Display JSP in applet

Is there anyway to load a JSP from within an applet?

If you want to display the output of the jsp in a GUI object in the applet you can use the HttpURLConnection class. This will allow you to call the jsp and retrieve the response. How to display is up to you. Nor do I know how you would handle javascript or CSS.
If you want the JSP to be displayed in the browser window that the applet window is running in, look into using JavaScript and LiveConnect.

Similar Messages

Using getter/setter for returing a string variable to display on an Applet

have two classes called, class A and class testA.
class A contains an instance variable called title and one getter & setter method. class A as follow.
public class A extends Applet implements Runnable, KeyListener
     //Use setter and getter of the instance variable
     private String title;
     public void init()
          ASpriteFactory spriteFactory = ASpriteFactory.getSingleton();
          // Find the size of the screen .
          Dimension theDimension = getSize();
          width = theDimension.width;
          height = theDimension.height;
          //Create new ship
          ship = spriteFactory.createNewShip();
          fwdThruster = spriteFactory.createForwardThruster();
          revThruster = spriteFactory.createReverseThruster();
          ufo = spriteFactory.createUfo();
          missile = spriteFactory.createMissile();
          generateStars();
          generatePhotons();
          generateAsteroids();
          generateExplosions();
          initializeFonts();
          initializeGameData();
          //Example from Instructor
          //setMyControlPanel( new MyControlPanel(this) );
          // new for JDK 1.2.2
          addKeyListener(this);
          requestFocus();
     public void update(Graphics theGraphics)
          // Create the offscreen graphics context, if no good one exists.
          if (offGraphics == null || width != offDimension.width || height != offDimension.height)
               // This better be the same as when the game was started
               offDimension = getSize();
               offImage = createImage(offDimension.width, offDimension.height);
               offGraphics = offImage.getGraphics();
               offGraphics.setFont(font);
          displayStars();
          displayPhotons();
          displayMissile();
          displayAsteroids();
          displayUfo();
          //displayShip();
          //Load the game with different color of the space ship
          displayNewShip();
          displayExplosions();
          displayStatus();
          displayInfoScreen();
          // Copy the off screen buffer to the screen.
          theGraphics.drawImage(offImage, 0, 0, this);
     private void displayInfoScreen()
          String message;
          if (!playing)
               offGraphics.setColor(Color.white);
               offGraphics.drawString("\'A\' to Change Font Attribute", 25, 35);
               offGraphics.drawString(getTitle(), (width - fontMetrics.stringWidth(message)) / 2, height / 2
                         - fontHeight);
               message = "The Training Mission";
               offGraphics.drawString(message, (width - fontMetrics.stringWidth(message)) / 2, height / 2);
               message = "Name of Author";
               offGraphics.drawString(message, (width - fontMetrics.stringWidth(message)) / 2, height / 2
                         + fontHeight);
               message = "Original Copyright 1998-1999 by Mike Hall";
               offGraphics.drawString(message, (width - fontMetrics.stringWidth(message)) / 2, height / 2
                         + (fontHeight * 2));
               if (!loaded)
                    message = "Loading sounds...";
                    int barWidth = 4 * fontWidth + fontMetrics.stringWidth(message);
                    int barHeight = fontHeight;
                    int startX = (width - barWidth) / 2;
                    int startY = 3 * height / 4 - fontMetrics.getMaxAscent();
                    offGraphics.setColor(Color.black);
                    offGraphics.fillRect(startX, startY, barWidth, barHeight);
                    offGraphics.setColor(Color.gray);
                    if (clipTotal > 0)
                         offGraphics.fillRect(startX, startY, (barWidth * clipsLoaded / clipTotal), barHeight);
                    offGraphics.setColor(Color.white);
                    offGraphics.drawRect(startX, startY, barWidth, barHeight);
                    offGraphics
                              .drawString(message, startX + 2 * fontWidth, startY + fontMetrics.getMaxAscent());
               else
                    message = "Game Over";
                    offGraphics.drawString(message, (width - fontMetrics.stringWidth(message)) / 2, height / 4);
                    message = "'S' to Start";
                    offGraphics.drawString(message, (width - fontMetrics.stringWidth(message)) / 2, height / 4
                              + fontHeight);
          else if (paused)
               offGraphics.setColor(Color.white);
               message = "Game Paused";
               offGraphics.drawString(message, (width - fontMetrics.stringWidth(message)) / 2, height / 4);
     public String getTitle() {
          System.out.print(title);
          return title;
     public void setTitle(String title) {
          this.title = title;
}displayInfoScreen method in class A calls out for getTitle( ) to be displayed on an applet as an initial display string for the application.
The instance variable title is set by setTitle method which is called out in class testA as follow,
public class testA extends TestCase
      * testASprite constructor comment.
      * @param name
      *          java.lang.String
     public testA(String name)
          super(name);
      * Insert the method's description here.
      * @param args
      *          java.lang.String[]
     public static void main(String[] args)
          junit.textui.TestRunner.run(suite());
          // need to figure out how to get rid of the frame in this test
          System.exit(0);
     public static Test suite()
          return new TestSuite(testA.class);
      * Basic create and simple checks
     public void testCreate()
          A theGame = new A();
          assertNotNull("game was null!", theGame);
      * Basic create and simple checks
     public void testInit()
          A theGame = new A();
          Frame gameFrame = new Frame("THE GAME");
          gameFrame.add(theGame);
          int width = 640;
          int height = 480;
          gameFrame.setSize(width, height);
          // must pack to get graphics peer
          gameFrame.pack();
          theGame.resize(width, height);
          theGame.setTitle("TEST THE GAME");
          theGame.init();
          assertEquals("ASprite width not set", A.width, width);
          gameFrame.dispose();
          gameFrame.remove(theGame);
}Basically, class testA invokes the init( ) method in class A and start the applet application. However, it displays a white blank display. If I change the getTitle( ) in the displayInfoScreen method to a fixed string, it works fine. Did I forget anything as far as using getter & setter method? Do I have to specify some type of handle to sync between setter and getter between two classes? Any feedback will be greatly appreciated.
Thanks.

