Update content length after rebuilding form body - #4262
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Fixes spring-cloudgh-3972 Signed-off-by: 胡铁芳 <137664623+hutiefang76@users.noreply.github.com>
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Fixes gh-3972
When
FormFilterrebuilds a form body from request parameters, URL encoding can change the byte length. The wrapped request currently continues to expose the original content length, so downstream code may truncate the rebuilt body.This change:
getContentLength()andgetContentLengthLong();Content-Lengthheader through the string, enumeration, and integer accessors;Tests cover the
!to%21length increase and the missing-header case.Verification:
./mvnw -pl spring-cloud-gateway-server-webmvc -Dtest=FormFilterTests test./mvnw -pl spring-cloud-gateway-server-webmvc test(215 tests, 0 failures/errors, 2 skipped)