lsm.isSelectionEmpty（））{
System.out.println（“”）；
}否则{
int minIndex=lsm.getMinSelectionIndex（）；
int maxIndex=lsm.getMaxSelectionIndex（）；
对于（int i=minIndex；i我认为使用自定义的
MouseListener
不如使用一个特殊的
ButtonColumn
可以在一个单独的列上对每一行渲染
JButton
，您只需要为
JButton
定义一个通用的
ActionListener

更多信息可在此处找到：
我会用的


table.getSelectedRow（）
在/未实施
RowSorter
或
RowFilter
之前是安全的，否则您必须
convertViewToModel

JToolTip的
MouseListener

ListSelectionListener（）
是一种直接的方法，但是


a） 
setSelectionMode（ListSelectionModel.单间隔选择）；

b） 测试是否有
行>-1
，否则没有选择任何行

c） 然后没有理由思考或减少
我更愿意禁用双击/多点单击。


frame.getContentPane（）.add（splitPane）；
不需要使用Java5中的
ContentPane

新建
SwingTesting（）；
请阅读


编辑：

如何使用，或

有关详细信息，请参阅


基于SSCCE

import javax.swing.*;
import java.awt.*;
import javax.swing.event.*;
import javax.swing.table.*;

public class SwingTesting {

    private final JFrame frame;
    private final TablePane tablePane;
    private final JSplitPane splitPane;
    private final JPanel infoPanel;

    JTextField make = new JTextField(9);;
    JTextField color = new JTextField(7);;
    JTextField year = new JTextField(4);

    public SwingTesting() {
        tablePane = new TablePane();
        infoPanel = new JPanel(new FlowLayout(5));

        infoPanel.add(new JLabel("Make"));
        infoPanel.add(make);
        infoPanel.add(new JLabel("Color"));
        infoPanel.add(color);
        infoPanel.add(new JLabel("Year"));
        infoPanel.add(year);

        frame = new JFrame();
        frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

        splitPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, tablePane, infoPanel);

        frame.add(splitPane);
        frame.pack();
        frame.setVisible(true);
    }

    class TablePane extends JPanel {

        private final JTable table;
        private final TableModel tableModel;
        private final ListSelectionModel listSelectionModel;

    private void setFields(int index) {
        make.setText(table.getValueAt(index, 0).toString());
        color.setText(table.getValueAt(index, 1).toString());
        year.setText(table.getValueAt(index, 2).toString());
    }

    private void clearFields() {
        make.setText("");
        color.setText("");
        year.setText("");
    }

    public TablePane() {
        table = new JTable();
        tableModel = createTableModel();
        table.setModel(tableModel);
        table.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);
        table.add(table.getTableHeader(), BorderLayout.PAGE_START);
        table.setFillsViewportHeight(true);

        listSelectionModel = table.getSelectionModel();
        table.setSelectionModel(listSelectionModel);
        listSelectionModel.addListSelectionListener(new SharedListSelectionHandler());
        table.setSelectionModel(listSelectionModel);

        this.setLayout(new GridBagLayout());
    GridBagConstraints gbc = new GridBagConstraints();
    gbc.anchor = GridBagConstraints.NORTHWEST;
    gbc.fill = GridBagConstraints.BOTH;
    gbc.gridx = 0;
    gbc.gridy = 0;
    gbc.gridheight = 1;
    gbc.gridwidth = 3;
    gbc.insets = new Insets(5, 5, 5, 5);
    gbc.ipadx = 2;
    gbc.ipady = 2;
    gbc.weightx = 1;
    gbc.weighty = 1;
        this.add(new JScrollPane(table), gbc);
    }

    private TableModel createTableModel() {
        DefaultTableModel model = new DefaultTableModel(
            new Object[] {"Car", "Color", "Year"}, 0
        ){
            @Override
            public boolean isCellEditable(int row, int column) {
                return false;
            }
        };

        addTableData(model);
        return model;
    }

    private void addTableData(DefaultTableModel model) {
        model.addRow(new Object[] {"Nissan", "Black", "2007"});
        model.addRow(new Object[] {"Toyota", "Blue", "2012"});
        model.addRow(new Object[] {"Chevrolet", "Red", "2009"});
        model.addRow(new Object[] {"Scion", "Silver", "2005"});
        model.addRow(new Object[] {"Cadilac", "Grey", "2001"});
    }


    class SharedListSelectionHandler implements ListSelectionListener {

        @Override
        public void valueChanged(ListSelectionEvent e) {
            ListSelectionModel lsm = (ListSelectionModel) e.getSource();
            String contents = "";

            if(lsm.isSelectionEmpty()) {
                System.out.println("<none>");
            } else {
                int minIndex = lsm.getMinSelectionIndex();
                int maxIndex = lsm.getMaxSelectionIndex();
                if (minIndex==maxIndex) {
                    setFields(minIndex);
                } else {
                    clearFields();
                    for(int i = minIndex; i <= maxIndex; i++) {
                        if(lsm.isSelectedIndex(i)) {
                            for(int j = 0; j < table.getColumnCount(); j++) {
                                contents += table.getValueAt(i, j) + " ";
                            }
                        }
                    }
                    System.out.println(contents);
                }
            }
        }

