Création d'un browser - interprétation html
Bonjour à tous,
Je cherche à créer un browser en java, quelque chose de vraiment basique pour l'instant. Mon browser peut déjà lire toutes les pages sauf quand j'essaie de me connecter à un serveur (que je crée également en java). Au moment de la connexion, mon serveur envoie une page html à mon browser qui souhaite le lire. Le browser le lit mais n'interprète pas les balises html, il ne fait que ressortir tout le texte...
Pourriez-vous m'indiquer pour pourrait se trouver mon erreur ?
Code du server :
Code:
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package ServerConnection;
import java.io.IOException;
import java.net.BindException;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Date;
import java.util.logging.FileHandler;
import java.util.logging.Level;
import java.util.logging.Logger;
import Logger.CustomFormatter;
import Logger.DateWeekYear;
import Memory.GetMemoryUsage;
public class Server {
private final static Logger ServerLogger = Logger.getLogger("ServerLog");
/*
* agrs [0] = Port number
* args [1] = Server's Timeout
* args [2] = LogLevel
*/
public static void main(String []agrs){
// Get the Argument from the command line
int port = Integer.parseInt(agrs[0]);
int timeout = Integer.parseInt(agrs[1]);
int logLevel = Integer.parseInt(agrs[2]);
int clientNumber = 1 ;
// Define the Logger
switch(logLevel){
case 0: ServerLogger.setLevel(Level.INFO);
break ;
case 1: ServerLogger.setLevel(Level.WARNING);
break;
case 2: ServerLogger.setLevel(Level.SEVERE);
break ;
default:
ServerLogger.setLevel(Level.INFO);
}
// Server Information
ServerSocket mySkServer = null ;
InetAddress localAddress ;
// Logger
CustomFormatter myFormatter = new CustomFormatter();
DateWeekYear dateWeek = new DateWeekYear();
Date date = new Date();
String currentWeek = dateWeek.yearWeekYearFromDate(date); // Get the current Week of the Year
try {
localAddress = InetAddress.getLocalHost() ;
mySkServer = new ServerSocket(port,10,localAddress);
mySkServer.setSoTimeout(timeout);
// Logger
FileHandler fh = new FileHandler(".//Log//MyLog"+currentWeek+".log",true); // Création du fichier log
// Use the Formatter
fh.setFormatter(myFormatter);
ServerLogger.addHandler(fh);
// Previous Information
System.out.println("Default Timeout : "+mySkServer.getSoTimeout());
ServerLogger.info("Default Timeout : "+mySkServer.getSoTimeout());
System.out.println("Used IpAddress : "+mySkServer.getInetAddress());
ServerLogger.info("Used IpAddress : "+mySkServer.getInetAddress());
System.out.println("Listening to Port : "+mySkServer.getLocalPort());
ServerLogger.info("Listening to Port : "+mySkServer.getLocalPort());
// Wait for a client connection
System.out.println("********************* Start **************************");
ServerLogger.info("********************* Start **************************");
while(true){
System.out.println("1-Memory in main Thread : "+GetMemoryUsage.GetValue()+" kb");
ServerLogger.warning("1-Memory in main Thread : "+GetMemoryUsage.GetValue()+" kb");
Socket clientSocket = mySkServer.accept() ;
System.out.println("Connection request recieved");
ServerLogger.info("Connection request recieved");
System.out.println("2-Memory before Thread : "+GetMemoryUsage.GetValue()+" kb");
ServerLogger.warning("2-Memory before Thread : "+GetMemoryUsage.GetValue()+" kb");
Thread t = new Thread(new AcceptClient(clientSocket, clientNumber, ServerLogger));
clientNumber++ ;
t.start();
System.out.println("3-Memory after Thread : "+GetMemoryUsage.GetValue()+" kb");
ServerLogger.warning("3-Memory after Thread : "+GetMemoryUsage.GetValue()+" kb");
}
}catch (BindException e) {
System.out.println("This Port is already used");
ServerLogger.severe("This Port is already used");
} catch (IOException e) {
System.out.println("IO Exception");
ServerLogger.severe("IO Exception");
}
}
} |
Code du Accept Client gérant les threads :
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package ServerConnection;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;
import java.util.Scanner;
import java.util.logging.Logger;
import Memory.GetMemoryUsage;
public class AcceptClient implements Runnable {
// General Server Information
private Socket clientSocket ;
private int clientNo ;
private Logger ServerLogger ;
// Streams
private PrintWriter pout ;
private BufferedReader buffin ;
private Scanner sc ;
private String homePage = "" ;
private String browserMessage ;
private String header ;
// Constructor
public AcceptClient(Socket clientSocket, int clientNo, Logger ServerLogger){
this.clientSocket = clientSocket ;
this.clientNo = clientNo ;
this.ServerLogger = ServerLogger ;
