java.lang.Object java.util.zip.ZipFile java.util.jar.JarFile
The JarFile class is used to read the contents of a
jar
JAR
file from any file that can be opened with java.io.RandomAccessFile. It extends the class java.util.zip.ZipFile with support for reading an optional Manifest entry. The Manifest can be used to specify meta-information about the
jar
JAR
file and its entries.
Unless otherwise noted, passing a null argument to a constructor or method in this class will cause a NullPointerException to be thrown.
Field Summary | |
---|---|
static int |
CENATT
|
static int |
CENATX
|
static int |
CENCOM
|
static int |
CENCRC
|
static int |
CENDSK
|
static int |
CENEXT
|
static int |
CENFLG
|
static int |
CENHDR
|
static int |
CENHOW
|
static int |
CENLEN
|
static int |
CENNAM
|
static int |
CENOFF
|
static long |
CENSIG
|
static int |
CENSIZ
|
static int |
CENTIM
|
static int |
CENVEM
|
static int |
CENVER
|
static int |
ENDCOM
|
static int |
ENDHDR
|
static int |
ENDOFF
|
static long |
ENDSIG
|
static int |
ENDSIZ
|
static int |
ENDSUB
|
static int |
ENDTOT
|
static int |
EXTCRC
|
static int |
EXTHDR
|
static int |
EXTLEN
|
static long |
EXTSIG
|
static int |
EXTSIZ
|
static int |
LOCCRC
|
static int |
LOCEXT
|
static int |
LOCFLG
|
static int |
LOCHDR
|
static int |
LOCHOW
|
static int |
LOCLEN
|
static int |
LOCNAM
|
static long |
LOCSIG
|
static int |
LOCSIZ
|
static int |
LOCTIM
|
static int |
LOCVER
|
static String |
MANIFEST_NAME
The JAR manifest file name. |
Fields inherited from class java.util.zip. ZipFile |
---|
OPEN_DELETE , OPEN_READ |
Constructor Summary | |
---|---|
JarFile
(
File
file) Creates a new JarFile to read from the specified File object. |
|
JarFile
(
File
file, boolean verify) Creates a new JarFile to read from the specified File object. |
|
JarFile
(
File
file, boolean verify, int mode) Creates a new JarFile to read from the specified File object in the specified mode. |
|
JarFile
(
String
name) Creates a new JarFile to read from the specified file name. |
|
JarFile
(
String
name, boolean verify) Creates a new JarFile to read from the specified file name. |
Method Summary | |
---|---|
Enumeration |
entries
() Returns an enumeration of the zip |
ZipEntry |
getEntry
(
String
name) Returns the ZipEntry for the given entry name or null if not found. |
InputStream |
getInputStream
(
ZipEntry
Returns an input stream for reading the contents of the specified zip |
JarEntry |
getJarEntry
(
String
name) Returns the JarEntry for the given entry name or null if not found. |
Manifest |
getManifest
() Returns the jar |
Methods inherited from class java.util.zip. ZipFile |
---|
close , finalize , getName , size |
Methods inherited from class java.lang. Object |
---|
clone , equals , getClass , hashCode , notify , notifyAll , toString , wait , wait , wait |
Field Detail |
---|
public static final String MANIFEST_NAME
public static final long LOCSIG
public static final long EXTSIG
public static final long CENSIG
public static final long ENDSIG
public static final int LOCHDR
public static final int EXTHDR
public static final int CENHDR
public static final int ENDHDR
public static final int LOCVER
public static final int LOCFLG
public static final int LOCHOW
public static final int LOCTIM
public static final int LOCCRC
public static final int LOCSIZ
public static final int LOCLEN
public static final int LOCNAM
public static final int LOCEXT
public static final int EXTCRC
public static final int EXTSIZ
public static final int EXTLEN
public static final int CENVEM
public static final int CENVER
public static final int CENFLG
public static final int CENHOW
public static final int CENTIM
public static final int CENCRC
public static final int CENSIZ
public static final int CENLEN
public static final int CENNAM
public static final int CENEXT
public static final int CENCOM
public static final int CENDSK
public static final int CENATT
public static final int CENATX
public static final int CENOFF
public static final int ENDSUB
public static final int ENDTOT
public static final int ENDSIZ
public static final int ENDOFF
public static final int ENDCOM
Constructor Detail |
---|
public JarFile(String name) throws IOException
public JarFile(String name, boolean verify) throws IOException
public JarFile(File file) throws IOException
public JarFile(File file, boolean verify) throws IOException
public JarFile(File file, boolean verify, int mode) throws IOException
Method Detail |
---|
public Manifest getManifest() throws IOException
public JarEntry getJarEntry(String name)
public ZipEntry getEntry(String name)
public Enumeration entries()
public InputStream getInputStream(ZipEntry ze) throws IOException