Spring Security best practices for authn/authz, validation, CSRF, secrets, headers, rate limiting, and dependency security in Java Spring Boot services.
npx skills add https://github.com/loulanyue/awesome-claude-notes --skill springboot-security
認証の追加、入力処理、エンドポイント作成、またはシークレット処理時に使用します。
httpOnly、Secure、SameSite=Strict クッキーを使用OncePerRequestFilter またはリソースサーバーでトークンを検証@Component
public class JwtAuthFilter extends OncePerRequestFilter {
private final JwtService jwtService;
public JwtAuthFilter(JwtService jwtService) {
this.jwtService = jwtService;
}
@Override
protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response,
FilterChain chain) throws ServletException, IOException {
String header = request.getHeader(HttpHeaders.AUTHORIZATION);
if (header != null && header.startsWith("Bearer ")) {
String token = header.substring(7);
Authentication auth = jwtService.authenticate(token);
SecurityContextHolder.getContext().setAuthentication(auth);
}
chain.doFilter(request, response);
}
}
@EnableMethodSecurity@PreAuthorize("hasRole('ADMIN')") または @PreAuthorize("@authz.canEdit(#id)") を使用@Valid を使用してコントローラーでBean Validationを使用@NotBlank、@Email、@Size、カスタムバリデーター:param バインディングを使用し、文字列を連結しないhttp
.csrf(csrf -> csrf.disable())
.sessionManagement(sm -> sm.sessionCreationPolicy(SessionCreationPolicy.STATELESS));
application.yml を認証情報から解放し、プレースホルダーを使用http
.headers(headers -> headers
.contentSecurityPolicy(csp -> csp
.policyDirectives("default-src 'self'"))
.frameOptions(HeadersConfigurer.FrameOptionsConfig::sameOrigin)
.xssProtection(Customizer.withDefaults())
.referrerPolicy(rp -> rp.policy(ReferrerPolicyHeaderWriter.ReferrerPolicy.NO_REFERRER)));
注意: デフォルトで拒否し、入力を検証し、最小権限を適用し、設定によるセキュリティを優先します。
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Take loulanyue/springboot-security from the repository into ~/.claude/skills for personal
use, or into .claude/skills inside a project.
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