CacheControl (bus-http 8.1.0 API)

java.lang.Object

org.miaixz.bus.http.cache.CacheControl

public class CacheControl extends Object

缓存控制头，带有来自服务器或客户端的缓存指令。这些指令设置了哪些响应可以存储，以及哪些请求可以由存储的响应来满足的策略

Since:: Java 17+
Author:: Kimi Liu

Nested Class Summary

Nested Classes

Modifier and Type

Class

Description

static class

CacheControl.Builder

构建一个Cache-Control请求头
Field Summary

Fields

Modifier and Type

Field

Description

static final CacheControl

FORCE_CACHE

仅使用缓存的缓存控制请求指令，即使缓存的响应已过期。

static final CacheControl

FORCE_NETWORK

需要对响应进行网络验证的缓存控制请求指令。
Method Summary

Modifier and Type

Method

Description

boolean

immutable()

boolean

isPrivate()

boolean

isPublic()

int

maxAgeSeconds()

int

maxStaleSeconds()

int

minFreshSeconds()

boolean

mustRevalidate()

boolean

noCache()

boolean

noStore()

boolean

noTransform()

boolean

onlyIfCached()

static CacheControl

parse(Headers headers)

返回headers的缓存指令。

int

sMaxAgeSeconds()

String

toString()

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

Field Details
- FORCE_NETWORK
  
  public static final CacheControl FORCE_NETWORK
  
  需要对响应进行网络验证的缓存控制请求指令。请注意，缓存可以通过有条件的GET请求来辅助这些请求.
- FORCE_CACHE
  
  public static final CacheControl FORCE_CACHE
  
  仅使用缓存的缓存控制请求指令，即使缓存的响应已过期。如果响应在缓存中不可用，或者需要服务器验证，调用将失败
Method Details
- parse
  
  public static CacheControl parse(Headers headers)
  
  返回headers的缓存指令。如果存在Cache-Control和Pragma头文件，则会同时显示它们
  
  Parameters:
  
  headers - headers
  
  Returns:
  
  缓存控制头
- noCache
  
  public boolean noCache()
- noStore
  
  public boolean noStore()
- maxAgeSeconds
  
  public int maxAgeSeconds()
- sMaxAgeSeconds
  
  public int sMaxAgeSeconds()
- isPrivate
  
  public boolean isPrivate()
- isPublic
  
  public boolean isPublic()
- mustRevalidate
  
  public boolean mustRevalidate()
- maxStaleSeconds
  
  public int maxStaleSeconds()
- minFreshSeconds
  
  public int minFreshSeconds()
- onlyIfCached
  
  public boolean onlyIfCached()
- noTransform
  
  public boolean noTransform()
- immutable
  
  public boolean immutable()
- toString
  
  public String toString()
  
  Overrides:
  
  toString in class Object