Struct CacheHints 

pub struct CacheHints {
    pub max_age: Option<u64>,
    pub stale_while_revalidate: Option<u64>,
    pub etag: Option<String>,
    pub last_modified: Option<String>,
    pub should_cache: bool,
    pub cache_key: Option<String>,
}

缓存提示信息

从 HTTP 响应头或 HTML 中提取的缓存相关元数据。

Fields

max_age: Option<u64>

建议的缓存时间（秒）

stale_while_revalidate: Option<u64>

缓存过期后允许使用过期内容的宽限时间（秒）

etag: Option<String>

ETag 标识

last_modified: Option<String>

最后修改时间

should_cache: bool

是否应缓存此内容

cache_key: Option<String>

缓存键建议

Trait Implementations

impl Clone for CacheHints

fn clone(&self) -> CacheHints

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CacheHints

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for CacheHints

fn default() -> CacheHints

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for CacheHints

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for CacheHints

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.