我使用Spring RestTemplate已经有一段时间了，当我尝试调试它的请求和响应时，我总是碰壁。我基本上希望看到的东西与打开“ verbose”选项时使用curl时看到的东西相同。例如 ：

curl -v http://twitter.com/statuses/public_timeline.rss

将同时显示已发送的数据和已接收的数据（包括标题，cookie等）。

我已经检查了一些相关的帖子，例如： 如何在Spring RestTemplate中记录响应？ 但是我还没有解决这个问题。

一种方法是实际更改RestTemplate源代码并在其中添加一些额外的日志记录语句，但是我发现这种方法确实是不得已的事情。应该有某种方式告诉Spring Web Client / RestTemplate以更友好的方式记录所有内容。

我的目标是能够使用以下代码执行此操作：

restTemplate.put("http://someurl", objectToPut, urlPathValues);

然后在日志文件或控制台中获取相同类型的调试信息（与curl相同）。我相信这对于使用Spring RestTemplate并有问题的任何人都将非常有用。使用curl调试RestTemplate问题根本无法正常工作（在某些情况下）。

只是为了完成示例ClientHttpRequestInterceptor以跟踪请求和响应的完整实现：

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.http.HttpRequest;
import org.springframework.http.client.ClientHttpRequestExecution;
import org.springframework.http.client.ClientHttpRequestInterceptor;
import org.springframework.http.client.ClientHttpResponse;

public class LoggingRequestInterceptor implements ClientHttpRequestInterceptor {

    final static Logger log = LoggerFactory.getLogger(LoggingRequestInterceptor.class);

    @Override
    public ClientHttpResponse intercept(HttpRequest request, byte[] body, ClientHttpRequestExecution execution) throws IOException {
        traceRequest(request, body);
        ClientHttpResponse response = execution.execute(request, body);
        traceResponse(response);
        return response;
    }

    private void traceRequest(HttpRequest request, byte[] body) throws IOException {
        log.info("===========================request begin================================================");
        log.debug("URI         : {}", request.getURI());
        log.debug("Method      : {}", request.getMethod());
        log.debug("Headers     : {}", request.getHeaders() );
        log.debug("Request body: {}", new String(body, "UTF-8"));
        log.info("==========================request end================================================");
    }

    private void traceResponse(ClientHttpResponse response) throws IOException {
        StringBuilder inputStringBuilder = new StringBuilder();
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(response.getBody(), "UTF-8"));
        String line = bufferedReader.readLine();
        while (line != null) {
            inputStringBuilder.append(line);
            inputStringBuilder.append('\n');
            line = bufferedReader.readLine();
        }
        log.info("============================response begin==========================================");
        log.debug("Status code  : {}", response.getStatusCode());
        log.debug("Status text  : {}", response.getStatusText());
        log.debug("Headers      : {}", response.getHeaders());
        log.debug("Response body: {}", inputStringBuilder.toString());
        log.info("=======================response end=================================================");
    }

}

然后RestTemplate使用BufferingClientHttpRequestFactory和实例化LoggingRequestInterceptor：

RestTemplate restTemplate = new RestTemplate(new BufferingClientHttpRequestFactory(new SimpleClientHttpRequestFactory()));
List<ClientHttpRequestInterceptor> interceptors = new ArrayList<>();
interceptors.add(new LoggingRequestInterceptor());
restTemplate.setInterceptors(interceptors);

BufferingClientHttpRequestFactory因为我们要在拦截器和初始调用代码中都使用响应主体，所以这是必需的。默认实现只允许读取一次响应主体。

在Spring Boot中，您可以通过在属性（或其他12因子方法）中进行设置来获取完整的请求/响应

logging.level.org.apache.http=DEBUG

这个输出

-DEBUG .i.c.DefaultHttpClientConnectionOperator : Connecting to localhost/127.0.0.1:41827
-DEBUG .i.c.DefaultHttpClientConnectionOperator : Connection established 127.0.0.1:39546<->127.0.0.1:41827
-DEBUG o.a.http.impl.execchain.MainClientExec   : Executing request POST /v0/users HTTP/1.1
-DEBUG o.a.http.impl.execchain.MainClientExec   : Target auth state: UNCHALLENGED
-DEBUG o.a.http.impl.execchain.MainClientExec   : Proxy auth state: UNCHALLENGED
-DEBUG org.apache.http.headers                  : http-outgoing-0 >> POST /v0/users HTTP/1.1
-DEBUG org.apache.http.headers                  : http-outgoing-0 >> Content-Type: application/json;charset=UTF-8
-DEBUG org.apache.http.headers                  : http-outgoing-0 >> Content-Length: 56
-DEBUG org.apache.http.headers                  : http-outgoing-0 >> Host: localhost:41827
-DEBUG org.apache.http.headers                  : http-outgoing-0 >> Connection: Keep-Alive
-DEBUG org.apache.http.headers                  : http-outgoing-0 >> User-Agent: Apache-HttpClient/4.5.2 (Java/1.8.0_102)
-DEBUG org.apache.http.headers                  : http-outgoing-0 >> Accept-Encoding: gzip,deflate
-DEBUG org.apache.http.wire                     : http-outgoing-0 >> "POST /v0/users HTTP/1.1[\r][\n]"
-DEBUG org.apache.http.wire                     : http-outgoing-0 >> "Content-Type: application/json;charset=UTF-8[\r][\n]"
-DEBUG org.apache.http.wire                     : http-outgoing-0 >> "Content-Length: 56[\r][\n]"
-DEBUG org.apache.http.wire                     : http-outgoing-0 >> "Host: localhost:41827[\r][\n]"
-DEBUG org.apache.http.wire                     : http-outgoing-0 >> "Connection: Keep-Alive[\r][\n]"
-DEBUG org.apache.http.wire                     : http-outgoing-0 >> "User-Agent: Apache-HttpClient/4.5.2 (Java/1.8.0_102)[\r][\n]"
-DEBUG org.apache.http.wire                     : http-outgoing-0 >> "Accept-Encoding: gzip,deflate[\r][\n]"
-DEBUG org.apache.http.wire                     : http-outgoing-0 >> "[\r][\n]"
-DEBUG org.apache.http.wire                     : http-outgoing-0 >> "{"id":null,"email":"xenoterracide@gmail.com","new":true}"

