类 DefaultResourceLoader
- java.lang.Object
- org.springframework.core.io.DefaultResourceLoader
- 所有已实现的接口:
ResourceLoader
- 直接已知子类:
AbstractApplicationContext
,ClassRelativeResourceLoader
,FileSystemResourceLoader
,PortletContextResourceLoader
,ServletContextResourceLoader
public class DefaultResourceLoader extends Object implements ResourceLoader
Default implementation of theResourceLoader
interface. Used byResourceEditor
, and serves as base class forAbstractApplicationContext
. Can also be used standalone.Will return a
UrlResource
if the location value is a URL, and aClassPathResource
if it is a non-URL path or a "classpath:" pseudo-URL.- 从以下版本开始:
- 10.03.2004
- 作者:
- Juergen Hoeller
- 另请参阅:
FileSystemResourceLoader
,ClassPathXmlApplicationContext
嵌套类概要
嵌套类 修饰符和类型 类 说明 protected static class
DefaultResourceLoader.ClassPathContextResource
ClassPathResource that explicitly expresses a context-relative path through implementing the ContextResource interface.
字段概要
从接口继承的字段 org.springframework.core.io.ResourceLoader
CLASSPATH_URL_PREFIX
构造器概要
构造器 构造器 说明 DefaultResourceLoader()
Create a new DefaultResourceLoader.DefaultResourceLoader(ClassLoader classLoader)
Create a new DefaultResourceLoader.
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 void
addProtocolResolver(ProtocolResolver resolver)
Register the given resolver with this resource loader, allowing for additional protocols to be handled.ClassLoader
getClassLoader()
Return the ClassLoader to load class path resources with.Collection<ProtocolResolver>
getProtocolResolvers()
Return the collection of currently registered protocol resolvers, allowing for introspection as well as modification.Resource
getResource(String location)
Return a Resource handle for the specified resource location.protected Resource
getResourceByPath(String path)
Return a Resource handle for the resource at the given path.void
setClassLoader(ClassLoader classLoader)
Specify the ClassLoader to load class path resources with, ornull
for using the thread context class loader at the time of actual resource access.
构造器详细资料
DefaultResourceLoader
public DefaultResourceLoader()
Create a new DefaultResourceLoader.ClassLoader access will happen using the thread context class loader at the time of this ResourceLoader's initialization.
DefaultResourceLoader
public DefaultResourceLoader(ClassLoader classLoader)
Create a new DefaultResourceLoader.- 参数:
classLoader
- the ClassLoader to load class path resources with, ornull
for using the thread context class loader at the time of actual resource access
方法详细资料
setClassLoader
public void setClassLoader(ClassLoader classLoader)
Specify the ClassLoader to load class path resources with, ornull
for using the thread context class loader at the time of actual resource access.The default is that ClassLoader access will happen using the thread context class loader at the time of this ResourceLoader's initialization.
getClassLoader
public ClassLoader getClassLoader()
Return the ClassLoader to load class path resources with.Will get passed to ClassPathResource's constructor for all ClassPathResource objects created by this resource loader.
- 指定者:
getClassLoader
在接口中ResourceLoader
- 返回:
- the ClassLoader (only
null
if even the system ClassLoader isn't accessible) - 另请参阅:
ClassPathResource
addProtocolResolver
public void addProtocolResolver(ProtocolResolver resolver)
Register the given resolver with this resource loader, allowing for additional protocols to be handled.Any such resolver will be invoked ahead of this loader's standard resolution rules. It may therefore also override any default rules.
- 从以下版本开始:
- 4.3
- 另请参阅:
getProtocolResolvers()
getProtocolResolvers
public Collection<ProtocolResolver> getProtocolResolvers()
Return the collection of currently registered protocol resolvers, allowing for introspection as well as modification.- 从以下版本开始:
- 4.3
getResource
public Resource getResource(String location)
从接口复制的说明:ResourceLoader
Return a Resource handle for the specified resource location.The handle should always be a reusable resource descriptor, allowing for multiple
InputStreamSource.getInputStream()
calls.- Must support fully qualified URLs, e.g. "file:C:/test.dat".
- Must support classpath pseudo-URLs, e.g. "classpath:test.dat".
- Should support relative file paths, e.g. "WEB-INF/test.dat". (This will be implementation-specific, typically provided by an ApplicationContext implementation.)
Note that a Resource handle does not imply an existing resource; you need to invoke
Resource.exists()
to check for existence.- 指定者:
getResource
在接口中ResourceLoader
- 参数:
location
- the resource location- 返回:
- a corresponding Resource handle (never
null
) - 另请参阅:
ResourceLoader.CLASSPATH_URL_PREFIX
,Resource.exists()
,InputStreamSource.getInputStream()
getResourceByPath
protected Resource getResourceByPath(String path)
Return a Resource handle for the resource at the given path.The default implementation supports class path locations. This should be appropriate for standalone implementations but can be overridden, e.g. for implementations targeted at a Servlet container.
- 参数:
path
- the path to the resource- 返回:
- the corresponding Resource handle
- 另请参阅:
ClassPathResource
,FileSystemXmlApplicationContext.getResourceByPath(java.lang.String)
,AbstractRefreshableWebApplicationContext.getResourceByPath(java.lang.String)