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)。
用一些代码扩展@hstoerr answer:
创建LoggingRequestInterceptor来记录请求响应
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
}
}
设置创建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());
wire提供了太多不可读的日志，所以我使用日志记录应用程序Servlet和RestTemplate请求和响应的有效负载。
build.gradle:
compile group: 'org.zalando', name: 'logbook-spring-boot-starter', version: '2.6.2'
或Maven依赖:
<dependency>
<groupId>org.zalando</groupId>
<artifactId>logbook-spring-boot-starter</artifactId>
<version>2.6.2</version>
</dependency>
应用程序。属性(或槽YAML):
logging.level.org.zalando.logbook = TRACE
RestTemplate.java:
import java.util.function.Supplier;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.springframework.boot.web.client.RestTemplateBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.client.ClientHttpRequestFactory;
import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
import org.springframework.web.client.RestTemplate;
import org.zalando.logbook.httpclient.LogbookHttpRequestInterceptor;
import org.zalando.logbook.httpclient.LogbookHttpResponseInterceptor;
@Configuration
public class RestTemplateConfiguration {
private final LogbookHttpRequestInterceptor logbookHttpRequestInterceptor;
private final LogbookHttpResponseInterceptor logbookHttpResponseInterceptor;
public RestTemplateConfiguration(LogbookHttpRequestInterceptor logbookHttpRequestInterceptor,
LogbookHttpResponseInterceptor logbookHttpResponseInterceptor) {
this.logbookHttpRequestInterceptor = logbookHttpRequestInterceptor;
this.logbookHttpResponseInterceptor = logbookHttpResponseInterceptor;
}
@Bean
public RestTemplate restTemplate(RestTemplateBuilder restTemplateBuilder) {
return restTemplateBuilder
.requestFactory(new MyRequestFactorySupplier())
.build();
}
class MyRequestFactorySupplier implements Supplier<ClientHttpRequestFactory> {
@Override
public ClientHttpRequestFactory get() {
// Using Apache HTTP client
CloseableHttpClient client = HttpClientBuilder.create()
.addInterceptorFirst(logbookHttpRequestInterceptor)
.addInterceptorFirst(logbookHttpResponseInterceptor)
.build();
return new HttpComponentsClientHttpRequestFactory(client);
}
}
}