和回应

-DEBUG .i.c.DefaultHttpClientConnectionOperator : Connecting to localhost/127.0.0.1:41827
-DEBUG .i.c.DefaultHttpClientConnectionOperator : Connection established 127.0.0.1:39546<->127.0.0.1:41827
-DEBUG o.a.http.impl.execchain.MainClientExec   : Executing request POST /v0/users HTTP/1.1
-DEBUG o.a.http.impl.execchain.MainClientExec   : Target auth state: UNCHALLENGED
-DEBUG o.a.http.impl.execchain.MainClientExec   : Proxy auth state: UNCHALLENGED
-DEBUG org.apache.http.headers                  : http-outgoing-0 >> POST /v0/users HTTP/1.1
-DEBUG org.apache.http.headers                  : http-outgoing-0 >> Content-Type: application/json;charset=UTF-8
-DEBUG org.apache.http.headers                  : http-outgoing-0 >> Content-Length: 56
-DEBUG org.apache.http.headers                  : http-outgoing-0 >> Host: localhost:41827
-DEBUG org.apache.http.headers                  : http-outgoing-0 >> Connection: Keep-Alive
-DEBUG org.apache.http.headers                  : http-outgoing-0 >> User-Agent: Apache-HttpClient/4.5.2 (Java/1.8.0_102)
-DEBUG org.apache.http.headers                  : http-outgoing-0 >> Accept-Encoding: gzip,deflate
-DEBUG org.apache.http.wire                     : http-outgoing-0 >> "POST /v0/users HTTP/1.1[\r][\n]"
-DEBUG org.apache.http.wire                     : http-outgoing-0 >> "Content-Type: application/json;charset=UTF-8[\r][\n]"
-DEBUG org.apache.http.wire                     : http-outgoing-0 >> "Content-Length: 56[\r][\n]"
-DEBUG org.apache.http.wire                     : http-outgoing-0 >> "Host: localhost:41827[\r][\n]"
-DEBUG org.apache.http.wire                     : http-outgoing-0 >> "Connection: Keep-Alive[\r][\n]"
-DEBUG org.apache.http.wire                     : http-outgoing-0 >> "User-Agent: Apache-HttpClient/4.5.2 (Java/1.8.0_102)[\r][\n]"
-DEBUG org.apache.http.wire                     : http-outgoing-0 >> "Accept-Encoding: gzip,deflate[\r][\n]"
-DEBUG org.apache.http.wire                     : http-outgoing-0 >> "[\r][\n]"
-DEBUG org.apache.http.wire                     : http-outgoing-0 >> "{"id":null,"email":"xenoterracide@gmail.com","new":true}"

或者只是logging.level.org.apache.http.wire=DEBUG似乎包含所有相关信息

用一些代码扩展@hstoerr答案：

创建LoggingRequestInterceptor记录请求响应

public class LoggingRequestInterceptor implements ClientHttpRequestInterceptor {

    private static final Logger log = LoggerFactory.getLogger(LoggingRequestInterceptor.class);

    @Override
    public ClientHttpResponse intercept(HttpRequest request, byte[] body, ClientHttpRequestExecution execution) throws IOException {

        ClientHttpResponse response = execution.execute(request, body);

        log(request,body,response);

        return response;
    }

    private void log(HttpRequest request, byte[] body, ClientHttpResponse response) throws IOException {
        //do logging
    }
}

设置RestTemplate

RestTemplate rt = new RestTemplate();

//set interceptors/requestFactory
ClientHttpRequestInterceptor ri = new LoggingRequestInterceptor();
List<ClientHttpRequestInterceptor> ris = new ArrayList<ClientHttpRequestInterceptor>();
ris.add(ri);
rt.setInterceptors(ris);
rt.setRequestFactory(new BufferingClientHttpRequestFactory(new SimpleClientHttpRequestFactory());

最好的选择是添加logging.level.org.springframework.web.client.RestTemplate=DEBUG到application.properties文件中。

其他解决方案（例如设置）log4j.logger.httpclient.wire将不会始终有效，因为它们假定您使用log4j和Apache HttpClient，但并非总是如此。

但是请注意，该语法仅适用于最新版本的Spring Boot。

这些答案都不能真正解决100％的问题。mjj1409获得了大部分信息，但可以方便地避免记录响应的问题，这需要更多的工作。Paul Sabou提供了一个看似现实的解决方案，但没有提供足够的细节来实际实施（这对我完全没有用）。Sofiene获得了日志记录，但存在一个关键问题：由于输入流已被消耗，因此响应不再可读了！

我建议使用BufferingClientHttpResponseWrapper包装响应对象，以允许多次读取响应主体：

public class LoggingRequestInterceptor implements ClientHttpRequestInterceptor {

    private static final Logger logger = LoggerFactory.getLogger(LoggingRequestInterceptor.class);

