Include file exe into Project Netbeans Java

Question

i want to include a file into my project in Netbeans, i'm developping an application for PC with the language Java. I searched almost on the Net, but i have found nothing. When i compile the application if i go into path where there is /dist the file exe aren't here. Thank you so much.

String exec [] = {getClass().getClassLoader().getResource("inc_volume.exe").getPath() };
                System.out.println(exec[0]);
                Runtime.getRuntime().exec(exec);

Update on 20/08/2014 15.29

I have found this source to extract from jar, but i don't know how to use:

    java.util.jar.JarFile jar = new java.util.jar.JarFile(jarFile);
java.util.Enumeration enumEntries = jar.entries();
while (enumEntries.hasMoreElements()) {
    java.util.jar.JarEntry file = (java.util.jar.JarEntry) enumEntries.nextElement();
    java.io.File f = new java.io.File(destDir + java.io.File.separator + file.getName());
    if (file.isDirectory()) { // if its a directory, create it
        f.mkdir();
        continue;
    }
    java.io.InputStream is = jar.getInputStream(file); // get the input stream
    java.io.FileOutputStream fos = new java.io.FileOutputStream(f);
    while (is.available() > 0) {  // write contents of 'is' to 'fos'
        fos.write(is.read());
    }
    fos.close();
    is.close();
}

Here Image:

Answer 1

To include an exe file to your project, copy this exe file via filesystem to the src folder of your Netbeans project.

when you have built your project, then this exe file will be packaged into the project jar file.

At runtime to run this exe, you will need to extract this exe file from your jar file.

And as this exe file is extracted you can execute it.

To launch an external application from your java code I recommend to use Apache Commons Exec: http://commons.apache.org/proper/commons-exec/

---

UPDATE

Below there's sample class to demonstrate how to extract all exe files from the current running jar file. I used these SO posts to make this class: the first and the second ones.

import java.io.File;
import java.io.IOException;

/**
 *
 */
public class TestClass {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) throws IOException {

        extractExeFiles("C://Temp");

    }


    /**
     * Gets running jar file path.
     * @return running jar file path.
     */
    private static File getCurrentJarFilePath() {
        return new File(TestClass.class.getProtectionDomain().getCodeSource().getLocation().getPath());
    }

    /**
     * Extracts all exe files to the destination directory.
     * @param destDir destination directory.
     * @throws IOException if there's an i/o problem.
     */
    private static void extractExeFiles(String destDir) throws IOException {
        java.util.jar.JarFile jar = new java.util.jar.JarFile(getCurrentJarFilePath());
        java.util.Enumeration enumEntries = jar.entries();
        String entryName;
        while (enumEntries.hasMoreElements()) {
            java.util.jar.JarEntry file = (java.util.jar.JarEntry) enumEntries.nextElement();
            entryName = file.getName();
            if ( (entryName != null) && (entryName.endsWith(".exe"))) {
                java.io.File f = new java.io.File(destDir + java.io.File.separator + entryName);
                if (file.isDirectory()) { // if its a directory, create it
                    f.mkdir();
                    continue;
                }
                java.io.InputStream is = jar.getInputStream(file); // get the input stream
                java.io.FileOutputStream fos = new java.io.FileOutputStream(f);
                while (is.available() > 0) {  // write contents of 'is' to 'fos'
                    fos.write(is.read());
                }

                fos.close();
                is.close();                
            }
        }
    }
}