Exec exe file in jar

Hi,
Is there a way to execute an exe file that is inside the jar with the main class?
Right now, I am copying the file to a folder, and executing it.
Thanks

Would be a great security risk...
Not possible.

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Can i load and run .exe file from jar file??

I generated a .jar file witch contain an executable (.exe file) under a directory called 'exec'. I can't execute this exe file using
URL urlExecutable = DlgueLancement.class.getResource("/exec/myPrograme.exe");

import java.io.*;
import java.util.jar.*;
import java.util.zip.*;
public class Extracter
    public static File extract(File archive, String filename, File target) throws IOException, ZipException
        if( archive == null )
            throw new IllegalArgumentException("Null archive file");
        if( !archive.exists() )
            throw new IllegalArgumentException("Specified archive does not exists");
        if( !archive.isFile() )
            throw new IllegalArgumentException("Specified archive file is not a file");
        if( filename == null )
            throw new IllegalArgumentException("Null filename");
        if( filename.length() == 0 )
            throw new IllegalArgumentException("Empty filename");
        if( target == null )
            throw new IllegalArgumentException("Null target");
        if( target.exists() && file.length() > 0 )
            throw new IllegalArgumentException("Target file already exists and cannot be overwritten");
        JarFile jar_archive = new JarFile(archive);
        ZipEntry entry      = jar_archive.getEntry(filename);
        if( entry == null )
            return null;
        InputStream istream = null;
        FileOutputStream ostream = null;
        try
            istream = jar_archive.getInputStream(entry);
            if( istream.available() == 0 )
                return null;
            byte[] buffer = new byte[istream.available()];
            istream.read(buffer);
            ostream = new FileOutputStream(target);
            ostream.write(buffer);
            return target;
        finally
            if( istream != null )
                try{istream.close();}catch(Exception e){}
            if( ostream != null )
                try{ostream.close();}catch(Exception e){}
}

How to include and call exe file in jar?

Hi, I am writing a Java application that calls an external exe file to accomplish some tasks. In order to make the program more user friendly, I would like to package the Java application and the exe file into one JAR file and distribute that JAR file to users. I tried to package all these files by running the following command:
jar cmf manifest.txt java_class_file exe_fileThe manifest.txt contains only the following entry:
Main-Class: java_class_fileHowever, when I execute the program with java -jar bundle.jar, the JVM complains that it cannot find the exe file. (Everything works fine when I run the original class file with java)
Would anyone kindly teach me how to do this?
Thanks in advance!

You cannot call an exe file in a jar.
You can have the jar unpack the exe and then run it however.

Executing an file.exe from a jar file?

Does anyone know how to execute an *.exe file from jar file?
I have two files that I want to execute in one java.class, Monview.exe and Moninit.exe. Both are stored in the same jar file as the class called link.class.
This is my code to run one of the files from the hard drive
String []cmd={"c:\\monview.exe"};
try
Process pr = Runtime.getRuntime().exec(cmd);
StringBuffer buf = new StringBuffer();
InputStream istr = pr.getInputStream();
BufferedReader br = new BufferedReader(new InputStreamReader(istr));
String str;
while ((str = br.readLine()) != null) {
                         buf.append(str);
try {
pr.waitFor();
} catch (InterruptedException e) { }
     if (pr.exitValue() != 0) {
     br.close();
catch (IOException e){}
It works when i place both .exe on the local host harddrive but when I place it in the jar file nothing happens. Could anyone help me please on why does this happen and how I can fix it? Or on how to get the link.class code to extract it from the jar file and place it on the system directory and delete it from the system directory, without it knowing where the jar file comes from?

Hello,
If I am not mistaken, by including the JAR file in the CLASSPATH (specifying the absolute path), or after the -classpath option after the java command (java -classpath jar_archive main_class), the system will find both files in the JAR archive.
Hope this helps!

Exec an .exe file

I have written a program that executes an .exe file using the
Runtime.exec() command and all works fine standalone with the .exe
file located in the root of my classpath.
My problem comes when I want to deploy it using WebStart, I dont know where to place the .exe where it can be found.
Ideally I dont want to install it on the client and was wondering
if it is possible to find its location programatically say in the
cache.
TIA

This is quite simple actually once you know the trick. Should probably be put into a faq....
Create a native method e.g. getNativePath and implement it to return the path of where it is located on disk. Bundle your executable and the native dll into a jar that is added in the nativelib section of the jnlp file
On windows the code may look something like the following.
* Class:     Native
* Method:    getNativePath
* Signature: ()Ljava/lang/String;
JNIEXPORT jstring JNICALL Java_Native_getNativePath(JNIEnv* env, jobject obj)
   char buf[_MAX_PATH];
#ifdef _DEBUG
   HMODULE hmodule=GetModuleHandle("theNameOfTheDebugDll");
#else
   HMODULE hmodule=GetModuleHandle("theNameOfTheReleaseDll");
#endif
   GetModuleFileName(hmodule, buf, _MAX_PATH);
   return (*env)->NewStringUTF(env, buf);
}Now call the executable with Runtime.exec() by prepending the path returned by the native call to getNativePath.
\Magnus

