Example usage for java.util.jar JarFile JarFile

Introduction

In this page you can find the example usage for java.util.jar JarFile JarFile.

Prototype

public JarFile(File file) throws IOException

Source Link

Document

Creates a new JarFile to read from the specified File object.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    JarFile f = new JarFile("a.jar");
    Pack200.Packer packer = Pack200.newPacker();
    OutputStream out = new FileOutputStream("a.pack");
    packer.pack(f, out);//  w w  w  .  j a v  a  2s . c o m
    out.close();
}

From source file:Main.java

public static void main(String[] args) throws IOException {
    JarFile jf = new JarFile(args[0]);
    Enumeration e = jf.entries();
    while (e.hasMoreElements()) {
        JarEntry je = (JarEntry) e.nextElement();
        String name = je.getName();
        System.out.println(name);
    }/*from   w w w.ja  v  a 2 s . c om*/
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    JarFile jarfile = new JarFile("filename.jar");

    Manifest manifest = jarfile.getManifest();

    OutputStream fos = new FileOutputStream("manifest");
    jarfile.getManifest().write(fos);//  w  w  w. ja v a2s.  c  o m
    fos.close();
}

From source file:MainClass.java

public static void main(String[] args) throws IOException {

    JarFile jf = new JarFile(args[0]);
    Enumeration e = jf.entries();
    while (e.hasMoreElements()) {
        JarEntry je = (JarEntry) e.nextElement();
        String name = je.getName();
        System.out.println(name);
    }//w  ww  .jav  a 2 s . c  om
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    JarFile jarfile = new JarFile("filename.jar");

    Manifest manifest = jarfile.getManifest();

    Attributes attrs = (Attributes) manifest.getMainAttributes();

    for (Iterator it = attrs.keySet().iterator(); it.hasNext();) {
        Attributes.Name attrName = (Attributes.Name) it.next();

        String attrValue = attrs.getValue(attrName);
    }//from  ww w . j ava  2 s . c o  m
}

From source file:Main.java

public static void main(String args[]) throws IOException {

    JarFile jarFile = new JarFile("c:/abc/yourJarFileName.jar");
    Enumeration<JarEntry> e = jarFile.entries();
    while (e.hasMoreElements()) {
        process(e.nextElement());//from  w ww  .  j a  v  a2s.co m
    }
    jarFile.close();
}

From source file:MainClass.java

public static void main(String[] args) throws IOException {

    JarFile jf = new JarFile(args[0]);
    Enumeration e = jf.entries();
    while (e.hasMoreElements()) {
        JarEntry je = (JarEntry) e.nextElement();
        String name = je.getName();

        long crc = je.getCrc();
        System.out.println("Its CRC is " + crc);
        String comment = je.getComment();
        if (comment != null && !comment.equals("")) {
            System.out.println(comment);
        }/*from  w  w w. j  a v a  2s  .c  om*/
        if (je.isDirectory()) {
            System.out.println(name + " is a directory");
        }

    }
}

From source file:Main.java

public static void main(String args[]) throws IOException {

    JarFile jarFile = new JarFile(new File("c:/abc/yourJarFileName.jar"));
    Enumeration<JarEntry> e = jarFile.entries();
    while (e.hasMoreElements()) {
        process(e.nextElement());//from w  ww .  j  ava  2s.c o  m
    }
    jarFile.close();
}

From source file:Main.java

public static void main(String[] args) throws Exception {

    OutputStream out = null;//from www.j  a v a2s . co  m

    JarFile f = new JarFile(args[0]);
    Pack200.Packer packer = Pack200.newPacker();
    out = new FileOutputStream(args[0] + ".pack");
    packer.pack(f, out);
    out.close();
}

From source file:Main.java

public static void main(String[] args) throws IOException {

    JarFile jf = new JarFile(args[0]);
    Enumeration e = jf.entries();
    while (e.hasMoreElements()) {
        JarEntry je = (JarEntry) e.nextElement();
        String name = je.getName();
        Date lastModified = new Date(je.getTime());
        long uncompressedSize = je.getSize();
        long compressedSize = je.getCompressedSize();

        System.out.println(lastModified);
        System.out.println(uncompressedSize);
        System.out.println(compressedSize);
    }//from  w  ww .  j  ava2  s . c  o m
}