"Autowire" 将 spring 模块化应用程序部署到 tomcat 后失败

Question

我需要一些帮助，因为我自己找不到解决方案而且 google 也没有帮助。我有一个模块化 spring 应用程序，我可以使用 SpringBoot 从命令行运行毫无问题。我使用 gradle war 命令创建了一个 war。我已经在带有 PostgreSQL 数据库和 JRE 8 的服务器上安装了 Tomcat 8。我已将 war 放入 webapps 文件夹，并将我的外部 conf 文件放入 conf 文件夹。我的所有其他模块都存在于 war 文件的 libs 文件夹中。当我运行和 Tomcat 时，出现以下错误：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'securityConfig': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'personDetailsService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private eu.bato.anyoffice.serviceapi.service.PersonService eu.bato.anyoffice.frontend.config.PersonDetailsService.personService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [eu.bato.anyoffice.serviceapi.service.PersonService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

这是我的主要 conf 文件的一部分：

@Configuration
@EnableAutoConfiguration
@ComponentScan(value = {"eu.bato.anyoffice"})
@EnableWebMvc
public class Application extends WebMvcConfigurerAdapter{

    @Autowired
    SchedulerService scheduler;

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }

    @PostConstruct
    protected void startScheduler(){
        scheduler.start();
    }

    @Override
    public void addViewControllers(ViewControllerRegistry registry) {
        registry.addViewController("/login").setViewName("login");
        registry.setOrder(Ordered.HIGHEST_PRECEDENCE);
    }

    @Autowired
    private MessageSource messageSource;

定义 PersonDetailsService bean 的安全配置：

@Configuration
@EnableWebMvcSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    private static final Logger log = LoggerFactory.getLogger(SecurityConfig.class);

    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(personDetailsService()).passwordEncoder(new StandardPasswordEncoder());
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
                .addFilterBefore(authenticationFilter(), LogoutFilter.class)
                .csrf().disable()
                .authorizeRequests()
                ......
                .permitAll();
    }

    @Bean
    PersonDetailsService personDetailsService() {
        return new PersonDetailsService();
    }

    @Bean
    Filter authenticationFilter() {
        BasicAuthenticationFilter basicAuthFilter = new BasicAuthenticationFilter(customAuthenticationManager(), new BasicAuthenticationEntryPoint());
        return basicAuthFilter;
    }

    @Bean
    ProviderManager customAuthenticationManager() {
        List<AuthenticationProvider> providers = new LinkedList<>();
        providers.add(daoAuthPovider());
        ProviderManager authenticationManager = new ProviderManager(providers);
        authenticationManager.setEraseCredentialsAfterAuthentication(true);
        return authenticationManager;
    }

    @Bean
    DaoAuthenticationProvider daoAuthPovider() {
        DaoAuthenticationProvider provider = new DaoAuthenticationProvider();
        provider.setUserDetailsService(personDetailsService());
        provider.setPasswordEncoder(new StandardPasswordEncoder());
        //TODO: add salt
        return provider;
    }

PersonDetailsService 的一部分 class:

public class PersonDetailsService implements UserDetailsService {

    private static final Logger log = LoggerFactory.getLogger(PersonDetailsService.class);

    private static final StandardPasswordEncoder encoder = new StandardPasswordEncoder();

    @Autowired
    private PersonService personService;

    @Autowired
    private Environment environment;

    @PostConstruct
    protected void initialize() {
    }

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        log.info("Authenticating: " + username);

PersonService 接口在包 eu.bato.anyoffice.serviceapi.service 中，它的实现在 eu.bato.anyoffice.backend.service.impl 中，并且有标签 @Service 和 @Transactional

如有任何提示，我将不胜感激。我可以提供任何进一步的日志和信息。

Answer 1

您的配置中的问题是 PersonService 是由 Servlet Context 中声明的 @ComponentScan 加载的。

这样 PersonService 在 Application Context 中无法访问 SecurityConfig。

Servlet Context 中的 beans 可以引用 Application Context 中的 bean，反之则不行！

因此将 @ComponentScan 放入 SecurityConfig 允许该组件可访问。

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