net.hasor.web.upload.factorys.disk

类 DiskFileItem

java.lang.Object

net.hasor.web.upload.FileItemBase

net.hasor.web.upload.factorys.disk.DiskFileItem

所有已实现的接口:

FileItem, FileItemStream

public class DiskFileItem
extends FileItemBase

磁盘缓存,50KB以内的数据在内存中驻留,超过50KB的数据全部走磁盘缓存。

版本:

: 2016-08-31

作者:

赵永春 (zyc@hasor.net)

字段概要

字段

限定符和类型	字段和说明
static int	DEFAULT_SIZE_THRESHOLD

构造器概要

构造器

构造器和说明
DiskFileItem(FileItemStream stream, File cacheFile)

方法概要

限定符和类型	方法和说明
void	deleteOrSkip() Deletes the underlying storage for a file item, including deleting any associated temporary disk file.
protected void	finalize()
long	getSize() Returns the size of the file item.
protected void	init(FileItemStream stream, File cacheFile)
InputStream	openStream() Creates an InputStream, which allows to read the items contents.

从类继承的方法 net.hasor.web.upload.FileItemBase

get, getContentType, getFieldName, getHeaders, getName, getString, getString, isFormField, writeTo, writeTo

从类继承的方法 java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

DEFAULT_SIZE_THRESHOLD

public static final int DEFAULT_SIZE_THRESHOLD

另请参阅:

常量字段值

构造器详细资料

DiskFileItem

public DiskFileItem(FileItemStream stream,
                    File cacheFile)
             throws IOException

抛出:

IOException

方法详细资料

init

protected void init(FileItemStream stream,
                    File cacheFile)
             throws IOException

抛出:

IOException

finalize

protected void finalize()
                 throws Throwable

覆盖:

finalize 在类中 Object

抛出:

Throwable

getSize

public long getSize()

从接口复制的说明: FileItem

Returns the size of the file item.

返回:

The size of the file item, in bytes.

deleteOrSkip

public void deleteOrSkip()

从接口复制的说明: FileItem

Deletes the underlying storage for a file item, including deleting any associated temporary disk file. Although this storage will be deleted automatically when the FileItem instance is garbage collected, this method can be used to ensure that this is done at an earlier time, thus preserving system resources.

openStream

public InputStream openStream()
                       throws IOException

从接口复制的说明: FileItemStream

Creates an InputStream, which allows to read the items contents.

返回:

The input stream, from which the items data may be read.

抛出:

IOException - An I/O error occurred.