    @Override
    public ClientHttpResponse intercept(final HttpRequest request, final byte[] body,
            final ClientHttpRequestExecution execution) throws IOException {
        ClientHttpResponse response = execution.execute(request, body);

        response = log(request, body, response);

        return response;
    }

    private ClientHttpResponse log(final HttpRequest request, final byte[] body, final ClientHttpResponse response) {
        final ClientHttpResponse responseCopy = new BufferingClientHttpResponseWrapper(response);
        logger.debug("Method: ", request.getMethod().toString());
        logger.debug("URI: ", , request.getURI().toString());
        logger.debug("Request Body: " + new String(body));
        logger.debug("Response body: " + IOUtils.toString(responseCopy.getBody()));
        return responseCopy;
    }

}

这不会占用InputStream，因为响应主体已加载到内存中并且可以读取多次。如果您的类路径上没有BufferingClientHttpResponseWrapper，则可以在此处找到简单的实现：

https://github.com/spring-projects/spring-android/blob/master/spring-android-rest-template/src/main/java/org/springframework/http/client/BufferingClientHttpResponseWrapper.java

要设置RestTemplate：

LoggingRequestInterceptor loggingInterceptor = new LoggingRequestInterceptor();
restTemplate.getInterceptors().add(loggingInterceptor);

xenoterracide给出的解决方案

logging.level.org.apache.http=DEBUG

很好，但是问题是默认情况下不使用Apache HttpComponents。

要使用Apache HttpComponents，请添加到pom.xml中

<dependency>
    <groupId>org.apache.httpcomponents</groupId>
    <artifactId>httpasyncclient</artifactId>
</dependency>

并配置RestTemplate：

RestTemplate restTemplate = new RestTemplate();
restTemplate.setRequestFactory(new HttpComponentsAsyncClientHttpRequestFactory());

您可以使用spring-rest-template-logger记录RestTemplateHTTP流量。

向您的Maven项目添加一个依赖项：

<dependency>
    <groupId>org.hobsoft.spring</groupId>
    <artifactId>spring-rest-template-logger</artifactId>
    <version>2.0.0</version>
</dependency>

然后RestTemplate，如下所示自定义您的：

RestTemplate restTemplate = new RestTemplateBuilder()
    .customizers(new LoggingCustomizer())
    .build()

确保在中启用了调试日志记录application.properties：

logging.level.org.hobsoft.spring.resttemplatelogger.LoggingCustomizer = DEBUG

现在，所有RestTemplate HTTP通信都将记录到org.hobsoft.spring.resttemplatelogger.LoggingCustomizer调试级别。

免责声明：我写了这个库。

我终于找到了一种正确方法来做到这一点。大多数解决方案来自 如何配置Spring和SLF4J，以便可以进行日志记录？

似乎需要完成两件事：

1. 在log4j.properties中添加以下行： log4j.logger.httpclient.wire=DEBUG
2. 确保spring不会忽略您的日志记录配置

第二个问题主要发生在使用slf4j的春季环境中（正如我的情况）。因此，使用slf4j时，请确保发生以下两件事：

1. 您的类路径中没有commons-logging库：这可以通过在pom中添加排除描述符来完成：

           <exclusions><exclusion>
               <groupId>commons-logging</groupId>
               <artifactId>commons-logging</artifactId>
           </exclusion>
       </exclusions>

2. log4j.properties文件存储在类路径中的某个位置，Spring可以在其中找到/查看它。如果您对此有疑问，那么最后的解决方法是将log4j.properties文件放入默认包中（这不是一种好的做法，而只是为了确保一切按预期运行）

记录RestTemplate

选项1.打开调试日志记录。

配置RestTemplate

• 默认情况下，RestTemplate依靠标准JDK工具建立HTTP连接。您可以切换为使用其他HTTP库，例如Apache HttpComponents

  @Bean public RestTemplate restTemplate（RestTemplateBuilder builder）{RestTemplate restTemplate = builder.build（）; 返回restTemplate; }

配置日志记录

• application.yml

  日志记录：级别：org.springframework.web.client.RestTemplate：调试

选项2。使用拦截器

包装回应

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;

import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.client.ClientHttpResponse;
import org.springframework.util.StreamUtils;

public final class BufferingClientHttpResponseWrapper implements ClientHttpResponse {

    private final ClientHttpResponse response;

    private byte[] body;


    BufferingClientHttpResponseWrapper(ClientHttpResponse response) {
        this.response = response;
    }

    public HttpStatus getStatusCode() throws IOException {
        return this.response.getStatusCode();
    }

    public int getRawStatusCode() throws IOException {
        return this.response.getRawStatusCode();
    }

    public String getStatusText() throws IOException {
        return this.response.getStatusText();
    }

    public HttpHeaders getHeaders() {
        return this.response.getHeaders();
    }

    public InputStream getBody() throws IOException {
        if (this.body == null) {
            this.body = StreamUtils.copyToByteArray(this.response.getBody());
        }
        return new ByteArrayInputStream(this.body);
    }

    public void close() {
        this.response.close();
    }
}

实施拦截器

package com.example.logging;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.http.HttpRequest;
import org.springframework.http.client.ClientHttpRequestExecution;
import org.springframework.http.client.ClientHttpRequestInterceptor;
import org.springframework.http.client.ClientHttpResponse;

public class LoggingRestTemplate implements ClientHttpRequestInterceptor {

    private final static Logger LOGGER = LoggerFactory.getLogger(LoggingRestTemplate.class);