Include and call an .exe file inside my jar file

Hi.
I want to include an exe file and call it inside my jar file. this is the code.
InputStream is = getClass().getResourceAsStream("/native/my.exe");
          int[] line = new int[is.available()];
          File myFile = File.createTempFile("my","exe");
          myFile.deleteOnExit();
          myFile.setExecutable(true);
          FileOutputStream out = new FileOutputStream(myFile.getAbsolutePath());
          int i = 0;
          int c;
          while((c=is.read()) != -1){
               line=c;
               i++;
          is.close();
          for(int j= 0;j<line.length;j++)
               out.write(line[j]);
          out.close();
So i store it in my temp folder. Than i run
String myFileLocation = myFile.getAbsolutePath();
p = rt.exec(myFileLocation);
Everything goes fine, but the behaviour of the .exe file is not the same. I mean when i run the commands
PrintWriter writer = new PrintWriter(p.getoutputStream());
writer.println("command");
the behaviour is not the same. What goes wrong.

But to load the xml file I need to create a File objectIf this is true then you will not be able to load the XML file, since a jar entry is not a File object and cannot be represented as one.
However if you get rid of whatever it is that loads your XML file and replace it by more standard JAXP processing, you should be able to parse an InputStream that reads from the jar entry. You know how to get that so it should not be a problem.

How to pack .class or .jar with jvm into an exe file?

In fact, .class or .jar files are middle layer files who need JVM to explain and run them. Sometimes it's unconvenient. Why not provide some tools to pack .class or .jar with jvm into exe file?

because java should be able to run on any OS. That is why SUN doesn't provide such tool. There are other company's who does provide such tool. Like JBuilder enterprise

Conversion of a .jar OR a .class file into a .exe file

Can anyone tell me as how to convert a .jar OR a .class file into a .exe file
I need to know as soon as possible.

Okay I will tell you the steps:
Look in the top right hand corner of the page.
There should be a box with a red title line. Inside the
title should be the letters 'S E A R C and H'.
In the white part of th box should be a smaller line, in which you can type.
type in "conversion .jar .class .exe" or some similar string.
Then click on the button next to the text box.
Read the page of results you get.
Click on the first link and read what is said on the connecting page.
If that doesn't help, use your browser's back button and click on the next link, and repeat util your question is answered.

How to control (the input and output) EXE file after I call it using exec?

Hi,
I knew that I can use runtime.exec() to call one EXE file, and this works. But this EXE has two characteristics:
1. After this exe starts, it asks user to input number such as 1 or 2 onto computer screen, then press return. Then the exe will start the calculation.
2. after it starts calculation, it prints 3 columns of numbers onto the screen.
My two questions are:
1. How to use java to input the number such as 1 or 2 automatically? this EXE can not work like this in DOS command line:
C:> file.exe parameter
The parameter is the number such as 1 or 2 that I wanna input.
2. how to redirect the 3 columns of numbers from computer screen to txt file?
My colleague can solve these two questions using Mathematica. So I know that definitely there is at least one solution for it. I just can not do it using Java. This wierd exe file bothered me a lot and I really wish that I can get help from someone in java community.
Thank you!
Tony

When you call Runtime.exec, you get a Process object. (I presume something similar happens when you use ProcessBuilder.) Process has methods with names getOutput, getInput, and getError. These correspond to the standard input, standard output, and standard error streams of the spawned process.
You can read and write to the process on the streams corresponding to input and output that the process writes to the console.
[add]
In fact, you should be grabbing and reading the output/error streams anyway, because of the points raised by the Traps article. Google "Java Runtime exec traps" and you'll probably get a link to this JavaWorld article, which describes common Runtime.exec problems and how to solve them.
Edited by: paulcw on Jun 15, 2010 4:09 PM

Running exe contained in jar file

Hello,
I have written a java interface where an external executable is being called from one of the classes. I'm using Jgrasp as development environment.
Everything works fine if I run the java program from within Jgrasp: the interface opens up fine and it can run the external program when the button which is supposed to start it is clicked on.
I have then generated a JAR file containing all the classes etc and also the external executable.
When I execute the Jar file, the interface opens up ok and everything works fine within it, but it cannot run the external executable any more.
Is it possible to run an exe file contained in the jar file itself?
I would like to distribute a single jar file containing all the files needed by the application.
Thanks

An EXE can only be executed from Java if it resides somewhere in the file system.
This is obviously the case before you JAR the whole thing, but not after.
Your code will need to extract the EXE by using Class.getResourceAsStream() and
copy it to a temporary location in the file system before executing it.

