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Juergen Hoeller
2023-12-27 23:23:38 +01:00
parent 7613bdfdf9
commit a338a16b29
8 changed files with 29 additions and 28 deletions
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framework-docs/modules/ROOT/pages/web/webmvc/filters.adoc
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@@ -78,8 +78,9 @@ it does the same, but it also compares the computed value against the `If-None-M
request header and, if the two are equal, returns a 304 (NOT_MODIFIED).
This strategy saves network bandwidth but not CPU, as the full response must be computed for each request.
State-changing HTTP methods and other HTTP conditional request headers such as `If-Match` and `If-Unmodified-Since` are outside the scope of this filter.
Other strategies at the controller level can avoid the computation and have a broader support for HTTP conditional requests.
State-changing HTTP methods and other HTTP conditional request headers such as `If-Match` and
`If-Unmodified-Since` are outside the scope of this filter. Other strategies at the controller level
can avoid the computation and have a broader support for HTTP conditional requests.
See xref:web/webmvc/mvc-caching.adoc[HTTP Caching].
This filter has a `writeWeakETag` parameter that configures the filter to write weak ETags