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Spring Security 7.1 JWT authentication on Spring Boot 4.1

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Runnable companion for https://ankurm.com/spring-security-7-1-jwt-authentication-guide/

- login -> token issue -> OncePerRequestFilter -> SecurityContext, end to end
- HS256 and RS256 variants (RS256 publishes a real JWKS endpoint)
- the same API secured by the built-in oauth2ResourceServer().jwt(), for comparison
- 11 documentation chapters under docs/, interlinked with the code
- docs/output/ is real captured output, regenerated by scripts/run-all.sh
- 13 passing tests pinning the 401-vs-403 contract and the CSRF failure

Verified against Spring Boot 4.1.1, Spring Security 7.1.1, JDK 25.0.4.1.
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asmhatre
2026-08-22 06:22:25 +00:00
commit adf996da44
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src/main/resources/application-trace.yaml Normal file
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# Run with --spring.profiles.active=hs256,trace to see every filter decision.
logging:
level:
org.springframework.security: TRACE
org.springframework.security.web.FilterChainProxy: TRACE