Your class A extends runnable which leads me to believe that this is a multi-threaded application. In that case, title may or may not be a shared variable. Who knows? It's impossible to tell from what you posted.
Anyway, what is happening is that your applet is being painted by the JFrame before setTitle is called. After that, who knows what's happening. It's a complicated application. I suspect that if you called setTitle before you added the applet to the frame, it would work.

How to disable Format Warning when displaying JSP in Excel under MS-Office

We have an application running in WebSphere 6.0 container, the application displays jsp data in Excel, it had no problem before MS-Office 2007 was install. However, after MS-Office 2007 is used, following format warning dialog box is always displayed:
The file you are trying to open, Requests[1].xls, is in a different format than specified by the file extension.
Verify that the file is not corrupted and is from a trusted source before opening the file.
The user has to click the "Yes" button before the Excel report can be successfully displayed. This is not acceptable by our production users, and I need your helps to get rid of this dialog box.
The application uses struts. The Action class retrieves data from database and the data is forward to the result jsp
in an data object set in an attribute of the session's Request object. The Action class also set the display info, such as the contentType,etc., in session's Response object (please see below for details).
The result jsp retrieves data from the data object and display in Excel according to the display info provided in the
session response object.
To eliminate any possible problem that may be caused by the data, I have simplified the result jsp by removing original
codes (such as data object forwarded from Action, and Tag Library, etc.), and just hardcoded few data for displaying in Excel, however, the same format warning box still always shows up.
My Action class set display info as below:
response.setContentType("application/vnd.ms-excel");
response.setHeader("Expires", "0");
response.setHeader("Cache-Control","must-revalidate, post-check=0, pre-check=0");
response.setHeader("Pragma", "public");
response.setHeader("content-disposition","attachment; filename=Requests.xls");
My simplified result jsp is listed below:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<HTML>
<HEAD>
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>

<TITLE></TITLE>
</HEAD>
<BODY>
<TABLE border="1">
     <TBODY>
     <TR>
     <td><p align='left'>myData1</p></td>
     <td><p align='left'>myData2</p></td>
     <td><p align='left'>myData3</p></td>
     <td><p align='left'>myData4</p></td>
     </TR>
     </TBODY>
</TABLE>
</BODY>
</HTML>
So, I reduced the result jsp to contain only few hardcoded data, but the format warning always shows up. Is it caused by inconsistency between the MS-Office 2007 browser and the JSP engine in WebSphere 6.0 Web container? Need your help to resolve this problem.
Thanks in advance.

That's the caveat of fooling your webbrowser and Excel with a plain HTML page along an Excel content-type and Excel extension.
Don't do that. That's plain stupid. Provide a real binary Excel file. You can create one using Apache POI HSSF or Andy Khan's JExcelAPI. Alternatively -and more recommended in case of large reports-, just use the CSV format. It's easy to create a CSV file in 20 lines of code and Excel perfectly understands CSV formats. Don't forget to change content-type to CSV.

Get dynamic values in Jsp fom Applet

Hi,
Mine is not a unique question, its been asked many times on the same forum but still I havent got any satisfactory answer so I am putting this again.
I have one applet, it is been loaded from jsp. Applet uses double buffering and its values are changing constantly.
Now my question arises here, In my jsp i have one button on the click of that button I am calling some other jsp passing some of jsp values in URL. I also want to pass one of the value of applet to jsp so it can pass to next jsp or to do something that next jsp automatically gets the new value.
I thought for Applet-servlet communication but my concerns are,as my applet is being refreshed continuously(around every 1 sec) and the value which i have to pass is changing every second and I dont know when user will click on the button of jsp so to pass that value of applet i have to do applet-servlet communication every second and that does not suit me as it consumes lot of time.
Can you suggest me any other solution so I can send value through jsp whenever button is clicked.
Thanks
Taral Shah

HI Senthil Babu
Thanks for your reply.
But applet is very important for my application as i am showing some graphical representation on it. So I have to use applet. Now you told that i have to make temporary files on client's macvhine. You mean to say each time I have to store that value on client's pc through File I/O.
Is that? but that is also problematic 'cause it consimes much time and my application deals in milli seconds.
Pl. guide me considering that time is much important for my application so solution should not consume much time.
Thanks again,
Taral Shah

The requested URL /pls/portal/display.jsp was not found on this server.

Hi,
I managed to get ultrasearch running now. The crawling process seems to run smooth. Executing a search gives me the correct result. However, i can not display the documents that are listed in the resultpage.
The link to the document is like this:
http://myportal/pls/portal/display.jsp?type=file&f_url=C:\ultra_docs\sultan\filetransfer\htc\site.doc
The path in the url seems ok to me.
Cliking on this link gives me the following error:
The requested URL /pls/portal/display.jsp was not found on this server.
Please, help me out here :/
mvg
Bram

I just tested it by accessing the search page with the following url:
http://myportal/ultrasearch/query/search.jsp
This gives me the same result and the links to the actual documents work fine now too! But it is not working from within portal, the links generated by the ultrasearch portlet give me an error.
The requested URL /pls/portal/display.jsp was not found on this server.
Please Help me Out
thx

How to display FileDialog in applet?

