public class ClassPathResource extends AbstractFileResolvingResource
Resource
implementation for class path resources.
Uses either a given ClassLoader or a given Class for loading resources.
Supports resolution as java.io.File
if the class path
resource resides in the file system, but not for resources in a JAR.
Always supports resolution as URL.
ClassLoader.getResourceAsStream(String)
,
Class.getResourceAsStream(String)
限定符 | 构造器和说明 |
---|---|
|
ClassPathResource(String path)
Create a new
ClassPathResource for ClassLoader usage. |
|
ClassPathResource(String path,
Class<?> clazz)
Create a new
ClassPathResource for Class usage. |
|
ClassPathResource(String path,
ClassLoader classLoader)
Create a new
ClassPathResource for ClassLoader usage. |
protected |
ClassPathResource(String path,
ClassLoader classLoader,
Class<?> clazz)
Create a new
ClassPathResource with optional ClassLoader
and Class . |
限定符和类型 | 方法和说明 |
---|---|
Resource |
createRelative(String relativePath)
This implementation creates a ClassPathResource, applying the given path
relative to the path of the underlying resource of this descriptor.
|
boolean |
equals(Object obj)
This implementation compares the underlying class path locations.
|
boolean |
exists()
This implementation checks for the resolution of a resource URL.
|
ClassLoader |
getClassLoader()
Return the ClassLoader that this resource will be obtained from.
|
String |
getDescription()
This implementation returns a description that includes the class path location.
|
String |
getFilename()
This implementation returns the name of the file that this class path
resource refers to.
|
InputStream |
getInputStream()
This implementation opens an InputStream for the given class path resource.
|
String |
getPath()
Return the path for this resource (as resource path within the class path).
|
URL |
getURL()
This implementation returns a URL for the underlying class path resource,
if available.
|
int |
hashCode()
This implementation returns the hash code of the underlying
class path location.
|
protected URL |
resolveURL()
Resolves a URL for the underlying class path resource.
|
contentLength, customizeConnection, customizeConnection, getFile, getFile, getFileForLastModifiedCheck, isReadable, lastModified
getURI, isOpen, toString
public ClassPathResource(String path)
ClassPathResource
for ClassLoader
usage.
A leading slash will be removed, as the ClassLoader resource access
methods will not accept it.
The thread context class loader will be used for loading the resource.
path
- the absolute path within the class pathClassLoader.getResourceAsStream(String)
,
org.springframework.util.ClassUtils#getDefaultClassLoader()
public ClassPathResource(String path, ClassLoader classLoader)
ClassPathResource
for ClassLoader
usage.
A leading slash will be removed, as the ClassLoader resource access
methods will not accept it.path
- the absolute path within the classpathclassLoader
- the class loader to load the resource with,
or null
for the thread context class loaderClassLoader.getResourceAsStream(String)
public ClassPathResource(String path, Class<?> clazz)
ClassPathResource
for Class
usage.
The path can be relative to the given class, or absolute within
the classpath via a leading slash.path
- relative or absolute path within the class pathclazz
- the class to load resources withClass.getResourceAsStream(java.lang.String)
protected ClassPathResource(String path, ClassLoader classLoader, Class<?> clazz)
ClassPathResource
with optional ClassLoader
and Class
. Only for internal usage.path
- relative or absolute path within the classpathclassLoader
- the class loader to load the resource with, if anyclazz
- the class to load resources with, if anypublic final String getPath()
public final ClassLoader getClassLoader()
public boolean exists()
exists
在接口中 Resource
exists
在类中 AbstractFileResolvingResource
ClassLoader.getResource(String)
,
Class.getResource(String)
protected URL resolveURL()
null
if not resolvablepublic InputStream getInputStream() throws IOException
null
)IOException
- if the stream could not be opened
·ClassLoader.getResourceAsStream(String)
,
Class.getResourceAsStream(String)
public URL getURL() throws IOException
getURL
在接口中 Resource
getURL
在类中 AbstractResource
IOException
- if the resource cannot be resolved as URL,
i.e. if the resource is not available as descriptorClassLoader.getResource(String)
,
Class.getResource(String)
public Resource createRelative(String relativePath)
createRelative
在接口中 Resource
createRelative
在类中 AbstractResource
relativePath
- the relative path (relative to this resource)org.springframework.util.StringUtils#applyRelativePath(String, String)
public String getFilename()
getFilename
在接口中 Resource
getFilename
在类中 AbstractResource
org.springframework.util.StringUtils#getFilename(String)
public String getDescription()
Object.toString()
public boolean equals(Object obj)
equals
在类中 AbstractResource
Resource.getDescription()
public int hashCode()
hashCode
在类中 AbstractResource
Resource.getDescription()
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