}
@Override
public void run() {
try {
//sc = new Scanner(new File(".\\page.html"));
ServerLogger.info("A client is connected");
System.out.println("client number : "+clientNo);
ServerLogger.info("client number : "+clientNo);
pout = new PrintWriter(clientSocket.getOutputStream());
buffin = new BufferedReader (new InputStreamReader (clientSocket.getInputStream()));
// Recieved the header
while(true){
browserMessage = buffin.readLine().trim();
header = header + browserMessage + "\n";
//System.out.println("MESSAGE : "+header);
if (browserMessage.equals(""))
{
break;
}
}
// Check with browser is connected
CheckHeader(header) ;
sc = CheckPage(header);
// Send the home page
while(sc.hasNextLine())
{
homePage = sc.nextLine() ;
pout.println(homePage);
pout.flush();
}
System.out.println("/************ End ******************/");
ServerLogger.info("/************ End ******************/");
clientNo++ ;
clientSocket.close() ;
}
catch (IOException e) {
System.out.println("IO Exception");
ServerLogger.severe("IO Exception");
}
finally {
pout.close() ;
try {clientSocket.close();}
catch (IOException e) {};
System.out.println("X-Memory end Thread : "+GetMemoryUsage.GetValue()+" kb");
ServerLogger.warning("X-Memory end Thread : "+GetMemoryUsage.GetValue()+" kb");
}
}
/**
* Give the header from the browser and give back in the log which browser it is
* @param header
*/
public void CheckHeader(String header){
if(header.contains("Firefox/")){
ServerLogger.info("Header from : Mozilla FireFox");
}
else if(header.contains("Chrome/")){
ServerLogger.info("Header from : Google Chrome");
}
else {
ServerLogger.info("Header from : Internet Explorer or else");
}
}
public Scanner CheckPage(String header) throws FileNotFoundException{
if(header.contains("/admin")){
return new Scanner(new File(".\\admin.html"));
}else if(header.contains("/lost")) {
return new Scanner(new File(".\\lost.html"));
}else {
return new Scanner(new File(".\\page.html"));
}
}
} |
Et enfin mon browser :
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package Client;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.net.URL;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.text.Document;
public class TheBrowserTest extends JFrame implements ActionListener
{
private static final long serialVersionUID = 1L;
private JLabel prompt; //Cues user to enter a URL.
private JTextField sourceName; //Holds URL string.
private JPanel requestPanel; //Contains prompt
//and URL string.
private JEditorPane contents; //Holds page.
public static void main(String[] args) throws IOException
{
TheBrowserTest frame = new TheBrowserTest();
frame.setSize(700,500);
frame.setVisible(true);
frame.setDefaultCloseOperation(EXIT_ON_CLOSE);
}
public TheBrowserTest() throws IOException
{
setTitle("ZeBrozair");
requestPanel = new JPanel();
prompt = new JLabel("Required URL: ");
sourceName = new JTextField(25);
sourceName.addActionListener(this);
requestPanel.add(prompt);
requestPanel.add(sourceName);
add(requestPanel, BorderLayout.NORTH);
contents = new JEditorPane("http://192.168.108.10");
//We don't want the user to be able to alter the
//contents of the Web page display area, so...
contents.setEditable(false);
//Create object that implements HyperlinkListener
//interface...
LinkListener linkHandler = new LinkListener();
//Make the above object a HyperlinkListener for
//our JEditorPane object...
contents.addHyperlinkListener(linkHandler);
//'Wrap' the JEditorPane object inside a
//JScrollPane, to provide scroll bars...
add(new JScrollPane(contents),
BorderLayout.CENTER);
}
public void actionPerformed(ActionEvent event)
//Called when the user presses <Enter>
//after keying a URL into the text field
//and also when a hyperlink is clicked.
{
showPage(sourceName.getText());
}
private class LinkListener implements HyperlinkListener
{
public void hyperlinkUpdate(HyperlinkEvent event)
{
if (event.getEventType() == HyperlinkEvent.EventType.ACTIVATED)
showPage(event.getURL().toString());
//Other hyperlink event types ignored.
}
}
private void showPage(String location)
{
try
{
Document doc = contents.getDocument() ;
//Reset page displayed on JEditorPane...
contents.setContentType("text/html");
contents.setPage(location);
//Reset URL string in text field...
sourceName.setText(location);
}
catch(IOException ioEx)
{
JOptionPane.showMessageDialog(this,
"Unable to retrieve URL",
"Invalid URL",
JOptionPane.ERROR_MESSAGE);
}
}
} |
Pour la page html c'est une page vraiment basique comme ceci :
<html>
<head>
<title>Homepage</title>
</head>
<body>
<h1>HomePage</h1>
</body>
</html>
Si vous avez des idées n'hésitez pas...
Merci d'avance :)