Referring remote machines exe file path in exec method

Can i refer remote server machine's exe file path in RunTime class's exec method?

It's not so easy to cause a program to run on another machine. In fact virus writers consider that a challenge.
If you want to run a program on another machine, you need that machine's permission, in the form of a server that accepts requests to run programs. An FTP server can be configured to do that, and there are other servers that can do it too. Ask the administrator of the other machine about setting one up.

EXEC and EXE files

I have found some exec and exe files in with my photos in my finder. I beleive these are old windows filesthat wre transferred over when I switched to Mac and would like to delete them but don't want to cause any issues if these files are usable and needed on my MacBook Pro. Thanks for your help.

You are welcome.
Allan

Help adding new files to Jar file.

I am new to Java and am having problems haveing our Web App work after I have recreated the JAR file...this is what I did...
Changed to the following directory at a dos prompt:
D:\jdk1.3.1_01\bin
Ran the following to extract the files from the jar file.
jar xvf app2.jar
...this created 5 directories with various files.
copied new and updated graphic files to
D:\jdk1.3.1_01\bin\app2\images
Recreated the jar file using the following command (pv com javavp meta-inf borland are the 5 directories that were extracted from the original jar file above):
jar.exe cvf app2.jar pv com app2 meta-inf borland
I now have a new jar file that is a similar size, so it looks good, but when I put it in our web site, it does not recognize certain frames (that get information from the database) that it did before (the frames are blank)
Any thoughts on what I am doing wrong?
Also, are there any Windows programs that i can use to make this easier instead of using the dos commands?
Thanks...

To change the contents while inside a java program, you might be able to use Runtime.exec(String[]). Make the array with "jar.exe" as the first index, flags in the second, and remaining arguments in the remaining indecies.

Through Java code I want to execute a exe file which is in aJar file

I am having some classes and an exe file in a directory. I have made them in to a Jar file. In a class file which is in that jar file i want to execute a Exe file which is also resides in that jar file. Is it possible to exexute that EXE file?
For Example....
1. Im having a directory named CLIENT.
2. In that directory I have 10 clss files and an EXE file.
3. These class files and EXE files are ziped in to a Jar file.
4. I have to give the Jar file to my client.
5. He can put that Jar file where ever he installed my product may be C driver or D drive like that
Now the problem is...
I want to execute the Exe File from one of the class where both the exe file and class file resides in the Jar file
This is my requirment
Can anyone Help to me to solve this problem?
Thanks in Advancd
Ibram Shah.A.M
([email protected])

The answer is to extract the EXE into a temp directory, execute it, and delete it when you're done. For example:
//This is the path *inside* the JAR file!
InputStream in = getClass().getResourceAsStream("/resources/myprog.exe");
OutputStream out = new FileOutputStream("myprog.exe");
File file = new File("myprog.exe");
int data;
while((data = in.read()) >= 0) out.write(data);
in.close();
out.close();
//Execute the EXE here using java.lang.Runtime.exec()
if(file.exists()) file.delete();
...

Running .EXE file from Java

Do you know, how run an .exe file, for example Internet Explorer or other program, from Java application?
It's very important for me.

Too run external program and pass string arguments see class java doc
of java.lang.Runtime method exec . You see online or download or
rename src.jar to s.zip EXTRACT and see
exec
public Process exec(String[] cmdarray,
String[] envp)
throws IOException
Executes the specified command and arguments in a separate process with the
specified environment.
This is a convenience method. An invocation of the form exec(cmdarray, envp)
behaves in exactly the same way as the invocation exec(cmdarray, envp,
null).
Parameters:
cmdarray - array containing the command to call and its arguments.
envp - array of strings, each element of which has environment variable
settings in the format name=value, or null if the subprocess should inherit
the environment of the current process.
Returns:
A new Process object for managing the subprocess
Throws:
SecurityException - If a security manager exists and its checkExec method
doesn't allow creation of the subprocess
IOException - If an I/O error occurs
NullPointerException - If cmdarray is null, or one of the elements of
cmdarray is null, or one of the elements of envp is null
IndexOutOfBoundsException - If cmdarray is an empty array (has length 0)
See Also:
ProcessBuilder
getRuntime
public static Runtime getRuntime()
Returns the runtime object associated with the current Java application.
Most of the methods of class Runtime are instance methods and must be
invoked with respect to the current runtime object.
Returns:
the Runtime object associated with the current Java application.

Exec exe file in jar

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