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Java Forum / General / February 2006using java without installing it
ok i have question. I have a product that needs java in order to run, now i know you cant distribute SDK/JDK but you can JRE and that is all i need. I have created an .msi installation file and want to give the user the option to install java with the program, but since you can only have one windows installer open at a time thsi wont work unless there is some way to install java without using the windows installer. if i have to do it by hand, how would i do it? Hochi > ok i have question. I have a product that needs java in order to run, > now i know you cant distribute SDK/JDK but you can JRE and that is all [quoted text clipped - 3 lines] > there is some way to install java without using the windows installer. > if i have to do it by hand, how would i do it? What some programs do (I believe Eclipse does this) is checks if Java is installed at runtime, and if not, prompts the user to install Java. This is only possible if you have a launcher which is not written in Java. For example, write a C++ launcher whose only purpose is to check if Java is installed and, if so, to launch the "real" program. - Oliver >> ok i have question. I have a product that needs java in order to run, >> now i know you cant distribute SDK/JDK but you can JRE and that is all [quoted text clipped - 11 lines] > > - Oliver Oliver, Java Web Start can do the install as far as I know.  SignatureThanks in Advance... IchBin, Pocono Lake, Pa, USA http://weconsultants.servebeer.com/JHackerAppManager __________________________________________________________________________ 'If there is one, Knowledge is the "Fountain of Youth"' -William E. Taylor, Regular Guy (1952-) >>> ok i have question. I have a product that needs java in order to run, >>> now i know you cant distribute SDK/JDK but you can JRE and that is all [quoted text clipped - 11 lines] > > Oliver, Java Web Start can do the install as far as I know. If the user has Java Web Start installed, then they probably already have Java installed anyway, right? - Oliver >>>> ok i have question. I have a product that needs java in order to run, >>>> now i know you cant distribute SDK/JDK but you can JRE and that is all [quoted text clipped - 14 lines] > > - Oliver Your are right. I jump off the edge on that one! SignatureThanks in Advance... IchBin, Pocono Lake, Pa, USA http://weconsultants.servebeer.com/JHackerAppManager __________________________________________________________________________ 'If there is one, Knowledge is the "Fountain of Youth"' -William E. Taylor, Regular Guy (1952-) > ok i have question. I have a product that needs java in order to run, > now i know you cant distribute SDK/JDK but you can JRE and that is all [quoted text clipped - 3 lines] > there is some way to install java without using the windows installer. > if i have to do it by hand, how would i do it? You do not have to use the Java install kit to create a copy of Java. You can just package up all the required files in a subdirectory of your application, and call the java interpreter there. Remember that you're legally required to include all but a few optional files, though, and that you must ask the user to agree to Sun's license agreement as part of the installation process. Signaturewww.designacourse.com The Easiest Way To Train Anyone... Anywhere. Chris Smith - Lead Software Developer/Technical Trainer MindIQ Corporation > ok i have question. I have a product that needs java in order to run, > now i know you cant distribute SDK/JDK but you can JRE and that is all [quoted text clipped - 5 lines] > > Hochi Why not use Java Web Start. This way your install can install\update your distribution. Also check the client for any Java on the machine and install if need? And If need check for the version installed and require th version you need. JavaTM Web Start http://mindprod.com/jgloss/javawebstart.html http://www.javaworld.com/javaworld/jw-07-2001/jw-0706-webstart.html http://java.sun.com/products/javawebstart/ http://java.sun.com/j2se/1.5.0/docs/guide/javaws/index.html http://www-128.ibm.com/developerworks/java/library/j-webstart/ http://www.dallaway.com/acad/webstart/ http://lopica.sourceforge.net/faq.html SignatureThanks in Advance... IchBin, Pocono Lake, Pa, USA http://weconsultants.servebeer.com/JHackerAppManager __________________________________________________________________________ 'If there is one, Knowledge is the "Fountain of Youth"' -William E. Taylor, Regular Guy (1952-) Thanks for the fast replies. I will look into webstart however i have to use an microsoft install package, msi, because thats a requirement for the integration part of their product. Is there a way or place to find out what i need to install/copy in order to make it work just like the java installer distributed by Sun? Thanks There is a crystal clear note on how to distribute the free JRE and what files you need in the "Readme.txt" file in the folder: <Your JDK folder>\jre Please read it as it answers all your questions. Hope it helps! ok i looked at that, and yes its crystal clear. However maybe im just dumb but if i do it this way i dont get the java environment properly registered. For example how do i tell IE that it has to register the java installation (like they do in theirs) And do i have to set environment variables? and register it in the registry? cause when i look there there are entries, but are they needed? I assume so right? Yes, but the idea of this kind of deployment is not to setup a complete JRE on the client machine. It is for a private application runtime. This sort of setup is useful if you want your own private jre, in other words a JRE exclusive to your application only. Many commercial Java applications install their own private JREs which are installed inside their application's installation folder. They then use a custom launcher, such as a .BAT file to launch their application JAR files via the installed private JRE. However, if you want to setup a full fledged JRE on your client's machine, this technique is no advantage, instead u shud be reading "The Java Deployment Guide" which covers all aspects of JRE setup using the JRE installer provided by Sun. Please see for more information: http://java.sun.com/j2se/1.5.0/docs/guide/deployment/deployment-guide/contents.html Hope it helps! >Why not use Java Web Start. This way your install can install\update >your distribution. Also check the client for any Java on the machine and >install if need? And If need check for the version installed and require >th version you need. once you get any java installed, JWS will look after installing others. you can get the first one installed with either a button or an Applet with those hideous EMBED tags. The button is easy. Just a link. See http://mindprod.com/jgloss/jumptojava.html SignatureCanadian Mind Products, Roedy Green. http://mindprod.com Java custom programming, consulting and coaching. 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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