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java.util.zip.ZipEntry翻译

2013年10月06日 ⁄ 综合 ⁄ 共 8105字 ⁄ 字号 评论关闭
 
JavaTM 2 Platform
Std. Ed. v1.4.2




java.util.zip
Class ZipEntry

java.lang.Object
  extended byjava.util.zip.ZipEntry
All Implemented Interfaces:
Cloneable, java.util.zip.ZipConstants
Direct Known Subclasses:
JarEntry



public class ZipEntry
extends Object
implements java.util.zip.ZipConstants, Cloneable

This class is used to represent a ZIP file entry. 该类用来表示ZIP文件项。



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 DEFLATED
          Compression method for compressed (deflated) entries. 压缩项(deflated)的压缩方法。
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 int STORED
          Compression method for uncompressed entries. 解压项的压缩方法。

 

Constructor Summary
ZipEntry(String name)
          Creates a new zip entry with the specified name. 创建一个指定名称的zip项。
ZipEntry(ZipEntry e)
          Creates a new zip entry with fields taken from the specified zip entry. 创建一个从指定zip项中取得域的zip项。

 

Method Summary
 Object clone()
          Returns a copy of this entry. 返回项的拷贝。
 String getComment()
          Returns the comment string for the entry, or null if none. 返回项的注释字符串,如果没有,返回null。
 long getCompressedSize()
          Returns the size of the compressed entry data, or -1 if not known. 返回已压缩的项数据大小,如果未知,返回-1。
 long getCrc()
          Returns the CRC-32 checksum of the uncompressed entry data, or -1 if not known. 返回未压缩的项数据CRC-32校验和,如果未知,返回-1。
 byte[] getExtra()
          Returns the extra field data for the entry, or null if none. 返回项的额外字段数据,如果没有返回null。
 int getMethod()
          Returns the compression method of the entry, or -1 if not specified. 返回项的压缩方法,如果未指定,返回-1。
 String getName()
          Returns the name of the entry. 返回项的名称。
 long getSize()
          Returns the uncompressed size of the entry data, or -1 if not known. 返回未压缩的项数据大小,如果未知,返回-1。
 long getTime()
          Returns the modification time of the entry, or -1 if not specified. 返回项的修改时间,如果未指定,返回-1。
 int hashCode()
          Returns the hash code value for this entry. 返回项的哈希码值。
 boolean isDirectory()
          Returns true if this is a directory entry. 如果此为目录项,返回true。
 void setComment(String comment)
          Sets the optional comment string for the entry. 设置项的可选注释字符串。
 void setCompressedSize(long csize)
          Sets the size of the compressed entry data. 设置压缩的项数据大小。
 void setCrc(long crc)
          Sets the CRC-32 checksum of the uncompressed entry data. 设置未压缩的项数据的CRC-32校验和。
 void setExtra(byte[] extra)
          Sets the optional extra field data for the entry. 设置项的可选额外字段数据。
 void setMethod(int method)
          Sets the compression method for the entry. 设置项的压缩方法。
 void setSize(long size)
          Sets the uncompressed size of the entry data. 设置未压缩的项数据大小。
 void setTime(long time)
          Sets the modification time of the entry. 设置项的修改时间。
 String toString()
          Returns a string representation of the ZIP entry. 返回ZIP项的字符串形式。

 

Methods inherited from class java.lang.Object
equals, finalize, getClass, notify, notifyAll, wait, wait, wait

 

Field Detail


STORED

public static final int STORED
Compression method for uncompressed entries. 解压项的压缩方法。

See Also:
Constant Field Values




DEFLATED

public static final int DEFLATED
Compression method for compressed (deflated) entries. 压缩项(deflated)的压缩方法。

