Mega Code Archive

 

Categories / Java / File Input Output

 

Create Jar file

import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.util.jar.JarEntry; import java.util.jar.JarOutputStream; import java.util.jar.Manifest; public class CreateJarFile {   public static int BUFFER_SIZE = 10240;   protected void createJarArchive(File archiveFile, File[] tobeJared) {     try {       byte buffer[] = new byte[BUFFER_SIZE];       // Open archive file       FileOutputStream stream = new FileOutputStream(archiveFile);       JarOutputStream out = new JarOutputStream(stream, new Manifest());       for (int i = 0; i < tobeJared.length; i++) {         if (tobeJared[i] == null || !tobeJared[i].exists()             || tobeJared[i].isDirectory())           continue; // Just in case...         System.out.println("Adding " + tobeJared[i].getName());         // Add archive entry         JarEntry jarAdd = new JarEntry(tobeJared[i].getName());         jarAdd.setTime(tobeJared[i].lastModified());         out.putNextEntry(jarAdd);         // Write file to archive         FileInputStream in = new FileInputStream(tobeJared[i]);         while (true) {           int nRead = in.read(buffer, 0, buffer.length);           if (nRead <= 0)             break;           out.write(buffer, 0, nRead);         }         in.close();       }       out.close();       stream.close();       System.out.println("Adding completed OK");     } catch (Exception ex) {       ex.printStackTrace();       System.out.println("Error: " + ex.getMessage());     }   } }