404 Fehler mit RestTemplate

Question

Ich habe [Spring-Boot Rest API] und [Go Rest API] in der folgenden Konfiguration verknüpft. Obwohl der Dienst des Ziel-URI existiert, beabsichtige ich eine Verbindung mit RestTemplate in einer kommunikationsfähigen Umgebung herzustellen, aber irgendwie ist es ein 404-Fehler.

• [Client] < - (1) -> [Frühling-Boot-REST-API] < - (2) -> [Go-REST-API] < - (3) -> [ DB]

• [Klient] < --------------------------------- (2) -> [Go Rast API] < - (3) -> [DB]

Zu allererst Kommunikation (2) normal ist

Der Rest-Dienst von [Go Rest API] ist über das Terminal mit dem folgenden cURL-Befehl verfügbar.

$ curl http://localhost:18000/ping -X GET 
% Total % Received % Xferd Average Speed Time Time  Time Current 
          Dload Upload Total Spent Left Speed 
100 120 100 120 0  0 480  0 --:--:-- --:--:-- --:--:-- 591 
{"pong":"ok","meta":{"host":"622c72386c52","rid":"","StartTime":"2017-05-31T06:33:37.654710044Z","execute_time":0.0061}} 

Ich mag würde den [Frühling-Boot-REST-API] auf der Vorderseite haben und die RestTemplate verwenden intern die oben genannte URL zuzugreifen. Es wurde wie folgt codiert.

@RequestMapping(value = "/ping/", method = RequestMethod.POST) 
public final ResponseEntity<ResPongDto> ping(@RequestBody SalesSituationInquiries input) { 

    String methodName = Thread.currentThread().getStackTrace()[1].getMethodName(); 
    this.logger.info("■■UT:[{}]disposalDate:{} ", methodName,input.getDisposalDate()); 
    // ①To Client Response:ResPongDto 
    HttpHeaders headers = new HttpHeaders(); 
    headers.setContentType(MediaType.APPLICATION_JSON); 

    // ②From Client Request:SalesSituationInquiries 
    this.logger.info("■■UT:[{}] From: {} To: {}", methodName,TotalSalesUtil.getStrFromByTo(input.getDisposalDate().toString()),input.getDisposalDate().toString()); 
    this.logger.info("■■UT:[{}] URL: {}", methodName,DailyReportsUtil.API_GO_PING_URL); 
    restTemplate.getMessageConverters().add(new MappingJackson2HttpMessageConverter()); 

    // ③To Go Rest API Request:null 
    // ④From Go Rest API Response:ResPongDto 
    ResponseEntity<ResPongDto> resultGoMonth = restTemplate.exchange(
      TotalSalesUtil.createTotalSalesUrl(DailyReportsUtil.API_GO_PING_URL, "", "") 
      , HttpMethod.GET 
      , new HttpEntity<>(null) 
      , ResPongDto.class); 
    this.logger.info("■■UT:[{}] testRestTemplate.exchange(): ", methodName); 

    result = new ResponseEntity<ResPongDto>(resultGoMonth.getBody(), headers, HttpStatus.CREATED); 
    return result; 
} 

(2) über (1) Leider ist das Ergebnis ein Fehler 404.

