RestTemplate - postForObject 方法 - 在数据库中添加条目但给我 JsonParseException 异常
RestTemplate - postForObject method - adds entry in database but gives me JsonParseException exception
我正在尝试为我的电影服务器应用程序创建 RestTemplate 方法。 PostForObject 方法适用于我的实体 class（即它写入数据库）但在浏览器上它给了我巨大的异常堆栈跟踪。所有这些概念对我来说都是新的，我不知道为什么它会失败。
这是我的休息模板控制器class:-
包裹 com.skill.controller;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.skill.entity.Movie;
@RestController
public class MovieClientController {
@Value("${movie-service.baseurl}")
private String baseURL;
@RequestMapping(path = "/movies/add/",method=RequestMethod.GET)
public void addMovie() {
RestTemplate restTemplate = new RestTemplate();
HttpHeaders headers = new HttpHeaders();
headers.set("Content-Type", "application/json");
headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON));
Movie m1 = new Movie();
m1.setMno(23);
m1.setMname("Fan-4");
m1.setGenre("Fiction");
m1.setRating(1);
HttpEntity<Movie> entity = new HttpEntity<>(m1,headers);
Movie movie = restTemplate.
postForObject(baseURL+"/movies/add/", entity, Movie.class);
System.out.println("The movie id is: " + movie.getMno());
//ResponseEntity<Movie> response = restTemplate.
// exchange(baseURL+"/movies/add/",HttpMethod.POST, entity, Movie.class);
//return new ResponseEntity<Movie>(response.getBody(),HttpStatus.OK);
//return new ResponseEntity<String>("Movie 1 saved ", HttpStatus.ACCEPTED);
}
@RequestMapping(path = "/movies/")
public List<Movie> getAllMovies() {
RestTemplate restTemplate = new RestTemplate();
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_JSON);
HttpEntity<?> entity = new HttpEntity<>(headers);
ResponseEntity<Object[]> responseEntity =
restTemplate.getForEntity(baseURL+"/movies/", Object[].class);
Object[] objects = responseEntity.getBody();
ObjectMapper mapper = new ObjectMapper();
return Arrays.stream(objects)
.map(object -> mapper.convertValue(object, Movie.class))
.collect(Collectors.toList());
}
}
这是我的实体class
package com.skill.entity;
import java.io.Serializable;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.annotation.JsonProperty;
@JsonInclude(JsonInclude.Include.NON_NULL)
public class Movie implements Serializable {
// @Id
// @Column(name="mno")
@JsonProperty("mno")
private Integer mno;
// @Column(name="mname")
@JsonProperty("mname")
private String mname;
// @Column(name="rating")
@JsonProperty("rating")
private Integer rating;
// @Column(name="genre")
@JsonProperty("genre")
private String genre;
public Movie() {}
public Movie(Integer mno, String mname, Integer rating, String genre) {
super();
this.mno = mno;
this.mname = mname;
this.rating = rating;
this.genre = genre;
}
@JsonProperty("mno")
public Integer getMno() {
return mno;
}
@JsonProperty("mno")
public void setMno(Integer mno) {
this.mno = mno;
}
@JsonProperty("mname")
public String getMname() {
return mname;
}
@JsonProperty("mname")
public void setMname(String mname) {
this.mname = mname;
}
@JsonProperty("rating")
public Integer getRating() {
return rating;
}
@JsonProperty("rating")
public void setRating(Integer rating) {
this.rating = rating;
}
@JsonProperty("genre")
public String getGenre() {
return genre;
}
@JsonProperty("genre")
public void setGenre(String genre) {
this.genre = genre;
}
@Override
public String toString() {
return "Movie [mno=" + mno + ", mname=" + mname + ", rating=" + rating + ", genre=" + genre + "]";
}
}
这是我在电影服务器应用程序中的实际 post 方法。供参考：
//add single movie
@PostMapping(path = "/movies/add/",consumes="application/json")
public ResponseEntity<String> addMovie(@RequestBody Movie movie) {
Integer iRating = movieService.addMovie(movie);
if(iRating!=null)
{
return new ResponseEntity<String>("Movie saved with rating: " +iRating, HttpStatus.CREATED);
}
return new ResponseEntity<String>("Movie not saved", HttpStatus.NOT_ACCEPTABLE);
}
这是我在浏览器中执行 link 时得到的堆栈跟踪。
This application has no explicit mapping for /error, so you are seeing this as a fallback.
