在Apache HttpClient的帮助下登录Logback:

在类路径中需要Apache HttpClient:

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

配置您的RestTemplate以使用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"/>

或者记录更多:

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

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，你可以这样添加到你的RestTemplate:

通过将它作为拦截器添加到spring RestTemplate中来集成这个实用程序，方法如下:

restTemplate.setRequestFactory(LoggingRequestFactoryFactory.build());

并将slf4j实现添加到您的框架，如log4j。

或直接使用“Zg2proRestTemplate”。@PaulSabou的“最佳答案”看起来一般，因为httpclient和所有apache。使用spring RestTemplate时，不一定会加载http库。

正如@MilacH指出的，在实现中有一个错误。如果返回statusCode > 400，则从拦截器抛出IOException，因为没有调用errorHandler。可以忽略异常，然后在处理程序方法中再次捕获异常。

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=================================================");
    }

}

除了上面的讨论，这只代表了快乐的场景。如果出现错误，您可能无法记录响应。

在这种情况下加上上面所有的情况，您必须重写DefaultResponseErrorHandler并像下面那样设置它

restTemplate.setErrorHandler(new DefaultResponseErrorHandlerImpl());

假设RestTemplate配置为使用HttpClient 4。x，你可以在这里阅读HttpClient的日志文档。这些记录器与其他答案中指定的记录器不同。

HttpClient 3的日志配置。X在这里可用。

我终于找到了正确的方法。 大部分的解决方案来自 我如何配置Spring和SLF4J以获得日志记录?

看来有两件事需要做:

在log4j中添加以下行。属性:log4j.logger.httpclient.wire=DEBUG 确保spring不会忽略您的日志配置

第二个问题主要发生在使用slf4j的spring环境中(就像我的例子一样)。 因此，当使用slf4j时，请确保发生以下两件事:

There is no commons-logging library in your classpath : this can be done by adding the exclusion descriptors in your pom : <exclusions><exclusion> <groupId>commons-logging</groupId> <artifactId>commons-logging</artifactId> </exclusion> </exclusions> The log4j.properties file is stored somewhere in the classpath where spring can find/see it. If you have problems with this, a last resort solution would be to put the log4j.properties file in the default package (not a good practice but just to see that things work as you expect)