Mega Code Archive
A Web Page Source Viewer
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import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedInputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.HttpURLConnection;
import java.net.URL;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
public class Main extends JFrame {
JButton go = new JButton("Get Source");
JTextArea codeArea = new JTextArea();
public Main() {
JPanel inputPanel = new JPanel(new BorderLayout(3, 3));
go.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
try {
URL pageURL = new URL("http://www.google.com");
HttpURLConnection urlConnection = (HttpURLConnection) pageURL.openConnection();
int respCode = urlConnection.getResponseCode();
String response = urlConnection.getResponseMessage();
codeArea.setText("HTTP/1.x " + respCode + " " + response + "\n");
int count = 1;
while (true) {
String header = urlConnection.getHeaderField(count);
String key = urlConnection.getHeaderFieldKey(count);
if (header == null || key == null) {
break;
}
codeArea.append(urlConnection.getHeaderFieldKey(count) + ": " + header + "\n");
count++;
}
InputStream in = new BufferedInputStream(urlConnection.getInputStream());
Reader r = new InputStreamReader(in);
int c;
while ((c = r.read()) != -1) {
codeArea.append(String.valueOf((char) c));
}
codeArea.setCaretPosition(1);
} catch (Exception ee) {
}
}
});
inputPanel.add(BorderLayout.EAST, go);
JScrollPane codeScroller = new JScrollPane(codeArea);
add(BorderLayout.NORTH, inputPanel);
add(BorderLayout.CENTER, codeScroller);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setSize(700, 500);
this.setVisible(true);
}
public static void main(String[] args) {
JFrame webPageSourceViewer = new Main();
}
}
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