Wed Jun 16 19:38:55 IST 2021
There was an unexpected error (type=Internal Server Error, status=500).
Error while extracting response for type [class com.skill.entity.Movie] and content type [application/json]; nested exception is org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Unrecognized token 'Movie': was expecting (JSON String, Number, Array, Object or token 'null', 'true' or 'false'); nested exception is com.fasterxml.jackson.core.JsonParseException: Unrecognized token 'Movie': was expecting (JSON String, Number, Array, Object or token 'null', 'true' or 'false') at [Source: (PushbackInputStream); line: 1, column: 7]
org.springframework.web.client.RestClientException: Error while extracting response for type [class com.skill.entity.Movie] and content type [application/json]; nested exception is org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Unrecognized token 'Movie': was expecting (JSON String, Number, Array, Object or token 'null', 'true' or 'false'); nested exception is com.fasterxml.jackson.core.JsonParseException: Unrecognized token 'Movie': was expecting (JSON String, Number, Array, Object or token 'null', 'true' or 'false')
at [Source: (PushbackInputStream); line: 1, column: 7]
at org.springframework.web.client.HttpMessageConverterExtractor.extractData(HttpMessageConverterExtractor.java:120)
at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:778)
at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:711)
at org.springframework.web.client.RestTemplate.postForObject(RestTemplate.java:437)
at com.skill.controller.MovieClientController.addMovie(MovieClientController.java:51)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:197)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:141)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:894)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1063)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:626)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:96)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:893)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1707)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.base/java.lang.Thread.run(Thread.java:832)
Caused by: org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Unrecognized token 'Movie': was expecting (JSON String, Number, Array, Object or token 'null', 'true' or 'false'); nested exception is com.fasterxml.jackson.core.JsonParseException: Unrecognized token 'Movie': was expecting (JSON String, Number, Array, Object or token 'null', 'true' or 'false')
at [Source: (PushbackInputStream); line: 1, column: 7]
at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.readJavaType(AbstractJackson2HttpMessageConverter.java:389)
at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.read(AbstractJackson2HttpMessageConverter.java:342)
at org.springframework.web.client.HttpMessageConverterExtractor.extractData(HttpMessageConverterExtractor.java:105)
... 58 more
Caused by: com.fasterxml.jackson.core.JsonParseException: Unrecognized token 'Movie': was expecting (JSON String, Number, Array, Object or token 'null', 'true' or 'false')
at [Source: (PushbackInputStream); line: 1, column: 7]
at com.fasterxml.jackson.core.JsonParser._constructError(JsonParser.java:2337)
at com.fasterxml.jackson.core.base.ParserMinimalBase._reportError(ParserMinimalBase.java:720)
at com.fasterxml.jackson.core.json.UTF8StreamJsonParser._reportInvalidToken(UTF8StreamJsonParser.java:3593)
at com.fasterxml.jackson.core.json.UTF8StreamJsonParser._handleUnexpectedValue(UTF8StreamJsonParser.java:2688)
at com.fasterxml.jackson.core.json.UTF8StreamJsonParser._nextTokenNotInObject(UTF8StreamJsonParser.java:870)
at com.fasterxml.jackson.core.json.UTF8StreamJsonParser.nextToken(UTF8StreamJsonParser.java:762)
at com.fasterxml.jackson.databind.ObjectMapper._initForReading(ObjectMapper.java:4684)
at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4586)
at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3601)
at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.readJavaType(AbstractJackson2HttpMessageConverter.java:378)
... 60 more
您正在添加一个 Accept header，当您调用 postForObject 时，它将需要一个 JSON parse-able 实体 - 在您的例子中是电影。
headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON))
但是您的 post 方法 return 是一个字符串实体。
return 来自您的 post 方法的 Movie 实体，或者编辑您的消费者以期待一个 String 实体。
我正在尝试为我的电影服务器应用程序创建 RestTemplate 方法。 PostForObject 方法适用于我的实体 class（即它写入数据库）但在浏览器上它给了我巨大的异常堆栈跟踪。所有这些概念对我来说都是新的，我不知道为什么它会失败。
这是我的休息模板控制器class:- 包裹 com.skill.controller;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.skill.entity.Movie;
@RestController
public class MovieClientController {
@Value("${movie-service.baseurl}")
private String baseURL;
@RequestMapping(path = "/movies/add/",method=RequestMethod.GET)
public void addMovie() {
RestTemplate restTemplate = new RestTemplate();
HttpHeaders headers = new HttpHeaders();
headers.set("Content-Type", "application/json");
headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON));
Movie m1 = new Movie();
m1.setMno(23);
m1.setMname("Fan-4");
m1.setGenre("Fiction");
m1.setRating(1);
HttpEntity<Movie> entity = new HttpEntity<>(m1,headers);
Movie movie = restTemplate.
