如何在Spring MVC中为错误响应启用CORS？

2023年6月19日 237次阅读

我正在开发应用程序,我使用
Spring MVC作为后端,Angular5作为前端.我一直坚持使用Auth2安全层,包括跨源资源共享.我的CORS过滤器实现如下所示：

@Component
@Order(Ordered.HIGHEST_PRECEDENCE)
@WebFilter("/*")
public class WebSecurityCorsFilter implements Filter {

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
        HttpServletResponse res = (HttpServletResponse) response;
        res.setHeader("Access-Control-Allow-Origin", "*");
        res.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE, PUT");
        res.setHeader("Access-Control-Max-Age", "3600");
        res.setHeader("Access-Control-Allow-Headers", "Authorization, Content-Type, Accept, x-requested-with, Cache-Control");


        if ("OPTIONS".equalsIgnoreCase(((HttpServletRequest) request).getMethod())) {
            res.setStatus(HttpServletResponse.SC_OK);
        } else {
            chain.doFilter(request, res);
        }

    }
    @Override
    public void destroy() {
    }
}

我的工作几乎正常,我能够获取access_token并使用它从ResourcesServer获取受保护的数据：

{“access_token”:”4fcef1f8-4306-4047-9d4d-1c3cf74ecc44″,”token_type”:”bearer”,”refresh_token”:”397016eb-dfb0-4944-a2e0-50c3bd07c250″,”expires_in”:29,”scope”:”read
write trust”}

Browser console screenshot

当我尝试使用过期令牌处理请求时,问题就开始了.在这种情况下,我无法通过Angular捕获正确的ErrorResponeCode.而不是401我Angular HttpClient得到“未知错误”状态：0.

看起来问题在于CORS策略,其中ErrorResponse不包括neccessery头,如Access-Control-Allow-Origin(…)

Failed to load 07001: No
‘Access-Control-Allow-Origin’ header is present on the requested
resource. Origin ‘07002’ is therefore not allowed
access. The response had HTTP status code 401.

ErrorResponse Headers – Screenshot

我已经在Spring MVC中搜索了如何为ErorrResponse(InvalidTokenException等)启用CORS.我尝试了各种方法：accessDeniedHandler和setExceptionTranslator但没有成功.我自己努力找到解决方案,但我是Spring的初学者.我不确定这是否可行.

角(更新)

@hrdkisback,这不是角度问题,无论如何这是我的代码：

@Injectable()

export class HttpInterceptorService implements HttpInterceptor {


    addToken(req: HttpRequest<any>, oauthService: AuthenticationService): HttpRequest<any> {

        if(oauthService.isTokenExist()){

            return req.clone({ setHeaders: { Authorization: 'Bearer ' + oauthService.getAccessToken() }})
        }

        return req;
    }


    intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpSentEvent | HttpHeaderResponse | HttpProgressEvent | HttpResponse<any> | HttpUserEvent<any>> {

        let oauthService = this.inj.get(AuthenticationService);

        return next.handle(this.addToken(req,oauthService))

        .do((event: HttpEvent<any>) => {

            if (event instanceof HttpResponse) {

                // process successful responses here

            }
        }, (error: any) => { 

            if (error instanceof HttpErrorResponse) {

                // Error 

                console.log(error);
            }
        });

    }
}

最佳答案 在我在ResourcesServer配置级别添加我的CORS过滤器后,问题解决了,如下所示：

正确的配置对我有用！

@Configuration
@EnableResourceServer
public class ResourceServerConfig extends ResourceServerConfigurerAdapter {


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

            http
            .addFilterAfter(new WebSecurityCorsFilter(), CsrfFilter.class)
            ...
        }
   ....
}

在我之前的配置中,我以相同的方式添加了过滤器,但是在MVC安全配置的顶层,这是我的问题的根本原因：

导致我的问题的先前配置

@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class SecurityConfig extends WebSecurityConfigurerAdapter {



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

                http
                .addFilterAfter(new WebSecurityCorsFilter(), CsrfFilter.class)
                ...
            }
       ....
    }
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