Opening Local Apps through a Java web app

Hello, I have a local application on my C: drive that I would like to launch by clicking on a link in a web app of mine. Can anyone point me in the right direction of how to do this? For instance, if I had the following:
C:/Program Files/My App/app.exe
How would I launch this from a completely separate web app that I have developed?

By letting the link open a website that has a signed applet that has the premissions to invoke Runtime.exec(). In other words: no conveniant way, thankfully.

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I can't open or save file with Java Web Start

Hi,
i can't open or save file with Java Web Start:
import java.io.*;
import java.util.*;
public class MetaDataFileCreator {
public String fileNameSpace = null;
public String fileName = null;
protected Properties file = null;
public MetaDataFileCreator(String fileNameSpace, String fileName) {
this.fileNameSpace = fileNameSpace;
this.fileName = fileName;
public void createMetaDataFile() {
try {
System.out.println("file METADATA");
ClassLoader cl = this.getClass().getClassLoader();
String nameFileMetaData = fileNameSpace + fileName + ".txt";
FileOutputStream fileOS = new FileOutputStream(cl.getResource(nameFileMetaData).getFile());
file = new Properties();
file.setProperty("aaaaa", "aaaa");
file.store(fileOS, "");
fileOS.close();
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System.out.println("Error writing metadata-file: " + e);
System.exit(1);
e.printStackTrace();
I have try also to open a file like this:
ClassLoader cl = this.getClass().getClassLoader();
file.load(cl.getResourceAsStream(nameFile));
also like this:
try {
fos = (FileOpenService)ServiceManager.lookup("javax.jnlp.FileOpenService");
fss = (FileSaveService)ServiceManager.lookup("javax.jnlp.FileSaveService");
} catch (UnavailableServiceException e) {
fss = null;
fos = null;
System.out.println("Error with JNLP");
System.exit(1);
if (fss != null && fos != null) {
try {
// get a FileContents object to work with from the
// FileOpenService
FileContents fc = fos.openFileDialog(null, null);
//FileContents newfc2 = fss.saveAsFileDialog(null, null, fc);
// get the OutputStream and write the file back out
if (fc.canWrite()) {
// don't append
os = fc.getOutputStream(false);
} catch (Exception e) {
e.printStackTrace();
also like this:
File f = new File((System.getProperty("user.home")+"x.txt").toString());
FileOutputStream fileX = new FileOutputStream(f);
OutputX = new PrintWriter(new BufferedWriter(new OutputStreamWriter(fileX, "UTF8")));
OutputX.println(....
but it doesn't work with Java Web Start.
Can someone help me?
How can I open or save file?
thank you.
Sebastiano

Did you specify <all-permissions/> in your JNLP file? Did you sign your code? What error are you getting?

Maximum Open Cursors Exceeded - Oracle 9 & Java Web Server 6.1

We are facing this problem - maximum open cursors exceeded after migrating our application to Sun Java System Web Server 6.1
We were not facing this problem with our earlier web server
Can anybody let us know - is there any setting we need to do to avoid this.
The current setting for this attribute in the database is quite huge - close to 2000
One of the "webservd" sessions, (web server user) exceeded this value

See my reply in your duplicated post:
http://swforum.sun.com/jive/thread.jspa?threadID=57989&messageID=220483#220483

Open an applet through a java code

i have developed a java frame application. i want to open in addition to the frame an applet to display some info..is it possiblle to call a runtime.exec command to open the applet.
The applet is not part of the executing code

import java.io.IOException;
String appviewPath="C:/Program Files/Java/jdk1.5.0_08/bin/appletviewer.exe";
String url="<url>";
try
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I migrated my application from iPlanet 6.0 to Sun one web server 6.1 and after that I'm unable to open any .shtml file from my browser. This issue is not with all browser but only with few.
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SS

What is the exact version of Web Server you are using? Should be in the error logs or try $start -version
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Also verify the steps given in http://docs.sun.com/source/817-1832-10/pgshtml.html
mime.types should have :
type=magnus-internal/parsed-html exts=shtml
obj.conf should have :
Service fn="shtml_send" type="magnus-internal/parsed-html" method="(GET|HEAD)"
When you activate parsing, magnus.conf should have :
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Java Web Start opening code not app

For the past year I have had no problems opening up *.jnlp files with Java Web Start. Starting last week when clicking on any link to launch a Java app I get the code opening up in TextEdit.
For example when I click on 'Welcome to Web Start' on this page: http://developer.apple.com/java/javawebstart/ I see (just to start)
<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="1.0+" codebase="http://developer.apple.com/java/javawebstart/apps/welcome" href="JWS_Demo.jnlp">
<information>
<title>Welcome to Web Start!</title>
<vendor>Apple Computer, Inc.</vendor>
<homepage href="http://developer.apple.com/java/javawebstart" />
<offline-allowed />
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ISSUE
After the Java update, jnlp files are opened by TextEdit and not Java Web Start.
SOLUTION
1. Find the jnlp file on your machine
2. Get Info (Cmd+I)
3. Expand the “Open with” section
4. Select “Other”
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8. Click the “Change All...” button

M trying to open a java web site its not opening and server goes to java website...??

m trying to open a java web site its not opening and server goes to java web sites ...........???

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ftp

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Did a quick search on your post for '?' and did not find one. Did you have a question?
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iMac 2007 OS X 10.6.8: updated as of 06-29-2013
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Air Playit
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How to convert existed standalone APP to java web start app?

hello:
I didn't find useful information about how to convert an existed java
app into app which can be launched using java web start from the sun java developer's guide.
I have designed a simple java applcation and want to lauch this program with
java web start techniques(on local machine only). Is there any easy way that i could convert my program to the one which support java web start, so i can double click the *.jnlp file to launch my java applcation.
thank you
-Daniel Mark

i just found a great place to resolve my question.
If you had the same question, please refer to
http://www-106.ibm.com/developerworks/java/library/j-webstart/
thank you
-Daniel

Screen Saver crashing my Java Web Start app

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>
I've written a Java Web Start ... . The only problem is that there are a couple of people who from time to time find that the application has crashed when they unlock their Windows screen saver. >What screensaver(s)? Some important distinctions might be
- Windows standard savers (the savers supplied with the OS, if so, do they all use Open-GL or all use...?)
- Windows compatible, 3rd party savers.
- Saverbeans screensavers (Java based). E.G. <https://screensavers.dev.java.net/>

Java Web Start.app, apparent problems.

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http://java.com/en/download/faq/java_webstart.xml
See also...
http://www.digistamp.com/t3runMac.htm

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IlaneMarie wrote:
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My program can't find the text file I'm trying to open in my stand-alone java app. I am specifying it like this:
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It is in the same directly as the class files. It won't find it when it's in a jar file either. I had a similar problem with an applet a lont time ago, but that turned out to be a security issue, which I assume normal apps don't have.
So, what's up with this?

If system become larger, there are duplicated files
can be found in different directories.
Using classpath may cause problem, if there are
duplicated file name.
If you are coding, you should know exact location of
the file to be opened.
"system become larger" - huh? You control the classpath on a per-app basis, not one huge monolithic classpath containing all jars/folders for all apps.
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Opening Local Apps through a Java web app

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