Hi all,
I looked FileDialog constructors but only Frame can be the owner of the dialog? Is there a way to do display it in applet?
Thank you.

Try:
JOptionPane.getFrameForComponent(this);
Remember:
Applets need to be signed to access the file system.

Display .gif In Applet Problem

I have been making a game. Very simply, the game has a main class and another truely important class that extends JFrame, it is the map. In it i need to upload .gif files and display them. It worked up until recently because i needed to make a sepperate class. I know how to use the getImage() for Images and the the way for ImageIcons, but for some reason, they never display (they display just whiteness). My Code is as follows
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import java.io.*;
// when this puppy reads from a file, it'll be able to have 55 15 x 15 terrains per row
// 35 15 x 15 terrains per column
// arrows by everythign that u would need to consider in finding the problem
// this is not the main class
public class GameMap extends JPanel implements MouseListener, MouseMotionListener, KeyListener{
     public static final int MAX_BULLETS = 200;
     public static final int MAX_PLAYERS = 50;
     public static final int SPLAT_SIZE = 15;
     public static final int PLAYER_SIZE = 15;
     public static final int MAX_MESSAGES = 10;
     public static final int ROBOT_SIZE = 15;
     private static final int rowTerrains = 35;
     private static final int columnTerrains = 55;
     private static int currentBullets = 0;
     private static int currentPlayers = 0;
     private static int bulletRotation = 0;
     private static int aimX, aimY;
     private boolean mapLoaded;
     private boolean writingMessage;
     private boolean imagesLoaded;
     private int messageRotation;
     private int tileCoord;
     private String messageText = "";
     private String currentMap;
    private Bullet bullet[] = new Bullet[MAX_BULLETS];
    private Player player[] = new Player[MAX_PLAYERS];
    private Message message[] = new Message[MAX_MESSAGES];
    private Color backgroundColor = new Color(81, 141, 23);
    private Image offscreenMap; // offscreen image of map
    private Graphics mapGraphics;
     private ImageIcon yellowSplat1, yellowSplat2, yellowSplat3, yellowSplat4, yellowSplat5, bluePlayerBack, bluePlayerFront, bluePlayerRight, bluePlayerLeft, grass, tree, mountain, robot1;
     private Terrain terrain[] = new Terrain[(rowTerrains * columnTerrains)];
     public GameMap(){
          this(800, 450);
     public GameMap(int width, int height){
          addMouseListener(this);
          addMouseMotionListener(this);
          addKeyListener(this); // use method requestFocusInWindow() for this to work
          setPreferredSize(new Dimension(width, height));
          setBackground(backgroundColor);
          for (int x = 0; x < bullet.length; x++){
               bullet[x] = new Bullet();
          for (int x = 0; x < player.length; x++){
               player[x] = new Player();
          for (int x = 0; x < message.length; x++){
               message[x] = new Message();
          for (int x = 0, currentX = 0, currentY = 0; x < (rowTerrains * columnTerrains); x++){
               terrain[x] = new Terrain();
               terrain[x].setX(currentX);
               terrain[x].setY(currentY);
               currentX += 15;
               if (currentX > columnTerrains * 15){
                    currentX = 0;
                    currentY += 15;
          player[0].drawPlayer(0, 0);
          //loadMap("Map1.txt"); // this is called to load the map right when this object is initialized
     public void paintComponent(Graphics g){
          super.paintComponent(g);
          Graphics2D g2d = (Graphics2D)g;
          Composite originalComposite = g2d.getComposite();
          if (imagesLoaded == false){
               yellowSplat1 = new ImageIcon("yellow1.gif");
               yellowSplat2 = new ImageIcon("yellow2.gif");
               yellowSplat3 = new ImageIcon("yellow3.gif");
               yellowSplat4 = new ImageIcon("yellow4.gif");
               yellowSplat5 = new ImageIcon("yellow5.gif");
               bluePlayerBack = new ImageIcon("BlueBack.gif");
               bluePlayerFront = new ImageIcon("BlueFront.gif");
               bluePlayerLeft = new ImageIcon("BlueLeft.gif");
               bluePlayerRight = new ImageIcon("BlueRight.gif");
               grass = new ImageIcon("Grass.gif");
               tree = new ImageIcon("Tree.gif");
               mountain = new ImageIcon("Mountain.gif");
               robot1 = new ImageIcon("Robot1.gif");
          if (mapLoaded == false){ // so a map is loaded when game is started
               loadMap("Map1.txt");
               mapLoaded = true;
          g.drawImage(offscreenMap, 0, 0, this);
          for (int x = 0; x < bullet[0].totalBullets; x++){
               if (bullet[x].getArrived()){
                    //find splat type and display it
                    g2d.setComposite(makeComposite(0.5f));
                    switch (bullet[x].getSplatType()){
                         case 0:
                              yellowSplat1.paintIcon(this, g2d, bullet[x].getDestX() - SPLAT_SIZE / 2, bullet[x].getDestY() - SPLAT_SIZE / 2);
                              break;
                         case 1:
                              yellowSplat2.paintIcon(this, g2d, bullet[x].getDestX() - SPLAT_SIZE / 2, bullet[x].getDestY() - SPLAT_SIZE / 2);
                              break;
                         case 2:
                              yellowSplat3.paintIcon(this, g2d, bullet[x].getDestX() - SPLAT_SIZE / 2, bullet[x].getDestY() - SPLAT_SIZE / 2);
                              break;
                         case 3:
                              yellowSplat4.paintIcon(this, g2d, bullet[x].getDestX() - SPLAT_SIZE / 2, bullet[x].getDestY() - SPLAT_SIZE / 2);
                              break;
                         case 4:
