500内部服务器错误:对象引用未设置为对象的实例。使用springboot restTemplate发布请求

问题描述 投票:0回答:1
public Object get(String restUrl, String obj){
       HttpHeaders headers = new HttpHeaders();
       headers.setAccept(Arrays.asList(MediaType.APPLICATION_XML));
       headers.setContentType(MediaType.APPLICATION_XML);
       HttpEntity<String> requestEntity = new HttpEntity<>(obj,headers);
       return  restTemplate.postForObject(restUrl,requestEntity,String.class);
   }

错误:

org.springframework.web.client.HttpServerErrorException $ InternalServerError:500内部服务器错误:[发生错误。 Details =对象引用未设置为对象的实例。]在org.springframework.web.client.HttpServerErrorException.create(HttpServerErrorException.java:100)〜[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]在org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:172)〜[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]在org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:112)〜[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]在org.springframework.web.client.ResponseErrorHandler.handleError(ResponseErrorHandler.java:63)〜[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]在org.springframework.web.client.RestTemplate.handleResponse(RestTemplate.java:782)〜[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]在org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:740)〜[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]在org.springframework.web.client.RestTemplate.execute(RestTemplate.java:674)〜[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]在org.springframework.web.client.RestTemplate.postForObject(RestTemplate.java:449)〜[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]在com.abc.xyz.service.test.client.RestClient.get(RestClient.java:34)〜[classes /:na]在com.abc.xyz.service.test.services.DataService.getData(DataService.java:40)〜[classes /:na]在com.abc.xyz.service.test.controller.DataController.getData(DataController.java:40)〜[classes /:na]在java.base / jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(本机方法)〜[na:na]在java.base / jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)〜[na:na]在java.base / jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)〜[na:na]在java.base / java.lang.reflect.Method.invoke(Method.java:566)〜[na:na]在org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190)〜[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]在org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)〜[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]在org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106)〜[spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE]在org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:879)〜[spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE]在org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:793)〜[spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE]在org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)〜[spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE]在org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040)〜[spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE]在org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943)〜[spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE]在org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)〜[spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE]在org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)〜[spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE]在javax.servlet.http.HttpServlet.service(HttpServlet.java:634)〜[tomcat-embed-core-9.0.31.jar:9.0.31]在org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)〜[spring-webmvc-5.2.4.RELEASE.jar:5.2.4.RELEASE]在javax.servlet.http.HttpServlet.service(HttpServlet.java:741)〜[tomcat-embed-core-9.0.31.jar:9.0.31]在org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)〜[tomcat-embed-core-9.0.31.jar:9.0.31]在org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)〜[tomcat-embed-core-9.0.31.jar:9.0.31]在org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)〜[tomcat-embed-websocket-9.0.31.jar:9.0.31]在org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)〜[tomcat-embed-core-9.0.31.jar:9.0.31]在org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)〜[tomcat-embed-core-9.0.31.jar:9.0.31]在org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)〜[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]在org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)〜[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]在org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)〜[tomcat-embed-core-9.0.31.jar:9.0.31]在org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)〜[tomcat-embed-core-9.0.31.jar:9.0.31]在org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)〜[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]在org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)〜[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]在org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)〜[tomcat-embed-core-9.0.31.jar:9.0.31]在org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)〜[tomcat-embed-core-9.0.31.jar:9.0.31]在org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)〜[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]在org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)〜[spring-web-5.2.4.RELEASE.jar:5.2.4.RELEASE]在org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)〜[tomcat-embed-core-9.0.31.jar:9.0.31]在org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)〜[tomcat-embed-core-9.0.31.jar:9.0.31]在org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)〜[tomcat-embed-core-9.0.31.jar:9.0.31]在org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)〜[tomcat-embed-core-9.0.31.jar:9.0.31]在org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)〜[tomcat-embed-core-9.0.31.jar:9.0.31]在org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)〜[tomcat-embed-core-9.0.31.jar:9.0.31]在org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)〜[tomcat-embed-core-9.0.31.jar:9.0.31]在org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)〜[tomcat-embed-core-9.0.31.jar:9.0.31]在org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)〜[tomcat-embed-core-9.0.31.jar:9.0.31]在org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:367)〜[tomcat-embed-core-9.0.31.jar:9.0.31]在org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)〜[tomcat-embed-core-9.0.31.jar:9.0.31]在org.apache.coyote.AbstractProtocol $ ConnectionHandler.process(AbstractProtocol.java:868)〜[tomcat-embed-core-9.0.31.jar:9.0.31]在org.apache.tomcat.util.net.NioEndpoint $ SocketProcessor.doRun(NioEndpoint.java:1639)〜[tomcat-embed-core-9.0.31.jar:9.0.31]在org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)〜[tomcat-embed-core-9.0.31.jar:9.0.31]在java.base / java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)〜[na:na]在java.base / java.util.concurrent.ThreadPoolExecutor $ Worker.run(ThreadPoolExecutor.java:628)〜[na:na]在org.apache.tomcat.util.threads.TaskThread $ WrappingRunnable.run(TaskThread.java:61)〜[tomcat-embed-core-9.0.31.jar:9.0.31]在java.base / java.lang.Thread.run(Thread.java:834)〜[na:na]这里obj是XML请求对象。

当我使用邮递员发出请求时,obj(xml请求对象)可以正常工作。

谢谢你。

xml resttemplate
1个回答
0
投票

我碰到同样的问题。因为这似乎是服务器端错误,并且Spring巧妙地将http错误代码视为异常,并假定您的异常处理代码具有处理错误的上下文。

    try {
        return restTemplate.exchange(url, httpMethod, httpEntity, String.class);
    } catch (HttpStatusCodeException e) {
        // handle exception as needed or return ResponseEntity as below commented

        // return ResponseEntity.status(e.getRawStatusCode()).headers(e.getResponseHeaders()).body(e.getResponseBodyAsString());

    }
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