I have a Swing desktop application and have created a jar file which depends on library (which is kept in ./lib/) and a .txt file in the same folder. Now to execute the jar I have written a .bat file which checks if Java is installed or not. If installed then I run the jar file with command:
javaw -jar TagEdit.jar
Now there are two problems I am facing with this:
I would rather prefer a single executable, if possible.
As using bat file, the console is visible in back (looks kind of weird). Is it possible to turn it off?
Java is everywhere, and there are lots of applications that are built in Java and packaged in a setup, or given as exe. I Googled a lot but could not find a way to create a setup for the software or an exe. How are those software packaged?
Have tried jlaunch, but could not get that to work correctly.
Himz, Eclipse can automatically build a so-called "fat-jar" for you. It is a jar that contains all the dependencies you need.
If you are a happy Maven user, then you have two brilliant alternatives - the shade plugin, and the assembly plugin. They both can produce a "fat-jar" for you. :)
There are various answers to this.
javaws.exe will execute the jar without the console appearing behind
But I feel this isn't really the best way.
I think should investigate using Java Web Start, So you create a JNLP file and have it jar downloaded from the web, I think, you can also have a desktop icon.
If you don't want that
I think you can get/buy binary wrappers for the jar.
You could convert it to an executable. Try Googling java to exe.
Once that is done, you could package it up as an installer using NSIS.
Related
I have a couple of python files with some dependencies on third-party libraries, like pyaudio. So is there a way to compile everything including python intepreter itself into one .jar\dll file to use them in java\android or xamarin\ .net core, without actual installing python + doing pip install every time?
Also as an option - compile into c\c++?
You can use PyInstaller to create an executable.
Use this command:
pyinstaller --onefile <your_script>.py
https://medium.com/dreamcatcher-its-blog/making-an-stand-alone-executable-from-a-python-script-using-pyinstaller-d1df9170e263
I do not know about compiling into C, but for compiling executables in general you can use pyinstaller, cx_freeze, or a few other less common modules to create an executable folder which contains all the .dll files to run the program. I only have experience with cx_freeze so I'll discuss that here. If your goal is to have the end-user have only 1 "file" show up when they download it you need to use an installer program. To semi-quote cx_freeze documentation at: https://cx-freeze.readthedocs.io/en/latest/faq.html
cx_Freeze does not support building a single file exe, where all of the libraries for your application are embedded in one executable file. [There are modules that do this, but it's my understanding they use "hacks" that can get them flagged by antivirus software.]
You can use IExpress to compress the build directory from cx_Freeze into a self-extracting archive: an exe which unpacks your application into a temporary directory and runs it. IExpress is a utility that’s included with Windows, intended for making installers, but it works equally well if you tell it to run the cx_Freeze-built exe after extraction.
Alternatively, you can create a self extracting archive using 7zip. This is a bit more complex than using IExpress, but might provide more flexibility, and allows you to build your application using only open source tools.
Alternatively you can compile with python setup.py bdist_msi to create a single .msi file which will let the user choose where they want to install the program. At the end of the day the user will still have a directory with all the .dll files and whatnot, but they get to choose where they tuck that stuff away on their hard drive! I think this is the method most applications I've installed use. This is assuming you develop on Windows as well, if not you should include your OS on your post.
I have this, perhaps, easy problem, but I don't know how to handle this.
I have my Java program and it works pretty well when I call it via terminal (Java command).
The program uses 4 text files from the hard disk which can't be added as resources to the project.
How to do this right so I could build jar file only with main class and files from hard disk (first one is a config file and it has paths to other files so the program knows where they are)?
I'm using IntelliJ IDEA 14.1.4 on Arch Linux.
I did it based on this blog, but it's not working without txt files in src folder.
Also "jar cvf" command builds jar file, but it's not working outside my computer (for example on windows or OSX).
Can anyone help me?
I prefer step by step instruction so I would understand what is going on in here.
I recommend to build your application with Maven and create a Maven Assembly which contains your JAR file as well as the config.txt file.
