Cache (bus-all 5.5.0 API)

java.lang.Object
- org.aoju.bus.http.cache.Cache

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable
```
public final class Cache
extends Object
implements Closeable, Flushable
```
缓存HTTP和HTTPS对文件系统的响应，以便可以重用它们，从而节省时间和带宽.

Since:

JDK 1.8+

Version:

5.5.0

Author:

Kimi Liu

Field Summary

Fields
Modifier and Type Field and Description

InternalCache internalCache

Fields
Modifier and Type	Field and Description
`InternalCache`	`internalCache`

Constructor Summary

Constructors
Constructor and Description

Cache(File directory, long maxSize)
在directory中创建最多maxSize字节的缓存

Constructors
Constructor and Description
`Cache(File directory, long maxSize)` 在`directory`中创建最多`maxSize`字节的缓存

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`close()`
`void`	`delete()` 关闭缓存并删除其所有存储值。这将删除缓存目录中的所有文件，包括没有由缓存创建的文件
`File`	`directory()`
`void`	`evictAll()` 删除缓存中存储的所有值。缓存中的写操作将正常完成，但不会存储相应的响应
`void`	`flush()`
`int`	`hitCount()`
`void`	`initialize()` 始化缓存。这将包括从存储器中读取日志文件并构建必要的内存缓存信息注意，如果应用程序选择不调用此方法来初始化缓存。默认情况下，将在第一次使用缓存时执行延迟初始化
`boolean`	`isClosed()`
`static String`	`key(UnoUrl url)`
`long`	`maxSize()`
`int`	`networkCount()`
`int`	`requestCount()`
`long`	`size()`
`Iterator<String>`	`urls()` 在此缓存中的url上返回一个迭代器,该迭代器支持Iterator.remove()。从迭代器中删除URL将从缓存中删除相应的响应。使用此来清除选定的响应
`int`	`writeAbortCount()`
`int`	`writeSuccessCount()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - internalCache
```
public final InternalCache internalCache
```
- Constructor Detail
  - Cache
```
public Cache(File directory,
             long maxSize)
```
    在directory中创建最多maxSize字节的缓存
    
    Parameters:
    
    directory - 目录
    
    maxSize - 缓存的最大大小(以字节为单位)
- Method Detail
  - key
```
public static String key(UnoUrl url)
```
  - initialize
```
public void initialize()
                throws IOException
```
    始化缓存。这将包括从存储器中读取日志文件并构建必要的内存缓存信息注意，如果应用程序选择不调用此方法来初始化缓存。默认情况下，将在第一次使用缓存时执行延迟初始化
    
    Throws:
    
    IOException - 初始化异常
  - delete
```
public void delete()
            throws IOException
```
    关闭缓存并删除其所有存储值。这将删除缓存目录中的所有文件，包括没有由缓存创建的文件
    
    Throws:
    
    IOException - 删除异常
  - evictAll
```
public void evictAll()
              throws IOException
```
    删除缓存中存储的所有值。缓存中的写操作将正常完成，但不会存储相应的响应
    
    Throws:
    
    IOException - 清除异常
  - urls
```
public Iterator<String> urls()
                      throws IOException
```
    在此缓存中的url上返回一个迭代器,该迭代器支持Iterator.remove()。从迭代器中删除URL将从缓存中删除相应的响应。使用此来清除选定的响应
    
    Returns:
    
    迭代器
    
    Throws:
    
    IOException - 异常
  - writeAbortCount
```
public int writeAbortCount()
```
  - writeSuccessCount
```
public int writeSuccessCount()
```
  - size
```
public long size()
          throws IOException
```
    Throws:
    
    IOException
  - maxSize
```
public long maxSize()
```
  - flush
```
public void flush()
           throws IOException
```
    Specified by:
    
    flush in interface Flushable
    
    Throws:
    
    IOException
  - close
```
public void close()
           throws IOException
```
    Specified by:
    
    close in interface Closeable
    
    Specified by:
    
    close in interface AutoCloseable
    
    Throws:
    
    IOException
  - directory
```
public File directory()
```
  - isClosed
```
public boolean isClosed()
```
  - networkCount
```
public int networkCount()
```
  - hitCount
```
public int hitCount()
```
  - requestCount
```
public int requestCount()
```

Class Cache

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

internalCache

Constructor Detail

Cache

Method Detail

key

initialize

delete

evictAll

urls

writeAbortCount

writeSuccessCount

size

maxSize

flush

close

directory

isClosed

networkCount

hitCount

requestCount