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Java Forum / General / July 2006JNLP on IE
Hi all, I am new to using Java Web Start and writting .jnlp files and am running into some problem. I have written this .jnlp file to deploy my application: --------------------------- <?xml version="1.0" encoding="UTF-8"?> <jnlp spec="1.0+" codebase="http://myweb..." href="Clear.jnlp"> <information> <title>Clear</title> <vendor>Me</vendor> <offline-allowed/> </information> <security> </security> <resources> <j2se version="1.3+"/> <jar href="Clear.jar" main="true"/> </resources> <application-desc> <argument>-java</argument> <argument>-classpath</argument> <argument>classes</argument> <argument>-classname</argument> <argument>source.Version1</argument> </application-desc> </jnlp> ------------------------------------------ The problem is that when I run the file on Firefox it does what it is supposed to, deploys the program, however, when I try it on IE it just displays the XML text above and it does not launch. Any ideas??? Jay ... > I am new to using Java Web Start and writting .jnlp files and am > running into some problem. ... > The problem is that when I run the file on Firefox it does what it is > supposed to, deploys the program, however, when I try it on IE it just > displays the XML text above and it does not launch. Any ideas??? IE has problems with JNLP files when no Java Plug-In is installed, but the symptoms do not match yours and your FF result indicates the Plug-In has correctly registered with at least one browser. What happens when you double click a .JNLP on the local file-system? Does it 'open in IE'? Andrew T. > What happens when you double click a .JNLP on the > local file-system? Does it 'open in IE'? I double clicked the .jnlp file on my Desktop and IE tried to open it for a split of a second and then nothing happens, no browser is opened and the program is not launched. Jay >> What happens when you double click a .JNLP on the >> local file-system? Does it 'open in IE'? [quoted text clipped - 4 lines] > > Jay If it was another browser I'd say it looks like the browser does not have any association for a jnlp file type assigned. I do not know how to set that in IE. Thanks in Advance... IchBin, Pocono Lake, Pa, USA http://weconsultants.phpnet.us __________________________________________________________________________ 'If there is one, Knowledge is the "Fountain of Youth"' -William E. Taylor, Regular Guy (1952-) What is confusing me even more is that after viewing some sample apps on line at http://java.sun.com/products/javawebstart/demos.html that use jnlp files to launch the applications I am able to open them with both Firefox and IE and everything runs fine. I am starting to think that this is a server problem related with mime types, but if so why would it work on one browser and not another? Jay > > What happens when you double click a .JNLP on the > > local file-system? Does it 'open in IE'? > > I double clicked the .jnlp file on my Desktop and IE tried to open it > for a split of a second and then nothing happens, no browser is opened > and the program is not launched. OK. Now open a folder, go to .. Tools | Folder Options | File Types Sort the list by extension (I think it's the default) and see if JNLP is registered, and if it is associated with IE (it should be associated with 'Java (TM) Web Start Launcher'). Andrew T. > OK. Now open a folder, go to .. > Tools | Folder Options | File Types > > Sort the list by extension (I think it's the default) and see > if JNLP is registered, and if it is associated with IE > (it should be associated with 'Java (TM) Web Start Launcher'). JNLP is registered but all it says is: Opens With: Java(TM) Web Start Launcher It doesn't say anything about its association with IE. Jay > Hi all, > [quoted text clipped - 34 lines] > > Jay Looks like IE does not have any association for a jnlp file type assigned. Thanks in Advance... IchBin, Pocono Lake, Pa, USA http://weconsultants.phpnet.us __________________________________________________________________________ 'If there is one, Knowledge is the "Fountain of Youth"' -William E. Taylor, Regular Guy (1952-) > I am new to using Java Web Start and writting .jnlp files and am > running into some problem. I have written this .jnlp file to deploy my [quoted text clipped - 3 lines] > <?xml version="1.0" encoding="UTF-8"?> > <jnlp spec="1.0+" codebase="http://myweb..." href="Clear.jnlp"> [...] > </jnlp> > ------------------------------------------ > > The problem is that when I run the file on Firefox it does what it is > supposed to, deploys the program, however, when I try it on IE it just > displays the XML text above and it does not launch. Any ideas??? Please make sure, that your web *server* is configured to map .jnlp files to the required MIME-type. See FAQ: "Why does my browser show JNLP file as plain text?" http://java.sun.com/j2se/1.5.0/docs/guide/javaws/developersguide/faq.html#215  SignatureThomas > Please make sure, that your web *server* is configured to map .jnlp files to > the required MIME-type. > See FAQ: "Why does my browser show JNLP file as plain text?" > http://java.sun.com/j2se/1.5.0/docs/guide/javaws/developersguide/faq.html#215 Yes, I'm starting to think it is a server problem, but is there any way of programatically setting the mime type? - that would be a lot easier than having to change server settings. Jay > > Please make sure, that your web *server* is configured to map .jnlp files to > > the required MIME-type. > > See FAQ: "Why does my browser show JNLP file as plain text?" > > http://java.sun.com/j2se/1.5.0/docs/guide/javaws/developersguide/faq.html#215 > > Yes, I'm starting to think it is a server problem, Put your suspicions to rest by checking it. <http://mindprod.com/jgloss/mime.html> What's the URL of your JNLP? >...but is there any way > of programatically setting the mime type? Yep. That's what the server's for. It sends the header that specifies the MIME type. Andrew T. > >...but is there any way > > of programatically setting the mime type? > > Yep. That's what the server's for. It sends the header > that specifies the MIME type. But that involves changing server settings, if the server doesn't send the header that specifies the MIME type already. I was looking for a way to set the mime type in my code. Jay. >> >...but is there any way >> > of programatically setting the mime type? [quoted text clipped - 6 lines] > that specifies the MIME type already. I was looking for a way to set > the mime type in my code. In what code? The source code for the server? Yes, you could modify the server itself to do that, but wouldn't it be easier to modify the settings via a configuration file? If instead, you mean the Java code of the program the user is downloading, by the time that code executes, the download already occured, which means the MIME type was already sent, and it's too late. - Oliver Finally everything works fine now. It was a server problem, the settings had to be updated. application/x-java-jnlp-file -> .jnlp Thanks to everyone for your advice. Jay Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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