                              yellowSplat5.paintIcon(this, g2d, bullet[x].getDestX() - SPLAT_SIZE / 2, bullet[x].getDestY() - SPLAT_SIZE / 2);
                              break;
               else{
                    g2d.setComposite(originalComposite);
                    g2d.setColor(Color.yellow);
                    g2d.fillOval(bullet[x].getX(), bullet[x].getY(), 3, 3);
          g2d.setComposite(originalComposite);
          g.setColor(Color.yellow);
          for (int x = 0; x < player[0].totalPlayers; x++){
               if (player[x].getPlayerPosition().equals("Back")){
                    bluePlayerBack.paintIcon(this, g2d, player[x].getX(), player[x].getY());
               else if (player[x].getPlayerPosition().equals("Right")){
                    bluePlayerRight.paintIcon(this, g2d, player[x].getX(), player[x].getY());
               else if (player[x].getPlayerPosition().equals("Left")){
                    bluePlayerLeft.paintIcon(this, g2d, player[x].getX(), player[x].getY());
               else if (player[x].getPlayerPosition().equals("Front")){
                    bluePlayerFront.paintIcon(this, g2d, player[x].getX(), player[x].getY());
               else{
                    g2d.fillOval(player[x].getX(), player[x].getY(), 15, 15);
          if (writingMessage){
               g2d.setColor(new Color(0, 0, 130));
               g2d.setComposite(makeComposite(0.5f));
               g2d.draw3DRect(8, 7, 800, 17, true);
               g2d.setComposite(originalComposite);
               g2d.setColor(Color.yellow);
               g2d.drawString(messageText, message[0].getX(), 20);
          for (int x = 0; x < MAX_MESSAGES; x++){
               if (message[x].isDisplayed()){
                    g2d.drawString(message[x].getMessage(), message[x].getX(), message[x].getY());
     private AlphaComposite makeComposite(float alpha) {
          int type = AlphaComposite.SRC_OVER;
          return(AlphaComposite.getInstance(type, alpha));
     public void drawBullet(int aimX, int aimY){
          bullet[bulletRotation].drawBullet(player[0].getX() + PLAYER_SIZE / 2, player[0].getY() + PLAYER_SIZE / 2, aimX, aimY);
          player[0].setPlayerPosition(bullet[bulletRotation].getPlayerPosition());
          bulletRotation++;
          if (bulletRotation >= MAX_BULLETS){
               bulletRotation = 0;
     public void loadMap(String map){
          mapLoaded = false;
          currentMap = map;
          try{
               BufferedReader in = new BufferedReader(new FileReader(map));
               String input, string1, string2;
               for (int x = 0; x < terrain.length; x++){
                    terrain[x].setFilled(false);
               for (int x = 0, currentArray; x < terrain.length; x++){
                    if ((input = in.readLine()) != null) {
                         StringTokenizer st = new StringTokenizer(input);
                         currentArray = Integer.parseInt(st.nextToken());
                         terrain[currentArray].setTerrainType(st.nextToken());
                         terrain[currentArray].setFilled(true);
                    else{
                         break;
               in.close();
               offscreenMap = createImage(size().width, size().height);
               mapGraphics = offscreenMap.getGraphics();
               //mapGraphics.clearRect(0, 0, size().width, size().height);
               // everything from here down is to be painted to mapGraphics... but it doesn't get this far cuz of an error
               for (int x = 0; x < terrain.length; x++){
                    if (terrain[x].getTerrainType().equals("Grass")){
                         grass.paintIcon(this, mapGraphics, terrain[x].getX(), terrain[x].getY());
                         System.out.println("terrain(" + x + ") is Grass");
                    else if (terrain[x].getTerrainType().equals("Tree")){
                         tree.paintIcon(this, mapGraphics, terrain[x].getX(), terrain[x].getY());
                         System.out.println("terrain(" + x + ") is Tree");
                    else if (terrain[x].getTerrainType().equals("Mountain")){
                         mountain.paintIcon(this, mapGraphics, terrain[x].getX(), terrain[x].getY());
                         System.out.println("terrain(" + x + ") is Mountain");
          catch (FileNotFoundException e){
               System.out.println("Map not found");
          catch (IOException e){
               System.out.println("IOException Error!");
          // **** mouse Listener ****//
     public void mouseClicked(MouseEvent e){}
     public void mousePressed(MouseEvent e){}
     public void mouseReleased(MouseEvent e){
          if (e.getButton() == 1){
               //System.out.println("player[0].movePlayer(" + e.getX() + ", " + e.getY() + ")");
               aimX = e.getX();
               aimY = e.getY();
               movePlayer(aimX, aimY);
          else if (e.getButton() == 3){
               aimX = e.getX();
               aimY = e.getY();
               drawBullet(aimX, aimY);
     public void mouseEntered(MouseEvent e){
          if (isFocusOwner() != true){
               requestFocusInWindow();
     public void mouseExited(MouseEvent e){}
     // **** end mouse listener ****//
     // **** mouse motion listener ****//
     public void mouseDragged(MouseEvent e){}
     public void mouseMoved(MouseEvent e){}
     // **** end mouse motion listener ****/
     public void keyPressed(KeyEvent e){}
     public void keyReleased(KeyEvent e){}
     public void keyTyped(KeyEvent e){}
}I removed a few unnecessary methods from this code to make it easier to view. EVERYTHING works except for the images displaying. The reason i'm having this problem now is i just redid my workspace and copied the code and i think some glitch stopped it from compiling correctly all along so now i experience this problem in the applet viewer. Though, even before, i couldn't get anything to display in an applet.
And yes, everything is in the same place as the html file.
Thanks for your help!

