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2024-10-08 07:00:03

Spring RestTemplate -如何启用请求/响应的完整调试/日志记录?

我已经使用Spring RestTemplate有一段时间了，当我试图调试它的请求和响应时，我总是碰壁。我基本上希望看到与打开“verbose”选项时使用curl时相同的东西。例如:

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

将显示发送的数据和接收的数据(包括头、cookie等)。

我看了一些相关的帖子，比如: 如何在Spring RestTemplate中记录响应? 但我还没能解决这个问题。

实现这一点的一种方法是实际更改RestTemplate源代码，并在那里添加一些额外的日志记录语句，但我认为这种方法确实是最后的办法。应该有某种方法告诉Spring Web Client/RestTemplate以一种更友好的方式记录所有内容。

我的目标是能够用如下代码做到这一点:

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

然后在日志文件或控制台中获得相同类型的调试信息(就像我使用curl获得的一样)。 我相信这对于任何使用Spring RestTemplate并且遇到问题的人来说都是非常有用的。使用curl来调试RestTemplate问题是行不通的(在某些情况下)。

当前回答

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。

2017-08-22 08:35:01

其他回答

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)

2011-11-01 08:41:48

除了在另一个答案中描述的HttpClient日志之外，您还可以引入一个ClientHttpRequestInterceptor，它读取请求体和响应并记录它。如果其他东西也使用HttpClient，或者你想要一个自定义的日志格式，你可能需要这样做。注意:您需要给RestTemplate一个BufferingClientHttpRequestFactory，这样您就可以读取两次响应。

2014-02-25 14:42:05

在Spring Boot中，您可以通过在属性中设置这个(或其他12因素方法)来获得完整的请求/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}"

和响应

-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loginging.level.org.apache.http.wire =DEBUG，它似乎包含了所有相关信息

2016-08-23 19:48:20

这些答案都不能完全解决问题。Mjj1409实现了大部分功能，但方便地避免了记录响应的问题，因为这需要更多的工作。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现(对我来说根本没用)。Sofiene得到了日志记录，但遇到了一个严重的问题:响应不再可读，因为输入流已经被消耗了!

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

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;
    }

}

这将不会消耗InputStream，因为响应体被加载到内存中，可以多次读取。如果你的类路径上没有BufferingClientHttpResponseWrapper，你可以在这里找到简单的实现:

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

设置RestTemplate:

LoggingRequestInterceptor loggingInterceptor = new LoggingRequestInterceptor();
restTemplate.getInterceptors().add(loggingInterceptor);
2016-03-01 21:07:20

奇怪的是，这些解决方案都不能工作，因为RestTemplate似乎不会在某些客户机和服务器上返回500x错误的响应。在这种情况下，您还必须通过实现ResponseErrorHandler来记录这些日志，如下所示。这是一个代码草案，但你明白了:

你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);

拦截实现了两个接口:

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);
    }
}
2017-10-18 02:11:20

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