我在以下配置中链接了[Spring-Boot Rest API]和[Go Rest API]。 虽然目标URI的服务存在，但我打算在可通信的环境中使用RestTemplate进行连接，但不知何故它是404错误。
[客户]＆lt; - （1） - ＆gt; [Spring-Boot Rest API]＆lt; - （2） - ＆gt; [Go Rest API]＆lt; - （3） - ＆GT; [dB]的
[客户]＆LT; ---------------------------------（2） - ＆GT ; [Go Rest API]＆lt; - （3） - ＆gt; [DB]
首先，沟通（2）是正常的
终端可以使用以下cURL命令获取[Go Rest API]的Rest服务。
$ 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}}
我想在正面使用[Spring-Boot Rest API]并在内部使用RestTemplate来访问上述URL。 编码如下。
@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）via（1） 不幸的是，结果是404错误。
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)
注意：
（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”} “
我不知道为什么他们不与cURL沟通，所以请帮助我。
答案 0 :(得分：1)
您是否尝试过使用getForEntity代替exchange？
ResponseEntity<ResPongDto> resultGoMonth = restTemplate.getForEntity(
TotalSalesUtil.createTotalSalesUrl(DailyReportsUtil.API_GO_PING_URL, "", "")
, ResPongDto.class);
我猜你的问题是你没有设置正确的标题。您可以尝试将accept标头添加到请求中。
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);
此代码尚未经过测试。这只是一个例子。
顺便说一句，我不知道你是如何创建resttemplate对象的，但你不应该更新转换器。它应该只在初始化点完成，因为resttemplate一旦创建就不是线程安全的。
答案 1 :(得分：0)
尝试以下代码。这个consumes application / json为body，produces为json响应。
@RequestMapping(value = "/ping", method = RequestMethod.POST, produces = "application/json", consumes = "application/json")
public final ResponseEntity<ResPongDto> ping(@RequestBody SalesSituationInquiries input) {
..
}
答案 2 :(得分：0)
尝试一下。我也遇到了同样的错误。该问题是由于编码错误引起的。
lr = 0.1答案 3 :(得分：0)
我为这个异常付出了很多努力，即使URL是绝对正确的，相对URL也适用于POST请求。 404表示由于查询参数或请求参数或路径参数，在RestTemplate或HttpRequest中为GET类型方法指定的URL 不正确。原因查询/路径参数的值包含转换或解释不同的特殊字符。说 queryParams是email=test@xyz.com，已转换为email = test20％xyz41％.com
解决方案：传递查询/路径参数时进行解码。
在服务器端添加以下代码[控制器代码]
ServerSide [Controller]：
import java.net.URLDecoder;
import java.net.URLEncoder;
String encodedEmail = URLDecoder.decode(email, "UTF-8");
这是完美的工作和经过测试的代码。