CloseableFrame

[hacpro]

Hallo zusammen...
Ich will eine Übung von einem Servlet Buch ausführen.. Nun wen ich die die Klasse mit einem extends ClosableFrame ergänze gibt es eine Fehlermeldung, das diese Klasse CloseableFrame überhaupt nicht existiert..
Ist jetzt mein Buch schon sooo alt? Oder mache ich da was falsch.. ?

import java.awt.*;
import java.awt.event.*;
import java.util.*;

/** A graphical client that lets you interactively connect to
 *  Web servers and send custom request lines and
 *  request headers.
 *  


 *  Taken from Core Servlets and JavaServer Pages
 *  from Prentice Hall and Sun Microsystems Press,
 *  [url]http://www.coreservlets.com/[/url].
 *  & 2000 Marty Hall; may be freely used or adapted.
 */


public class WebClient extends CloseableFrame
    implements Runnable, Interruptible, ActionListener {
  public static void main(String[] args) {
    new WebClient("Web Client");
  }

  private LabeledTextField hostField, portField,
          requestLineField;
  private TextArea requestHeadersArea, resultArea;
  private String host, requestLine;
  private int port;
  private String[] requestHeaders = new String[30];
  private Button submitButton, interruptButton;
  private boolean isInterrupted = false;

  public WebClient(String title) {
    super(title);
    setBackground(Color.lightGray);
    setLayout(new BorderLayout(5, 30));
    int fontSize = 14;
    Font labelFont =
      new Font("Serif", Font.BOLD, fontSize);
    Font headingFont =
      new Font("SansSerif", Font.BOLD, fontSize+4);
    Font textFont =
      new Font("Monospaced", Font.BOLD, fontSize-2);
    Panel inputPanel = new Panel();
    inputPanel.setLayout(new BorderLayout());
    Panel labelPanel = new Panel();
    labelPanel.setLayout(new GridLayout(4,1));
    hostField = new LabeledTextField("Host:", labelFont,
                                     30, textFont);
    portField = new LabeledTextField("Port:", labelFont,
                                     "80", 5, textFont);
    // Use HTTP 1.0 for compatibility with the most servers.
    // If you switch this to 1.1, you *must* supply a
    // Host: request header.
    requestLineField =
      new LabeledTextField("Request Line:", labelFont,
                           "GET / HTTP/1.0", 50, textFont);
    labelPanel.add(hostField);
    labelPanel.add(portField);
    labelPanel.add(requestLineField);
    Label requestHeadersLabel =
      new Label("Request Headers:");
    requestHeadersLabel.setFont(labelFont);
    labelPanel.add(requestHeadersLabel);
    inputPanel.add(labelPanel, BorderLayout.NORTH);
    requestHeadersArea = new TextArea(5, 80);
    requestHeadersArea.setFont(textFont);
    inputPanel.add(requestHeadersArea, BorderLayout.CENTER);
    Panel buttonPanel = new Panel();
    submitButton = new Button("Submit Request");
    submitButton.addActionListener(this);
    submitButton.setFont(labelFont);
    buttonPanel.add(submitButton);
    inputPanel.add(buttonPanel, BorderLayout.SOUTH);
    add(inputPanel, BorderLayout.NORTH);
    Panel resultPanel = new Panel();
    resultPanel.setLayout(new BorderLayout());
    Label resultLabel =
      new Label("Results", Label.CENTER);
    resultLabel.setFont(headingFont);
    resultPanel.add(resultLabel, BorderLayout.NORTH);
    resultArea = new TextArea();
    resultArea.setFont(textFont);
    resultPanel.add(resultArea, BorderLayout.CENTER);
    Panel interruptPanel = new Panel();
    interruptButton = new Button("Interrupt Download");
    interruptButton.addActionListener(this);
    interruptButton.setFont(labelFont);
    interruptPanel.add(interruptButton);
    resultPanel.add(interruptPanel, BorderLayout.SOUTH);
    add(resultPanel, BorderLayout.CENTER);
    setSize(600, 700);
    setVisible(true);
  }

  public void actionPerformed(ActionEvent event) {
    if (event.getSource() == submitButton) {
      Thread downloader = new Thread(this);
      downloader.start();
    } else if (event.getSource() == interruptButton) {
      isInterrupted = true;
    } 
  }

  public void run() {
    isInterrupted = false;
    if (hasLegalArgs()) 
      new HttpClient(host, port, requestLine,
		     requestHeaders, resultArea, this);
  }
                         
  public boolean isInterrupted() {
    return(isInterrupted);
  }

  private boolean hasLegalArgs() {
    host = hostField.getTextField().getText();
    if (host.length() == 0) {
      report("Missing hostname");
      return(false);
    }
    String portString =
      portField.getTextField().getText();
    if (portString.length() == 0) {
      report("Missing port number");
      return(false);
    }
    try {
      port = Integer.parseInt(portString);
    } catch(NumberFormatException nfe) {
      report("Illegal port number: " + portString);
      return(false);
    }
    requestLine =
      requestLineField.getTextField().getText();
    if (requestLine.length() == 0) {
      report("Missing request line");
      return(false);
    }
    getRequestHeaders();
    return(true);
  }

  private void report(String s) {
    resultArea.setText(s);
  }

  private void getRequestHeaders() {
    for(int i=0; i<requestHeaders.length; i++)
      requestHeaders[i] = null;
    int headerNum = 0;
    String header =
      requestHeadersArea.getText();
    StringTokenizer tok =
      new StringTokenizer(header, "\r\n");
    while (tok.hasMoreTokens())
      requestHeaders[headerNum++] = tok.nextToken();
  }
}

 

[Grasstampfer]

LabeledTextField und CloseableFrame sind keine üblichen java klassen - die musst du schon vom source des buches oder so holen.

 

[hacpro]

yep...habs gerade gemerkt !! danke vielmal!!