我的问题很简单,我有一个spring boot控制器,它可以记录如下对象:
@RequestMapping(value = "/contracts/{id}/milestones", method = RequestMethod.PUT, headers = "Accept=application/json")
@ResponseBody
@Transactional
public ResponseEntity<?> updateContractMilestones(@PathVariable("id") String contractId,
@DTO(MilestoneUpdateStateDto.class) List<Milestone> milestones,UriComponentsBuilder uriComponentsBuilder, final HttpServletRequest request) {
}
但是当我发送以下Json对象时:
[{"id":18,"state":"FINALIZED"},{"id":19,"state":"FINALIZED"}]
我收到以下错误:
无法读取HTTP消息: org.springframework.http.converter.HttpMessageNotReadableException: JSON解析错误:无法反序列化的实例
com.espiritware.opusclick.dto.MilestoneUpdateStateDto
出 START_ARRAY令牌;嵌套异常为 com.fasterxml.jackson.databind.exc.MismatchedInputException:无法 反序列化的实例com.espiritware.opusclick.dto.MilestoneUpdateStateDto
出 START_ARRAY令牌
我的问题是,我应该从后端做些什么才能能够无错误地接收此对象?
非常感谢!
答案 0 :(得分:0)
将您的方法签名更新为
@RequestMapping(value = "/contracts/{id}/milestones", method = RequestMethod.PUT, headers = "Accept=application/json")
@ResponseBody
@Transactional
public ResponseEntity<?> updateContractMilestones(
@PathVariable("id") String contractId,
List<MilestoneUpdateStateDto> milestones,
...
)
并尝试使用此JSON
{
[
{"id":18, "state":"FINALIZED"},
{"id":19, "state":"FINALIZED"}
]
}