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JNLP I am getting the File Not found exception

srilatha nimmaneni
Greenhorn

Joined: Jun 22, 2009
Posts: 15
HI

I am new to JNLP
can any body help why i am getting this exception
srilatha nimmaneni
Greenhorn

Joined: Jun 22, 2009
Posts: 15
srilatha nimmaneni wrote:HI

I am new to JNLP
can any body help why i am getting this exception




this is the code i am writing while reading the normal text file this i am getting FileNotFoundException
BufferedReader br = new BufferedReader(new FileReader("C://FlashCardsData.ser"));

java.io.FileNotFoundException: http://localhost/MyJWS/MyQuiz.jnlp
at sun.reflect.GeneratedConstructorAccessor1.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection$6.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.net.www.protocol.http.HttpURLConnection.getChainedException(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at com.sun.deploy.net.BasicHttpRequest.doRequest(Unknown Source)
at com.sun.deploy.net.BasicHttpRequest.doRequest(Unknown Source)
at com.sun.deploy.net.BasicHttpRequest.doGetRequest(Unknown Source)
at com.sun.deploy.net.DownloadEngine.actionDownload(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getCacheEntry(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getCacheEntry(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getResource(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getResource(Unknown Source)
at com.sun.javaws.Launcher.updateFinalLaunchDesc(Unknown Source)
at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
at com.sun.javaws.Launcher.launch(Unknown Source)
at com.sun.javaws.Main.launchApp(Unknown Source)
at com.sun.javaws.Main.continueInSecureThread(Unknown Source)
at com.sun.javaws.Main$1.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.io.FileNotFoundException: http://localhost/MyJWS/MyQuiz.jnlp
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at java.net.HttpURLConnection.getResponseCode(Unknown Source)
... 18 more


can any tell me why iam getting this error, i am alredy jarsigned every thing correct only..
Paul Clapham
Bartender

Joined: Oct 14, 2005
Posts: 18126
    
    8

srilatha nimmaneni wrote:this is the code i am writing while reading the normal text file this i am getting FileNotFoundException
BufferedReader br = new BufferedReader(new FileReader("C://FlashCardsData.ser"));


Actually if you look at the stack trace more closely you should notice a couple of things about that:

(1) The "file" that can't be found isn't that file, it is http://localhost/MyJWS/MyQuiz.jnlp.

(2) The code that can't find the file isn't that code, it is something else entirely.

It's worth looking at the stack trace carefully, as it often provides more information than just the error message. In this case the message is that your application can't be launched because the URL http://localhost/MyJWS/MyQuiz.jnlp isn't responding. So check your server and make sure that it's running and that you have the correct URL.
srilatha nimmaneni
Greenhorn

Joined: Jun 22, 2009
Posts: 15
I wtiten this is java class

import java.util.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;

public class FlashTest
{
JFrame frame1;
JTextArea txtA, txtQ;
JButton btnShowAns, btnNext;
JPanel panel1;
JScrollPane scroller1, scroller2;
ArrayList<String> strArray = new ArrayList<String>();
static int count = 0;
static int i = 0;

void buildGUI()
{
frame1 = new JFrame("Test Your Knowledge");

txtQ = new JTextArea(20, 30);
txtA = new JTextArea(20, 30);
txtQ.setLineWrap(true);
txtA.setLineWrap(true);
txtA.setVisible(false);
scroller1 = new JScrollPane(txtQ);
scroller2 = new JScrollPane(txtA);
//scroller1.add(txtQ);
//scroller2.add(txtA);
scroller1.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
scroller1.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
scroller2.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
scroller2.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
btnShowAns = new JButton("Show Answer");
btnNext = new JButton("Next Question");
panel1 = new JPanel();
//panel1.add(txtQ);
//panel1.add(txtA);
panel1.add(scroller1);
panel1.add(scroller2);
panel1.add(btnShowAns);
panel1.add(btnNext);

frame1.getContentPane().add(panel1);
frame1.setSize(800, 570);
frame1.setVisible(true);
frame1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

btnShowAns.addActionListener(new ShowAnsListener());
btnNext.addActionListener(new NextListener());

try
{
BufferedReader br = new BufferedReader(new FileReader("FlashCardsData.ser"));

String line = null;
while((line = br.readLine())!=null)
{
String[] splitStrings = line.split("/");
for(String elt:splitStrings)
{
strArray.add(elt);
}
}
}
catch(Exception e)
{
System.out.println("Exception in buildGUI: " + e);
}

fillText();
}

void fillText()
{
i++;
if(i<(strArray.size()-2))
{
txtQ.setText((String) strArray.get(count));
txtA.setText((String) strArray.get(++count));
count++;

}
else
{
System.out.println("Sorry! No more data here!");
JOptionPane.showMessageDialog(null, "This is the last question.");
//JOptionPane.showOptionDialog(null, "Sorry!", "Create New");
}
}

void toggleButton()
{
if((btnShowAns.getText()).equals("Show Answer"))
{
btnShowAns.setText("Hide Answer");
txtA.setVisible(true);
}
else
{
btnShowAns.setText("Show Answer");
txtA.setVisible(false);
}
}

class ShowAnsListener implements ActionListener
{
public void actionPerformed(ActionEvent ae)
{
toggleButton();
}
}

class NextListener implements ActionListener
{
public void actionPerformed(ActionEvent ae)
{
try
{
toggleButton();
fillText();

}
catch(Exception e)
{
System.out.println("Exception in NextListener: " + e);
JOptionPane.showMessageDialog(null, "This is the last question.");
}
}
}

public static void main(String[] str)
{
FlashTest ft = new FlashTest();
ft.buildGUI();
}


}
srilatha nimmaneni
Greenhorn

Joined: Jun 22, 2009
Posts: 15
<?xml version="1.0" encoding="utf-8"?>

<jnlp spec="0.2 1.0"
codebase="http://localhost/MyJWS"
href="MyQuiz.jnlp">

<information>
<title>MyQuiz App</title>
<vendor>Me</vendor>
<homepage href="index.html"/>
<description>MyQuiz JWS App</description>

<offline-allowed/>
</information>

<resources>
<j2se version="1.3+"/>
<jar href="FlashTest.jar"/>
</resources>
<security><all-permissions/></security>


<application-desc main-class="FlashTest"/>
</jnlp>
srilatha nimmaneni
Greenhorn

Joined: Jun 22, 2009
Posts: 15
<html>
<body>
<center><br><a href="MyQuiz.jnlp">IDEA Launch Appln</a></center>
</body>
</html>
 
I agree. Here's the link: http://aspose.com/file-tools
 
subject: JNLP I am getting the File Not found exception
 
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