V2EX retry-after

Retry-After

释义 Definition

(HTTP 头字段)Retry-After:服务器用来告诉客户端应该在多长时间之后再重试请求,或给出一个具体的重试日期时间。常见于 429 (Too Many Requests)503 (Service Unavailable) 等响应中。

发音 Pronunciation (IPA)

/ritra ftr/

例句 Examples

Check the Retry-After header and wait before trying again.
查看 Retry-After 头字段,等一会儿再重试。

After receiving a 429 response, the client should respect Retry-After to avoid being throttled repeatedly.
收到 429 响应后,客户端应遵循 Retry-After 的指示,以免反复触发限流。

词源 Etymology

retry 来自 *re-*(再、重新)+ try(尝试),合起来表示“再次尝试”;after 表示“在……之后”。组合成 Retry-After 作为技术用语,直观表达“在……之后再重试”,并被规范化为 HTTP 响应头字段名称。

相关词 Related Wods

文献与作品 Literary / Notable Works

  • RFC 9110: HTTP Semantics(定义并规范了 Retry-After 的语义与用法)
  • RFC 7231: Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content(早期语义规范中对 Retry-After 的说明)
  • MDN Web Docs: Retry-After(面向开发者的权威文档与示例说明)
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