Here's a way to keep track of and paint images with a simple Rectangle array. And also a way to remove lengthy initialization code blocks from paintComponent. Move the images by moving the rectangles.
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.net.*;
import javax.imageio.ImageIO;
import javax.swing.*;
public class GameMapRx
    public static void main(String[] args)
        JFrame f = new JFrame();
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.getContentPane().add(new GameMapPanel());
        f.setSize(400,400);
        f.setLocation(200,200);
        f.setVisible(true);
class GameMapPanel extends JPanel
    Image[] images;
    Rectangle[] rects;
    boolean firstTime;
    final int PAD;
    public GameMapPanel()
        loadImages();
        firstTime = true;
        PAD = 20;
    protected void paintComponent(Graphics g)
        super.paintComponent(g);
        Graphics2D g2 = (Graphics2D)g;
        int w = getWidth();
        int h = getHeight();
        if(firstTime)
            initializeGameMap(w, h);
        for(int i = 0; i < rects.length; i++)
            Rectangle r = rects;
g.drawImage(images[i], r.x, r.y, this);
g2.draw(r);
private void loadImages()
String path = "images/duke/";
String ext = ".gif";
images = new Image[10];
for(int i = 0; i < images.length; i++)
try
URL url = getClass().getResource(path + "T" + (i + 1) + ext);
images[i] = ImageIO.read(url);
catch(MalformedURLException mue)
System.out.println("Bad URL: " + mue.getMessage());
catch(IOException ioe)
System.out.println("Unable to read: " + ioe.getMessage());
private void initializeGameMap(int w, int h)
rects = new Rectangle[images.length];
int imageWidth = images[0].getWidth(this);
int imageHeight = images[0].getHeight(this);
int cols = (w - 2*PAD) / imageWidth;
int xInc = imageWidth + (w - cols * imageWidth) / (cols + 1);
int x0 = (w - cols * imageWidth -
(cols - 1) * ((w - cols * imageWidth) / (cols + 1))) / 2;
for(int i = 0; i < images.length; i++)
int x = x0 + xInc * (i % cols);
int rows = i / cols;
int y = PAD + (imageHeight + PAD) * rows;
rects[i] = new Rectangle(x, y, imageWidth, imageHeight);
firstTime = false;

How to include applet in jsp if applet.class file in another folder

hi,
i'm getting problem when my applet.class file is not with its appropriate jsp file. i'm using jsp :plugin tag.it work when jsp file n apllet.class file at same location.
in short my jsp file is at location /webapps/jsp-examples/myproject/includeDemo.jsp
n applet i want in a WEB-INF folder.
Plz help me to solve this..
or give me other way that an applet can be loaded in jsp page n applet should be in WEB-INF file..
Help me for this

http://forum.java.sun.com/thread.jspa?threadID=5148764&messageID=9556205

How To Pass the value from JSP to Applet

plz reply how can we pass the value from the JSP to Applet ...the applet is embedded in JSP page....

Hi,
<applet codebase = "."
archive = foo.jar"
code = "com.bar"
name = "bar"
id = "bar"
width = "<%=Request["width"] %>"
HEIGHT = "<%=Request["appHeight"] %>"
hspace = "0"
vspace = "0"
align = "middle"
alt     = "Applet is Loading..."
>
     <param name="LANGUAGE"                value="<%=Request["lan"] %>">
     <param name="LOGOUT_USER_URL"           value="EndSession.asp">
     <param name="DATA_READ_INTERVAL"      value="10000">
     <param name="REFRESH_INTERVAL"           value="5000">
     <param name="DEFAULT_FONT"           value="Arial">
</applet>
pass values @ ur html or jsp page to Applet as parameters.
Refer above code. By using getParameter() method of Applet, u can take values inside applet.

IE don't display JSP output. It pop up download dialong and open Dreamwea

IE don't display JSP output. It pop up download dialong and open Dreamweaver.
I dont' know why, but when run in Netscape is OK
Anyone please help.

Looks like your problem lies by the file associations, i.e. extension of your jsp file (.JSP) is associated in your operating system with DreamWeaver rather than with IE. If you are using Windows you should be able to change file associations, so that all web pages including JSP will be opened in your browser.

JSP to Applet Communication

Hello Java Guys,
We know how to communicate applet and servelt.But i have no idea on how to communicate JSP to applet.If anybody have any idea please let me know.Thanks in advance..
with cheers
Basha

HI,
When u use applet-servlet communication, servlet (which u've written in out.println()) writes the content in the streams,it get backs to the urlconnection.getOUtputStream(),u get only what written in out.println().
when u using applet-jsp communication, servletengine converts jsp-servlet,servlet writes the total content (which present in jsp page) in the streams.u get all the content including ur html tags.

Call a JSP from applet and display the results in the browser

Hello All,
I have written an applet which performs some functionality at the clinets browser. When the applets method finishes exectution, I would like to call
a jsp. The results of the JSP should be displayed like a normal page in the browser.
I tried creating a HttpURLConnection and calling the jsp but two things happened
1. The jsp call failed because the applet doesn't have a valid session id.
2. even if I disable the valid user check at the jsp, the results of the jsp are returned as a set of bytes to the applet. They are not displayed in the browser window.
Then I tried applet.getAppletContext().showDocument()... However with this api I cannot do a POST operation on the JSP with some input data because this takes only a URL as an input parameter.
Please help me in this problem and I will be very gratefull to you.
1. applet uses the same session id as the browser so that when applet makes a request to the jsp it does not get user invalid exception.
2. the results of the jsp are displayed on the browser and not given to the applet.
Thank you so much for your help.
regards,
Abhishek.

