如何在JTable中设置Title

Question

我是java新手，想在jtable中设置表头，我已经采取了数组，但无法设置头，请指导我。我试过设置通过采取实例的JTable，但没有帮助。也试过table.setmodel。由于

import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.File;
import java.io.IOException;
import java.util.List;
import java.util.Vector;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTabbedPane;
import javax.swing.JTable;
import javax.swing.table.JTableHeader;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.xml.sax.SAXException;
public class XmlGui extends JFrame {
    public XmlGui() {
    }
    public static final String[] colNames = { " Name ", " Type ", " Value " };
    public static void main(String[] args) throws SAXException, IOException,
            ParserConfigurationException {
        SAXParserFactory factory = SAXParserFactory.newInstance();
        SAXParser saxParser = factory.newSAXParser();
        XmlBack xmlBack = new XmlBack();
        saxParser.parse(new File(
                "File path"), xmlBack);
        new XmlGui().drawFrame(xmlBack.varGroupVariables);
    }
    public void drawFrame(List<VarGroupVariable> varGroupVariables) {
        setTitle("The Xml Parser");
        addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });
        setSize(800, 500);
        JTabbedPane tabbedPane = new JTabbedPane();
        JPanel jplInnerPanel1 = createInnerPanel();
        jplInnerPanel1.setLayout(new BorderLayout());
        //Vector<String> columnNames = new Vector<String>();
        JTable table = new JTable();
        table.setModel(new VarGroupVariableModel(varGroupVariables));
        JScrollPane tableContainer = new JScrollPane(table);
        jplInnerPanel1.add(tableContainer, BorderLayout.CENTER);
        tabbedPane.addTab(" TABBEDPANE DEMO ", jplInnerPanel1);
getContentPane().add(tabbedPane);
        setVisible(true);
    }
    protected JPanel createInnerPanel() {
        JPanel jplPanel = new JPanel();
        JLabel jlbDisplay = new JLabel();
        jlbDisplay.setHorizontalAlignment(JLabel.CENTER);
        jplPanel.setLayout(new GridLayout(1, 1));
        jplPanel.add(jlbDisplay);
        return jplPanel;
    }
}

Answer 1

public static final String[] colNames = { " Name ", " Type ", " Value " };

你不能只定义一个包含列名的变量。

您的VarGroupVariableModel必须正确实现getColumnNames()方法才能显示表头名称。所以上面的代码需要成为你的模型的一部分。

请参阅Swing教程关于如何使用表的工作示例和更多信息。