web-dev-qa-db-ja.com

RestTemplateでデータを取得するときに常に403を取得するのはなぜですか？

データを取得しようとしていますが、常にRestTemplateで403(Forbidden)を取得しています。

しかし、私が試してみるとorg.Apache.http.client.HttpClient代わりに、すべてが問題ありません。私のマシンのPostmanでデータを取得することもできます。

コードは非常に単純ですが、何が問題なのかわかりません。

public Object get() {
        try {
            RestTemplate restTemplate = new RestTemplate();
            Object result = restTemplate.getForObject("https://api.hearthstonejson.com/v1/19776/enUS/cards.json", Object.class);
            return result;
        } catch (Exception ex) {
            logger.error(ex.getMessage(), ex);
            return null;
        }
    }

編集：スタックトレースを追加

org.springframework.web.client.HttpClientErrorException: 403 Forbidden
    at org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.Java:63)
    at org.springframework.web.client.RestTemplate.handleResponse(RestTemplate.Java:700)
    at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.Java:653)
    at org.springframework.web.client.RestTemplate.execute(RestTemplate.Java:613)
    at org.springframework.web.client.RestTemplate.getForObject(RestTemplate.Java:287)
    at com.brawlstone.metaservice.service.SyncService.get(SyncService.Java:49)
    at com.brawlstone.metaservice.web.SyncController.getCards(SyncController.Java:30)
    at Sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at Sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.Java:62)
    at Sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.Java:43)
    at Java.lang.reflect.Method.invoke(Method.Java:498)
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.Java:205)
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.Java:133)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.Java:97)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.Java:827)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.Java:738)
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.Java:85)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.Java:967)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.Java:901)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.Java:970)
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.Java:861)
    at javax.servlet.http.HttpServlet.service(HttpServlet.Java:622)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.Java:846)
    at javax.servlet.http.HttpServlet.service(HttpServlet.Java:729)
    at org.Apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.Java:292)
    at org.Apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.Java:207)
    at org.Apache.Tomcat.websocket.server.WsFilter.doFilter(WsFilter.Java:52)
    at org.Apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.Java:240)
    at org.Apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.Java:207)
    at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.Java:99)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.Java:107)
    at org.Apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.Java:240)
    at org.Apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.Java:207)
    at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.Java:105)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.Java:107)
    at org.Apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.Java:240)
    at org.Apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.Java:207)
    at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.Java:81)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.Java:107)
    at org.Apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.Java:240)
    at org.Apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.Java:207)
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.Java:197)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.Java:107)
    at org.Apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.Java:240)
    at org.Apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.Java:207)
    at org.springframework.boot.web.support.ErrorPageFilter.doFilter(ErrorPageFilter.Java:115)
    at org.springframework.boot.web.support.ErrorPageFilter.access$000(ErrorPageFilter.Java:59)
    at org.springframework.boot.web.support.ErrorPageFilter$1.doFilterInternal(ErrorPageFilter.Java:90)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.Java:107)
    at org.springframework.boot.web.support.ErrorPageFilter.doFilter(ErrorPageFilter.Java:108)
    at org.Apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.Java:240)
    at org.Apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.Java:207)
    at org.Apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.Java:212)
    at org.Apache.catalina.core.StandardContextValve.invoke(StandardContextValve.Java:106)
    at org.Apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.Java:502)
    at org.Apache.catalina.core.StandardHostValve.invoke(StandardHostValve.Java:141)
    at org.Apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.Java:79)
    at org.Apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.Java:616)
    at org.Apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.Java:88)
    at org.Apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.Java:522)
    at org.Apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.Java:1095)
    at org.Apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.Java:672)
    at org.Apache.Tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.Java:2500)
    at org.Apache.Tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.Java:2489)
    at Java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.Java:1142)
    at Java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.Java:617)
    at org.Apache.Tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.Java:61)
    at Java.lang.Thread.run(Thread.Java:745)
javaspring-bootresttemplate
22
Kanjie Lu

リクエストに「User-Agent」ヘッダーを追加してみてください。

コードを次のように変更します。

try {
            RestTemplate restTemplate = new RestTemplate();
            HttpHeaders headers = new HttpHeaders();
            headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON));
            headers.add("user-agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36");
            HttpEntity<String> entity = new HttpEntity<String>("parameters", headers);

            Object response = restTemplate.exchange("https://api.hearthstonejson.com/v1/19776/enUS/cards.json", HttpMethod.GET,entity,Object.class);

            System.out.println(response);
        } catch (Exception ex) {
           ex.printStackTrace();

        }
23
Tanmay Delhikar

要求にSSL証明書を使用するようにhttpsを構成せずにRestTemplateにアクセスしようとしています

RestTemplateの次の構成を使用してみてください

CloseableHttpClient httpClient = HttpClients.custom()
                    .setSSLHostnameVerifier(new NoopHostnameVerifier())
                    .build();
HttpComponentsClientHttpRequestFactory requestFactory = new HttpComponentsClientHttpRequestFactory();
requestFactory.setHttpClient(httpClient);
RestTemplate restTemplate = new RestTemplate(requestFactory);
Object result = restTemplate.getForObject("https://api.hearthstonejson.com/v1/19776/enUS/cards.json", Object.class);
....
9
Zico