java - Autowiring 时无法通过Spring Security:BeanCreationException实现CustomAuthenticationProvider

我在Spring Security中实现CustomAuthenticationProvider。我创建了实现AuthenticationProvider的CustomAuthenticationProvider类。但是，当我在SecurityConfiguration类中定义此CustomAuthenticationProvider并将其自动装配时，应用程序将引发以下错误：

2020-03-08 19:27:42 [main] ERROR o.s.web.context.ContextLoader - Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'securityConfiguration': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.highrise.isimwebapp.config.customauth.CustomAuthenticationProvider com.highrise.isimwebapp.config.SecurityConfiguration.authProvider; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.highrise.isimwebapp.config.customauth.CustomAuthenticationProvider] 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)}

我在CustomAuthenticationProvider类中包含了@Component批注。此外，@ ComponentScan中还包含定义此类的程序包。上下文没有拾取CustomAuthenticationProvider bean。其他定义的类已成功被@ComponentScan中定义的上下文拾取，并且在其自动装配对象上未收到此类错误。我这边可能出什么毛病了？任何有关如何解决此问题的帮助将不胜感激。

CustomAuthenticationProvider.java

@Component
public class CustomAuthenticationProvider implements AuthenticationProvider {

@Override
public Authentication authenticate(Authentication authentication) throws AuthenticationException {
    // TODO Auto-generated method stub
    String name = authentication.getName();
    String password = authentication.getCredentials().toString();
    if(name.equalsIgnoreCase("testuser1") && password.equalsIgnoreCase("demo"))
        return new UsernamePasswordAuthenticationToken(name, password);
    else
        throw new BadCredentialsException("Authentication failed");
}

@Override
public boolean supports(Class<?> authentication) {
    // TODO Auto-generated method stub
    return authentication.equals(UsernamePasswordAuthenticationToken.class);
}

}

SecurityConfiguration.java

@Configuration
@EnableWebSecurity
public class SecurityConfiguration extends WebSecurityConfigurerAdapter {

@Autowired
private CustomAuthenticationProvider authProvider;

@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
    auth.authenticationProvider(authProvider);
}

@Override
protected void configure(HttpSecurity http) throws Exception {

  http.authorizeRequests()
    .antMatchers("/resources/**").permitAll()
    .antMatchers("/icon/**").permitAll()
    .anyRequest().authenticated()
    .and().formLogin().loginPage("/login").usernameParameter("username").passwordParameter("password").permitAll().defaultSuccessUrl("/persons/listall")
    .and().csrf().disable();

}
}

SpringWebConfig.java

@EnableWebMvc
@Configuration
@ComponentScan({ "com.highrise.isimwebapp.config", "com.highrise.isimwebapp.config.customauth", "com.highrise.isimwebapp.config.servlet3", "com.highrise.isimwebapp.web", "com.highrise.isimwebapp.service", "com.highrise.isimwebapp.dao",
    "com.highrise.isimwebapp.exception", "com.highrise.isimwebapp.validator" })
public class SpringWebConfig extends WebMvcConfigurerAdapter {

@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
    registry.addResourceHandler("/resources/**").addResourceLocations("/resources/");
}

@Bean
public InternalResourceViewResolver viewResolver() {
    InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
    viewResolver.setViewClass(JstlView.class);
    viewResolver.setPrefix("/WEB-INF/views/jsp/");
    viewResolver.setSuffix(".jsp");
    return viewResolver;
}

@Bean
public ResourceBundleMessageSource messageSource() {
    ResourceBundleMessageSource rb = new ResourceBundleMessageSource();
    rb.setBasenames(new String[] { "messages/messages", "messages/validation" });
    return rb;
}

}

最佳答案

问题可能出在软件包扫描的顺序上，我可以建议您两种方法：


将@ComponentScan("com.highrise.isimwebapp.config.customauth")移到SecurityConfiguration类。
从@Component类中删除CustomAuthenticationProvider批注，并在@Bean中声明SecurityConfiguration，如下所示：

@Configuration
@EnableWebSecurity
public class SecurityConfiguration extends WebSecurityConfigurerAdapter {

  @Override
  protected void configure(AuthenticationManagerBuilder auth) throws Exception {
    auth.authenticationProvider(customAuthProvider());
  }

  @Override
  protected void configure(HttpSecurity http) throws Exception {

    http.authorizeRequests()
      .antMatchers("/resources/**").permitAll()
      .antMatchers("/icon/**").permitAll()
      .anyRequest().authenticated()
 .and().formLogin().loginPage("/login").usernameParameter("username").passwordParameter("password").permitAll().defaultSuccessUrl("/persons/listall")
    .and().csrf().disable();

  }

  @Bean
  public CustomAuthenticationProvider customAuthProvider() {
    return new CustomAuthenticationProvider();
  }
}

关于java - Autowiring 时无法通过Spring Security:BeanCreationException实现CustomAuthenticationProvider，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/60589062/