I hope this can help you
I made a package calls fun
and a clsss calls JspTestingFun
package fun;
public class JspTestingFun{
private String sample = "welcome to jsp";
//Access sample property
public String getSample() {
    return sample;
//Access sample property
public void setSample(String newValue) {
    if (newValue!=null) {
      sample = newValue;
}then I make a jsp file
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
<%@ taglib uri="http://java.sun.com/jstl/sql" prefix="sql" %>
<%@ page import = "fun.JspTestingFun"%>
<html>
<head>
<title>
jspTest
</title>
</head>
<jsp:useBean id="mytest" scope="session" class="fun.JspTestingFun" />
<jsp:setProperty name="mytest" property="*" />
<body bgcolor="#ffffff">
<%
mytest.getSample();
%>
<h1>
Just for testing
</h1>
<form method="post">
<br>Enter anything   : <input name="sample"><br>
<br><br>
<input type="submit" name="Submit" value="Submit">
<input type="reset" value="Reset">
<br>
this what we get<jsp:getProperty name="mytest" property="sample" />
</form>
</body>
</html>

Display tree in applet

i have a program to convert Xml to tree structure. But i am not able to call it in JSP. So i want to convert to applet. how to convert it.
package TreeGen;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.FactoryConfigurationError;
import javax.xml.parsers.ParserConfigurationException;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import java.io.File;
import java.io.IOException;
import org.w3c.dom.Document;
import org.w3c.dom.DOMException;
import org.w3c.dom.Element;
// Basic GUI components
import javax.swing.JApplet;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTree;
// GUI components for right-hand side
import javax.swing.JSplitPane;
import javax.swing.JEditorPane;
// GUI support classes
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Toolkit;
import java.awt.event.KeyEvent;
import java.awt.event.WindowEvent;
import java.awt.event.WindowAdapter;
// For creating borders
import javax.swing.border.EmptyBorder;
import javax.swing.border.BevelBorder;
import javax.swing.border.CompoundBorder;
// For creating a TreeModel
import javax.swing.tree.*;
import javax.swing.event.*;
import java.util.*;
import java.applet.*;
public class TreeGen extends JPanel
     static Document document;
     boolean compress = false;
     static final int windowHeight = 660;
     static final int leftWidth = 300;
     static final int rightWidth = 640;
     static final int windowWidth = leftWidth + rightWidth;
     public TreeGen()
     EmptyBorder eb = new EmptyBorder(5,5,5,5);
     BevelBorder bb = new BevelBorder(BevelBorder.LOWERED);
     CompoundBorder cb = new CompoundBorder(eb,bb);
     this.setBorder(new CompoundBorder(cb,eb));
     JTree tree = new JTree(new DomToTreeModelAdapter());
     JScrollPane treeView = new JScrollPane(tree);
     treeView.setPreferredSize(
          new Dimension( leftWidth, windowHeight ));
     final
     JEditorPane htmlPane = new JEditorPane("text/html","");
     htmlPane.setEditable(true);
     JScrollPane htmlView = new JScrollPane(htmlPane);
     htmlView.setPreferredSize(
          new Dimension( rightWidth, windowHeight ));
     tree.addTreeSelectionListener(
          new TreeSelectionListener()
          public void valueChanged(TreeSelectionEvent e)
               TreePath p = e.getNewLeadSelectionPath();
               if (p != null)
               AdapterNode adpNode =
                    (AdapterNode) p.getLastPathComponent();
               htmlPane.setText(adpNode.content());
     JSplitPane splitPane =
          new JSplitPane( JSplitPane.HORIZONTAL_SPLIT,
                              treeView,
                              htmlView );
     splitPane.setContinuousLayout( false );
     splitPane.setDividerLocation( leftWidth );
     splitPane.setDividerSize(1);
     splitPane.setPreferredSize(
               new Dimension( windowWidth + 10, windowHeight+10 ));
     this.setLayout(new BorderLayout());
     this.add("Center", splitPane );
     //return menuBar;
     } // constructor
     public static void main(String argv[])
          DocumentBuilderFactory factory =
               DocumentBuilderFactory.newInstance();
          try {
          DocumentBuilder builder = factory.newDocumentBuilder();
          document = builder.parse("C:/Program Files/Apache Software Foundation/Tomcat 5.0/webapps/parser1/sample.xml");
               makeFrame();
          } catch (SAXException sxe){
               System.out.println("ERROR");
          Exception x = sxe;
          if (sxe.getException() != null)
               x = sxe.getException();
          x.printStackTrace();
          } catch (ParserConfigurationException pce) {
               pce.printStackTrace();
          } catch (IOException ioe) {
          ioe.printStackTrace();
     } // main
     public static void makeFrame()
          //JApplet app = new JApplet();
          //app.add
          JFrame frame = new JFrame("DOM Echo");
          frame.addWindowListener(
          new WindowAdapter() {
               public void windowClosing(WindowEvent e) {System.exit(0);}
          final TreeGen echoPanel =
          new TreeGen();
          frame.getContentPane().add("Center", echoPanel );
          frame.pack();
          Dimension screenSize =
          Toolkit.getDefaultToolkit().getScreenSize();
          int w = windowWidth + 10;
          int h = windowHeight + 10;
          //TreeGen tg = new TreeGen();
          //MenuDemo demo = new MenuDemo();
          //frame.setJMenuBar(demo.createMenuBar());
          //frame.setContentPane(demo.createContentPane());
          //Display the window.
          frame.setSize(w, h);
          frame.setVisible(true);
     } // makeFrame
     static final String[] typeName = {
          "none",
          "Element",
          "Attr",
          "Text",
          "CDATA",
          "EntityRef",
          "Entity",
          "ProcInstr",
          "Comment",
          "Document",
          "DocType",
          "DocFragment",
          "Notation",
     static final int ELEMENT_TYPE = 1;
     static final int ATTR_TYPE = 2;
     static final int TEXT_TYPE = 3;
     static final int CDATA_TYPE = 4;
     static final int ENTITYREF_TYPE = 5;
     static final int ENTITY_TYPE = 6;
     static final int PROCINSTR_TYPE = 7;
     static final int COMMENT_TYPE = 8;
     static final int DOCUMENT_TYPE = 9;
     static final int DOCTYPE_TYPE = 10;
