小编典典

无法通过@Autowired将AuthenticationManager传递到自定义过滤器

spring-boot

我正在尝试通过@Autowired注释将过滤器JWTLoginFilter传递给WebSecurityConfig
WebSecurityConfigurerAdapter。当JWTLoginFilter尝试从WebSecurityConfig获取AuthenticationManager时出现问题。

启动服务器时,出现以下错误:

描述:

应用程序上下文中某些bean的依赖性形成一个循环:

在文件[C:\ Users \ user \ workspace \ backend \ target \ classes \ pl \ dn \
schoolsystem \ service \ jwt \ JWTLoginFilter.class]中定义的JWTLoginFilter

webSecurityConfig(字段pl.dn.schoolsystem.service.jwt.JWTLoginFilter
pl.dn.schoolsystem.config.WebSecurityConfig.jwtLoginFilter)

错误图片

我认为这种循环依赖注入。我对此卡住了,我不知道如何解决。

WebSecurityConfig:

@Configuration
@EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    private Environment env;

    @Autowired
    private UserSecurityService userSecurityService;

    @Autowired
    JWTLoginFilter jwtLoginFilter;

    private static final String Salt = "salt"; // should be protected better

    @Bean
    public BCryptPasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder(12, new SecureRandom(Salt.getBytes()));
    }

    @Bean(name = BeanIds.AUTHENTICATION_MANAGER)
       @Override
       public AuthenticationManager authenticationManagerBean() throws Exception {
           return super.authenticationManagerBean();
       }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.csrf().disable().
        authorizeRequests().antMatchers("/").permitAll()
        .antMatchers(HttpMethod.POST, "/login").permitAll()
        .antMatchers("/admin/**").hasRole("ADMIN")
        .anyRequest().authenticated()

        .and()

        //.addFilterBefore(new JWTLoginFilter("/login", authenticationManager()), 
                //UsernamePasswordAuthenticationFilter.class)
        .addFilterBefore(jwtLoginFilter, 
                UsernamePasswordAuthenticationFilter.class)
        .addFilterBefore(new JWTAuthenticationFilter(), UsernamePasswordAuthenticationFilter.class);        
    }

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(userSecurityService).passwordEncoder(passwordEncoder());
    }

}

JWTLoginFilter:

@Component
public class JWTLoginFilter extends AbstractAuthenticationProcessingFilter{

    @Autowired
    UserService userService;

    @Autowired
    public JWTLoginFilter(@Value("/login") String url, AuthenticationManager authManager) {
        super(new AntPathRequestMatcher(url));
        setAuthenticationManager(authManager);
    }

    @Override
    public Authentication attemptAuthentication(HttpServletRequest req,
            HttpServletResponse res) throws AuthenticationException,
            IOException, ServletException {

        System.out.println("Jestem w JwtLogginFilter.attemptAuthentication -------------------------------------");

        AccountCredentials creds = new ObjectMapper()
            .readValue(req.getInputStream(), AccountCredentials.class);

        User user = userService.findByUsername(creds.getUsername());

        return getAuthenticationManager().authenticate(
                new UsernamePasswordAuthenticationToken(
                        creds.getUsername(),
                        creds.getPassword(),
                        user.getAuthorities()
                        )
        );
    }

    @Override
    protected void successfulAuthentication(HttpServletRequest request,
            HttpServletResponse response, FilterChain chain,
            Authentication authResult) throws IOException, ServletException {

        System.out.println("Jestem w JWTLogginFilter.successfulAuthentication -------------------------------------- ");

        System.out.println("authResult.getName(): " + authResult.getName());
        TokenAuthenticationService.addAuthentication(response, authResult.getName());

    }



}

我正在使用Spring Boot 1.5.4。感谢您的建议


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2020-05-30

共1个答案

小编典典

WebSecurityConfig明确要求JWTLoginFilter将其注入其中,并JWTLoginFilter要求AuthenticationManager将其注入其构造函数中。AuthenticationManager由提供WebSecurityConfig,因此您具有循环依赖关系。

@Component从中删除注释,JWTLoginFilter并将过滤器定义为Bean WebSecurityConfig

@Bean
public JWTLoginFilter jwtLoginFilter() {
    return new JWTLoginFilter("/login", authenticationManager());
}

您可能还需要UserService在此方法中手动注入(例如,通过构造函数)。

2020-05-30