[英]Getting failed to read HTTP message, while trying to use put with resttemplate
I am learning spring boot. 我正在学习弹簧靴。 And while updating a rest service below with resttemplate
并且在使用resttemplate更新以下休息服务时
RestTemplate restTemplate = new RestTemplate();
// restTemplate.getMessageConverters().add(new MappingJackson2HttpMessageConverter());
// restTemplate.getMessageConverters().add(new StringHttpMessageConverter());
HttpHeaders httpHeaders = restTemplate.headForHeaders("http://localhost:8080/getallblade");
List<HttpMessageConverter<?>> messageConverters = new ArrayList<HttpMessageConverter<?>>();
messageConverters.add(new FormHttpMessageConverter());
messageConverters.add(new StringHttpMessageConverter());
MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();
converter.setSupportedMediaTypes(Arrays.asList(MediaType.ALL));
messageConverters.add(new MappingJackson2XmlHttpMessageConverter());
messageConverters.add(converter);
restTemplate.setMessageConverters(messageConverters);
BladeView blade = new BladeView();
blade.setBladeId(id);
blade.setAppStatus(false);
blade.setOperStatus(false);
blade.setPowerStatus(powerstatus);
HttpEntity<BladeView> requestUpdate = new HttpEntity<>(blade, httpHeaders);
restTemplate.exchange("http://localhost:8080"+"/addd", HttpMethod.PUT, requestUpdate, Void.class);
I have tried many version of the above code with put instead of exchange but getting the same error as below: 我尝试使用put而不是exchange来尝试上述代码的许多版本,但得到的错误如下:
Failed to read HTTP message: org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Can not deserialize instance of java.util.ArrayList out of START_OBJECT token; nested exception is com.fasterxml.jackson.databind.JsonMappingException: Can not deserialize instance of java.util.ArrayList out of START_OBJECT token
at [Source: java.io.PushbackInputStream@696b5835; line: 1, column: 1]
org.springframework.web.client.HttpClientErrorException: 400 null
...................
at org.springframework.web.client.RestTemplate.exchange(RestTemplate.java:539)
at com.rhevm.server.COTSSERVER.updatePowerStatus(COTSSERVER.java:102)
These are my controller,services and model 这些是我的控制器,服务和模型
@RequestMapping(value="/addd",method=RequestMethod.PUT,consumes = "application/json", produces = "application/json")
public void add(@RequestBody List<BladeView> bladeView) {
System.out.println(bladeView);
bladeViewService.add(bladeView);
}
public void add(List<BladeView> bladeView) {
baldeViewRepository.save(bladeView);
}
@Entity
@Table(name="bladeview")
public class BladeView {
@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
private Integer bladeId;
Could you please guide as I am not able to solve this from days. 请问您能不能提供指导,因为几天后我将无法解决此问题。
you can go throw like this 你可以这样扔
HttpHeaders httpHeaders = restTemplate.headForHeaders("http://localhost:8080/getallblade");
headers.setContentType(MediaType.APPLICATION_JSON);
HttpEntity<String> entity = new HttpEntity<String>(jsonRequest, headers);
BladeView blade = new BladeView();
blade.setBladeId(id);
blade.setAppStatus(false);
blade.setOperStatus(false);
blade.setPowerStatus(powerstatus);
ArrayList<BladeView> list = new ArrayList();
list.add(blade)
ObjectMapper om = new ObjectMapper();
String jsonRequest = jsonObjectMapper.writeValueAsString(blade);
restTemplate.put(uri, entity);
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