为何Logbook未记录外部请求？附测试代码与日志

我遇到Logbook无法记录外部请求的问题，以下是单元测试代码及运行产生的日志，恳请协助排查原因：

单元测试代码 #

@Test
public void logRequestBodyTest() {

    Logbook logbook = Logbook.builder()
            .sink(new DefaultSink(
                    new DefaultHttpLogFormatter(),
                    new DefaultHttpLogWriter()
            ))
            .build();

    final LogbookClientFilter filter = new LogbookClientFilter(logbook);
    final LogbookHttpRequestInterceptor interceptor = new LogbookHttpRequestInterceptor(logbook);
    final ResteasyClient client = new ResteasyClientBuilder().register(filter).build();

    final Response response = client.target("http://localhost:15555/test/management").request().get();

}

运行日志 #

[15:51:13,553] [DEBUG] [main][,,][RequestAddCookies.process(123)] CookieSpec selected: default
[15:51:13,560] [DEBUG] [main][,,][RequestAuthCache.process(77)] Auth cache not set in the context
[15:51:13,560] [DEBUG] [main][,,][PoolingHttpClientConnectionManager.requestConnection(265)] Connection request: [route: {}->http://localhost:15555][total kept alive: 0; route allocated: 0 of 50; total allocated: 0 of 50]
[15:51:13,577] [DEBUG] [main][,,][PoolingHttpClientConnectionManager.leaseConnection(309)] Connection leased: [id: 0][route: {}->http://localhost:15555][total kept alive: 0; route allocated: 1 of 50; total allocated: 1 of 50]
[15:51:13,577] [DEBUG] [main][,,][MainClientExec.execute(235)] Opening connection {}->http://localhost:15555
[15:51:13,596] [DEBUG] [main][,,][DefaultHttpClientConnectionOperator.connect(139)] Connecting to localhost/127.0.0.1:15555
[15:51:13,597] [DEBUG] [main][,,][DefaultHttpClientConnectionOperator.connect(146)] Connection established 127.0.0.1:53944<->127.0.0.1:15555
[15:51:13,597] [DEBUG] [main][,,][MainClientExec.execute(256)] Executing request GET /test/management HTTP/1.1
[15:51:13,597] [DEBUG] [main][,,][MainClientExec.execute(261)] Target auth state: UNCHALLENGED
[15:51:13,597] [DEBUG] [main][,,][MainClientExec.execute(267)] Proxy auth state: UNCHALLENGED
[15:51:13,597] [DEBUG] [main][,,][headers.onRequestSubmitted(133)] http-outgoing-0 >> GET /test/management HTTP/1.1
[15:51:13,597] [DEBUG] [main][,,][headers.onRequestSubmitted(136)] http-outgoing-0 >> Host: localhost:15555
[15:51:13,597] [DEBUG] [main][,,][headers.onRequestSubmitted(136)] http-outgoing-0 >> Connection: Keep-Alive
[15:51:13,597] [DEBUG] [main][,,][headers.onRequestSubmitted(136)] http-outgoing-0 >> User-Agent: Apache-HttpClient/4.5.4 (Java/11.0.2)
[15:51:13,630] [DEBUG] [main][,,][headers.onResponseReceived(122)] http-outgoing-0 << HTTP/1.0 400 Bad Request
[15:51:13,664] [DEBUG] [Finalizer][,,][DefaultManagedHttpClientConnection.close(79)] http-outgoing-0: Close connection

排查与解决建议 #

• 日志级别未配置：当前日志仅输出Apache HttpClient的DEBUG信息，没有Logbook的日志。需在日志框架（如Logback/Log4j）中添加Logbook的DEBUG级别配置，比如：

  <!-- Logback配置示例 -->
  <logger name="org.zalando.logbook" level="DEBUG"/>
  

• 过滤器注册问题：你创建了LogbookHttpRequestInterceptor但未使用，且LogbookClientFilter作为JAX-RS过滤器，需确保被Resteasy正确加载。可尝试指定过滤器优先级，确保其优先执行：

  final ResteasyClient client = new ResteasyClientBuilder()
          .register(filter, Priorities.HEADER_DECORATOR)
          .build();
  

• 切换到Apache HttpClient拦截器方案：如果JAX-RS过滤器方案不生效，可直接操作Resteasy底层的HttpClient，注册Logbook的Apache拦截器：

  HttpClient httpClient = HttpClientBuilder.create()
          .addInterceptorFirst(new LogbookHttpRequestInterceptor(logbook))
          .addInterceptorFirst(new LogbookHttpResponseInterceptor(logbook))
          .build();
  
  final ResteasyClient client = new ResteasyClientBuilder()
          .httpEngine(new ApacheHttpClient4Engine(httpClient))
          .build();
  

内容的提问来源于stack exchange，提问作者damianoo