public static ApiLog build(HttpServletRequest request, HttpServletResponse response, HandlerExecutionChain handler, Authentication auth) {
        ApiLog log = new ApiLog();
        log.setHttpStatus(response.getStatus());
        log.setHttpMethod(request.getMethod());
        log.setPath(request.getRequestURI());
        log.setClientIp(request.getRemoteAddr());
        try {
            if (request.getReader() != null) {
                log.setBodyRequest(getRequestPayload(request));
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        if (handler != null) {
            log.setJavaMethod(handler.toString());
        }
        if (request.getHeader("Authorization") != null) {
            log.setToken(request.getHeader("Authorization"));
        } else if (response.getHeader("Authorization") != null) {
            log.setToken(response.getHeader("Authorization"));
        }
        log.setResponse(getResponsePayload(response));
        log.setCreated(Instant.now());
        logger.debug(log.toString());
        return log;
    }

    @NotNull
    private static String getRequestPayload(HttpServletRequest request) {
        ContentCachingRequestWrapper wrapper = WebUtils.getNativeRequest(request, ContentCachingRequestWrapper.class);
        try {
            return wrapper
                    .getReader()
                    .lines()
                    .collect(Collectors.joining(System.lineSeparator()));
        } catch (IOException e) {
            e.printStackTrace();
        }
        return "{}";
    }

    @NotNull
    private static String getResponsePayload(HttpServletResponse responseToCache) {
        ContentCachingResponseWrapper wrapper = WebUtils.getNativeResponse(responseToCache, ContentCachingResponseWrapper.class);
        if (wrapper != null) {
            byte[] buf = wrapper.getContentAsByteArray();
            if (buf.length > 0) {
                int length = Math.min(buf.length, 5120);
                try {
                    return new String(buf, 0, length, wrapper.getCharacterEncoding());
                } catch (UnsupportedEncodingException ex) {
                    logger.error("An error occurred when tried to logging request/response");
                }
            }
        }
        return "{}";
    }

我最大的问题是:我正在使用 Spring Security 生成 JWT token ，因此所有发送到 /v1/auth/login 的请求都会重定向到过滤器。

应用安全

@Configuration
@EnableWebSecurity
public class AppSecurity extends WebSecurityConfigurerAdapter {

    @Autowired
    private CustomUserDetailsService customUserDetailsService;

    @Override
    protected void configure(HttpSecurity httpSecurity) throws Exception {
        httpSecurity.csrf().disable().authorizeRequests()
                .antMatchers(HttpMethod.POST, "/login").permitAll()
                .and()
                .addFilterBefore(new JWTLoginFilter("/login", authenticationManager()),
                        UsernamePasswordAuthenticationFilter.class);
    }

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

}

认证成功后，filter 必须调用 LogDispatcherServlet 来保存请求内容和响应内容。 /login 没有Controller，只有 JWTLoginFilter。

JWTLoginFilter

public class JWTLoginFilter extends AbstractAuthenticationProcessingFilter {

    @Autowired
    JWTLoginFilter(String url, AuthenticationManager authManager) {
        super(new AntPathRequestMatcher(url));
        setAuthenticationManager(authManager);
    }

    @Override
    public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response)
            throws AuthenticationException, IOException, ServletException {

        AccountCredentials credentials = new ObjectMapper()
                .readValue(request.getInputStream(), AccountCredentials.class);

        return getAuthenticationManager().authenticate(
                new UsernamePasswordAuthenticationToken(
                        credentials.getUsername(),
                        Md5.getHash(credentials.getPassword()),
                        Collections.emptyList()
                )
        );
    }

    @Override
    protected void successfulAuthentication(
            HttpServletRequest request,
            HttpServletResponse response,
            FilterChain filterChain,
            Authentication auth) throws IOException, ServletException {

        TokenAuthenticationService.addAuthentication(response, auth.getName());
        //Must call LogDispatcherServlet
        filterChain.doFilter(request, response);
    }

    @Override
    protected void unsuccessfulAuthentication(HttpServletRequest request, HttpServletResponse response, AuthenticationException failed) throws IOException, ServletException {
        super.unsuccessfulAuthentication(request, response, failed);

        //Must call LogDispatcherServlet
    }

}

但它不适用于/login。当 ApiLog 尝试在 getRequestPayload 中获取请求正文时，我得到一个 java.io.IOException: Stream closed

我该怎么做才能避免这种情况？ JWTLoginFilter 需要知道用于身份验证的请求正文和 LogDispatcherServlet，但 request.getInputStream() 在 attemptAuthentication 中调用。还有其他更简单的解决方案吗？