com.jn.langx.io.resource

类 FileResource

java.lang.Object

com.jn.langx.io.resource.AbstractResource<T>

com.jn.langx.io.resource.AbstractLocatableResource<File>

com.jn.langx.io.resource.FileResource

所有已实现的接口:

Locatable, Resource<File>, Urlable

public class FileResource
extends AbstractLocatableResource<File>

file:/home/fjn/xx/yy

字段概要

字段

限定符和类型	字段和说明
static String	FILE_URL_PATTERN
static String	PREFIX

构造器概要

构造器

构造器和说明
FileResource(String path)

方法概要

限定符和类型	方法和说明
long	contentLength() Determine the content length for this resource.
boolean	equals(Object obj)
boolean	exists() Determine whether this resource actually exists in physical form.
String	getAbsolutePath()
InputStream	getInputStream() Return an InputStream for the content of an underlying resource.
File	getRealResource()
URL	getUrl()
int	hashCode()
boolean	isReadable() Indicate whether non-empty contents of this resource can be read via Resource.getInputStream().

从类继承的方法 com.jn.langx.io.resource.AbstractLocatableResource

getLocation, getPath, getPrefix, setLocation, setLocation, toString

从类继承的方法 com.jn.langx.io.resource.AbstractResource

readableChannel

从类继承的方法 java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

字段详细资料

PREFIX

public static final String PREFIX

另请参阅:

常量字段值

FILE_URL_PATTERN

public static final String FILE_URL_PATTERN

另请参阅:

常量字段值

构造器详细资料

FileResource

public FileResource(@NonNull
                    String path)

方法详细资料

getUrl

public URL getUrl()

getAbsolutePath

public String getAbsolutePath()

getInputStream

public InputStream getInputStream()
                           throws IOException

从接口复制的说明: Resource

Return an InputStream for the content of an underlying resource.

It is expected that each call creates a fresh stream.

This requirement is particularly important when you consider an API such as JavaMail, which needs to be able to read the stream multiple times when creating mail attachments. For such a use case, it is required that each getInputStream() call returns a fresh stream.

返回:

the input stream for the underlying resource (must not be null)

抛出:

FileNotFoundException - if the underlying resource doesn't exist

IOException - if the content stream could not be opened

isReadable

public boolean isReadable()

从接口复制的说明: Resource

Indicate whether non-empty contents of this resource can be read via Resource.getInputStream().

Will be true for typical resource descriptors that exist since it strictly implies Resource.exists() semantics as of 5.1. Note that actual content reading may still fail when attempted. However, a value of false is a definitive indication that the resource content cannot be read.

指定者:

isReadable 在接口中 Resource<File>

覆盖:

isReadable 在类中 AbstractResource<File>

另请参阅:

Resource.getInputStream(), Resource.exists()

exists

public boolean exists()

从接口复制的说明: Resource

Determine whether this resource actually exists in physical form.

This method performs a definitive existence check, whereas the existence of a Resource handle only guarantees a valid descriptor handle.

指定者:

exists 在接口中 Resource<File>

覆盖:

exists 在类中 AbstractResource<File>

getRealResource

public File getRealResource()

contentLength

public long contentLength()

从接口复制的说明: Resource

Determine the content length for this resource.

equals

public boolean equals(Object obj)

覆盖:

equals 在类中 Object

hashCode

public int hashCode()

覆盖:

hashCode 在类中 Object