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java.util.zip.ZipEntry翻译

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JavaTM 2 Platform
Std. Ed. v1.4.2
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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，如果未知，返回-1。在存储项的情况下，压缩尺寸将和未压缩项相同。

Returns:

the size of the compressed entry data, or -1 if not known 已压缩的项数据大小，如果未知，返回-1

See Also:

setCompressedSize(long)


setCompressedSize

public void setCompressedSize(long csize)
Sets the size of the compressed entry data. 设置压缩的项数据大小。

Parameters:

csize – the compressed size to set to 要设置的压缩尺寸

See Also:

getCompressedSize()


setCrc

public 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。

Parameters:

crc – the CRC-32 value CRC-32值

Throws:

IllegalArgumentException
– if the specified CRC-32 value is less than 0 or greater than 0xFFFFFFFF 如果指定的CRC-32值小于0或者大于0xFFFFFFFF时抛出

See Also:

setCrc(long)


getCrc

public 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。

Returns:

the CRC-32 checksum of the uncompressed entry data, or -1 if not known 未压缩的项数据CRC-32校验和，如果未知，返回-1

See Also:

getCrc()


setMethod

public void setMethod(int method)
Sets the compression method for the entry. 设置项的压缩方法。

Parameters:

method – the compression method, either STORED or DEFLATED 压缩方法，STORED或DEFLATED

Throws:

IllegalArgumentException
– if the specified compression method is invalid  如果指定的压缩方法无效抛出

See Also:

getMethod()


getMethod

public 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。

Returns:

the compression method of the entry, or -1 if not specified 项的压缩方法，如果未指定，返回-1

See Also:

setMethod(int)


setExtra

public 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。

Parameters:

extra – the extra field data bytes 额外字段数据

Throws:

IllegalArgumentException
– if the length of the specified extra field data is greater than 0xFFFF bytes 如果指定的额外字段数据长度大于0xFFFF字节抛出

See Also:

getExtra()


getExtra

public 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。

Returns:

the extra field data for the entry, or null if none 项的额外字段数据，如果没有返回null

See Also:

setExtra(byte[])


setComment

public void setComment(String comment)
Sets the optional comment string for the entry. 设置项的可选注释字符串。

Parameters:

comment – the comment string 注释字符串

Throws:

IllegalArgumentException
– if the length of the specified comment string is greater than 0xFFFF bytes 如果指定的注释字符串长度大于0xFFFF字节抛出

See Also:

getComment()


getComment

public 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。

Returns:

the comment string for the entry, or null if none 项的注释字符串，如果没有，返回null

See Also:

setComment(String)


isDirectory

public boolean isDirectory()
Returns true if this is a directory entry. A directory entry is defined to be one whose name ends with a ‘/’. 如果此为目录项，返回true。目录项定义为名称以‘/’结尾。

Returns:

true if this is a directory entry 如果此为目录项，返回true


toString

public String toString()
Returns a string representation of the ZIP entry. 返回ZIP项的字符串形式。

Overrides:

toString
in class Object
Returns:

a string representation of the object. 对象的字符串形式。


hashCode

public int hashCode()
Returns the hash code value for this entry. 返回项的哈希码值。

Overrides:

hashCode
in class Object
Returns:

a hash code value for this object. 对象的哈希码值。

See Also:

Object.equals(java.lang.Object)
,
Hashtable


clone

public Object clone()
Returns a copy of this entry. 返回项的拷贝。

Overrides:

clone
in class Object
Returns:

a clone of this instance. 实例的拷贝。

See Also:

Cloneable



Overview  Package   Class  Use  Tree  Deprecated  Index  Help 
JavaTM 2 Platform
Std. Ed. v1.4.2
 PREV CLASS   NEXT CLASS FRAMES    NO FRAMES    <script type=”text/javascript”> &lt;!– if(window==top) { document.writeln(‘&lt;A HREF=”../../../allclasses-noframe.html”&gt;&lt;B&gt;All Classes&lt;/B&gt;&lt;/A&gt;’); } //–&gt; </script> All Classes
SUMMARY: NESTED | FIELD | CONSTR | METHOD DETAIL: FIELD | CONSTR | METHOD



Submit a bug or feature


For further API reference and developer documentation, see
Java 2 SDK SE Developer Documentation
. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2003 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.

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