2017-05-31 15:35:43.190 [maekawa-PC-main]     INFO Exp:[id: tenant_id:] j.c.b.b.a.BlCloudApplication Started BlCloudApplication in 5.61 seconds (JVM running for 10.472) 
2017-05-31 15:38:50.700 [maekawa-PC-http-nio-9999-exec-1] WARN Exp:[id: tenant_id:] j.c.b.b.a.i.YamlAuthenticationProcessingMockInterceptor YamlAuthenticationProcessingMockInterceptor:モック機能が動作しています。 
2017-05-31 15:38:50.767 [maekawa-PC-http-nio-9999-exec-1] INFO Exp:[id: tenant_id:] j.c.b.b.m.r.a.TotalSalesStatusCommandService ■■UT:[ping]disposalDate:2017-04-03 
2017-05-31 15:38:50.770 [maekawa-PC-http-nio-9999-exec-1] INFO Exp:[id: tenant_id:] j.c.b.b.m.r.a.TotalSalesStatusCommandService ■■UT:[ping] From: 2017-04-01 To: 2017-04-03 
2017-05-31 15:38:50.770 [maekawa-PC-http-nio-9999-exec-1] INFO Exp:[id: tenant_id:] j.c.b.b.m.r.a.TotalSalesStatusCommandService ■■UT:[ping] URL: http://localhost:18000/ping 
2017-05-31 15:38:50.868 [maekawa-PC-http-nio-9999-exec-1] ACS Exp:[id: tenant_id:] url:/api/v1/totalsalesstatus/ping/ status:200 elapsedNanoTime:146217390 
2017-05-31 15:38:50.871 [maekawa-PC-http-nio-9999-exec-1] ERROR o.a.c.c.C.[.[.[.[dispatcherServlet] Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing 
failed; nested exception is org.springframework.web.client.HttpClientErrorException: 404 Not Found] with root cause 

org.springframework.web.client.HttpClientErrorException: 404 Not Found 
    at org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:91) 
    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.exchange(RestTemplate.java:531) 
    at jp.co.broadleaf.blcloud.management.report.api.TotalSalesStatusCommandService.ping(TotalSalesStatusCommandService.java:90) 
    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:116) 
    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:963) 
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897) 
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) 
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:648) 
    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:230) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) 
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) 
    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:192) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) 
    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:192) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) 
    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:192) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) 
    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:192) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) 
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:474) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) 
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) 
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349) 
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:783) 
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) 
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:798) 
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1434) 
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) 
    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) 

Hinweis:

(2) curl http://localhost:18000/ping -X GET

(1) curl http://localhost:9999/api/v1/totalsalesstatus/ping/ -X POST -H "Content-Type: application/json" -d ‚{" blTenantId ":" 1234 "," disposalDate ":" 2017-04-03 "} '

Ich weiß nicht, warum sie nicht mit cURL kommunizieren, also bitte helfen Sie mir.

Answer 1

Versuchen Sie den folgenden Code. Diese consumes Anwendung/JSON als Körper und produces der JSON-Antwort.

@RequestMapping(value = "/ping", method = RequestMethod.POST, produces = "application/json", consumes = "application/json") 
public final ResponseEntity<ResPongDto> ping(@RequestBody SalesSituationInquiries input) { 
    .. 
} 

Answer 2

Haben Sie statt exchange mit getForEntity versucht?

ResponseEntity<ResPongDto> resultGoMonth = restTemplate.getForEntity(
     TotalSalesUtil.createTotalSalesUrl(DailyReportsUtil.API_GO_PING_URL, "", "") 
     , ResPongDto.class); 

Ich denke, Ihr Problem ist, dass Sie nicht die richtigen Header setzen. Sie könnten versuchen, den Accept-Header zur Anfrage hinzuzufügen.

final HttpHeaders httpHeaders = new HttpHeaders(); 
httpHeaders.setAccept(Arrays.asList(MediaType.APPLICATION_JSON)); 

HttpEntity entity = new HttpEntity(headers); 
ResponseEntity<ResPongDto> resultGoMonth = restTemplate.exchange(
      TotalSalesUtil.createTotalSalesUrl(DailyReportsUtil.API_GO_PING_URL, "", ""), 
      HttpMethod.GET, 
      entity, 
      ResPongDto.class); 

Dieser Code wurde nicht getestet. Es ist nur ein Beispiel.

Übrigens, ich weiß nicht, wie Sie das restemplate-Objekt erstellen, aber Sie sollten die Konverter nicht aktualisieren. Es sollte nur am Initialisierungspunkt gemacht werden, da resttemplate nach der Erstellung nicht mehr Thread-sicher sind.