Spring Boot 3.1中整合Spring Security和Keycloak的方法

curl --location 'http://localhost:9090/realms/MyAppRealm/protocol/openid-connect/token' \
--header 'Content-Type: application/x-www-form-urlencoded' \
--data-urlencode 'username=<YOUR_USER_NAME>' \
--data-urlencode 'password=<YOUR_USER_PASSWORD>' \
--data-urlencode 'grant_type=password' \
--data-urlencode 'client_id=My-Awesome-App' \
--data-urlencode 'client_secret=<KEYCLOAK_CLIENT_SECRET>' \
--data-urlencode 'scope=openid'

<dependency>
   <groupId>org.springframework.security</groupId>
   <artifactId>spring-security-oauth2-jose</artifactId>
</dependency>

spring:
  security:
    oauth2:
      resourceserver:
        jwt:
          issuer-uri: http://localhost:9090/realms/MyAppRealm
          jwk-set-uri: http://localhost:9090/realms/MyAppRealm/protocol/openid-connect/certs

@RequestMapping("/test")
@RestController
public class MySuperSecuredController {
    @GetMapping("/hello")
    public String hello(){
        return "hello";
    }
}

@Configuration
@EnableWebSecurity
public class WebSecurityConfig {
    @Bean
    public SecurityFilterChain securityFilterChain(HttpSecurity httpSecurity) throws Exception {
        httpSecurity
                .authorizeHttpRequests(registry -> registry
                        .requestMatchers("/test/**").hasRole("SYS_ADMIN")
                        .anyRequest().authenticated()
                )
                .oauth2ResourceServer(oauth2Configurer -> oauth2Configurer.jwt(jwtConfigurer -> jwtConfigurer.jwtAuthenticationConverter(jwt -> {
                    Map<String, Collection<String>> realmAccess = jwt.getClaim("realm_access");
                    Collection<String> roles = realmAccess.get("roles");
                    var grantedAuthorities = roles.stream()
                            .map(role -> new SimpleGrantedAuthority("ROLE_" + role))
                            .toList();
                    return new JwtAuthenticationToken(jwt, grantedAuthorities);
                })))
        ;
        return httpSecurity.build();
    }
}