    }
}

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                new SwingTesting();
            }
        });
    }
}


import javax.swing.*；
导入java.awt.*；
导入javax.swing.event.*；
导入javax.swing.table.*；
公开课摇摆测试{
私有最终JFrame；
私人最终桌面窗格；
公共关系
import javax.swing.*;
import java.awt.*;
import javax.swing.event.*;
import javax.swing.table.*;

public class SwingTesting {

    private final JFrame frame;
    private final TablePane tablePane;
    private final JSplitPane splitPane;
    private final JPanel infoPanel;

    JTextField make = new JTextField(9);;
    JTextField color = new JTextField(7);;
    JTextField year = new JTextField(4);

    public SwingTesting() {
        tablePane = new TablePane();
        infoPanel = new JPanel(new FlowLayout(5));

        infoPanel.add(new JLabel("Make"));
        infoPanel.add(make);
        infoPanel.add(new JLabel("Color"));
        infoPanel.add(color);
        infoPanel.add(new JLabel("Year"));
        infoPanel.add(year);

        frame = new JFrame();
        frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

        splitPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, tablePane, infoPanel);

        frame.add(splitPane);
        frame.pack();
        frame.setVisible(true);
    }

    class TablePane extends JPanel {

        private final JTable table;
        private final TableModel tableModel;
        private final ListSelectionModel listSelectionModel;

    private void setFields(int index) {
        make.setText(table.getValueAt(index, 0).toString());
        color.setText(table.getValueAt(index, 1).toString());
        year.setText(table.getValueAt(index, 2).toString());
    }

    private void clearFields() {
        make.setText("");
        color.setText("");
        year.setText("");
    }

    public TablePane() {
        table = new JTable();
        tableModel = createTableModel();
        table.setModel(tableModel);
        table.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);
        table.add(table.getTableHeader(), BorderLayout.PAGE_START);
        table.setFillsViewportHeight(true);

        listSelectionModel = table.getSelectionModel();
        table.setSelectionModel(listSelectionModel);
        listSelectionModel.addListSelectionListener(new SharedListSelectionHandler());
        table.setSelectionModel(listSelectionModel);

        this.setLayout(new GridBagLayout());
    GridBagConstraints gbc = new GridBagConstraints();
    gbc.anchor = GridBagConstraints.NORTHWEST;
    gbc.fill = GridBagConstraints.BOTH;
    gbc.gridx = 0;
    gbc.gridy = 0;
    gbc.gridheight = 1;
    gbc.gridwidth = 3;
    gbc.insets = new Insets(5, 5, 5, 5);
    gbc.ipadx = 2;
    gbc.ipady = 2;
    gbc.weightx = 1;
    gbc.weighty = 1;
        this.add(new JScrollPane(table), gbc);
    }

    private TableModel createTableModel() {
        DefaultTableModel model = new DefaultTableModel(
            new Object[] {"Car", "Color", "Year"}, 0
        ){
            @Override
            public boolean isCellEditable(int row, int column) {
                return false;
            }
        };

        addTableData(model);
        return model;
    }

    private void addTableData(DefaultTableModel model) {
        model.addRow(new Object[] {"Nissan", "Black", "2007"});
        model.addRow(new Object[] {"Toyota", "Blue", "2012"});
        model.addRow(new Object[] {"Chevrolet", "Red", "2009"});
        model.addRow(new Object[] {"Scion", "Silver", "2005"});
        model.addRow(new Object[] {"Cadilac", "Grey", "2001"});
    }


    class SharedListSelectionHandler implements ListSelectionListener {

        @Override
        public void valueChanged(ListSelectionEvent e) {
            ListSelectionModel lsm = (ListSelectionModel) e.getSource();
            String contents = "";

            if(lsm.isSelectionEmpty()) {
                System.out.println("<none>");
            } else {
                int minIndex = lsm.getMinSelectionIndex();
                int maxIndex = lsm.getMaxSelectionIndex();
                if (minIndex==maxIndex) {
                    setFields(minIndex);
                } else {
                    clearFields();
                    for(int i = minIndex; i <= maxIndex; i++) {
                        if(lsm.isSelectedIndex(i)) {
                            for(int j = 0; j < table.getColumnCount(); j++) {
                                contents += table.getValueAt(i, j) + " ";
                            }
                        }
                    }
                    System.out.println(contents);
                }
            }
        }

    }
}

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                new SwingTesting();
            }
        });
    }
}