Website Icon

[Lucaaa]

Hallo!
Ich will folgendes Machen:
Das Icon einer beliebigen Website (z.B. java-forum.org) laden, und in einem JLabel anzeigen.
Frage: wie mache ich das? und darf ich das rein rechtlich überhaupt?

 

[mrBrown]

Ja, dürfte erlaubt sein.

Die Bilder findest du jeweils unter „/favicon.ico„, ImageIcon hat einen Constructor, der eine URL entgegen nimmt

 

[Lucaaa]

Die Bilder findest du jeweils unter „/favicon.ico„, ImageIcon hat einen Constructor, der eine URL entgegen nimmt

try {
   icon2 = new ImageIcon(new URL("https:\\www.facebook.de/favicon.ico"));
  } catch (MalformedURLException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }

Fehler:

Uncaught error fetching image:
java.lang.IllegalArgumentException: protocol = https host = null
 at sun.net.spi.DefaultProxySelector.select(Unknown Source)
 at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(Unknown Source)
 at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
 at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
 at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
 at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
 at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source)
 at sun.awt.image.URLImageSource.getDecoder(Unknown Source)
 at sun.awt.image.InputStreamImageSource.doFetch(Unknown Source)
 at sun.awt.image.ImageFetcher.fetchloop(Unknown Source)
 at sun.awt.image.ImageFetcher.run(Unknown Source)

 

[httpdigest]

"https://www.facebook.de/favicon.ico"

 

[Lucaaa]

"https://www.facebook.de/favicon.ico"

Ok das scheint zu klappen.
Allerdings wird mein Icon nicht angezeigt.

package com.ludevstudio.passwordmanager;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.ComponentOrientation;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.ScrollPane;
import javax.swing.BoxLayout;
import javax.swing.JComponent;
import javax.swing.JPanel;
import javax.swing.JScrollBar;
import javax.swing.JScrollPane;
import javax.swing.ScrollPaneConstants;
public class ManagerPanel extends JPanel{
 // This Class contains the Manager
 static JPanel panel;
 
 // Constructor and params
 public ManagerPanel() {
  setLayout(new GridLayout(1, 1)); 
  add(gettScrollPane());
 
 } 
 
 
 public static void addEntry(String provider, String account, String password) {
  ItemPanel item = new ItemPanel(provider, account, password);
  panel.add(item);
  panel.revalidate();
  panel.repaint();
  item.revalidate();
  item.repaint();
 
 }
 
 
 public JScrollPane gettScrollPane() {
   panel = new JPanel();
  WrapLayout layout = new WrapLayout(WrapLayout.LEFT, 10, 10);
  layout.preferredLayoutSize(this);
  
  
  panel.setLayout(layout);
  
  JScrollPane pane = new JScrollPane(panel,
    ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED,
    ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
  
  
  
  
  return pane;
 }
 
 
}

package com.ludevstudio.passwordmanager;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.border.EmptyBorder;
import javax.swing.border.LineBorder;

public class ActionsPanel  extends JPanel implements ActionListener { 
 // THis Class contains the Action Buttons on the right side.
 
 JLabel labAddNew, labProvider, labAccount, labPasswor, labConfirm;
 JTextField tfProvieder, tfAccount, tfPassword, tfConfirm;
 static JButton btnAdd, btnEdit, btnDelete;
 
 
 
 // Constructor and params
 public ActionsPanel()  {
  setLayout(new GridLayout(10, 1, 15, 15));
  setPreferredSize(new Dimension(300, 200));
  setMaximumSize(getPreferredSize());
  setBorder(new EmptyBorder(15, 15, 15, 15));
  setBackground(Color.white);
  initComponents();
  
 }
 public void initComponents() {
  Font fontHead = new Font("Arial", Font.BOLD, 28);
  Font fontElements = new Font("Arial", Font.CENTER_BASELINE, 22);
  
  btnAdd = new JButton("Add Element");
  btnAdd.setFont(fontElements);
  btnAdd.setPreferredSize(new Dimension(200, 40));
  btnAdd.setMaximumSize(new Dimension(Integer.MAX_VALUE, 40));
  btnAdd.addActionListener(this);
  add(btnAdd);
  
  btnEdit = new JButton("Edit Element");
  btnEdit.setFont(fontElements);
  btnEdit.setPreferredSize(new Dimension(200, 40));
  btnEdit.setEnabled(false); 
  add(btnEdit);
  
  btnDelete = new JButton("Delete Element");
  btnDelete.setFont(fontElements);
  btnDelete.setPreferredSize(new Dimension(200, 40));
  btnDelete.setEnabled(false);
  add(btnDelete);
  
  
 }
 @Override
 public void actionPerformed(ActionEvent e) {
  if(e.getSource()==btnAdd) {
   new AddEntryDialog();
  } 
 }
 
}

package com.ludevstudio.passwordmanager;
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import org.omg.CORBA.portable.ApplicationException;
public class AddEntryDialog extends JDialog implements ActionListener, WindowListener{
 JLabel labProvider;
 JLabel labAccount;
 JLabel labPassword;
 JLabel labConfirm;
 JTextField tfProvider, tfAccount, tfPassword, tfConfirm;
 JButton btnOk, btnCancel;
 
 public AddEntryDialog() {
  setResizable(false);
  setTitle("Add new Entry");
  setLayout(new BorderLayout());
  setAlwaysOnTop(true);
  MainFrame.frame.setAlwaysOnTop(true);
  initComponents();
  
  
  pack();
  setLocationRelativeTo(null);
  setDefaultCloseOperation(JDialog.DO_NOTHING_ON_CLOSE);
  setVisible(true);
  MainFrame.frame.setEnabled(false);
 }
 
 
 public void initComponents() {
  JPanel textContainer = new JPanel(new GridBagLayout());
  this.add(textContainer, BorderLayout.CENTER);
  
  Font font = new Font("Arial", Font.LAYOUT_LEFT_TO_RIGHT, 20);
  GridBagConstraints gbc = new GridBagConstraints();
  gbc.gridx = 0;
  gbc.gridy = 0;
  gbc.insets = new Insets(5, 5, 5, 5);
  
  
  labProvider = new JLabel("Provider: ");
  labProvider.setFont(font);
  textContainer.add(labProvider, gbc);
  
  gbc.gridx = 0;
  gbc.gridy = 1;
  labAccount = new JLabel("Account: ");
  labAccount.setFont(font);
  textContainer.add(labAccount, gbc);
  
  gbc.gridx = 0;
  gbc.gridy = 2;
  labPassword = new JLabel("Password: ");
  labPassword.setFont(font);
  textContainer.add(labPassword, gbc);
 
 
  gbc.gridx = 1;
  gbc.gridy = 0;
   tfProvider = new JTextField();
  tfProvider.setPreferredSize(new Dimension(150, 30));
  textContainer.add(tfProvider, gbc);
  
  gbc.gridx = 1;
  gbc.gridy = 1;
  tfAccount = new JTextField();
  tfAccount.setPreferredSize(new Dimension(150, 30));
  textContainer.add(tfAccount, gbc);
 
  
  gbc.gridx = 1;
  gbc.gridy = 2;
  tfPassword = new JTextField();
  tfPassword.setPreferredSize(new Dimension(150, 30));
  textContainer.add(tfPassword, gbc);
  
  
  gbc.gridx = 0;
  gbc.gridy = 3;
   labConfirm = new JLabel("Confirm");
  labConfirm.setFont(font);
  textContainer.add(labConfirm, gbc);
 
  
  gbc.gridx = 1;
  gbc.gridy = 3;
   tfConfirm = new JTextField();
  tfConfirm.setPreferredSize(new Dimension(150, 30));
  tfConfirm.setFont(font);
  textContainer.add(tfConfirm, gbc);
  
  
  
  
  gbc.gridx = 2;
  gbc.gridy = 0;
  gbc.fill = GridBagConstraints.HORIZONTAL;
  btnOk = new JButton("Add");
  btnOk.addActionListener(this);
  textContainer.add(btnOk, gbc);
 
  gbc.gridx = 2;
  gbc.gridy = 1;
   btnCancel = new JButton("Cancel");
  btnCancel.addActionListener(this);
  textContainer.add(btnCancel, gbc);
 
 
 
 }

 @Override
 public void actionPerformed(ActionEvent e) {
  if(e.getSource()==btnCancel) {
   this.hide();
   MainFrame.frame.setEnabled(true);
   MainFrame.frame.setAlwaysOnTop(false);
  } else if (e.getSource()==btnOk) {
   if(!tfProvider.getText().isEmpty() && !tfPassword.getText().isEmpty() && !tfAccount.getText().isEmpty()) {
    if(tfPassword.getText().equals(tfConfirm.getText())) {
     ManagerPanel.addEntry(tfProvider.getText(), tfAccount.getText(), tfPassword.getText());
     this.hide();
     MainFrame.frame.setEnabled(true);
     MainFrame.frame.setAlwaysOnTop(false);
    }
   }
   
  }
 }

 @Override
 public void windowActivated(WindowEvent e) {
  // TODO Auto-generated method stub
  
 }

 @Override
 public void windowClosed(WindowEvent e) {
  
 }

 @Override
 public void windowClosing(WindowEvent e) {
  // TODO Auto-generated method stub
  
 }

 @Override
 public void windowDeactivated(WindowEvent e) {
  // TODO Auto-generated method stub
  
 }

 @Override
 public void windowDeiconified(WindowEvent e) {
  // TODO Auto-generated method stub
  
 }

 @Override
 public void windowIconified(WindowEvent e) {
  // TODO Auto-generated method stub
  
 }

 @Override
 public void windowOpened(WindowEvent e) {
  // TODO Auto-generated method stub
  
 }

 
 
}

Hier soll das Icon angezeigt werden

package com.ludevstudio.passwordmanager;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Image;
import java.awt.RenderingHints;
import java.awt.image.BufferedImage;
import java.awt.image.ImageObserver;
import java.awt.image.ImageProducer;
import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import javax.imageio.ImageIO;
import javax.swing.BoxLayout;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.border.LineBorder;
public class ItemPanel extends JPanel {
 
 JLabel iconContainer, labProvider, labAccount, labPassword;
 JPanel textContainer;
 
 
 
 
 
 Image icon;
 String provider, password, account;
 
 public ItemPanel(String provider, String account, String password) {
  this.provider = provider;
  this.account = account;
  this.password = password;
  
  
  
  setBorder(new LineBorder(Color.black));
  setPreferredSize(new Dimension(500, 100));  // HIER SOLL DIE GRÖSSE AUTOM. ANGEPASST WERDEN
  setMinimumSize(this.getPreferredSize());
  setMaximumSize(this.getPreferredSize());
  setLayout(new BorderLayout());
  setBackground(Color.white);
  
  Thread t1 = new Thread(new Runnable() {
   
   @Override
   public void run() {
    // TODO Auto-generated method stub
    initComponents();
    try {
     icon = ImageIO.read(new URL("https://www.facebook.com/favicon.ico"));
    } catch (IOException e) {
     // TODO Auto-generated catch block
     e.printStackTrace();
    }
   }
  });
  t1.start();
  
 
  
 }
 
 public void initComponents() {
  
  Font fontProvider = new Font("Arial", Font.BOLD, 36);
  Font fontAccount = new Font("Arial", Font.ITALIC, 28);
  
  
  
  
  iconContainer = new JLabel(new ImageIcon(getScaledImage(icon, 80, 80)));
  iconContainer.setPreferredSize(new Dimension(100, 100));
  iconContainer.setMaximumSize(iconContainer.getPreferredSize());
  iconContainer.setBackground(Color.white);
  this.add(iconContainer, BorderLayout.WEST);
  
  
  textContainer = new JPanel();
  textContainer.setLayout(new BoxLayout(this.textContainer, BoxLayout.PAGE_AXIS));
  textContainer.setBackground(Color.white);
  labProvider = new JLabel(provider);
  labProvider.setFont(fontProvider);
  textContainer.add(labProvider);
  labAccount = new JLabel(account);
  labAccount.setFont(fontAccount);
  textContainer.add(labAccount);
  this.add(textContainer, BorderLayout.CENTER);
 
 
  this.revalidate();
  this.repaint();
 }
 
 private Image getScaledImage(Image srcImg, int w, int h){
     BufferedImage resizedImg = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
     Graphics2D g2 = resizedImg.createGraphics();
     g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
     g2.drawImage(srcImg, 0, 0, w, h, null);
     g2.dispose();
     return resizedImg;
 }
 
