Spring RequestBody无法正确解析datetime时区

Question

我有一个简单的rest服务来存储时间范围，然而，Spring不能正确解析带有时区的datetime格式。

该实体是

@Data
@Entity
public class TimeRange {
@Setter(AccessLevel.NONE)
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;

@Column(nullable = true)
private LocalDateTime startTime;

@Column(nullable = true)
private LocalDateTime endTime;
}

@PostMapping(path = "/time", consumes = "application/json", produces = "application/json")
public Boolean setTime(@RequestBody TimeRange timeRange) {
    timeRangeRepository.save(timeRange);
    return true;
}

url = f'http://localhost/api/time'
data = {
  "startTime": "2019-12-03T19:58:29.047820+08:00",
  "endTime": "2019-12-04T19:58:29.047820+08:00"}
resp = requests.post(url, json=data, timeout=10)
pprint(resp.json())

 esolved [org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: 
Cannot deserialize value of type `java.time.LocalDateTime` from String "2019-12- 

Answer 1

您有一个带有偏移量的日期，如果您的所有日期的格式相同，您可以创建一个自定义反序列化程序，如下所示

public class CustomLocalDateTimeDeserializer extends StdDeserializer<LocalDateTime> {
   private static final long serialVersionUID = 1L;

    public CustomLocalDateTimeDeserializer () {
        this(null);
    }

    protected CustomLocalDateTimeDeserializer (Class<?> vc) {
        super(vc);
    }

    @Override
    public LocalDateTime deserialize(JsonParser arg0, DeserializationContext arg1)
        throws IOException, JsonProcessingException {
        return LocalDateTime.parse(arg0.getValueAsString(), DateTimeFormatter.ISO_OFFSET_DATE_TIME);
    }

}

并使用@jsondeserialize注释字段

@JsonDeserialize(using = CustomLocalDateTimeDeserializer.class)
private LocalDateTime startTime;

@JsonDeserialize(using = CustomLocalDateTimeDeserializer.class)
private LocalDateTime endTime;

如果您想用相同的格式序列化您的日期，您必须创建一个自定义序列化程序