    @Override
    public ClientHttpResponse intercept(HttpRequest request, byte[] body,
            ClientHttpRequestExecution execution) throws IOException {
        traceRequest(request, body);
        ClientHttpResponse response = execution.execute(request, body);
        return traceResponse(response);
    }

    private void traceRequest(HttpRequest request, byte[] body) throws IOException {
        if (!LOGGER.isDebugEnabled()) {
            return;
        }
        LOGGER.debug(
                "==========================request begin==============================================");
        LOGGER.debug("URI                 : {}", request.getURI());
        LOGGER.debug("Method            : {}", request.getMethod());
        LOGGER.debug("Headers         : {}", request.getHeaders());
        LOGGER.debug("Request body: {}", new String(body, "UTF-8"));
        LOGGER.debug(
                "==========================request end================================================");
    }

    private ClientHttpResponse traceResponse(ClientHttpResponse response) throws IOException {
        if (!LOGGER.isDebugEnabled()) {
            return response;
        }
        final ClientHttpResponse responseWrapper = new BufferingClientHttpResponseWrapper(response);
        StringBuilder inputStringBuilder = new StringBuilder();
        BufferedReader bufferedReader = new BufferedReader(
                new InputStreamReader(responseWrapper.getBody(), "UTF-8"));
        String line = bufferedReader.readLine();
        while (line != null) {
            inputStringBuilder.append(line);
            inputStringBuilder.append('\n');
            line = bufferedReader.readLine();
        }
        LOGGER.debug(
                "==========================response begin=============================================");
        LOGGER.debug("Status code    : {}", responseWrapper.getStatusCode());
        LOGGER.debug("Status text    : {}", responseWrapper.getStatusText());
        LOGGER.debug("Headers            : {}", responseWrapper.getHeaders());
        LOGGER.debug("Response body: {}", inputStringBuilder.toString());
        LOGGER.debug(
                "==========================response end===============================================");
        return responseWrapper;
    }

}

配置RestTemplate

@Bean
public RestTemplate restTemplate(RestTemplateBuilder builder) {
    RestTemplate restTemplate = builder.build();
    restTemplate.setInterceptors(Collections.singletonList(new LoggingRestTemplate()));
    return restTemplate;
}

配置日志记录

• 检查LoggingRestTemplate的软件包，例如application.yml：

  日志记录：级别：com.example.logging：调试

选项3.使用httpcomponent

导入httpcomponent依赖

<dependency>
  <groupId>org.apache.httpcomponents</groupId>
  <artifactId>httpasyncclient</artifactId>

配置RestTemplate

@Bean
public RestTemplate restTemplate(RestTemplateBuilder builder) {
    RestTemplate restTemplate = builder.build();
    restTemplate.setRequestFactory(new HttpComponentsAsyncClientHttpRequestFactory());
    return restTemplate;
}

配置日志记录

• 检查LoggingRestTemplate的软件包，例如application.yml：

  日志记录：级别：org.apache.http：调试

---- 2019年7月----

（使用Spring Boot）

令我惊讶的是，Spring Boot尽管具有零配置魔术，却没有提供一种使用RestTemplate检查或记录简单JSON响应正文的简便方法。我浏览了此处提供的各种答案和评论，并分享了我自己的（仍）有效的简化版本，并且在给定当前选项的情况下，对我来说似乎是一个合理的解决方案（我正在将Spring Boot 2.1.6与Gradle 4.4结合使用）

1.使用Fiddler作为http代理

实际上，这是一个非常优雅的解决方案，因为它绕开了创建自己的拦截器或将基础的HTTP客户端更改为apache的所有繁琐工作（请参见下文）。

安装并运行Fiddler

然后

添加-DproxySet=true -Dhttp.proxyHost=localhost -Dhttp.proxyPort=8888到您的VM选项

2.使用Apache HttpClient

将Apache HttpClient添加到您的Maven或Gradle依赖项。

<dependency>
    <groupId>org.apache.httpcomponents</groupId>
    <artifactId>httpclient</artifactId>
    <version>4.5.9</version>
</dependency>

使用HttpComponentsClientHttpRequestFactory作为RequestFactory的RestTemplate。最简单的方法是：

RestTemplate restTemplate = new RestTemplate();

restTemplate.setRequestFactory(new HttpComponentsClientHttpRequestFactory());

在application.properties文件中启用DEBUG （如果您使用的是Spring Boot）

logging.level.org.apache.http=DEBUG

如果您使用的是Spring Boot，则需要确保已建立日志记录框架，例如，通过使用包含包括在内的spring-boot-starter依赖项spring-boot-starter-logging。

3.使用拦截器

我将让您通读其他答案和评论中的建议，反建议和陷阱，并自行决定是否要沿这条路走。

4.日志URL和响应状态（无正文）

尽管这不满足记录主体的规定要求，但这是开始记录REST调用的快速简便的方法。它显示完整的URL和响应状态。

只需将以下行添加到application.properties文件中（假设您使用的是Spring Boot，并假设您使用的Spring Boot Starter依赖项包括spring-boot-starter-logging）

logging.level.org.springframework.web.client.RestTemplate = DEBUG

输出将如下所示：

2019-07-29 11:53:50.265 DEBUG o.s.web.client.RestTemplate : HTTP GET http://www.myrestservice.com/Endpoint?myQueryParam=myValue
2019-07-29 11:53:50.276 DEBUG o.s.web.client.RestTemplate : Accept=[application/json]
2019-07-29 11:53:50.584 DEBUG o.s.web.client.RestTemplate : Response 200 OK
2019-07-29 11:53:50.585 DEBUG o.s.web.client.RestTemplate : Reading to [org.mynamespace.MyJsonModelClass]

除了在其他答案中描述的HttpClient日志记录之外，您还可以引入ClientHttpRequestInterceptor来读取请求和响应的正文并将其记录。如果其他内容也使用HttpClient，或者您想要自定义日志记录格式，则可能需要执行此操作。警告：您将需要为RestTemplate提供一个BufferingClientHttpRequestFactory，以便您可以读取两次响应。

