AuthenticationCredentialsNotFoundException：在安全上下文中找不到身份验证对象

Question

当我尝试将 JSON 有效负载从 Chrome 浏览器的 POSTMAN 插件发送到公开为 REST URL 的控制器时，出现以下错误 - http://localhost:8080/services/acc/create

SEVERE: Servlet.service() for servlet [dispatcher] in context with path [/services] threw exception [Request processing failed; nested exception is org.springframework.security.authentication.AuthenticationCredentialsNotFoundException: An Authentication object was not found in the SecurityContext] with root cause
org.springframework.security.authentication.AuthenticationCredentialsNotFoundException: An Authentication object was not found in the SecurityContext
    at org.springframework.security.access.intercept.AbstractSecurityInterceptor.credentialsNotFound(AbstractSecurityInterceptor.java:339)
    at org.springframework.security.access.intercept.AbstractSecurityInterceptor.beforeInvocation(AbstractSecurityInterceptor.java:198)
    at org.springframework.security.access.intercept.aopalliance.MethodSecurityInterceptor.invoke(MethodSecurityInterceptor.java:60)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
    at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:655)
    at com.webadvisors.controller.HotelRestController$$EnhancerBySpringCGLIB$$e9f80d9.createHotel(<generated>)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221)
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:114)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:650)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)

我选择 BasicAuth 作为授权类型，并在将 JSON 负载发送到 POSTMAN 中的 REST URL 时输入用户名和密码。

1）控制器类

@RestController
public class AccountRestController {

    @Autowired
    private AccountService accountService;

    @PreAuthorize("hasAnyRole('ADMINISTRATOR')")
    @RequestMapping(value= "/acc/create", method=RequestMethod.POST)
    public HotelDTO createHotel(@RequestBody AccountDTO accDTO) throws Exception{
        return accountService.create(accDTO);
    }
} 

2）安全配置类

@Configuration
@EnableGlobalMethodSecurity(prePostEnabled = true)
@EnableWebSecurity
@ComponentScan(basePackages = "com.freelance", scopedProxy = ScopedProxyMode.INTERFACES)
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    @Qualifier("authenticationService")
    private UserDetailsService userDetailsService;

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

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

    @Override
    protected void configure(HttpSecurity http) throws Exception {
       http
                .authorizeRequests()
                .antMatchers("/user/**").permitAll()
                .anyRequest().fullyAuthenticated();
        http.httpBasic();
        http.csrf().disable();
    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }

    @Bean
    public DaoAuthenticationProvider authenticationProvider() {
        DaoAuthenticationProvider authenticationProvider = new DaoAuthenticationProvider();
        authenticationProvider.setUserDetailsService(userDetailsService);
        authenticationProvider.setPasswordEncoder(passwordEncoder());
        return authenticationProvider;
    }
}

3）Spring 安全依赖

<dependency>
    <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-config</artifactId>
        <version>3.2.3.RELEASE</version>
   </dependency>
   <dependency>
    <groupId>org.springframework.security</groupId>
    <artifactId>spring-security-web</artifactId>
    <version>3.2.3.RELEASE</version>
</dependency>

我正在 POSTMAN 中发送身份验证凭据。但为什么我会遇到上述异常。

Answer 1

您使用

springSecurityFilterChain

创建了

WebSecurityConfigurerAdapter

，请参阅 Spring Security Reference:

第一步是创建 Spring Security Java 配置。该配置创建了一个称为

springSecurityFilterChain

的 Servlet 过滤器，它负责应用程序内的所有安全性（保护应用程序 URL、验证提交的用户名和密码、重定向到登录表单等）。

但你没有使用它（它不在你的堆栈跟踪中）。

您必须注册

springSecurityFilterChain

。如果您有Servlet 3.0+环境，请参阅Spring Security参考：

使用 Spring MVC 的 AbstractSecurityWebApplicationInitializer

如果我们在应用程序的其他地方使用 Spring，我们可能已经有一个

WebApplicationInitializer

正在加载我们的 Spring 配置。如果我们使用以前的配置，我们会得到一个错误。相反，我们应该使用现有的

ApplicationContext

来注册 Spring Security。例如，如果我们使用 Spring MVC，我们的

SecurityWebApplicationInitializer

将如下所示：

import org.springframework.security.web.context.*;

public class SecurityWebApplicationInitializer
  extends AbstractSecurityWebApplicationInitializer {

}

这只会为应用程序中的每个 URL 注册 springSecurityFilterChain 过滤器。之后，我们将确保

WebSecurityConfig

已加载到现有的 ApplicationInitializer 中。例如，如果我们使用 Spring MVC，它将添加到

getRootConfigClasses()

public class MvcWebApplicationInitializer extends
      AbstractAnnotationConfigDispatcherServletInitializer {

  @Override
  protected Class<?>[] getRootConfigClasses() {
      return new Class[] { WebSecurityConfig.class };
  }

  // ... other overrides ...
}