JTextPane只能用inserComponent插入component吗，那么如何把component添加到JTextPane的后面?

Question

rt

Answer 1

插入点是光标位置，你只需把光标位置移到末尾再inserComponent就可以了。

Answer 2

import java.awt.Container;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;import javax.swing.BorderFactory;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextField;
import javax.swing.JTextPane;
import javax.swing.text.BadLocationException;
import javax.swing.text.Document;public class JTextPaneTest extends JFrame { JTextPane textPane = null; JTextField field = new JTextField(20); Icon image = null; public JTextPaneTest() {
image = new ImageIcon(this.getClass().getResource("res/back.jpg"));
textPane = new JTextPane();
textPane.setBorder(BorderFactory.createEtchedBorder());
textPane.insertComponent(new JLabel(image));
textPane.setCaretPosition(textPane.getDocument().getLength());
textPane.insertComponent(field); textPane.setEditable(false);
textPane.setPreferredSize(new Dimension(250, 25));
field.setBorder(BorderFactory.createEmptyBorder());
field.setPreferredSize(new Dimension(250, 25));
} public void gui() {
Document doc = field.getDocument();
try {
doc.insertString(0, "I want to thank you for your clear response",
null);
} catch (BadLocationException e) {
e.printStackTrace();
}
Container cp = getContentPane();
cp.setLayout(new FlowLayout(FlowLayout.LEFT));
cp.add(textPane);
JButton b = new JButton("test");
b.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) {
try {
field.getDocument().insertString(
field.getDocument().getLength(), "test", null);
field.setCaretPosition(field.getDocument().getLength());
} catch (BadLocationException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
} });
cp.add(b);
setDefaultCloseOperation(EXIT_ON_CLOSE);
setSize(300, 100);
setVisible(true);
} public static void main(String[] args) {
JTextPaneTest test = new JTextPaneTest();
test.gui();
}
}