Soringboot下RestTemplateConfig 配置打印请求响应日志-优快云博客

该博客介绍了如何在Spring中通过RestTemplateConfig配置类设置连接超时和读超时，并利用LoggingRequestInterceptor拦截器详细记录HTTP请求和响应的日志，便于调试和监控。

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RestTemplateConfig 配置打印日志

原文摘自这里https://blog.youkuaiyun.com/laow1314/article/details/120757485


@Configuration
public class RestTemplateConfig {

    /**
     * 初始化连接工厂
     * @return
     */
    @Bean
    public ClientHttpRequestFactory simpleClientHttpRequestFactory(){
        SimpleClientHttpRequestFactory factory = new SimpleClientHttpRequestFactory();
        /**连接超时*/
        factory.setConnectTimeout(15000);
        /**读超时*/
        factory.setReadTimeout(5000);
        return factory;
    }


    /**
     * 初始化请求模板
     * @param simpleClientHttpRequestFactory
     * @return
     */
    @Bean
    public RestTemplate restTemplate(ClientHttpRequestFactory simpleClientHttpRequestFactory,@Qualifier("loggingRequestInterceptor") LoggingRequestInterceptor loggingRequestInterceptor){

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

        return restTemplate;
    }
}

LoggingRequestInterceptor 拦截类

@Component("loggingRequestInterceptor")
public class LoggingRequestInterceptor implements ClientHttpRequestInterceptor {
     Logger log = LoggerFactory.getLogger(getClass());

    @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.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 {
        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.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=================================================");
    }
}