Spring Boot Oauth2资源服务器UserDetailsService

Question

试图让UserDetailsService为我设置的oauth2资源服务器工作。我能够成功地对jwt进行身份验证，但是我所做的一切似乎都无法让它调用loadUserByUsername方法。它最初使用的是SAML，并且可以工作，但现在我切换到了Oauth2，我无法让它工作。

     @Service
     public class OauthUsersDetailsServiceImpl implements UserDetailsService{
         @Override
         public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
             //some user loading junk here - this is never called
         }
     }

     @Configuration
        @EnableGlobalMethodSecurity(prePostEnabled = true)
        @EnableWebSecurity
         public class SecurityConfig extends WebSecurityConfigurerAdapter {
            
            @Override
            protected void configure(HttpSecurity http) throws Exception
            {
                //test key for now
                SecretKeySpec key = new SecretKeySpec("private key0000000000000000000000000000000".getBytes(), "HMACSHA256");
                

                http
                    .authorizeRequests()
                    .antMatchers(/*some endpoints im excluding from auth - this all works*/)
                    .permitAll().and()
                    .authorizeRequests()
                    .anyRequest().authenticated().and()
                    .oauth2ResourceServer().jwt().decoder(NimbusJwtDecoder.withSecretKey(key).build());
            }
         }

我在google上发现，我只需要用@service将类注册为bean，spring就会把它捡起来，但它不起作用。我还尝试通过AuthenticationManagerBuilder添加它，但这也不起作用。我的猜测是jwt端有它自己的UserDetailsService，它实现了它，并且优先于我的。也就是说，让我的用户调用的正确方法是什么，还是在身份验证完成后手动调用我的用户加载逻辑并覆盖主体对象更好？我需要在调用endpoint之前执行此操作，以便PreAuthorize可以检查UserDetailsService加载的角色。

Answer 1

想通了。希望这能帮助任何遇到同样问题的人。我不得不向链中添加一个自定义过滤器来调用我的用户详细信息服务并覆盖上下文：

public class Oauth2AuthorizationFilter extends GenericFilterBean {

        @Autowired
        private OauthUsersDetailsServiceImpl oauthUsersDetailsServiceImpl;
      
      public Oauth2AuthorizationFilter (OauthUsersDetailsServiceImpl userDetailsService) {
        this.oauthUsersDetailsServiceImpl = userDetailsService;
      }
      
      
      @Override
      public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
          throws IOException, ServletException {

        SecurityContext context = SecurityContextHolder.getContext();
        if(context.getAuthentication() != null && !(context.getAuthentication().getPrincipal() instanceof Users)) {
          
          UserDetails user = oauthUsersDetailsServiceImpl.loadUserByUsername(((Jwt)context.getAuthentication().getPrincipal()).getClaimAsString("user_name")); 
          UsernamePasswordAuthenticationToken authentication = new UsernamePasswordAuthenticationToken(user, null, user.getAuthorities());
          context.setAuthentication(authentication);
        }
        
        chain.doFilter(request, response);
      }

    }

@Override
        protected void configure(HttpSecurity http) throws Exception
        {
            //test key for now
            SecretKeySpec key = new SecretKeySpec("private key0000000000000000000000000000000".getBytes(), "HMACSHA256");
            
            http.authorizeRequests().antMatchers(/*bunch of junk...*/).permitAll().and().authorizeRequests().anyRequest().authenticated().and()
                .oauth2ResourceServer().jwt().decoder(NimbusJwtDecoder.withSecretKey(key).build());
            
            http.addFilterAfter(jwtAuthTokenFilterBean(), SwitchUserFilter.class);

        }

这终于满足了我的需要