Execute command prompt's command from java to create jar file

Question

I tried to create jar file using command line that I inserted into java code, but it didn't work. The java code was like this:

try {
   Runtime a = Runtime.getRuntime();
   a.exec("cmd cd E:/My data/Final Project/Uji Coba bikin Jar & E: & jar cfm D:/EditingDiniApp.jar META-INF/MANIFEST.MF EditingDini META-INF net org");
} catch (IOException ex) {
   Logger.getLogger(JarFactory.class.getName()).log(Level.SEVERE, null, ex);
}

I copied the command into cmd.exe and it worked, but if it embed into java, it won't work.

Was there anything that I miss to do?

Thanks..

Is this to package up a project or as a function the project is supposed to do while running? — Thomas
– Thomas, Commented Jun 15, 2012 at 17:15
there's an article talking about this. basically, you need consume the OutputStream — LiuYan 刘研
– LiuYan 刘研, Commented Jun 15, 2012 at 17:22

dharam · Accepted Answer · 2012-06-15 17:24:27Z

1

Write the code to create a jar in a file through java code. Name it xxx.bat. Thread.sleep(5000);

And then use the exec command to execute the bat file. This works for me.

EDIT:

String s = "cmd cd E:/My data/Final Project/Uji Coba bikin Jar & E: & jar cfm     
D:/EditingDiniApp.jar META-INF/MANIFEST.MF EditingDini META-INF net org";
FileOutputStream fos = new FileOutputStream("abc.bat");
fos.write(s.getBytes());
fos.close();
Thread.sleep(2000);
Runtime.getRuntime().exec("abc.bat");
Thread.sleep(2000);

By the way I thought you are doing this for fun. But if you are new to java, I would suggest using Ant. Ant is used for packaging applications , deploying etc etc in java http://ant.apache.org

edited Jun 15, 2012 at 17:24

answered Jun 15, 2012 at 17:13

dharam

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1 Comment

adhitya kristanto Over a year ago

I'm new in java.. would you help me with an example? Thanks a lot

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