java - 带有 Spring Boot 和 Spring Security 的 Angular2

Question

首先，我已经检查了this page的问题。我尝试了他的解决方案，但最后，我仍然遇到同样的问题。

XMLHttpRequest cannot load http://localhost:8080/login. Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:3000' is therefore not allowed access. The response had HTTP status code 403.

但是，我到处都放了一个access-control，所以我不明白为什么会这样。

我的代码看起来像这样(我希望我能为您提供足够的信息):

在 Angular 中，我的 login.service.ts:

check(name: string, password: string): boolean {
     let headers = new Headers();
    headers.append('Content-Type', 'application/x-www-form-urlencoded');
    headers.append('Access-Control-Allow-Origin','*');
    let options = new RequestOptions({headers:headers,withCredentials:true});

    if(this.http.post(this.baseUrl, 
        `username=${name}&password=${password}`,
        {headers:headers})
        .toPromise().then(response=> {
          return {}
        }))
        return true;    

        return false;
  }

如果身份验证成功，我也想返回一个 boolean 值，但我真的不知道如何知道它是否有效，所以我现在就这样做(而且它总是正确的)。

然后，在 Java 中，我有以下代码:

@Configuration
@EnableWebMvc
class WebConfig extends WebMvcConfigurerAdapter {
}

然后为了安全起见，我得到了这个:

@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {


    @Autowired
    private RESTLoginSuccessHandler loginSuccessHandler;

    @Autowired
    private RestLogoutSuccessHandler logoutSuccessHandler;

    @Override
    protected void configure(HttpSecurity httpSecurity) throws Exception {
        //deactivate CSRF and use custom impl for CORS
        httpSecurity
                .cors.and()
                .csrf().disable()
                .addFilterBefore(new CorsFilter(), ChannelProcessingFilter.class);
        //authorize, authenticate rest
        httpSecurity
                .authorizeRequests()
                    .anyRequest().hasRole("USER")
                    .and()
                .sessionManagement()
                    .sessionCreationPolicy(SessionCreationPolicy.IF_REQUIRED)
                    .and()
                .formLogin()
                    .usernameParameter("username")
                    .passwordParameter("password")
                    .loginPage("/login")
                    .successHandler(loginSuccessHandler)
                    .permitAll()
                    .and()
                .logout()
                    .logoutSuccessHandler(this.logoutSuccessHandler)
                    .permitAll();
    }

    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
        auth.inMemoryAuthentication().withUser("rano").password("1234").roles("USER");
        auth.inMemoryAuthentication().withUser("admin").password("admin").roles("USER", "ADMIN");
    }
}

@Bean
CorsConfigurationSource corsConfigurationSource() {
    CorsConfiguration configuration = new CorsConfiguration();

    configuration.setAllowedOrigins(Arrays.asList("http://localhost:8080","http://localhost:3000"));

    configuration.setAllowedMethods(Arrays.asList("PUT","DELETE","POST"));
    UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
    source.registerCorsConfiguration("/**", configuration);
    return source;
}

在我的 LoginSuccessHandler 中:

@Component
public class RESTLoginSuccessHandler extends SimpleUrlAuthenticationSuccessHandler {

    private RequestCache requestCache = new HttpSessionRequestCache();

    @Override
    public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response,
            org.springframework.security.core.Authentication authentication) throws IOException, ServletException {

        SavedRequest savedRequest = requestCache.getRequest(request, response);

        if (savedRequest == null) {
            clearAuthenticationAttributes(request);
            return;
        }

        String targetUrlParam = getTargetUrlParameter();
        if (isAlwaysUseDefaultTargetUrl()
                || (targetUrlParam != null && StringUtils.hasText(request.getParameter(targetUrlParam)))) {
            requestCache.removeRequest(request, response);
            clearAuthenticationAttributes(request);
            return;
        }

        clearAuthenticationAttributes(request);
    }

    public void setRequestCache(RequestCache requestCache) {
        this.requestCache = requestCache;
    }
}

那么，你知道问题出在哪里吗？或者关于如何使用 Spring Boot 和 Spring Security 制作 Angular2 应用程序？因为除了我添加安全性之外，一切都在 Spring Boot 和 Angular 之间工作。

Answer 1

将以下内容添加到您的配置方法

.cors().and()