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

所有已实现的接口:
InputStreamSource, Resource
```
public class DescriptiveResource
extends AbstractResource
```
Simple Resource implementation that holds a resource description but does not point to an actually readable resource.
To be used as placeholder if a Resource argument is expected by an API but not necessarily used for actual reading.
从以下版本开始:
1.2.6
作者:
Juergen Hoeller

构造器概要
构造器
构造器说明
DescriptiveResource(String description)
Create a new DescriptiveResource.

方法概要

所有方法实例方法具体方法
修饰符和类型	方法	说明
`boolean`	`equals(Object other)`	This implementation compares the underlying description String.
`boolean`	`exists()`	This implementation checks whether a File can be opened, falling back to whether an InputStream can be opened.
`String`	`getDescription()`	Return a description for this resource, to be used for error output when working with the resource.
`InputStream`	`getInputStream()`	Return an `InputStream` for the content of an underlying resource.
`int`	`hashCode()`	This implementation returns the hash code of the underlying description String.
`boolean`	`isReadable()`	This implementation always returns `true` for a resource that `exists` (revised as of 5.1).

从类继承的方法 org.springframework.core.io.AbstractResource
contentLength, createRelative, getFile, getFileForLastModifiedCheck, getFilename, getURI, getURL, isFile, isOpen, lastModified, readableChannel, 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
  - DescriptiveResource
```
public DescriptiveResource(@Nullable
                           String description)
```
    Create a new DescriptiveResource.
    参数:
    description - the resource description
- 方法详细资料
  - exists
```
public boolean exists()
```
    从类复制的说明: AbstractResource
    This implementation checks whether a File can be opened, falling back to whether an InputStream can be opened. This will cover both directories and content resources.
    指定者:
    exists 在接口中 Resource
    覆盖:
    exists 在类中 AbstractResource
  - isReadable
```
public boolean isReadable()
```
    从类复制的说明: AbstractResource
    This implementation always returns true for a resource that exists (revised as of 5.1).
    指定者:
    isReadable 在接口中 Resource
    覆盖:
    isReadable 在类中 AbstractResource
    另请参阅:
    InputStreamSource.getInputStream(), Resource.exists()
  - getInputStream
```
public InputStream getInputStream()
                           throws IOException
```
    从接口复制的说明: InputStreamSource
    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
  - getDescription
```
public String getDescription()
```
    从接口复制的说明: Resource
    Return a description for this resource, to be used for error output when working with the resource.
    Implementations are also encouraged to return this value from their toString method.
    另请参阅:
    Object.toString()
  - equals
```
public boolean equals(@Nullable
                      Object other)
```
    This implementation compares the underlying description String.
    覆盖:
    equals 在类中 AbstractResource
    另请参阅:
    Resource.getDescription()
  - hashCode
```
public int hashCode()
```
    This implementation returns the hash code of the underlying description String.
    覆盖:
    hashCode 在类中 AbstractResource
    另请参阅:
    Resource.getDescription()

类 DescriptiveResource

构造器概要

方法概要

从类继承的方法 org.springframework.core.io.AbstractResource

从类继承的方法 java.lang.Object

构造器详细资料

DescriptiveResource

方法详细资料

exists

isReadable

getInputStream

getDescription

equals

hashCode