org.jretty.util.resource

类 ByteArrayResource

java.lang.Object

org.jretty.util.resource.AbstractResource

org.jretty.util.resource.ByteArrayResource

所有已实现的接口:

InputStreamSource, Resource

public class ByteArrayResource
extends AbstractResource

Resource implementation for a given byte array. Creates a ByteArrayInputStreams for the given byte array.

Useful for loading content from any given byte array, without having to resort to a single-use InputStreamResource. Particularly useful for creating mail attachments from local content, where JavaMail needs to be able to read the stream multiple times.

从以下版本开始:

1.2.3

作者:

Juergen Hoeller

另请参阅:

ByteArrayInputStream, InputStreamResource, org.springframework.mail.javamail.MimeMessageHelper#addAttachment(String, InputStreamSource)

构造器概要

构造器

构造器和说明
ByteArrayResource(byte[] byteArray) Create a new ByteArrayResource.
ByteArrayResource(byte[] byteArray, String description) Create a new ByteArrayResource.

方法概要

限定符和类型	方法和说明
long	contentLength() This implementation returns the length of the underlying byte array.
boolean	equals(Object obj) This implementation compares the underlying byte array.
boolean	exists() This implementation always returns true.
byte[]	getByteArray() Return the underlying byte array.
String	getDescription() This implementation returns the passed-in description, if any.
InputStream	getInputStream() This implementation returns a ByteArrayInputStream for the underlying byte array.
int	hashCode() This implementation returns the hash code based on the underlying byte array.

从类继承的方法 org.jretty.util.resource.AbstractResource

createRelative, getFile, getFileForLastModifiedCheck, getFilename, getURI, getURL, isOpen, isReadable, lastModified, toString

从类继承的方法 java.lang.Object

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

构造器详细资料

ByteArrayResource

public ByteArrayResource(byte[] byteArray)

Create a new ByteArrayResource.

参数:

byteArray - the byte array to wrap

ByteArrayResource

public ByteArrayResource(byte[] byteArray,
                         String description)

Create a new ByteArrayResource.

参数:

byteArray - the byte array to wrap

description - where the byte array comes from

方法详细资料

getByteArray

public final byte[] getByteArray()

Return the underlying byte array.

exists

public boolean exists()

This implementation always returns true.

指定者:

exists 在接口中 Resource

覆盖:

exists 在类中 AbstractResource

contentLength

public long contentLength()

This implementation returns the length of the underlying byte array.

指定者:

contentLength 在接口中 Resource

覆盖:

contentLength 在类中 AbstractResource

另请参阅:

InputStreamSource.getInputStream()

getInputStream

public InputStream getInputStream()
                           throws IOException

This implementation returns a ByteArrayInputStream for the underlying byte array.

返回:

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

抛出:

IOException - if the stream could not be opened ·

另请参阅:

ByteArrayInputStream

getDescription

public String getDescription()

This implementation returns the passed-in description, if any.

另请参阅:

Object.toString()

equals

public boolean equals(Object obj)

This implementation compares the underlying byte array.

覆盖:

equals 在类中 AbstractResource

另请参阅:

Arrays.equals(byte[], byte[])

hashCode

public int hashCode()

This implementation returns the hash code based on the underlying byte array.

覆盖:

hashCode 在类中 AbstractResource

另请参阅:

Resource.getDescription()