通过Rest客户端

Question

通过Rest客户端

更新模型元数据信息的方法

我的要求是基于一个密钥进行PUT操作，而我正在为我的模型发送请求参数，这里是ProjectMetadata。

@RequestMapping(value = "/api/di/v1/app/{projectKey}/metadata", method = RequestMethod.PUT, consumes = "application/json")
public ResponseEntity<?> updateProject(@PathVariable(value = "projectKey") 
String projectKey,
        @RequestBody ProjectMetadata metadata) throws JSONException {

    HttpHeaders headers = new HttpHeaders();
    headers.setContentType(MediaType.APPLICATION_JSON);
    headers.add("Authorization", "Basic <aut key>");

    JSONObject requestBody = new JSONObject();
    requestBody.put("label", metadata.getLabel());
    requestBody.put("description", metadata.getDescription());
    requestBody.put("shortDesc", metadata.getShortDesc());
    requestBody.put("tag", metadata.getTags());
    logger.debug("requestBody" + requestBody);

    HttpEntity<String> requestEntity = new HttpEntity<String>(requestBody.toString(), headers);
    logger.debug("requestentity" + requestEntity.toString());

    RestTemplate restTemplate = new RestTemplate();
    String url = "http://<>/public/api/projects/{projectKey}/metadata";
    logger.debug("trying to send request to create project");
    ResponseEntity<?> createResponse = null;

    try {
        createResponse = restTemplate.exchange(url, HttpMethod.PUT, requestEntity, String.class, projectKey);
        // restTemplate.put(url, requestEntity,projectKey);
    } catch (HttpClientErrorException e) {

        logger.error("Exceptions occurred while processing the request::");
        return new ResponseEntity<String>(e.getResponseBodyAsString(), HttpStatus.BAD_REQUEST);
    }
    return createResponse;
}

ProjectMetadata Model

public class ProjectMetadata 
{
   private String label;
   private String description;
   private String shortDesc;
   private List<String> tags;

   public ProjectMetadata() {
       super();
   }
   public ProjectMetadata(String label, String description, String shortDesc, List<String> tags) {
       super();
       this.label = label;
       this.description = description;
       this.shortDesc = shortDesc;
       this.tags = tags;
   }
   public String getLabel() {
       return label;
   }
   public void setLabel(String label) {
       this.label = label;
   }
   public String getDescription() {
       return description;
   }
   public void setDescription(String description) {
       this.description = description;
   }
   public String getShortDesc() {
       return shortDesc;
   }
   public void setShortDesc(String shortDesc) {
       this.shortDesc = shortDesc;
   }
   public List<String> getTags() {
       return tags;
   }
   public void setTags(List<String> tags) {
       this.tags = tags;
   }