 
 
 
}

 

[mihe7]

Du rufst initComponents auf und danach lädst Du icon, mit dem nichts mehr passiert. Abgesehen davon hat initComponents nichts in einem separaten Thread verloren.

 

[Xyz1]

Nachdem das icon geladen wurde soll es ja auch bitte irgendwie sichtbar sein.

 

[Lucaaa]

nichts in einem separaten Thread verloren.

Ich weiß. Ich wollte da nur was testen

 

[Lucaaa]

Du rufst initComponents auf und danach lädst Du icon, mit dem nichts mehr passiert.

Habs jetzt andersrum. Wird trotzdem nicht angezeigt.

package com.ludevstudio.passwordmanager;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Image;
import java.awt.RenderingHints;
import java.awt.image.BufferedImage;
import java.awt.image.ImageObserver;
import java.awt.image.ImageProducer;
import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import javax.imageio.ImageIO;
import javax.swing.BoxLayout;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.border.LineBorder;
public class ItemPanel extends JPanel {
 
 JLabel iconContainer, labProvider, labAccount, labPassword;
 JPanel textContainer;
 
 
 
 
 
 Image icon;
 String provider, password, account;
 
 public ItemPanel(String provider, String account, String password) {
  this.provider = provider;
  this.account = account;
  this.password = password;
  
  
  
  setBorder(new LineBorder(Color.black));
  setPreferredSize(new Dimension(500, 100));  // HIER SOLL DIE GRÖSSE AUTOM. ANGEPASST WERDEN
  setMinimumSize(this.getPreferredSize());
  setMaximumSize(this.getPreferredSize());
  setLayout(new BorderLayout());
  setBackground(Color.white);
  
  
    // TODO Auto-generated method stub
   
    try {
     icon = ImageIO.read(new URL("https://www.youtube.com/favicon.ico"));
    } catch (IOException e) {
     // TODO Auto-generated catch block
     e.printStackTrace();
    } finally {
     initComponents();
    }
  
  
  
 
  
 }
 
 public void initComponents() {
  
  Font fontProvider = new Font("Arial", Font.BOLD, 36);
  Font fontAccount = new Font("Arial", Font.ITALIC, 28);
  
  
  
  
  iconContainer = new JLabel(new ImageIcon(getScaledImage(icon, 80, 80)));
  iconContainer.setPreferredSize(new Dimension(100, 100));
  iconContainer.setMaximumSize(iconContainer.getPreferredSize());
  iconContainer.setBackground(Color.white);
  this.add(iconContainer, BorderLayout.WEST);
  
  
  textContainer = new JPanel();
  textContainer.setLayout(new BoxLayout(this.textContainer, BoxLayout.PAGE_AXIS));
  textContainer.setBackground(Color.white);
  labProvider = new JLabel(provider);
  labProvider.setFont(fontProvider);
  textContainer.add(labProvider);
  labAccount = new JLabel(account);
  labAccount.setFont(fontAccount);
  textContainer.add(labAccount);
  this.add(textContainer, BorderLayout.CENTER);
 
 
  this.revalidate();
  this.repaint();
 }
 
 private Image getScaledImage(Image srcImg, int w, int h){
     BufferedImage resizedImg = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
     Graphics2D g2 = resizedImg.createGraphics();
     g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
     g2.drawImage(srcImg, 0, 0, w, h, null);
     g2.dispose();
     return resizedImg;
 }
 
 
 
 
}

 

[mihe7]

Liegt evtl. daran, dass ImageIO keine icons kann und null zurückliefert?