我正在使用 RestTemplate 并且在反序列化对象时遇到问题。这就是我正在做的事情。JSON 响应看起来像，
{
"response": {
"Time": "Wed 2013.01.23 at 03:35:25 PM UTC",
"Total_Input_Records": 5,
},-
"message": "Succeeded",
"code": "200"
}
使用jsonschema2pojo将此 Json 有效负载转换为 POJO
public class MyClass {
@JsonProperty("response")
private Response response;
@JsonProperty("message")
private Object message;
@JsonProperty("code")
private Object code;
private Map<String, Object> additionalProperties = new HashMap<String, Object>();
//bunch of getters and setters here
}
public class Response {
@JsonProperty("Time")
private Date Time;
@JsonProperty("Total_Input_Records")
private Object Total_Input_Records;
private Map<String, Object> additionalProperties = new HashMap<String, Object>();
//bunch of getters and setters here
}
这是我遇到异常的请求处理，
String url = "http://example.com/someparams";
RestTemplate template = new RestTemplate(
new HttpComponentsClientHttpRequestFactory());
FormHttpMessageConverter converter = new FormHttpMessageConverter();
List<MediaType> mediaTypes = new ArrayList<MediaType>();
mediaTypes.add(new MediaType("application", "x-www-form-urlencoded"));
converter.setSupportedMediaTypes(mediaTypes);
template.getMessageConverters().add(converter);
MyClass upload = template.postForObject(url, null, MyClass.class);
这是令人沮丧的部分，异常（故意修剪，不完整）。有什么我想念的吗？
org.springframework.http.converter.HttpMessageNotReadableException: Could not read JSON: Unrecognized field "Time" (Class com.temp.pointtests.Response), not marked as ignorable
at [Source: org.apache.http.conn.EofSensorInputStream@340ae1cf; line: 1, column: 22 (through reference chain: com.temp.pointtests.MyClass["response"]->com.temp.pointtests.Response["Time"]);]
+++++更新已解决++++++
我看到 Spring 添加了使用 Jackson 2 的 MappingJackson2HttpMessageConverter。因为我上面的代码中的 MappingJacksonHttpMessageConverter 使用 Jackson Pre2.0 版本并且它不起作用。但是它适用于杰克逊 2.0。随着 MappingJackson2HttpMessageConverter 现在可用，我现在可以将它添加到我的 RestTemplate 并且一切正常:-)。这是有相同问题的人的代码，
String url = "http://example.com/someparams";
RestTemplate template = new RestTemplate();
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED);
HttpEntity request = new HttpEntity(headers);
List<HttpMessageConverter<?>> messageConverters = new ArrayList<HttpMessageConverter<?>>();
MappingJackson2HttpMessageConverter map = new MappingJackson2HttpMessageConverter();
messageConverters.add(map);
messageConverters.add(new FormHttpMessageConverter());
template.setMessageConverters(messageConverters);
MyClass msg = template.postForObject(url, request, MyClass.class);