postForObject(baseURL+"/movies/add/", entity, Movie.class);
System.out.println("The movie id is: " + movie.getMno());
//ResponseEntity<Movie> response = restTemplate.
// exchange(baseURL+"/movies/add/",HttpMethod.POST, entity, Movie.class);
//return new ResponseEntity<Movie>(response.getBody(),HttpStatus.OK);
//return new ResponseEntity<String>("Movie 1 saved ", HttpStatus.ACCEPTED);
}
@RequestMapping(path = "/movies/")
public List<Movie> getAllMovies() {
RestTemplate restTemplate = new RestTemplate();
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_JSON);
HttpEntity<?> entity = new HttpEntity<>(headers);
ResponseEntity<Object[]> responseEntity =
restTemplate.getForEntity(baseURL+"/movies/", Object[].class);
Object[] objects = responseEntity.getBody();
ObjectMapper mapper = new ObjectMapper();
return Arrays.stream(objects)
.map(object -> mapper.convertValue(object, Movie.class))
.collect(Collectors.toList());
}
}
这是我的实体class
package com.skill.entity;
import java.io.Serializable;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.annotation.JsonProperty;
@JsonInclude(JsonInclude.Include.NON_NULL)
public class Movie implements Serializable {
// @Id
// @Column(name="mno")
@JsonProperty("mno")
private Integer mno;
// @Column(name="mname")
@JsonProperty("mname")
private String mname;
// @Column(name="rating")
@JsonProperty("rating")
private Integer rating;
// @Column(name="genre")
@JsonProperty("genre")
private String genre;
public Movie() {}
public Movie(Integer mno, String mname, Integer rating, String genre) {
super();
this.mno = mno;
this.mname = mname;
this.rating = rating;
this.genre = genre;
}
@JsonProperty("mno")
public Integer getMno() {
return mno;
}
@JsonProperty("mno")
public void setMno(Integer mno) {
this.mno = mno;
}
@JsonProperty("mname")
public String getMname() {
return mname;
}
@JsonProperty("mname")
public void setMname(String mname) {
this.mname = mname;
}
@JsonProperty("rating")
public Integer getRating() {
return rating;
}
@JsonProperty("rating")
public void setRating(Integer rating) {
this.rating = rating;
}
@JsonProperty("genre")
public String getGenre() {
return genre;
}
@JsonProperty("genre")
public void setGenre(String genre) {
this.genre = genre;
}
@Override
public String toString() {
return "Movie [mno=" + mno + ", mname=" + mname + ", rating=" + rating + ", genre=" + genre + "]";
}
}
这是我在电影服务器应用程序中的实际 post 方法。供参考：
//add single movie
@PostMapping(path = "/movies/add/",consumes="application/json")
public ResponseEntity<String> addMovie(@RequestBody Movie movie) {
Integer iRating = movieService.addMovie(movie);
if(iRating!=null)
{
return new ResponseEntity<String>("Movie saved with rating: " +iRating, HttpStatus.CREATED);
}
return new ResponseEntity<String>("Movie not saved", HttpStatus.NOT_ACCEPTABLE);
}
这是我在浏览器中执行 link 时得到的堆栈跟踪。
This application has no explicit mapping for /error, so you are seeing this as a fallback.
