如何在Spring Boot中创建AuthenticationManager的实例？

Question

问题

我设法通过Postman获得了身份验证/授权。目前，我正在尝试通过对/ api / authenticate发出发布请求来拨打电话以进行登录。

但是，如果我正在打印AuthenticationManager的实例，则表明该值为空。

我尝试过什么/正在使用什么代码

SecurityConfig类。

@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(securedEnabled = true)
class SecurityConfig : WebSecurityConfigurerAdapter() {

    @Throws(Exception::class)
    override fun configure(http: HttpSecurity) {
        http.cors().and().csrf().disable()
                .authorizeRequests()
                .antMatchers("/api/authentication/**").permitAll()
                .anyRequest().authenticated()
                .and()
                .addFilter(JwtAuthenticationFilter(authenticationManager()))
                .addFilter(JwtAuthorizationFilter(authenticationManager()))
                .sessionManagement()
                .sessionCreationPolicy(SessionCreationPolicy.STATELESS)
    }

    @Throws(Exception::class)
    public override fun configure(auth: AuthenticationManagerBuilder) {
        auth.inMemoryAuthentication()
                .withUser("user")
                .password(passwordEncoder().encode("password"))
                .authorities("ROLE_USER")
    }

    @Bean
    fun passwordEncoder() = BCryptPasswordEncoder()

    @Bean
    fun corsConfigurationSource(): CorsConfigurationSource {
        val source = UrlBasedCorsConfigurationSource()
        source.registerCorsConfiguration("/**", CorsConfiguration().applyPermitDefaultValues())
        return source
    }

    @Bean(name = [BeanIds.AUTHENTICATION_MANAGER])
    @Throws(Exception::class)
    override fun authenticationManagerBean(): AuthenticationManager {
        return super.authenticationManagerBean()
    }
}

我尝试登录的控制器类。

@RestController
@RequestMapping("/api/authentication")
class AuthenticationController() {

    @PostMapping
    fun logIn(): Authentication? {
        val authenticationHelper = AuthenticationHelper();
        return authenticationHelper.logIn("user", "password");
    }
}

Helper类。

class AuthenticationHelper {
    @Autowired
    @Qualifier("authenticationManager")
    var authenticationManager: AuthenticationManager? = null

    fun logIn(username: String, password: String): Authentication? {
        println(authenticationManager) // Gives me null
        val authenticationToken = UsernamePasswordAuthenticationToken(username, password);
        return authenticationManager?.authenticate(authenticationToken);
    }
}