制作独立的Java EXE文件

Question

I'm currently a student at a high school, and I found a game programming competition for a club called FBLA. I had a few questions about the competition, and so I emailed them.

I made a post earlier on Computer Science Stack Exchange, where you can view here .

Now after receiving feedback from the question, someone commented that I should post my next question on this website.

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My question is that how would I be able to package a Java JAR file with the native libraries, and then create an EXE out of it, so it will be a stand alone?

In my theory, I would have to create the jar, and put the required native files when a person installs java on their machine, into that JAR file, and then I can use a program such as FatJar or JSmooth.

If I'm wrong, or how I could understand a bit more on how jars are ran, it would help considerably.

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Update Nov. 8, 2014
I finally got back around to messing with it, and I downloaded Launch4j. I set up and did everything with it, and I make an executable, which contains all of java's core native files. I uninstalled all of my programs dealing with java, and when I went to run it, it still required java.

Once again to state what I need to happen:
What needs to happen is the executable will be able to run even if there's not any version of Java installed on the judge's computer.

Answer 1

I would reccomend you use launch4j. http://launch4j.sourceforge.net

I've used it for some larger projects and it worked very well.

It can encapsulate your jar, dependencies and even a JRE into a windows in executable. It has a GUI or you can run from the command line.

Answer 2

Checkout Packr，由libGDX团队创建： https ： //github.com/libgdx/packr

Answer 3

To make your jar executable, you specify the main class of your application, any extra jar files it may require and so on in the jar's manifest file:

Main-Class: MyAppMain
Class-Path: MyLib.jar

Then you use the jar utility from the Java SDK to package your classes and resource files, specifying the m option and the name of your manifest file:

jar cvfm MyApp.jar MyApp.mf *.class *.gif

This will result in the creation of MyApp.jar . Now, if you type

java -jar MyApp.jar

the Java launcher will read the manifest from MyApp.jar , place that file and MyLib.jar on classpath and invoke the main method from the class MyAppMain .

Now, if your Java app needs native libraries, you also need to specify the java.library.path property pointing to the directory(ies) holding those:

java -Djava.library.path=.\bin -jar MyApp.jar

For more info and alternative solutions, refer to my article .