Class java.util.zip.ZipInputStream - JDK 5 Documentation v1.1.8, Java 2 SDK 英文文档

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Class java.util.zip.ZipInputStream

java.lang.Object
   |
   +----java.io.InputStream
           |
           +----java.io.FilterInputStream
                   |
                   +----java.util.zip.InflaterInputStream
                           |
                           +----java.util.zip.ZipInputStream

public class ZipInputStream
extends InflaterInputStream
implements ZipConstants

This class implements an input stream filter for reading files in the ZIP file format. Includes support for both compressed and uncompressed entries.

ZipInputStream(InputStream): Creates a new ZIP input stream.

close(): Closes the ZIP input stream.
closeEntry(): Closes the current ZIP entry and positions the stream for reading the next entry.
getNextEntry(): Reads the next ZIP file entry and positions stream at the beginning of the entry data.
read(byte[], int, int): Reads from the current ZIP entry into an array of bytes.
skip(long): Skips specified number of bytes in the current ZIP entry.

ZipInputStream

 public ZipInputStream(InputStream in)

Creates a new ZIP input stream.

Parameters:: in - the actual input stream

getNextEntry

 public ZipEntry getNextEntry() throws IOException

Reads the next ZIP file entry and positions stream at the beginning of the entry data.

Throws: ZipException: if a ZIP file error has occurred
Throws: IOException: if an I/O error has occurred

closeEntry

 public void closeEntry() throws IOException

Closes the current ZIP entry and positions the stream for reading the next entry.

Throws: ZipException: if a ZIP file error has occurred
Throws: IOException: if an I/O error has occurred

read

 public int read(byte b[],
                 int off,
                 int len) throws IOException

Reads from the current ZIP entry into an array of bytes. Blocks until some input is available.

Parameters:: b - the buffer into which the data is read; off - the start offset of the data; len - the maximum number of bytes read
Returns:: the actual number of bytes read, or -1 if the end of the entry is reached
Throws: ZipException: if a ZIP file error has occurred
Throws: IOException: if an I/O error has occurred
Overrides:: read in class InflaterInputStream

skip

 public long skip(long n) throws IOException

Skips specified number of bytes in the current ZIP entry.

Parameters:: n - the number of bytes to skip
Returns:: the actual number of bytes skipped
Throws: ZipException: if a ZIP file error has occurred
Throws: IOException: if an I/O error has occurred
Overrides:: skip in class InflaterInputStream

close

 public void close() throws IOException

Closes the ZIP input stream.

Throws: IOException: if an I/O error has occurred
Overrides:: close in class FilterInputStream

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