Is there a way to bundle a spring-boot application into one executable jar including a JRE?
I think I saw someone doing that (Josh Long?) which resulted in a jar you could start via java -jar foo.jar and even with ./foo.jar
I googled for this the last hour but couldn't find any documentation on this, anyone there to help me out?
EDIT:
I just found what I saw at the conference. spring-boot 1.3 introduces something called executable jars, which wrap the jar with a shell script.
Enabling this makes it possible to run your jar like ./my.jar and tying it to an unix init system.
However, you still need java installed at your host.
Enabling this feature in gradle is as easy as adding this to your build.gradle
springBoot {
executable = true
}
You should think about using a Java installer / wrapper which will create a native binary which contains your code / jar and the JRE (some solutions can even download a JRE for you)
The positive side effect is that you (if needed) can create solutions for Linux, Windows and Mac.
If you want to stick to a simple Linux only solution you might want to try this: Bash script containing binary executable
Propably you are using Maven. This maven plugin allows you to create single jar file with all dependencies. Next you can use tool such as jwrapper which allows to build executable file with embeded JRE for many platforms.
I've developped a game during a Game Jam and I'd like to create an executable to distribute it to the other team members.
The game uses the slick2d and lwjgl library. I've tried to use JExePack, but the .exe file I get isn't runnable, I get an error while launching it.
Even the jar file gets me errors.
I'm only able to launch the game on the IDE. When I launch it with the command line : java -jar "game.jar", it obviously tells me that there's missing libraries, even if I indicate the path to the lib folder.
Is there an easy way to create an executable ?
Thanks in advance.
I think using a jar was a good idea.
You need to add every required jar in the classpath one-by-one for the jar to run properly.
Launch4J (http://launch4j.sourceforge.net/) is my favorite tool for that. You can just export an executable jar from your IDE and create an exe out of it. Creating an executable jar in Eclipse gives you the option to include all required libraries in it, which saves you from adding them manually when create the exe file. The minimal settings you need are:
Input (your executable jar)
Output (the .exe you want to create)
Minimum Java version (i.e. 1.6.0)
Thats it (as far as I remember)
If you want the exe you can use exe4j, it's a very useful tool, but i think using jars is better since you can run them on every platform. Anyway, when you export the jar, check on your ide's preferences if it automatically imports the libs. (for example, on eclipse you can pack the required libs into the exported jar)
You can use Luncher4j to create an exe file and convert the jar libraries to dll files.
everyone, how can I create executable file for the program written on Java in Eclipse Helios? I mean to create small icon to be able start program only by double-clicking on its icon, thanks in advance
edited
I mean executable for Windows
Export .jar in eclipse. (how to)
Use JSmooth (info) to make an .exe file. (how to)
Here is a tutorial that shows you how to make a jar file from eclipse.
If Java is installed on the computer, you can execute your application by doubleclicking the jar file:
http://ecs.victoria.ac.nz/Courses/COMP205_2009T1/TutorialEclipseExportToJar
You didn't mention what platform you are using. There are 2 ways I can think of.
The easiest way is for you to create a *.bat file (in Windows) that contains the java YourApp command line.
If you want to create a more fancy installer and executable, you can use NSIS script to do so. Since you are using eclipse, consider trying EclipseNSIS to generate the NSIS script, which is much faster and easier than writing it yourself from ground up.
The best answer for this situation is to launch the app. using Java Web Start. JWS can not only create desktop and start menu launch items, but provides automatic updates, cross-platform compatibility and much more.
Create a 1-line metafile to specify which class the JVM should look for to start with the main(String[]) method.
Run the command jar cmf [metafileName] [jarfileName] [classfiles] [img/txtDirectories]
You have an executable jar file - type in "java -jar jarfileName" or, directly "jarfileName" at your prompt. On windows, you can also double click on the jar file logo/name to get it started.
Good wishes, - M.S.
PS: Here is the link to a more detailed tutorial:
http://csdl.ics.hawaii.edu/~johnson/613f99/modules/04/jar-files.html