WritableResource (Spring Framework 4.3.30.RELEASE API)

所有超级接口:
InputStreamSource, Resource
所有已知实现类:
FileSystemResource, PathResource
```
public interface WritableResource
extends Resource
```
Extended interface for a resource that supports writing to it. Provides an OutputStream accessor.
从以下版本开始:
3.1
作者:
Juergen Hoeller
另请参阅:
OutputStream

方法概要

所有方法实例方法抽象方法
修饰符和类型	方法	说明
`OutputStream`	`getOutputStream()`	Return an `OutputStream` for the underlying resource, allowing to (over-)write its content.
`boolean`	`isWritable()`	Return whether the contents of this resource can be modified, e.g. via `getOutputStream()` or `Resource.getFile()`.

从接口继承的方法 org.springframework.core.io.InputStreamSource
getInputStream

从接口继承的方法 org.springframework.core.io.Resource
contentLength, createRelative, exists, getDescription, getFile, getFilename, getURI, getURL, isOpen, isReadable, lastModified

- 方法详细资料
  - isWritable
```
boolean isWritable()
```
    Return whether the contents of this resource can be modified, e.g. via getOutputStream() or Resource.getFile().
    Will be true for typical resource descriptors; note that actual content writing may still fail when attempted. However, a value of false is a definitive indication that the resource content cannot be modified.
    另请参阅:
    getOutputStream(), Resource.isReadable()
  - getOutputStream
```
OutputStream getOutputStream()
                      throws IOException
```
    Return an OutputStream for the underlying resource, allowing to (over-)write its content.
    抛出:
    IOException - if the stream could not be opened
    另请参阅:
    InputStreamSource.getInputStream()