如其他响应中所述，响应主体需要特殊处理，以便可以重复读取（默认情况下，其内容在第一次读取时就被消耗掉）。

BufferingClientHttpRequestFactory拦截器本身可以包装响应并确保内容被保留并可以重复读取（由记录器以及响应的使用者使用），而不是使用设置请求时的：

我的拦截器

• 使用包装器缓冲响应主体
• 以更紧凑的方式登录
• 记录状态代码标识符（例如201已创建）
• 包含一个请求序列号，可轻松区分多个线程中的并发日志条目

码：

public class LoggingInterceptor implements ClientHttpRequestInterceptor {

    private final Logger log = LoggerFactory.getLogger(getClass());
    private AtomicInteger requestNumberSequence = new AtomicInteger(0);

    @Override
    public ClientHttpResponse intercept(HttpRequest request, byte[] body, ClientHttpRequestExecution execution) throws IOException {
        int requestNumber = requestNumberSequence.incrementAndGet();
        logRequest(requestNumber, request, body);
        ClientHttpResponse response = execution.execute(request, body);
        response = new BufferedClientHttpResponse(response);
        logResponse(requestNumber, response);
        return response;
    }

    private void logRequest(int requestNumber, HttpRequest request, byte[] body) {
        if (log.isDebugEnabled()) {
            String prefix = requestNumber + " > ";
            log.debug("{} Request: {} {}", prefix, request.getMethod(), request.getURI());
            log.debug("{} Headers: {}", prefix, request.getHeaders());
            if (body.length > 0) {
                log.debug("{} Body: \n{}", prefix, new String(body, StandardCharsets.UTF_8));
            }
        }
    }

    private void logResponse(int requestNumber, ClientHttpResponse response) throws IOException {
        if (log.isDebugEnabled()) {
            String prefix = requestNumber + " < ";
            log.debug("{} Response: {} {} {}", prefix, response.getStatusCode(), response.getStatusCode().name(), response.getStatusText());
            log.debug("{} Headers: {}", prefix, response.getHeaders());
            String body = StreamUtils.copyToString(response.getBody(), StandardCharsets.UTF_8);
            if (body.length() > 0) {
                log.debug("{} Body: \n{}", prefix, body);
            }
        }
    }

    /**
     * Wrapper around ClientHttpResponse, buffers the body so it can be read repeatedly (for logging & consuming the result).
     */
    private static class BufferedClientHttpResponse implements ClientHttpResponse {

        private final ClientHttpResponse response;
        private byte[] body;

        public BufferedClientHttpResponse(ClientHttpResponse response) {
            this.response = response;
        }

        @Override
        public HttpStatus getStatusCode() throws IOException {
            return response.getStatusCode();
        }

        @Override
        public int getRawStatusCode() throws IOException {
            return response.getRawStatusCode();
        }

        @Override
        public String getStatusText() throws IOException {
            return response.getStatusText();
        }

        @Override
        public void close() {
            response.close();
        }

        @Override
        public InputStream getBody() throws IOException {
            if (body == null) {
                body = StreamUtils.copyToByteArray(response.getBody());
            }
            return new ByteArrayInputStream(body);
        }

        @Override
        public HttpHeaders getHeaders() {
            return response.getHeaders();
        }
    }
}

组态：

 @Bean
    public RestTemplateBuilder restTemplateBuilder() {
        return new RestTemplateBuilder()
                .additionalInterceptors(Collections.singletonList(new LoggingInterceptor()));
    }

日志输出示例：

2018-10-08 10:58:53 [main] DEBUG x.y.z.LoggingInterceptor - 2 >  Request: POST http://localhost:53969/payment/v4/private/payment-lists/10022/templates
2018-10-08 10:58:53 [main] DEBUG x.y.z.LoggingInterceptor - 2 >  Headers: {Accept=[application/json, application/json], Content-Type=[application/json;charset=UTF-8], Content-Length=[986]}
2018-10-08 10:58:53 [main] DEBUG x.y.z.LoggingInterceptor - 2 >  Body: 
{"idKey":null, ...}
2018-10-08 10:58:53 [main] DEBUG x.y.z.LoggingInterceptor - 2 <  Response: 200 OK 
2018-10-08 10:58:53 [main] DEBUG x.y.z.LoggingInterceptor - 2 <  Headers: {Content-Type=[application/json;charset=UTF-8], Transfer-Encoding=[chunked], Date=[Mon, 08 Oct 2018 08:58:53 GMT]}
2018-10-08 10:58:53 [main] DEBUG x.y.z.LoggingInterceptor - 2 <  Body: 
{ "idKey" : "10022", ...  }

application.properties

logging.level.org.springframework.web.client=DEBUG

application.yml

logging:
  level:  
    root: WARN
    org.springframework.web.client: DEBUG

这可能不是正确的方法，但是我认为这是打印请求和响应而不填太多日志的最简单方法。

通过在以下两行中添加application.properties，可在第一行记录所有请求和响应，以记录请求，在第二行记录响应。

logging.level.org.springframework.web.client.RestTemplate=DEBUG
logging.level.org.springframework.web.servlet.mvc.method.annotation.HttpEntityMethodProcessor=DEBUG

假设RestTemplate已配置为使用HttpClient 4.x，则可以在此处阅读HttpClient的日志记录文档。记录器与其他答案中指定的记录器不同。

HttpClient 3.x的日志记录配置可在此处获得。

如此之多的响应都需要更改编码和自定义类，这实际上不是必需的。打开调试代理（例如fiddler），然后将Java环境设置为在命令行上使用代理（-Dhttp.proxyHost和-Dhttp.proxyPort），然后运行fiddler，您可以完整地查看请求和响应。它还具有许多辅助优势，例如能够修改结果和响应，然后再将结果和响应发送到进行实验，然后再进行服务器修改。

