List of usage examples for java.util.zip ZipInputStream ZipInputStream
public ZipInputStream(InputStream in)
From source file:Main.java
public static void main(String[] args) throws Exception { String destinationname = "d:\\"; byte[] buf = new byte[1024]; ZipInputStream zipinputstream = null; ZipEntry zipentry;/*from w ww . ja va2 s . c om*/ zipinputstream = new ZipInputStream(new FileInputStream("fileName")); zipentry = zipinputstream.getNextEntry(); while (zipentry != null) { String entryName = zipentry.getName(); FileOutputStream fileoutputstream; File newFile = new File(entryName); String directory = newFile.getParent(); if (directory == null) { if (newFile.isDirectory()) break; } fileoutputstream = new FileOutputStream(destinationname + entryName); int n; while ((n = zipinputstream.read(buf, 0, 1024)) > -1) { fileoutputstream.write(buf, 0, n); } fileoutputstream.close(); zipinputstream.closeEntry(); zipentry = zipinputstream.getNextEntry(); } zipinputstream.close(); }
From source file:Main.java
public static void main(String[] args) throws Exception { String zipname = "d.zip"; CheckedInputStream checksum = new CheckedInputStream(new FileInputStream(zipname), new Adler32()); ZipInputStream zis = new ZipInputStream(new BufferedInputStream(checksum)); ZipEntry entry;/*from ww w.j av a 2 s.c om*/ while ((entry = zis.getNextEntry()) != null) { System.out.println("Unzipping: " + entry.getName()); int size; byte[] buffer = new byte[2048]; BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(entry.getName()), buffer.length); while ((size = zis.read(buffer, 0, buffer.length)) != -1) { bos.write(buffer, 0, size); } bos.flush(); bos.close(); } zis.close(); System.out.println("Checksum = " + checksum.getChecksum().getValue()); }
From source file:Main.java
public static void main(String[] args) throws IOException { FileOutputStream f = new FileOutputStream("test.zip"); CheckedOutputStream csum = new CheckedOutputStream(f, new Adler32()); ZipOutputStream zos = new ZipOutputStream(csum); BufferedOutputStream out = new BufferedOutputStream(zos); zos.setComment("A test of Java Zipping"); for (int i = 0; i < args.length; i++) { System.out.println("Writing file " + args[i]); BufferedReader in = new BufferedReader(new FileReader(args[i])); zos.putNextEntry(new ZipEntry(args[i])); int c;/* w ww . j a va 2s . c o m*/ while ((c = in.read()) != -1) out.write(c); in.close(); } out.close(); System.out.println("Checksum: " + csum.getChecksum().getValue()); System.out.println("Reading file"); FileInputStream fi = new FileInputStream("test.zip"); CheckedInputStream csumi = new CheckedInputStream(fi, new Adler32()); ZipInputStream in2 = new ZipInputStream(csumi); BufferedInputStream bis = new BufferedInputStream(in2); ZipEntry ze; while ((ze = in2.getNextEntry()) != null) { System.out.println("Reading file " + ze); int x; while ((x = bis.read()) != -1) System.out.write(x); } System.out.println("Checksum: " + csumi.getChecksum().getValue()); bis.close(); }
From source file:ZipCompress.java
public static void main(String[] args) throws IOException { FileOutputStream f = new FileOutputStream("test.zip"); CheckedOutputStream csum = new CheckedOutputStream(f, new Adler32()); ZipOutputStream zos = new ZipOutputStream(csum); BufferedOutputStream out = new BufferedOutputStream(zos); zos.setComment("A test of Java Zipping"); // No corresponding getComment(), though. for (int i = 0; i < args.length; i++) { System.out.println("Writing file " + args[i]); BufferedReader in = new BufferedReader(new FileReader(args[i])); zos.putNextEntry(new ZipEntry(args[i])); int c;//from w w w.j ava 2 s. com while ((c = in.read()) != -1) out.write(c); in.close(); } out.close(); // Checksum valid only after the file has been closed! System.out.println("Checksum: " + csum.getChecksum().getValue()); // Now extract the files: System.out.println("Reading file"); FileInputStream fi = new FileInputStream("test.zip"); CheckedInputStream csumi = new CheckedInputStream(fi, new Adler32()); ZipInputStream in2 = new ZipInputStream(csumi); BufferedInputStream bis = new BufferedInputStream(in2); ZipEntry ze; while ((ze = in2.getNextEntry()) != null) { System.out.println("Reading file " + ze); int x; while ((x = bis.read()) != -1) System.out.write(x); } System.out.println("Checksum: " + csumi.getChecksum().getValue()); bis.close(); // Alternative way to open and read zip files: ZipFile zf = new ZipFile("test.zip"); Enumeration e = zf.entries(); while (e.hasMoreElements()) { ZipEntry ze2 = (ZipEntry) e.nextElement(); System.out.println("File: " + ze2); // ... and extract the data as before } }
