cn.hutool.core.io.resource

Class MultiResource

java.lang.Object

cn.hutool.core.io.resource.MultiResource

All Implemented Interfaces:

Resource, Serializable, Iterable<Resource>, Iterator<Resource>

Direct Known Subclasses:

MultiFileResource

public class MultiResource
extends Object
implements Resource, Iterable<Resource>, Iterator<Resource>, Serializable

多资源组合资源
此资源为一个利用游标自循环资源，只有调用next() 方法才会获取下一个资源，使用完毕后调用reset()方法重置游标

Since:

4.1.0

Author:

looly

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
MultiResource(Collection<Resource> resources) 构造
MultiResource(Resource... resources) 构造

Method Summary

Modifier and Type	Method and Description
MultiResource	add(Resource resource) 增加资源
String	getName() 获取资源名，例如文件资源的资源名为文件名
BufferedReader	getReader(Charset charset) 获得Reader
InputStream	getStream() 获得 InputStream
URL	getUrl() 获得解析后的URL，无对应URL的返回null
boolean	hasNext()
boolean	isModified() 检查资源是否变更 一般用于文件类资源，检查文件是否被修改过。
Iterator<Resource>	iterator()
Resource	next()
byte[]	readBytes() 读取资源内容，读取完毕后会关闭流 关闭流并不影响下一次读取
String	readStr(Charset charset) 读取资源内容，读取完毕后会关闭流 关闭流并不影响下一次读取
String	readUtf8Str() 读取资源内容，读取完毕后会关闭流 关闭流并不影响下一次读取
void	remove()
void	reset() 重置游标

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface cn.hutool.core.io.resource.Resource

writeTo

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Methods inherited from interface java.util.Iterator

forEachRemaining

Constructor Detail

MultiResource

public MultiResource(Resource... resources)

构造

Parameters:

resources - 资源数组

MultiResource

public MultiResource(Collection<Resource> resources)

构造

Parameters:

resources - 资源列表

Method Detail

getName

public String getName()

Description copied from interface: Resource

获取资源名，例如文件资源的资源名为文件名

Specified by:

getName in interface Resource

Returns:

资源名

getUrl

public URL getUrl()

Description copied from interface: Resource

获得解析后的URL，无对应URL的返回null

Specified by:

getUrl in interface Resource

Returns:

解析后的URL

getStream

public InputStream getStream()

Description copied from interface: Resource

获得 InputStream

Specified by:

getStream in interface Resource

Returns:

InputStream

isModified

public boolean isModified()

Description copied from interface: Resource

检查资源是否变更
一般用于文件类资源，检查文件是否被修改过。

Specified by:

isModified in interface Resource

Returns:

是否变更

getReader

public BufferedReader getReader(Charset charset)

Description copied from interface: Resource

获得Reader

Specified by:

getReader in interface Resource

Parameters:

charset - 编码

Returns:

BufferedReader

readStr

public String readStr(Charset charset)
               throws IORuntimeException

Description copied from interface: Resource

读取资源内容，读取完毕后会关闭流
关闭流并不影响下一次读取

Specified by:

readStr in interface Resource

Parameters:

charset - 编码

Returns:

读取资源内容

Throws:

IORuntimeException - 包装IOException

readUtf8Str

public String readUtf8Str()
                   throws IORuntimeException

Description copied from interface: Resource

读取资源内容，读取完毕后会关闭流
关闭流并不影响下一次读取

Specified by:

readUtf8Str in interface Resource

Returns:

读取资源内容

Throws:

IORuntimeException - 包装IOException

readBytes

public byte[] readBytes()
                 throws IORuntimeException

Description copied from interface: Resource

读取资源内容，读取完毕后会关闭流
关闭流并不影响下一次读取

Specified by:

readBytes in interface Resource

Returns:

读取资源内容

Throws:

IORuntimeException - 包装IOException

iterator

public Iterator<Resource> iterator()

Specified by:

iterator in interface Iterable<Resource>

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<Resource>

next

public Resource next()

Specified by:

next in interface Iterator<Resource>

remove

public void remove()

Specified by:

remove in interface Iterator<Resource>

reset

public void reset()

重置游标

add

public MultiResource add(Resource resource)

增加资源

Parameters:

resource - 资源

Returns:

this