最后一个可能出现的问题是，如果必须使用HTTPS，则需要从提琴手导出SSL证书，并将其导入到Java密钥库（证书）提示：默认的Java密钥库密码通常为“ changeit”。

要在Apache HttpClient的帮助下登录到Logback：

您需要在类路径中使用Apache HttpClient：

<dependency>
  <groupId>org.apache.httpcomponents</groupId>
  <artifactId>httpclient</artifactId>
  <version>4.5.10</version>
</dependency>

配置您RestTemplate使用HttpClient：

restTemplate.setRequestFactory(new HttpComponentsClientHttpRequestFactory());

要记录请求和响应，请添加到Logback配置文件：

<logger name="org.apache.http.wire" level="DEBUG"/>

或记录更多：

<logger name="org.apache.http" level="DEBUG"/>

如果使用any ，则配置RestTemplatea 的技巧将BufferingClientHttpRequestFactory不起作用ClientHttpRequestInterceptor，如果您尝试通过拦截器进行记录，则将无法使用。这是由于InterceptingHttpAccessor（RestTemplate子类）的工作方式。

长话短说...只需使用此类代替RestTemplate（请注意，该类使用SLF4J记录API，根据需要进行编辑）：

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Constructor;
import java.nio.charset.StandardCharsets;
import java.util.List;
import java.util.Map;

import javax.annotation.PostConstruct;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpRequest;
import org.springframework.http.HttpStatus;
import org.springframework.http.client.ClientHttpRequestExecution;
import org.springframework.http.client.ClientHttpRequestInterceptor;
import org.springframework.http.client.ClientHttpResponse;
import org.springframework.web.client.RestTemplate;

/**
 * A {@link RestTemplate} that logs every request and response.
 */
public class LoggingRestTemplate extends RestTemplate {

    // Bleh, this class is not public
    private static final String RESPONSE_WRAPPER_CLASS = "org.springframework.http.client.BufferingClientHttpResponseWrapper";

    private Logger log = LoggerFactory.getLogger(this.getClass());

    private boolean hideAuthorizationHeaders = true;
    private Class<?> wrapperClass;
    private Constructor<?> wrapperConstructor;

    /**
     * Configure the logger to log requests and responses to.
     *
     * @param log log destination, or null to disable
     */
    public void setLogger(Logger log) {
        this.log = log;
    }

    /**
     * Configure the logger to log requests and responses to by name.
     *
     * @param name name of the log destination, or null to disable
     */
    public void setLoggerName(String name) {
        this.setLogger(name != null ? LoggerFactory.getLogger(name) : null);
    }

    /**
     * Configure whether to hide the contents of {@code Authorization} headers.
     *
     * <p>
     * Default true.
     *
     * @param hideAuthorizationHeaders true to hide, otherwise false
     */
    public void setHideAuthorizationHeaders(boolean hideAuthorizationHeaders) {
        this.hideAuthorizationHeaders = hideAuthorizationHeaders;
    }

    /**
     * Log a request.
     */
    protected void traceRequest(HttpRequest request, byte[] body) {
        this.log.debug("xmit: {} {}\n{}{}", request.getMethod(), request.getURI(), this.toString(request.getHeaders()),
          body != null && body.length > 0 ? "\n\n" + new String(body, StandardCharsets.UTF_8) : "");
    }

    /**
     * Log a response.
     */
    protected void traceResponse(ClientHttpResponse response) {
        final ByteArrayOutputStream bodyBuf = new ByteArrayOutputStream();
        HttpStatus statusCode = null;
        try {
            statusCode = response.getStatusCode();
        } catch (IOException e) {
            // ignore
        }
        String statusText = null;
        try {
            statusText = response.getStatusText();
        } catch (IOException e) {
            // ignore
        }
        try (final InputStream input = response.getBody()) {
            byte[] b = new byte[1024];
            int r;
            while ((r = input.read(b)) != -1)
                bodyBuf.write(b, 0, r);
        } catch (IOException e) {
            // ignore
        }
        this.log.debug("recv: {} {}\n{}{}", statusCode, statusText, this.toString(response.getHeaders()),
          bodyBuf.size() > 0 ? "\n\n" + new String(bodyBuf.toByteArray(), StandardCharsets.UTF_8) : "");
    }

    @PostConstruct
    private void addLoggingInterceptor() {
        this.getInterceptors().add(new ClientHttpRequestInterceptor() {
            @Override
            public ClientHttpResponse intercept(HttpRequest request, byte[] body, ClientHttpRequestExecution execution)
              throws IOException {

                // Log request
                if (LoggingRestTemplate.this.log != null && LoggingRestTemplate.this.log.isDebugEnabled())
                    LoggingRestTemplate.this.traceRequest(request, body);

                // Perform request
                ClientHttpResponse response = execution.execute(request, body);

                // Log response
                if (LoggingRestTemplate.this.log != null && LoggingRestTemplate.this.log.isDebugEnabled()) {
                    final ClientHttpResponse bufferedResponse = LoggingRestTemplate.this.ensureBuffered(response);
                    if (bufferedResponse != null) {
                        LoggingRestTemplate.this.traceResponse(bufferedResponse);
                        response = bufferedResponse;
                    }
                }

