java.lang.Object
- org.springframework.core.io.AbstractResource
- - org.springframework.core.io.ByteArrayResource

All Implemented Interfaces:
InputStreamSource, Resource
Direct Known Subclasses:
TransformedResource
```
public class ByteArrayResource
extends AbstractResource
```
Resource implementation for a given byte array.
Creates a ByteArrayInputStream 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.
Since:
1.2.3
Author:
Juergen Hoeller, Sam Brannen
See Also:
ByteArrayInputStream, InputStreamResource, MimeMessageHelper.addAttachment(String, InputStreamSource)

Constructor Summary

Constructors
Constructor	Description
`ByteArrayResource(byte[] byteArray)`	Create a new `ByteArrayResource`.
`ByteArrayResource(byte[] byteArray, String description)`	Create a new `ByteArrayResource` with a description.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`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 a description that includes 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.

Methods inherited from class org.springframework.core.io.AbstractResource
createRelative, getFile, getFileForLastModifiedCheck, getFilename, getURI, getURL, isOpen, isReadable, lastModified, toString

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - ByteArrayResource
```
public ByteArrayResource(byte[] byteArray)
```
    Create a new ByteArrayResource.
    Parameters:
    byteArray - the byte array to wrap
  - ByteArrayResource
```
public ByteArrayResource(byte[] byteArray,
                         String description)
```
    Create a new ByteArrayResource with a description.
    Parameters:
    byteArray - the byte array to wrap
    description - where the byte array comes from
- Method Detail
  - getByteArray
```
public final byte[] getByteArray()
```
    Return the underlying byte array.
  - exists
```
public boolean exists()
```
    This implementation always returns true.
    Specified by:
    exists in interface Resource
    Overrides:
    exists in class AbstractResource
  - contentLength
```
public long contentLength()
```
    This implementation returns the length of the underlying byte array.
    Specified by:
    contentLength in interface Resource
    Overrides:
    contentLength in class AbstractResource
    See Also:
    InputStreamSource.getInputStream()
  - getInputStream
```
public InputStream getInputStream()
                           throws IOException
```
    This implementation returns a ByteArrayInputStream for the underlying byte array.
    Returns:
    the input stream for the underlying resource (must not be null)
    Throws:
    FileNotFoundException - if the underlying resource doesn't exist
    IOException - if the content stream could not be opened
    See Also:
    ByteArrayInputStream
  - getDescription
```
public String getDescription()
```
    This implementation returns a description that includes the passed-in description, if any.
    See Also:
    Object.toString()
  - equals
```
public boolean equals(Object obj)
```
    This implementation compares the underlying byte array.
    Overrides:
    equals in class AbstractResource
    See Also:
    Arrays.equals(byte[], byte[])
  - hashCode
```
public int hashCode()
```
    This implementation returns the hash code based on the underlying byte array.
    Overrides:
    hashCode in class AbstractResource
    See Also:
    Resource.getDescription()

Class ByteArrayResource

Constructor Summary

Method Summary

Methods inherited from class org.springframework.core.io.AbstractResource

Methods inherited from class java.lang.Object

Constructor Detail

ByteArrayResource

ByteArrayResource

Method Detail

getByteArray

exists

contentLength

getInputStream

getDescription

equals

hashCode