java.util.jar
class JarOutputStream

java.lang.Object java.io.OutputStream java.io.FilterOutputStream java.util.zip.DeflaterOutputStream java.util.zip.ZipOutputStream java.util.jar.JarOutputStream

All Implemented Interfaces:

Closeable, Flushable, ZipConstants

Most common way to construct:

FileOutputStream fostream = …;

JarOutputStream jostream = new JarOutputStream(fostream);

Based on 21 examples

public class JarOutputStream
extends ZipOutputStream

The JarOutputStream class is used to write the contents of a JAR file to any output stream. It extends the class java.util.zip.ZipOutputStream with support for writing an optional Manifest entry. The Manifest can be used to specify meta-information about the JAR file and its entries.

JarOutputStream

public JarOutputStream(OutputStream out)
                throws IOException

Creates a new JarOutputStream with no manifest.

Parameters:

out - the actual output stream

Throws:

IOException - if an I/O error has occurred

JarOutputStream

public JarOutputStream(OutputStream out,
                       Manifest man)
                throws IOException

Creates a new JarOutputStream with the specified Manifest. The manifest is written as the first entry to the output stream.

Parameters:

out - the actual output stream

man - the optional Manifest

Throws:

IOException - if an I/O error has occurred

putNextEntry

public void putNextEntry(ZipEntry ze)
                  throws IOException

Begins writing a new JAR file entry and positions the stream to the start of the entry data. This method will also close any previous entry. The default compression method will be used if no compression method was specified for the entry. The current time will be used if the entry has no set modification time.

Overrides:

putNextEntry in class ZipOutputStream

Parameters:

ze - the ZIP/JAR entry to be written

Throws:

IOException - if an I/O error has occurred