                // Done
                return response;
            }
        });
    }

    private ClientHttpResponse ensureBuffered(ClientHttpResponse response) {
        try {
            if (this.wrapperClass == null)
                this.wrapperClass = Class.forName(RESPONSE_WRAPPER_CLASS, false, ClientHttpResponse.class.getClassLoader());
            if (!this.wrapperClass.isInstance(response)) {
                if (this.wrapperConstructor == null) {
                    this.wrapperConstructor = this.wrapperClass.getDeclaredConstructor(ClientHttpResponse.class);
                    this.wrapperConstructor.setAccessible(true);
                }
                response = (ClientHttpResponse)this.wrapperConstructor.newInstance(response);
            }
            return response;
        } catch (Exception e) {
            this.log.error("error creating {} instance: {}", RESPONSE_WRAPPER_CLASS, e);
            return null;
        }
    }

    private String toString(HttpHeaders headers) {
        final StringBuilder headerBuf = new StringBuilder();
        for (Map.Entry<String, List<String>> entry : headers.entrySet()) {
            if (headerBuf.length() > 0)
                headerBuf.append('\n');
            final String name = entry.getKey();
            for (String value : entry.getValue()) {
                if (this.hideAuthorizationHeaders && name.equalsIgnoreCase(HttpHeaders.AUTHORIZATION))
                    value = "[omitted]";
                headerBuf.append(name).append(": ").append(value);
            }
        }
        return headerBuf.toString();
    }
}

我同意这样做很费力，这是很愚蠢的。

除了上面的讨论外，这仅代表快乐场景。如果出现错误，您可能将无法记录响应。

在这种情况下以及上面的所有情况下，您必须重写DefaultResponseErrorHandler并将其设置如下

restTemplate.setErrorHandler(new DefaultResponseErrorHandlerImpl());

奇怪的是，这些解决方案都不起作用，因为RestTemplate似乎没有在某些客户端和服务器500x错误上返回响应。在这种情况下，您还可以通过实现ResponseErrorHandler来记录这些内容，如下所示。这是一个草稿代码，但是您明白了：

您可以设置与错误处理程序相同的拦截器：

restTemplate.getInterceptors().add(interceptor);
restTemplate.setRequestFactory(new BufferingClientHttpRequestFactory(new SimpleClientHttpRequestFactory()));
restTemplate.setErrorHandler(interceptor);

拦截器实现两个接口：

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashSet;
import java.util.Set;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.http.HttpRequest;
import org.springframework.http.HttpStatus.Series;
import org.springframework.http.client.ClientHttpRequestExecution;
import org.springframework.http.client.ClientHttpRequestInterceptor;
import org.springframework.http.client.ClientHttpResponse;
import org.springframework.web.client.DefaultResponseErrorHandler;
import org.springframework.web.client.ResponseErrorHandler;

public class LoggingRequestInterceptor implements ClientHttpRequestInterceptor, ResponseErrorHandler {
    static final Logger log = LoggerFactory.getLogger(LoggingRequestInterceptor.class);
    static final DefaultResponseErrorHandler defaultResponseErrorHandler = new DefaultResponseErrorHandler();
    final Set<Series> loggableStatuses = new HashSet();

    public LoggingRequestInterceptor() {
    }

    public LoggingRequestInterceptor(Set<Series> loggableStatuses) {
        loggableStatuses.addAll(loggableStatuses);
    }

    public ClientHttpResponse intercept(HttpRequest request, byte[] body, ClientHttpRequestExecution execution) throws IOException {
        this.traceRequest(request, body);
        ClientHttpResponse response = execution.execute(request, body);
        if(response != null) {
            this.traceResponse(response);
        }

        return response;
    }

    private void traceRequest(HttpRequest request, byte[] body) throws IOException {
        log.debug("===========================request begin================================================");
        log.debug("URI         : {}", request.getURI());
        log.debug("Method      : {}", request.getMethod());
        log.debug("Headers     : {}", request.getHeaders());
        log.debug("Request body: {}", new String(body, "UTF-8"));
        log.debug("==========================request end================================================");
    }

    private void traceResponse(ClientHttpResponse response) throws IOException {
        if(this.loggableStatuses.isEmpty() || this.loggableStatuses.contains(response.getStatusCode().series())) {
            StringBuilder inputStringBuilder = new StringBuilder();

            try {
                BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(response.getBody(), "UTF-8"));

                for(String line = bufferedReader.readLine(); line != null; line = bufferedReader.readLine()) {
                    inputStringBuilder.append(line);
                    inputStringBuilder.append('\n');
                }
            } catch (Throwable var5) {
                log.error("cannot read response due to error", var5);
            }

            log.debug("============================response begin==========================================");
            log.debug("Status code  : {}", response.getStatusCode());
            log.debug("Status text  : {}", response.getStatusText());
            log.debug("Headers      : {}", response.getHeaders());
            log.debug("Response body: {}", inputStringBuilder.toString());
            log.debug("=======================response end=================================================");
        }

    }

    public boolean hasError(ClientHttpResponse response) throws IOException {
        return defaultResponseErrorHandler.hasError(response);
    }

    public void handleError(ClientHttpResponse response) throws IOException {
        this.traceResponse(response);
        defaultResponseErrorHandler.handleError(response);
    }
}

正如@MilacH指出的那样，实现中存在错误。如果返回statusCode> 400，则会从拦截器中抛出IOException，因为没有调用errorHandler。可以忽略该异常，然后在处理程序方法中再次捕获该异常。

package net.sprd.fulfillment.common;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.http.HttpRequest;
import org.springframework.http.client.ClientHttpRequestExecution;
import org.springframework.http.client.ClientHttpRequestInterceptor;
import org.springframework.http.client.ClientHttpResponse;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

import static java.nio.charset.StandardCharsets.UTF_8;

public class LoggingRequestInterceptor implements ClientHttpRequestInterceptor {

    final static Logger log = LoggerFactory.getLogger(LoggingRequestInterceptor.class);

