我正在尝试使用非JTextArea
Swing 文本组件,并在此代码中尝试在JTextPane
. 我能够阅读网页并将其放入JTextPane
's 文档中,如我打印出调用getText
my时返回的字符串时所示HTMLDocument
,但 JTextPane 中没有显示任何内容。我觉得好像我缺少一些基本的东西。提前致谢。
我的SSCCE:
import java.awt.*;
import java.io.IOException;
import java.net.*;
import javax.swing.*;
import javax.swing.text.*;
import javax.swing.text.html.*;
@SuppressWarnings("serial")
public class TestStyledDoc2 extends JPanel {
public static final String GETTY_FILE = "http://www.d.umn.edu/~rmaclin/" +
"gettysburg-address.html";
private HTMLEditorKit htmlKit = new HTMLEditorKit();
private HTMLDocument htmlDocument = (HTMLDocument) htmlKit.createDefaultDocument();
private JTextPane htmlPane = new JTextPane(htmlDocument);
public TestStyledDoc2() {
JScrollPane scrollPane1 = new JScrollPane(htmlPane);
try {
htmlPane.setEditorKit(htmlKit);
URL gettyUrl = new URL(GETTY_FILE);
htmlKit.read(gettyUrl.openStream(), htmlDocument, 0);
System.out.println(htmlDocument.getText(0, htmlDocument.getLength()));
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (BadLocationException e) {
e.printStackTrace();
}
scrollPane1.getViewport().setPreferredSize(new Dimension(400, 400));
setLayout(new BorderLayout());
add(scrollPane1, BorderLayout.CENTER);
}
private static void createAndShowUI() {
JFrame frame = new JFrame("TestStyledDoc");
frame.getContentPane().add(new TestStyledDoc2());
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
public static void main(String[] args) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
createAndShowUI();
}
});
}
}