     static final int DOCFRAG_TYPE = 11;
     static final int NOTATION_TYPE = 12;
static String[] treeElementNames = {
          "slideshow",
          "slide",
          "title", // For slideshow #1
          "slide-title", // For slideshow #10
          "item",
     boolean treeElement(String elementName) {
     for (int i=0; i<treeElementNames.length; i++) {
          //System.out.println(treeElementNames);
          if ( elementName.equals(treeElementNames[i]) )
          return true;
     return false;
     public class AdapterNode
     org.w3c.dom.Node domNode;
     public AdapterNode(org.w3c.dom.Node node)
          domNode = node;
     public String toString()
          String s = typeName[domNode.getNodeType()];
          String nodeName = domNode.getNodeName();
          if (! nodeName.startsWith("#"))
          s += ": " + nodeName;
          if (compress)
          String t = content().trim();
          int x = t.indexOf("\n");
          if (x >= 0) t = t.substring(0, x);
          s += " " + t;
          return s;
          if (domNode.getNodeValue() != null)
          if (s.startsWith("ProcInstr"))
               s += ", ";
          else
               s += ": ";
          // Trim the value to get rid of NL's at the front
          String t = domNode.getNodeValue().trim();
          int x = t.indexOf("\n");
          if (x >= 0) t = t.substring(0, x);
          s += t;
          return s;
     public String content()
          String s = "";
          org.w3c.dom.NodeList nodeList = domNode.getChildNodes();
          for (int i=0; i<nodeList.getLength(); i++)
          org.w3c.dom.Node node = nodeList.item(i);
          int type = node.getNodeType();
          //System.out.println(type);
          AdapterNode adpNode = new AdapterNode(node); //inefficient, but works
          if (type == ELEMENT_TYPE)
               if ( treeElement(node.getNodeName()) ) continue;
               s += "<" + node.getNodeName() + ">";
               s += adpNode.content();
               s += "</" + node.getNodeName() + ">";
          else if (type == TEXT_TYPE)
               s += node.getNodeValue();
          else if (type == ENTITYREF_TYPE)
               s += adpNode.content();
          else if (type == CDATA_TYPE)
               StringBuffer sb = new StringBuffer( node.getNodeValue() );
               for (int j=0; j<sb.length(); j++)
               if (sb.charAt(j) == '<')
                    sb.setCharAt(j, '&');
                    sb.insert(j+1, "lt;");
                    j += 3;
               else if (sb.charAt(j) == '&')
                    sb.setCharAt(j, '&');
                    sb.insert(j+1, "amp;");
                    j += 4;
               s += "<pre>" + sb + "\n</pre>";
          return s;
     public int index(AdapterNode child)
          int count = childCount();
          for (int i=0; i<count; i++)
          AdapterNode n = this.child(i);
          if (child.domNode == n.domNode) return i;
          return -1; // Should never get here.
     public AdapterNode child(int searchIndex)
          org.w3c.dom.Node node =
               domNode.getChildNodes().item(searchIndex);
          if (compress)
          int elementNodeIndex = 0;
          for (int i=0; i<domNode.getChildNodes().getLength(); i++)
               node = domNode.getChildNodes().item(i);
               if (node.getNodeType() == ELEMENT_TYPE
               && treeElement( node.getNodeName() )
               && elementNodeIndex++ == searchIndex)
               break;
          return new AdapterNode(node);
     public int childCount()
          if (!compress)
          return domNode.getChildNodes().getLength();
          int count = 0;
          for (int i=0; i<domNode.getChildNodes().getLength(); i++)
          org.w3c.dom.Node node = domNode.getChildNodes().item(i);
          if (node.getNodeType() == ELEMENT_TYPE
          && treeElement( node.getNodeName() ))
               ++count;
          return count;
     public class DomToTreeModelAdapter
     implements javax.swing.tree.TreeModel
     public Object getRoot()
          return new AdapterNode(document);
     public boolean isLeaf(Object aNode)
          AdapterNode node = (AdapterNode) aNode;
          if (node.childCount() > 0) return false;
          return true;
     public int getChildCount(Object parent)
          AdapterNode node = (AdapterNode) parent;
          return node.childCount();
     public Object getChild(Object parent, int index)
          AdapterNode node = (AdapterNode) parent;
          return node.child(index);
     public int getIndexOfChild(Object parent, Object child)
          AdapterNode node = (AdapterNode) parent;
          return node.index((AdapterNode) child);
     public void valueForPathChanged(TreePath path, Object newValue)
     private Vector listenerList = new Vector();
     public void addTreeModelListener(TreeModelListener listener)
          if ( listener != null
          && ! listenerList.contains( listener ) )
          listenerList.addElement( listener );
     public void removeTreeModelListener(TreeModelListener listener)
          if ( listener != null )
          listenerList.removeElement( listener );
     public void fireTreeNodesChanged( TreeModelEvent e )
          Enumeration listeners = listenerList.elements();
          while ( listeners.hasMoreElements() )
          TreeModelListener listener =
               (TreeModelListener) listeners.nextElement();
          listener.treeNodesChanged( e );
     public void fireTreeNodesInserted( TreeModelEvent e )
          Enumeration listeners = listenerList.elements();
          while ( listeners.hasMoreElements() )
          TreeModelListener listener =
               (TreeModelListener) listeners.nextElement();
          listener.treeNodesInserted( e );
     public void fireTreeNodesRemoved( TreeModelEvent e )
          Enumeration listeners = listenerList.elements();
          while ( listeners.hasMoreElements() )
          TreeModelListener listener =
               (TreeModelListener) listeners.nextElement();
          listener.treeNodesRemoved( e );
     public void fireTreeStructureChanged( TreeModelEvent e )
          Enumeration listeners = listenerList.elements();
          while ( listeners.hasMoreElements() )
          TreeModelListener listener =
               (TreeModelListener) listeners.nextElement();
          listener.treeStructureChanged( e );
pls help.
ramya