    @SuppressWarnings("HardcodedLineSeparator")
    public static final char LINE_BREAK = '\n';

    @Override
    public ClientHttpResponse intercept(HttpRequest request, byte[] body, ClientHttpRequestExecution execution) throws IOException {
        try {
            traceRequest(request, body);
        } catch (Exception e) {
            log.warn("Exception in LoggingRequestInterceptor while tracing request", e);
        }

        ClientHttpResponse response = execution.execute(request, body);

        try {
            traceResponse(response);
        } catch (IOException e) {
            // ignore the exception here, as it will be handled by the error handler of the restTemplate
            log.warn("Exception in LoggingRequestInterceptor", e);
        }
        return response;
    }

    private void traceRequest(HttpRequest request, byte[] body) {
        log.info("===========================request begin================================================");
        log.info("URI         : {}", request.getURI());
        log.info("Method      : {}", request.getMethod());
        log.info("Headers     : {}", request.getHeaders());
        log.info("Request body: {}", new String(body, UTF_8));
        log.info("==========================request end================================================");
    }

    private void traceResponse(ClientHttpResponse response) throws IOException {
        StringBuilder inputStringBuilder = new StringBuilder();
        try (BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(response.getBody(), UTF_8))) {
            String line = bufferedReader.readLine();
            while (line != null) {
                inputStringBuilder.append(line);
                inputStringBuilder.append(LINE_BREAK);
                line = bufferedReader.readLine();
            }
        }

        log.info("============================response begin==========================================");
        log.info("Status code  : {}", response.getStatusCode());
        log.info("Status text  : {}", response.getStatusText());
        log.info("Headers      : {}", response.getHeaders());
        log.info("Response body: {}", inputStringBuilder);
        log.info("=======================response end=================================================");
    }

}

现在最好的解决方案，只需添加依赖项：

<dependency>
  <groupId>com.github.zg2pro</groupId>
  <artifactId>spring-rest-basis</artifactId>
  <version>v.x</version>
</dependency>

它包含一个LoggingRequestInterceptor类，您可以将该方式添加到RestTemplate中：

通过以以下方式将其作为拦截器添加到spring RestTemplate中来集成此实用程序：

restTemplate.setRequestFactory(LoggingRequestFactoryFactory.build());

并将slf4j实现添加到您的框架中，例如log4j。

或直接使用“ Zg2proRestTemplate”。@PaulSabou的“最佳答案”看起来是这样，因为使用弹簧RestTemplate时不一定加载httpclient和所有apache.http库。

也想添加我的实现。对于所有缺少的分号，我表示歉意，这是用Groovy编写的。

我需要比提供的答案更可配置的东西。这是一个非常灵活的rest模板bean，它将记录OP正在寻找的所有内容。

自定义日志拦截器类：

import org.springframework.http.HttpRequest
import org.springframework.http.client.ClientHttpRequestExecution
import org.springframework.http.client.ClientHttpRequestInterceptor
import org.springframework.http.client.ClientHttpResponse
import org.springframework.util.StreamUtils

import java.nio.charset.Charset

class HttpLoggingInterceptor implements ClientHttpRequestInterceptor {

    private final static Logger log = LoggerFactory.getLogger(HttpLoggingInterceptor.class)

    @Override
    ClientHttpResponse intercept(HttpRequest request, byte[] body, ClientHttpRequestExecution execution) throws IOException {
        logRequest(request, body)
        ClientHttpResponse response = execution.execute(request, body)
        logResponse(response)
        return response
    }

    private void logRequest(HttpRequest request, byte[] body) throws IOException {
        if (log.isDebugEnabled()) {
            log.debug("===========================request begin================================================")
            log.debug("URI         : {}", request.getURI())
            log.debug("Method      : {}", request.getMethod())
            log.debug("Headers     : {}", request.getHeaders())
            log.debug("Request body: {}", new String(body, "UTF-8"))
            log.debug("==========================request end================================================")
        }
    }

    private void logResponse(ClientHttpResponse response) throws IOException {
        if (log.isDebugEnabled()) {
            log.debug("============================response begin==========================================")
            log.debug("Status code  : {}", response.getStatusCode())
            log.debug("Status text  : {}", response.getStatusText())
            log.debug("Headers      : {}", response.getHeaders())
            log.debug("Response body: {}", StreamUtils.copyToString(response.getBody(), Charset.defaultCharset()))
            log.debug("=======================response end=================================================")
        }
    }
}

其余模板Bean定义：

@Bean(name = 'myRestTemplate')
RestTemplate myRestTemplate(RestTemplateBuilder builder) {

    RequestConfig requestConfig = RequestConfig.custom()
            .setConnectTimeout(10 * 1000) // 10 seconds
            .setSocketTimeout(300 * 1000) // 300 seconds
            .build()

    PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager()
    connectionManager.setMaxTotal(10)
    connectionManager.closeIdleConnections(5, TimeUnit.MINUTES)

    CloseableHttpClient httpClient = HttpClients.custom()
            .setConnectionManager(connectionManager)
            .setDefaultRequestConfig(requestConfig)
            .disableRedirectHandling()
            .build()

    RestTemplate restTemplate = builder
            .rootUri("https://domain.server.com")
            .basicAuthorization("username", "password")
            .requestFactory(new BufferingClientHttpRequestFactory(new HttpComponentsClientHttpRequestFactory(httpClient)))
            .interceptors(new HttpLoggingInterceptor())
            .build()

    return restTemplate
}