我希望每次通过假装客户端发出请求时，都为我的经过身份验证的用户设置一个特定的 header 。

这是我的过滤器，我从中获取身份验证并将其设置为 spring 安全上下文:

@EnableEurekaClient
@SpringBootApplication
@EnableFeignClients
public class PerformanceApplication {
    @Bean
    public Filter requestDetailsFilter() {
        return new RequestDetailsFilter();
    }

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

    private class RequestDetailsFilter implements Filter {
        @Override
        public void init(FilterConfig filterConfig) throws ServletException {

        }

        @Override
        public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
            String userName = ((HttpServletRequest)servletRequest).getHeader("Z-User-Details");
            String pass = ((HttpServletRequest)servletRequest).getHeader("X-User-Details");
            if (pass != null)
                pass = decrypt(pass);
            SecurityContext secure = new SecurityContextImpl();
            org.springframework.security.core.Authentication token = new UsernamePasswordAuthenticationToken(userName, pass);
            secure. setAuthentication(token);
            SecurityContextHolder.setContext(secure);
            filterChain.doFilter(servletRequest, servletResponse);
        }

        @Override
        public void destroy() {

        }
    }
    private String decrypt(String str) {
        try {
            Cipher dcipher = new NullCipher();

            // Decode base64 to get bytes
            byte[] dec = new sun.misc.BASE64Decoder().decodeBuffer(str);

            // Decrypt
            byte[] utf8 = dcipher.doFinal(dec);

            // Decode using utf-8
            return new String(utf8, "UTF8");
        } catch (javax.crypto.BadPaddingException e) {
        } catch (IllegalBlockSizeException e) {
        } catch (UnsupportedEncodingException e) {
        } catch (java.io.IOException e) {
        }
        return null;
    }
}

这是我的假客户:

@FeignClient("holiday-client")
public interface EmailClient {
    @RequestMapping(value = "/api/email/send", method = RequestMethod.POST)
    void sendEmail(@RequestBody Email email);
}

这里我有一个请求拦截器:

@Component
public class FeignRequestInterceptor implements RequestInterceptor {
    private String headerValue;

    public FeignRequestInterceptor() {
    }

    public FeignRequestInterceptor(String username, String password) {
        this(username, password, ISO_8859_1);
    }

    public FeignRequestInterceptor(String username, String password, Charset charset) {
        checkNotNull(username, "username");
        checkNotNull(password, "password");
        this.headerValue = "Basic " + base64encode((username + ":" + password).getBytes(charset));
    }

    private static String base64encode(byte[] bytes) {
        BASE64Encoder encoder = new BASE64Encoder();
        return encoder.encode(bytes);
    }

    @Override
    public void apply(RequestTemplate requestTemplate) {
        requestTemplate.header("Authorization", headerValue);
    }
}

我不知道如何为我的客户端配置这个拦截器以及如何使用用户名和密码设置 header 。我怎样才能做到这一点？

最佳答案

你真的不需要自己实现 FeignRequestInterceptor 因为已经有 BasicAuthRequestInterceptor在 feign.auth 包中，功能完全相同。

话虽如此，您基本上已经设置了几乎所有内容。剩下要做的就是用特定的用户名和密码定义 basicAuthRequestInterceptor bean:

@Bean
public RequestInterceptor basicAuthRequestInterceptor() {
    return new BasicAuthRequestInterceptor("username", "password");
}

关于java - 如何向假客户端添加请求拦截器？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/40262132/