Wed Jun 16 19:38:55 IST 2021
There was an unexpected error (type=Internal Server Error, status=500).
Error while extracting response for type [class com.skill.entity.Movie] and content type [application/json]; nested exception is org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Unrecognized token 'Movie': was expecting (JSON String, Number, Array, Object or token 'null', 'true' or 'false'); nested exception is com.fasterxml.jackson.core.JsonParseException: Unrecognized token 'Movie': was expecting (JSON String, Number, Array, Object or token 'null', 'true' or 'false') at [Source: (PushbackInputStream); line: 1, column: 7]
org.springframework.web.client.RestClientException: Error while extracting response for type [class com.skill.entity.Movie] and content type [application/json]; nested exception is org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Unrecognized token 'Movie': was expecting (JSON String, Number, Array, Object or token 'null', 'true' or 'false'); nested exception is com.fasterxml.jackson.core.JsonParseException: Unrecognized token 'Movie': was expecting (JSON String, Number, Array, Object or token 'null', 'true' or 'false')
at [Source: (PushbackInputStream); line: 1, column: 7]
at org.springframework.web.client.HttpMessageConverterExtractor.extractData(HttpMessageConverterExtractor.java:120)
at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:778)
at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:711)
at org.springframework.web.client.RestTemplate.postForObject(RestTemplate.java:437)
at com.skill.controller.MovieClientController.addMovie(MovieClientController.java:51)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:197)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:141)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:894)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1063)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:626)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:96)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:893)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1707)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.base/java.lang.Thread.run(Thread.java:832)
Caused by: org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Unrecognized token 'Movie': was expecting (JSON String, Number, Array, Object or token 'null', 'true' or 'false'); nested exception is com.fasterxml.jackson.core.JsonParseException: Unrecognized token 'Movie': was expecting (JSON String, Number, Array, Object or token 'null', 'true' or 'false')
at [Source: (PushbackInputStream); line: 1, column: 7]
at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.readJavaType(AbstractJackson2HttpMessageConverter.java:389)
at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.read(AbstractJackson2HttpMessageConverter.java:342)
at org.springframework.web.client.HttpMessageConverterExtractor.extractData(HttpMessageConverterExtractor.java:105)
... 58 more
Caused by: com.fasterxml.jackson.core.JsonParseException: Unrecognized token 'Movie': was expecting (JSON String, Number, Array, Object or token 'null', 'true' or 'false')
at [Source: (PushbackInputStream); line: 1, column: 7]
at com.fasterxml.jackson.core.JsonParser._constructError(JsonParser.java:2337)
at com.fasterxml.jackson.core.base.ParserMinimalBase._reportError(ParserMinimalBase.java:720)
at com.fasterxml.jackson.core.json.UTF8StreamJsonParser._reportInvalidToken(UTF8StreamJsonParser.java:3593)
at com.fasterxml.jackson.core.json.UTF8StreamJsonParser._handleUnexpectedValue(UTF8StreamJsonParser.java:2688)
at com.fasterxml.jackson.core.json.UTF8StreamJsonParser._nextTokenNotInObject(UTF8StreamJsonParser.java:870)
at com.fasterxml.jackson.core.json.UTF8StreamJsonParser.nextToken(UTF8StreamJsonParser.java:762)
at com.fasterxml.jackson.databind.ObjectMapper._initForReading(ObjectMapper.java:4684)
at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4586)
at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3601)
at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.readJavaType(AbstractJackson2HttpMessageConverter.java:378)
... 60 more
您正在添加一个 Accept header，当您调用 postForObject 时，它将需要一个 JSON parse-able 实体 - 在您的例子中是电影。 headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON))
但是您的 post 方法 return 是一个字符串实体。
return 来自您的 post 方法的 Movie 实体，或者编辑您的消费者以期待一个 String 实体。