See Also:
Constant Field Values




LOCSIG

public static final long LOCSIG
See Also:
Constant Field Values




EXTSIG

public static final long EXTSIG
See Also:
Constant Field Values




CENSIG

public static final long CENSIG
See Also:
Constant Field Values




ENDSIG

public static final long ENDSIG
See Also:
Constant Field Values




LOCHDR

public static final int LOCHDR
See Also:
Constant Field Values




EXTHDR

public static final int EXTHDR
See Also:
Constant Field Values




CENHDR

public static final int CENHDR
See Also:
Constant Field Values




ENDHDR

public static final int ENDHDR
See Also:
Constant Field Values




LOCVER

public static final int LOCVER
See Also:
Constant Field Values




LOCFLG

public static final int LOCFLG
See Also:
Constant Field Values




LOCHOW

public static final int LOCHOW
See Also:
Constant Field Values




LOCTIM

public static final int LOCTIM
See Also:
Constant Field Values




LOCCRC

public static final int LOCCRC
See Also:
Constant Field Values




LOCSIZ

public static final int LOCSIZ
See Also:
Constant Field Values




LOCLEN

public static final int LOCLEN
See Also:
Constant Field Values




LOCNAM

public static final int LOCNAM
See Also:
Constant Field Values




LOCEXT

public static final int LOCEXT
See Also:
Constant Field Values




EXTCRC

public static final int EXTCRC
See Also:
Constant Field Values




EXTSIZ

public static final int EXTSIZ
See Also:
Constant Field Values




EXTLEN

public static final int EXTLEN
See Also:
Constant Field Values




CENVEM

public static final int CENVEM
See Also:
Constant Field Values




CENVER

public static final int CENVER
See Also:
Constant Field Values




CENFLG

public static final int CENFLG
See Also:
Constant Field Values




CENHOW

public static final int CENHOW
See Also:
Constant Field Values




CENTIM

public static final int CENTIM
See Also:
Constant Field Values




CENCRC

public static final int CENCRC
See Also:
Constant Field Values




CENSIZ

public static final int CENSIZ
See Also:
Constant Field Values




CENLEN

public static final int CENLEN
See Also:
Constant Field Values




CENNAM

public static final int CENNAM
See Also:
Constant Field Values




CENEXT

public static final int CENEXT
See Also:
Constant Field Values




CENCOM

public static final int CENCOM
See Also:
Constant Field Values




CENDSK

public static final int CENDSK
See Also:
Constant Field Values




CENATT

public static final int CENATT
See Also:
Constant Field Values




CENATX

public static final int CENATX
See Also:
Constant Field Values




CENOFF

public static final int CENOFF
See Also:
Constant Field Values




ENDSUB

public static final int ENDSUB
See Also:
Constant Field Values




ENDTOT

public static final int ENDTOT
See Also:
Constant Field Values




ENDSIZ

public static final int ENDSIZ
See Also:
Constant Field Values




ENDOFF

public static final int ENDOFF
See Also:
Constant Field Values




ENDCOM

public static final int ENDCOM
See Also:
Constant Field Values


Constructor Detail


ZipEntry

public ZipEntry(String name)
Creates a new zip entry with the specified name. 创建一个指定名称的zip项。

Parameters:
name - the entry name 项名称
Throws:
NullPointerException - if the entry name is null 如果项名称为null抛出
IllegalArgumentException - if the entry name is longer than 0xFFFF bytes 如果项名称长度大于0xFFFF字节数抛出




ZipEntry

public ZipEntry(ZipEntry e)
Creates a new zip entry with fields taken from the specified zip entry. 创建一个从指定zip项中取得域的zip项。

Parameters:
e - a zip Entry object zip项对象


Method Detail


getName

public String getName()
Returns the name of the entry. 返回项的名称。

Returns:
the name of the entry 项的名称




setTime

public void setTime(long time)
Sets the modification time of the entry. 设置项的修改时间。

Parameters:
time - the entry modification time in number of milliseconds since the epoch 从纪元开始的毫秒数表示的项修改时间
See Also:
getTime()




getTime

public long getTime()
Returns the modification time of the entry, or -1 if not specified. 返回项的修改时间,如果未指定,返回-1。

Returns:
the modification time of the entry, or -1 if not specified 项的修改时间,如果未指定,返回-1
See Also:
setTime(long)




setSize

public void setSize(long size)
Sets the uncompressed size of the entry data. 设置未压缩的项数据大小。

Parameters:
size - the uncompressed size in bytes 未压缩的字节数
Throws:
IllegalArgumentException - if the specified size is less than 0 or greater than 0xFFFFFFFF bytes 如果指定的大小小于0或者大于0xFFFFFFFF字节时抛出
See Also:
getSize()




getSize

public long getSize()
Returns the uncompressed size of the entry data, or -1 if not known. 返回未压缩的项数据大小,如果未知,返回-1。

Returns:
the uncompressed size of the entry data, or -1 if not known 未压缩的项数据大小,如果未知,返回-1
See Also:
setSize(long)




getCompressedSize

public long getCompressedSize()
Returns the size of the compressed entry data, or -1 if not known. In the case of a stored entry, the compressed size will be the same as the uncompressed size of the entry. 返回已压缩的项数据大小

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