There's already some applet code in there, although it's commented out. Did you add that?
Anyway, the general principle for turning an app into an applet, is to replace the main() method with the Applet's (or JApplet's) init(), start(), and stop() methods. Also you won't be able to read data off the file system; use resources instead. (e.g., java.lang.Class.getResource)
I'm not sure what this has to do with JSP.
When you post code, please wrap it in [code][/code] tags.

Chess Piece display problem in applet

Hi,
I'm writing a chess game applet which will be played between to players over the internet. I'm currently working on the applet side at the moment and will develop the server side once I have completed the applet. I'm currently having problems displaying the actual chess pieces on the board at the moment. One of my design decisions was to make a Board class which extends a JPanel. I have painted the actual chess board squares within the Board JPanel. I then propose to draw the pieces on top of these squares (good design decsion? Can anyone suggest another way. I was thinking of having the images as a separate layer which will sit on top of the squares but wasn't sure how to implement it). The chess pieces are contained in a gif strip www.dur.ac.uk/j.d.p.murphy called ChessPieces02.gif . The problem I am having is to display several pieces at the same time. I lloked at a Java tutorial which suggested using g.clipRect() method to display a defined section of the strip (i.e. a single piece of a certain length). Below is the Board class that I am using.
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Board extends JPanel{
// Holds location of the mousePressed event
Point point = null;
// Size of a square square on the board
int square_size = 40;
// Mediatracker to monitor the loading of the images
MediaTracker tracker;
Image image;
void init() {
tracker = new MediaTracker(this);
image = Toolkit.getDefaultToolkit().getImage("ChessPieces02.gif");
tracker.addImage(image, 0);
try {
//Start downloading the images. Wait until they're loaded.
tracker.waitForAll();
} catch (InterruptedException e) {
e.printStackTrace();
throw new Error("error");
if (tracker.isErrorAny()) {
throw new Error("Could not load image");
addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent e) {
if (point == null)
point = new Point(0, 0);
int x = e.getX();
int y = e.getY();
System.out.println("X co-ord: " + x + " Y co-ord: " + y);
// Floor the x and y values to the nearest unit of 25
x = x - x % square_size;
y = y - y % square_size;
point.setLocation(x, y);
repaint();
System.out.println(point);
public void paintComponent(Graphics g) {
super.paintComponent(g); //paint background
System.out.println("Chess Board Paint");
// Loop to produce the black and white squares to represent the board
for(int jj = 0; jj < 8; jj ++){
for(int ii = 0; ii < 8; ii++){
if(ii % 2 == jj % 2)
g.setColor(Color.white);
else
g.setColor(Color.lightGray);
g.fillRect(ii * square_size, jj * square_size, square_size, square_size );
// Draw a highlighted square
if (point != null){
g.setColor(Color.green);
g.fillRect( (int)point.getX(), (int)point.getY(), square_size, square_size);
//imageStrip is the Image object representing the image strip.
//imageWidth is the size of an individual image in the strip.
//imageNumber is the number (from 0 to numImages)
// of the image to paint.
int stripWidth = image.getWidth(this);
int stripHeight = image.getHeight(this);
int imageWidth = stripWidth / 6;
System.out.println("Width = " + imageWidth);
g.clipRect(120, 0, imageWidth, stripHeight / 2);
g.drawImage(image, 0 * imageWidth, 0, this);
What code do i need to add more pieces to the board? I plan to make a ChessPiece array (8x8) which will holld all the chess pieces on the board. Should I hold this array in the board class to make drawing the pieces easier? Any other tips for game development would also be most welcome.
Thanks

cross post, I think.
http://forum.java.sun.com/thread.jsp?thread=496287&forum=406

Display images in applets

hi every body.
I want to display images in an applet when i invoke it from the jsp page . it is not working. the code is as follows.
<html>
<body>
<jsp:plugin type = "applet"
code ="Welcome.class"
width="475" height = "350" >
</jsp:plugin>
</body>
</html>
while the code of "Welcome.java" is as follows.
ImageIcon image = new ImageIcon("aa.gif");
JButton button = new JButton(image);
i have placed the aa.gif file in the same directory where i placed the Welcome.class and the jsp file.
when i run this program the i recieve the message that the applet is not loaded.
can some body help me how to place images in applets.
thanks.

You should be able to test that applet on you hard drive first. If it works check the case of the image file.
Web servers look for case. If you are asking for ImageIcon img = new ImageIcon("abc.gif") and what is loaded on your web server is "abc.GIF" it won't find it. Same goes for basic HTML tags like
<Img src=abc.gif>. But it will find it on you hard drive when you run the applet there.

Display JSP in applet

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