From source file:Main.java
public static ZipInputStream getFileFromZip(InputStream zipFileStream) throws IOException { ZipInputStream zis = new ZipInputStream(zipFileStream); ZipEntry ze;/*from w w w.j av a2 s.com*/ while ((ze = zis.getNextEntry()) != null) { Log.w("AssetUtil", "extracting file: '" + ze.getName() + "'..."); return zis; } return null; }
From source file:Main.java
public static byte[] unZip(byte[] data) { byte[] b = null; try {// ww w . j av a2s . c om ByteArrayInputStream bis = new ByteArrayInputStream(data); ZipInputStream zip = new ZipInputStream(bis); while (zip.getNextEntry() != null) { byte[] buf = new byte[1024]; int num = -1; ByteArrayOutputStream baos = new ByteArrayOutputStream(); while ((num = zip.read(buf, 0, buf.length)) != -1) { baos.write(buf, 0, num); } b = baos.toByteArray(); baos.flush(); baos.close(); } zip.close(); bis.close(); } catch (Exception ex) { ex.printStackTrace(); } return b; }
From source file:Main.java
public static byte[] unZip(byte[] bContent) { byte[] b = null; try {//w ww . j ava 2s .co m ByteArrayInputStream bis = new ByteArrayInputStream(bContent); ZipInputStream zip = new ZipInputStream(bis); while (zip.getNextEntry() != null) { byte[] buf = new byte[1024]; int num = -1; ByteArrayOutputStream baos = new ByteArrayOutputStream(); while ((num = zip.read(buf, 0, buf.length)) != -1) { baos.write(buf, 0, num); } b = baos.toByteArray(); baos.flush(); baos.close(); } zip.close(); bis.close(); } catch (Exception ex) { ex.printStackTrace(); } return b; }
From source file:Main.java
public static void unzip(String zipFilePath, String fileName) { try {/* w w w . j a va 2 s . c o m*/ FileInputStream fin = new FileInputStream(zipFilePath); ZipInputStream zin = new ZipInputStream(fin); do { // no-op } while (!zin.getNextEntry().getName().equals(fileName)); OutputStream os = new FileOutputStream(fileName); byte[] buffer = new byte[1024]; int length; //read the entry from zip file and extract it to disk while ((length = zin.read(buffer)) > 0) { os.write(buffer, 0, length); } os.close(); zin.close(); } catch (IOException e) { throw new RuntimeException(e); } }
From source file:Main.java
public static byte[] unZip(byte[] bContent) throws IOException { byte[] b = null; try {// w w w . j a va2s. c o m ByteArrayInputStream bis = new ByteArrayInputStream(bContent); ZipInputStream zip = new ZipInputStream(bis); while (zip.getNextEntry() != null) { byte[] buf = new byte[1024]; int num = -1; ByteArrayOutputStream baos = new ByteArrayOutputStream(); while ((num = zip.read(buf, 0, buf.length)) != -1) { baos.write(buf, 0, num); } b = baos.toByteArray(); baos.flush(); baos.close(); } zip.close(); bis.close(); } catch (Exception ex) { ex.printStackTrace(); } return b; }
From source file:Main.java
public static void unpack(InputStream in, File targetDir) throws IOException { ZipInputStream zin = new ZipInputStream(in); ZipEntry entry;/* w w w .j a v a 2 s . c o m*/ while ((entry = zin.getNextEntry()) != null) { String extractFilePath = entry.getName(); if ((extractFilePath.startsWith("/")) || (extractFilePath.startsWith("\\"))) { extractFilePath = extractFilePath.substring(1); } File extractFile = new File(new StringBuilder().append(targetDir.getPath()).append(File.separator) .append(extractFilePath).toString()); if (entry.isDirectory()) { if (!extractFile.exists()) extractFile.mkdirs(); } else { File parent = extractFile.getParentFile(); if (!parent.exists()) { parent.mkdirs(); } FileOutputStream os = new FileOutputStream(extractFile); copyFile(zin, os); os.flush(); os.close(); } } }