}

错误堆栈

>2018-04-10 11:48:00,342 11345 [http-nio-9080-exec-1] DEBUG o.s.core.annotation.AnnotationUtils - Failed to meta-introspect annotation [interface org.springframework.web.bind.annotation.RequestBody]: java.lang.NullPointerException
2018-04-10 11:48:00,350 11353 [http-nio-9080-exec-1] DEBUG c.p.controller.ProjectController - requestBody{"description":"adsfy","shortDesc":"nsfdf","label":"testapp","tag":["tag12"]}
2018-04-10 11:48:00,354 11357 [http-nio-9080-exec-1] DEBUG c.p.controller.ProjectController - requestentity<{"description":"adsfy","shortDesc":"nsfdf","label":"testapp","tag":["tag12"]},{Content-Type=[application/json], Authorization=[Basic <>]}>
2018-04-10 11:48:00,366 11369 [http-nio-9080-exec-1] DEBUG c.p.controller.ProjectController - trying to send request to create project
2018-04-10 11:48:00,394 11397 [http-nio-9080-exec-1] DEBUG o.s.web.client.RestTemplate - Created PUT request for "http://<>/public/api/projects/abcde/metadata"
2018-04-10 11:48:00,394 11397 [http-nio-9080-exec-1] DEBUG o.s.web.client.RestTemplate - Setting request Accept header to [text/plain, application/json, application/*+json, */*]
2018-04-10 11:48:00,394 11397 [http-nio-9080-exec-1] DEBUG o.s.web.client.RestTemplate - Writing [{"description":"adsfy","shortDesc":"nsfdf","label":"testapp","tag":["tag12"]}] as "application/json" using [org.springframework.http.converter.StringHttpMessageConverter@6c0f36de]
2018-04-10 11:48:00,954 11957 [http-nio-9080-exec-1] DEBUG o.s.web.client.RestTemplate - PUT request for "http://<>/public/api/projects/abcde/metadata" resulted in 500 (Server Error); invoking error handler
2018-04-10 11:48:00,954 11957 [http-nio-9080-exec-1] DEBUG o.s.w.s.m.m.a.ExceptionHandlerExceptionResolver - Resolving exception from handler [public org.springframework.http.ResponseEntity<?> com.project.controller.ProjectController.updateProject(java.lang.String,com.model.project.ProjectMetadata) throws org.json.JSONException]: org.springframework.web.client.HttpServerErrorException: 500 Server Error
2018-04-10 11:48:00,958 11961 [http-nio-9080-exec-1] DEBUG o.s.w.s.m.a.ResponseStatusExceptionResolver - Resolving exception from handler [public org.springframework.http.ResponseEntity<?> com.project.controller.ProjectController.updateProject(java.lang.String,com.model.project.ProjectMetadata) throws org.json.JSONException]: org.springframework.web.client.HttpServerErrorException: 500 Server Error
2018-04-10 11:48:00,958 11961 [http-nio-9080-exec-1] DEBUG o.s.w.s.m.s.DefaultHandlerExceptionResolver - Resolving exception from handler [public org.springframework.http.ResponseEntity<?> com.project.controller.ProjectController.updateProject(java.lang.String,com.model.project.ProjectMetadata) throws org.json.JSONException]: org.springframework.web.client.HttpServerErrorException: 500 Server Error
2018-04-10 11:48:00,962 11965 [http-nio-9080-exec-1] DEBUG o.s.web.servlet.DispatcherServlet - Could not complete request
org.springframework.web.client.HttpServerErrorException: 500 Server Error
    at org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:97)
    at org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:79)
    at org.springframework.web.client.ResponseErrorHandler.handleError(ResponseErrorHandler.java:63)
    at org.springframework.web.client.RestTemplate.handleResponse(RestTemplate.java:777)
    at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:730)
    at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:686)
    at org.springframework.web.client.RestTemplate.exchange(RestTemplate.java:602)
    at com.project.controller.ProjectController.updateProject(ProjectController.java:120)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:209)
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:870)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:776)
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:991)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:978)
    at org.springframework.web.servlet.FrameworkServlet.doPut(FrameworkServlet.java:892)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:664)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:855)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    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:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    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:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:496)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803)
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459)
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Unknown Source)
2018-04-10 11:48:00,962 11965 [http-nio-9080-exec-1] DEBUG o.s.b.w.s.f.OrderedRequestContextFilter - Cleared thread-bound request context: org.apache.catalina.connector.RequestFacade@440e2d74
2018-04-10 11:48:00,966 11969 [http-nio-9080-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.HttpServerErrorException: 500 Server Error] with root cause
org.springframework.web.client.HttpServerErrorException: 500 Server Error
    at org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:97)
    at org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:79)
    at org.springframework.web.client.ResponseErrorHandler.handleError(ResponseErrorHandler.java:63)
    at org.springframework.web.client.RestTemplate.handleResponse(RestTemplate.java:777)
    at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:730)
    at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:686)
    at org.springframework.web.client.RestTemplate.exchange(RestTemplate.java:602)
    at com.project.controller.ProjectController.updateProject(ProjectController.java:120)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:209)
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:870)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:776)
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:991)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:978)
    at org.springframework.web.servlet.FrameworkServlet.doPut(FrameworkServlet.java:892)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:664)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:855)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    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:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    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:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:496)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803)
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459)
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Unknown Source)
2018-04-10 11:48:00,970 11973 [http-nio-9080-exec-1] DEBUG o.s.web.servlet.DispatcherServlet - DispatcherServlet with name 'dispatcherServlet' processing PUT request for [/error]
2018-04-10 11:48:00,970 11973 [http-nio-9080-exec-1] DEBUG o.s.w.s.m.m.a.RequestMappingHandlerMapping - Looking up handler method for path /error
2018-04-10 11:48:00,974 11977 [http-nio-9080-exec-1] DEBUG o.s.w.s.m.m.a.RequestMappingHandlerMapping - Returning handler method [public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController.error(javax.servlet.http.HttpServletRequest)]
2018-04-10 11:48:00,974 11977 [http-nio-9080-exec-1] DEBUG o.s.b.f.s.DefaultListableBeanFactory - Returning cached instance of singleton bean 'basicErrorController'
2018-04-10 11:48:01,006 12009 [http-nio-9080-exec-1] DEBUG o.s.w.s.m.m.a.HttpEntityMethodProcessor - Written [{timestamp=Tue Apr 10 11:48:00 IST 2018, status=500, error=Internal Server Error, message=500 Server Error, path=/rfi/api/di/v1/app/abcde/metadata/}] as "application/json" using [org.springframework.http.converter.json.MappingJackson2HttpMessageConverter@4e9658b5]
2018-04-10 11:48:01,006 12009 [http-nio-9080-exec-1] DEBUG o.s.web.servlet.DispatcherServlet - Null ModelAndView returned to DispatcherServlet with name 'dispatcherServlet': assuming HandlerAdapter completed request handling
2018-04-10 11:48:01,006 12009 [http-nio-9080-exec-1] DEBUG o.s.web.servlet.DispatcherServlet - Successfully completed request

导致此错误的原因是什么？请帮助

request and response image

headers

request

Answer 1

错误与您的代码无关。从您正在呼叫的外部服务返回500错误。尝试使用邮递员等其他客户端调用您的外部服务，以确保该服务按照您使用它的方式工作。

基于我们在评论中的对话。您的代码与邮递员请求的屏幕截图之间唯一不同的是，{＆＃34;标签中缺少s＆＃34; （在你的问题代码中你写了＃34;标记＆＃34;而不是＆＃34;标记＆＃34;）

PUT请求导致500（服务器错误）;调用错误处理程序

通过Rest客户端

ProjectMetadata Model

错误堆栈

1 个答案: