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.
ByteArrayInputStream
,
InputStreamResource
,
org.springframework.mail.javamail.MimeMessageHelper#addAttachment(String, InputStreamSource)
构造器和说明 |
---|
ByteArrayResource(byte[] byteArray)
Create a new ByteArrayResource.
|
ByteArrayResource(byte[] byteArray,
String description)
Create a new ByteArrayResource.
|
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.
|
createRelative, getFile, getFileForLastModifiedCheck, getFilename, getURI, getURL, isOpen, isReadable, lastModified, toString
public ByteArrayResource(byte[] byteArray)
byteArray
- the byte array to wrappublic ByteArrayResource(byte[] byteArray, String description)
byteArray
- the byte array to wrapdescription
- where the byte array comes frompublic final byte[] getByteArray()
public boolean exists()
true
.exists
在接口中 Resource
exists
在类中 AbstractResource
public long contentLength()
contentLength
在接口中 Resource
contentLength
在类中 AbstractResource
InputStreamSource.getInputStream()
public InputStream getInputStream() throws IOException
null
)IOException
- if the stream could not be opened
·ByteArrayInputStream
public String getDescription()
Object.toString()
public boolean equals(Object obj)
equals
在类中 AbstractResource
Arrays.equals(byte[], byte[])
public int hashCode()
hashCode
在类中 AbstractResource
Resource.getDescription()
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